{"id":117,"date":"2010-03-20T19:13:16","date_gmt":"2010-03-20T11:13:16","guid":{"rendered":"http:\/\/alfanso10.esy.es\/?p=117"},"modified":"2017-05-21T16:29:25","modified_gmt":"2017-05-21T08:29:25","slug":"petronas-turkmenistan-block-1-gas-development-project","status":"publish","type":"post","link":"https:\/\/alfanso10.com\/?p=117","title":{"rendered":"Petronas Turkmenistan Block 1 Gas Development Project"},"content":{"rendered":"<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong>COMPANY: Sigur Ros Turkmenistan\u00a0<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PROJECT TITLE: Petronas Turkmenistan Block 1 Gas Development Project\u00a0<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>CLIENT:\u00a0PETRONAS\u00a0Turkmenistan<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>LOCATION:\u00a0Turkmenistan<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>YEAR: 2009-2011<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>VESSEL: Derrick Lay Barge (DLB) Armada Installer<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SCOPE OF WORK:\u00a0<\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">SUBCONTRACTOR will undertake the WORK for the following facilities to be developed under the PROJECT<strong>:<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Export submarine pipelines from Magtymguly (MCR-A) to Kiyanli OGT (separate gas and condensate pipelines, inclusive of pre-installed pipeline risers at MCR-A)<\/span><\/li>\n<li><span style=\"color: #000000;\">26\u201d \u00c6 gas export pipeline, approximately 73km in length.<\/span><\/li>\n<li><span style=\"color: #000000;\">12\u201d \u00c6 condensate export pipeline, approximately 73km in length.<\/span><\/li>\n<li><span style=\"color: #000000;\">MEG supply pipeline from Kiyanli OGT to Magtymguly (MCR-A) (inclusive of the pre-installed pipeline riser at MCR-A)<\/span><\/li>\n<li><span style=\"color: #000000;\">4\u201d \u00c6 MEG supply pipeline, approximately 73km in length (this line will piggyback on the 12\u201d \u00c6 condensate pipeline).<\/span><\/li>\n<li><span style=\"color: #000000;\">Condensate loading pipelines from the OGT to the SPM buoy<\/span><\/li>\n<li><span style=\"color: #000000;\">2 x 12\u201d \u00c6 condensate loading pipelines, approximately 7km in length each.<\/span><\/li>\n<li><span style=\"color: #000000;\">SPM buoy, complete with mooring system, risers and PLEM (engineering and procurement by others).<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The signing entities for the SUBCONTRACT are between MMHE and SGRSB.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>MY INVOLVEMENT:<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">I was invlove for the following for this project:<\/span><\/p>\n<p><span style=\"color: #000000;\">12 x 4&#8221; piggy back including beach pull started<\/span><\/p>\n<p><span style=\"color: #000000;\">26&#8221; pipelay including beach pull<\/span><\/p>\n<p><span style=\"color: #000000;\">The above invovlment is detailed below<\/span><\/p>\n<p><span style=\"text-decoration: underline; color: #000000;\"><strong>INTRODUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Petronas Carigali (Turkmenistan) Sdn Bhd (COMPANY), a wholly owned exploration and production subsidiary of PETRONAS, has entrusted Malaysia Marine and Heavy Engineering Sdn Bhd (MMHE) and Technip Geoproduction (M) Sdn Bhd (CONTRACTOR) to undertake the development of the Onshore Gas Terminal (OGT) and Magtymguly field which are located in Block 1 offshore of Turkmenistan (referred to as PETRONAS CARIGALI TURKMENISTAN BLOCK 1 GAS DEVELOPMENT PROJECT &#8211; hereinafter referred to as the \u201cPROJECT\u201d).<\/span><\/p>\n<p><span style=\"color: #000000;\">The Turkmenistan Block 1 field is an elongated field approximately 50 to 60 km long and 10 km wide offshore Turkmenistan. The Block 1 deposits will be accessed using a phased development plan sufficient to maintain a substantial flow rate for a number of years.<\/span><\/p>\n<p><span style=\"color: #000000;\">CONTRACTOR has subcontracted part of the PROJECT to Sigur Ros Sdn Bhd (SGRSB) (SUBCONTRACTOR) to perform the \u201cWORK\u201d as specified in the subcontract.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong><span style=\"text-decoration: underline;\">FIELD LOCATION<\/span><\/strong><\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\"><strong><span style=\"text-decoration: underline;\">MOBILIZATION<\/span><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Vessel was constructed solely for this project. Built in Singapore It was charted by Petronas for 8 years.<\/span><\/p>\n<h3><span style=\"color: #000000;\">26\u201d GAS PIPELINE FROM MCR-A TO OGT<\/span><\/h3>\n<p><span style=\"color: #000000;\"><strong>DESCRIPTION OF PIPELINE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The proposed 26\u201d \u00d8 Pipeline will be laid as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">26\u201d \u00d8 x 73 km pipeline from proposed MCR-A platform to Onshore Gas Terminal (OGT) will be laid in two portions. First portion of the pipeline, referred as Section A, will be laid from OGT (KP 73.0) to the Mid Point Tie-In (KP 66.0) location. The remaining portion, referred as Section B will be laid from the proposed MCR-A platform (KP 0.00) to Mid Point Tie-In location. Approximate number of joints to be laid for Section A is 328 joints and Section B is 5656 joints. These two sections will be joined up using above water Mid Point Tie-In at KP 66.0.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>SCOPE \/ SEQUENCE OF WORK<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This procedure is divided into Section A and Section B. \u00a0Section A covers the pipelaying activity from OGT (KP 73.0) to Mid Point Tie-In location (KP 66.0). The pipeline will be laid upon the completion of 2 X 12\u2019\u2019 \u00d8 pipeline from OGT to SPM. The beach pull method will be utilized as a start-up for Section A. Refer to Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/p>\n<p><span style=\"color: #000000;\">Section B covers the pipelaying installation method from the proposed MCR-A platform (KP 0.00) to Mid Point Tie-In location. The pipe laying will commence after the completion of 12\u2019\u2019 &amp; 4\u2019\u2019 \u00d8 x 73km piggyback pipeline. The pipeline will be initiated using Deadman Anchor (DMA) start-up method at the proposed MCR-A platform.<\/span><\/p>\n<p><span style=\"color: #000000;\">SUBCONTRACTOR scope and work sequences of the 26\u2019\u2019 \u00d8 pipeline x 73 km are summarized as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Transportation and installation engineering documents.<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform pre-lay survey of the 26\u2019\u2019 \u00d8 pipeline (Refer to Document No. SR-TKM-OPR-GEN-02, Pre-Installation Survey Report for Proposed Pipelines and SPM\/PLEM).<\/span><\/li>\n<li><span style=\"color: #000000;\">Transport linepipes and other appurtenances. Refer to Document No. SR-TKM-OPR-GEN-14, General Loadout Coordination Manual for Pipelines.<\/span><\/li>\n<li><span style=\"color: #000000;\">Set-up DLB Armada Installer at 400m from OGT for 12\u201d x 4\u201d \u00c6 pipeline shore pull. Refer to Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Shore pull 12\u201d x 4\u201d \u00c6 pipeline until pulling head reaches shore. Refer to Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue lay 12\u201d x 4\u201d \u00c6 pipeline until KP 65 and laydown pipeline in designated target box 5m (lateral) x 5m (longitudinal). Refer to Document No. SR-TKM-OPR-OGT-MCRA-P102, Pipeline Installation Procedure 12\u201d Condensate Pipeline MCR-A to OGT and 4\u201d MEG Pipeline Piggy Back.<\/span><\/li>\n<li><span style=\"color: #000000;\">Set-up DLB Armada Installer at 400 m from OGT for 26\u2019\u2019 \u00d8 pipeline shore pull. Refer to Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Shore pull 26\u2019\u2019 \u00d8 pipeline until pulling head reaches shore. Refer to Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue lay 26\u2019\u2019 \u00d8 pipeline until 7 km (approximately 573 joints) from OGT and laydown pipeline in designated target box 5 m (lateral) x 5 m (longitudinal) at Mid Point (KP 66.00) Tie-In location.<\/span><\/li>\n<li><span style=\"color: #000000;\">Set-up DLB Armada Installer at KP 68.50 for 12\u201d x 4\u201d \u00c6 pipeline recovery. Refer to Document No. SR-TKM-OPR-OGT-MCRA-P102, Pipeline Installation Procedure 12\u201d Condensate Pipeline MCR-A to OGT and 4\u201d MEG Pipeline Piggy Back.<\/span><\/li>\n<li><span style=\"color: #000000;\">Recover the 12\u201d x 4\u201d \u00c6 pipeline and continue 12\u201d x 4\u201d \u00c6 pipeline laying until laydown at proposed MCR-A platform. Refer to Document No. SR-TKM-OPR-MCRA-OGT-P102, Pipeline Installation Procedure &#8211; 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked.<\/span><\/li>\n<li><span style=\"color: #000000;\">Set-up DLB Armada Installer at proposed MCR-A platform for 26\u2019\u2019 \u00d8 pipeline Deadman Anchor start-up. The target box for anchors deployment is 1.4 m (lateral) x 5 m (longitudinal).<\/span><\/li>\n<li><span style=\"color: #000000;\">Lay approximately 5409 joints of concrete coated linepipes onto proposed pipeline route<\/span><\/li>\n<li><span style=\"color: #000000;\">Lay down pipeline in designated target box, 5 m (lateral) x 5 m (longitudinal) at Mid Point Tie-In location (KP 66.0).<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform Mid Point Tie-In (Refer to Document No. SR-TKM-ENG-MCRA-OGT-P208, 26\u2019\u2019, MCR-A\/OGT Mid Point Tie-In Procedure).<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform post-lay survey on the newly laid pipeline, determine free span locations and<\/span><br \/>\n<span style=\"color: #000000;\"> Refer to Document No. SR-TKM-OPR-GEN-03, Post-Installation Survey Procedure for Proposed Pipelines and SPM\/PLEM. Free span rectification works shall be carried out using grout bags prior to flooding pipeline for spool installation.<\/span><\/li>\n<li><span style=\"color: #000000;\">If smart plug is to be utilized for spool installation at MCR-A, flooding the entire pipeline is not required. Free span rectification work shall be performed before pipeline pre-commissioning. (Note: Utilization of smart plug is subjected to CONTRACTOR\u2019s confirmation)<\/span><\/li>\n<li><span style=\"color: #000000;\">Install subsea spool at MCR-A. Refer to Document No. SR-TKM-OPR-GEN-07, Subsea Spool Installation Procedure.<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform pre-commissioning work on the newly laid 26\u201d \u00c6 Refer to Document No. SR-TKM-OPR-MCRA-OGT-P203, Pre-Commissioning of 26\u201d \u00c6 Gas Pipeline from MCR-A to OGT.<\/span><\/li>\n<li><span style=\"color: #000000;\">Provision of as-built documentation. Refer to Document No. SR-TKM-OPR-MCRA-OGT P204, As-Built Report \u2013 26\u201d \u00c6 Pipeline from MCR-A to OGT.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The final sequence of pipelay may be revised as required to suit the agreed offshore installation schedule with COMPANY.<\/span><br \/>\n<span style=\"color: #000000;\"> <strong>INSTALLATION SUMMARY<\/strong><\/span><\/p>\n<table style=\"height: 640px;\" width=\"787\">\n<tbody>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Proposed MCR-A Coordinate (Centre of Jacket)<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: E 603521.16<\/span><br \/>\n<span style=\"color: #000000;\"> N 4397139.31<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Start Point Coordinate at MCR-A\u00a0 (KP 0.00)<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: E 603520.01<\/span><br \/>\n<span style=\"color: #000000;\"> N 4397172.61<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Landing Point Coordinate at OGT<\/span><br \/>\n<span style=\"color: #000000;\"> (KP 72.952)<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: E 650584.68<\/span><br \/>\n<span style=\"color: #000000;\"> N 444697.97<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Coordinate at Mid Point Tie-In<\/span><br \/>\n<span style=\"color: #000000;\"> (KP 66.0)<\/span><\/td>\n<td width=\"389\">\n<table width=\"100%\">\n<tbody>\n<tr>\n<td><span style=\"color: #000000;\">C2<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\">: E 644069.736<\/span><br \/>\n<span style=\"color: #000000;\"> : N 4447593.310<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Tension During Pipelay<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: Section A (OGT To Mid Point Tie-In)<\/span><br \/>\n<span style=\"color: #000000;\"> Start-up tension at 26 MT<\/span><br \/>\n<span style=\"color: #000000;\"> Normal tension: Min. 26 MT &amp; Max. 41 MT<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: Section B (Proposed MCR-A Platform To Mid Point Tie-In)<\/span><br \/>\n<span style=\"color: #000000;\"> Start-up tension at 137 MT<\/span><br \/>\n<span style=\"color: #000000;\"> Normal tension: Min. 41 MT &amp; Max. 137 MT<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: Section A (OGT To Mid Point Tie-In)<\/span><br \/>\n<span style=\"color: #000000;\"> 2.59 m (min) at 11 m water depth<\/span><br \/>\n<span style=\"color: #000000;\"> 3.01 m (max) at 7.6 m water depth<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: Section B (Proposed MCR-A Platform To Mid Point Tie-In)<\/span><br \/>\n<span style=\"color: #000000;\"> 2.59 m (min) at 11 m water depth<\/span><br \/>\n<span style=\"color: #000000;\"> 49.26 m (max) at 63 m water depth<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>LOAD-OUT AND TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The linepipes will be transferred to Turkmenistan Block-1 Gas Development Field using two nos. 200ft class barge and two nos. 272ft class barge.<\/span><\/p>\n<p><span style=\"color: #000000;\">Upon completion of each loadout, the tiedown and seafastening will be carried out to the satisfaction of COMPANY and the appointed third party surveyors.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Document No. SR-TKM-OPR-GEN-14 (General Loadout Coordination Manual for Pipelines) for further details on stowage plan and other related information.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PRE-LOADOUT<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to loadout from the coating yard, inspection list included in Document No. SR-TKM-OPR-GEN-14 (General Loadout Coordination Manual for Pipelines) will be reviewed and completed. Any areas of potential concern will be highlighted to COMPANY. The loadout is also detailed in the above document.<\/span><\/p>\n<p><span style=\"color: #000000;\">Particular attention will be given to:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">End condition of linepipe.<\/span><\/li>\n<li><span style=\"color: #000000;\">Condition of linepipe coating.<\/span><\/li>\n<li><span style=\"color: #000000;\">Linepipes magnetic properties.<\/span><\/li>\n<li><span style=\"color: #000000;\">Concrete and anti-corrosion coating cutback.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>LOADOUT AND TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Loadout list for the linepipes barge for 26\u201d \u00c6 Pipeline from MCR-A to OGT is shown in the Document No. SR-TKM-OPR-GEN-14 (General Loadout Coordination Manual for Pipelines). General arrangement and seafastening details for loadout of the pipeline and miscellaneous items are also included in the above report.<\/span><\/p>\n<p><span style=\"color: #000000;\">A detailed review of all components and materials loaded out will be conducted and checked against the loadout list as described in the Loadout Coordination Manual. Any discrepancies in the quantity and conditions of the pipelines will be highlighted to CONTRACTOR representative and recorded prior to transfer of custody of the transportation barge to SUBCONTRACTOR. A loadout and tie-down arrangements of linepipe bays on the transportation barge are shown in Fig. 2.3-1 and 2.3-2 respectively. The tie-down and loadout arrangements for the subsequent voyages are detailed further in Document No SR-TKM-OPR-GEN-14, General Loadout Coordination Manual for Pipelines.<\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to departure of each transportation barge from the respective loadout location, a three (3) day weather outlook will be obtained from the Meteorological Service and forwarded to the tug boat captain master for his further action. Shelter and safe tow route shall also be identified and briefed to the Tug Master by the Marine Captain.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>START-UP PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INTRODUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SECTION A<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull for the start-up procedure at Section A.The 26\u201d \u00d8 x 4 km from OGT to Mid-Point Pipeline will be laid from OGT shore (KP 73.0) to Mid Point Tie-In (KP 66.0) location utilizing DLB Armada Installer. The barge will be equipped with truss stinger for installation. The 26\u201d \u00d8 pipeline will be started-up utilizing shore approach and beach pull method at the OGT shore, approximately 4km from the landfall point (approx. at KP 0.114).<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SECTION B<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The 26\u201d \u00d8 MCR-A\/OGT pipeline shall be started-up at proposed MCR-A platform (KP 0.00) and laid towards near shore, Mid-Point (KP 66.0) by DLB Armada Installer. DLB Armada Installer will be equipped with truss stinger for installation.<\/span><\/p>\n<p><span style=\"color: #000000;\">The laying of 26\u201d \u00d8 MCR-A\/OGT pipeline shall commence by using 2 nos. 10 MT Delta Flipper for deadman anchor (DMA) start-up method. DLB Armada Installer will be positioned on the Northeast side of proposed MCR-A platform, along the proposed pipeline route. Refer to Section 3.4 for details of the offshore start-up procedure.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BARGE SET-UP AND ANCHOR PATTERN<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The proposed barge approach for set-up anchor patterns for linepipe start-up and pipelay for 26\u201d \u00d8. Gas Pipeline from OGT is shown in Fig. 3.2-1.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>Note:<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This is for information only as actual details will be obtained from General Procedure for Shore Approach and Beach Pull, Doc. No. SR-TKM-OPR-GEN-08.<\/span><\/p>\n<p><span style=\"color: #000000;\">The proposed barge approach for set-up anchor patterns for linepipe start-up and pipelay for 26\u201d \u00c6. Gas Pipeline from MCR-A is shown in Fig. 3.2-2 and Fig. 3.2-3.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PREPARATION AND EQUIPMENT LIST<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Preparations required primarily for linepipe start-up will be described under General Procedure for Shore Approach and Beach Pull, Doc. No. SR-TKM-OPR-GEN-08 and Section 4.2.2.<\/span><\/p>\n<p><span style=\"color: #000000;\">The start-up equipment, installation aids and materials as detailed in the Table A below. Table B gives the check list for the start-up head.<\/span><\/p>\n<table style=\"height: 1165px;\" width=\"796\">\n<tbody>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<strong>ITEM<\/strong><\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\"><strong>DESCRIPTION<\/strong><\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\"><strong>TOTAL QUANTITY<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td colspan=\"2\" width=\"546\"><span style=\"color: #000000;\"><strong><u>DMA START-UP OPERATION<\/u><\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Start-up head OD 660 mm, flange type c\/w by pass<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 no.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">DMA cable, size 2-1\/4&#8221; \u00c6 x 3000 ft lgth<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lgth<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">DMA cable, size 2-1\/4&#8221; \u00c6 x 600 ft lgth<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lgth<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Pennant wire, size 2-1\/4&#8221; \u00c6 x 400 ft lgth<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lgth<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Shackle, Green Pin bow shackle G-6036, WLL 150 MT<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Delta flipper anchor, 10 MT<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Wire lock, 500 cc<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">20 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">8<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Pressure gauge c\/w valid cert (max. test pressure @ 20 bar)<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">9<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">BI-DI pig 26&#8221; \u00a0\u00c6 c\/w 2 nos. sealing dics at each end, pipe ID 625 mm<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Wire rope clips for 2-1\/4\u201d \u00c6 wire rope<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">15 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">11<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">26&#8221; \u00c6 half shell temporary flange protector<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 no.<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td colspan=\"2\" width=\"546\"><span style=\"color: #000000;\"><strong><u>\u00a0<\/u><\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td colspan=\"2\" width=\"546\"><span style=\"color: #000000;\"><strong><u>PIPE HANDLING<\/u><\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td colspan=\"2\" width=\"546\"><span style=\"color: #000000;\"><strong><u>\u00a0<\/u><\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Pipe handling spreader bar<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Pipe handling slings and riggings<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td colspan=\"2\" width=\"546\"><span style=\"color: #000000;\"><strong><u>PIPELAY<\/u><\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">26\u201d \u00c6 internal line-up clamp<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 ea<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">26\u201d \u00c6 external line-up clamp<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 ea<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">26\u201d \u00c6 stop trolley<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 ea<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Holiday detector<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 ea<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">7\/8\u201d \u00c6 IWRC 6&#215;19 Galvanized EIPS for stop trolley<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1,000 ft<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Copper tubing 1\u201d ID x 1.25mm WT (10ft per length)<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">20 lgth<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">White paint (5 litre\/can)<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">10 cans<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">8<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Welding consumables<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">9<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Beveling machines and assembly<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 ea<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Field Joint Coating (Polyken Tape)<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">As required<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">11<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Foam infill (HDPF)<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">As required<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">12<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Galvanized sheet (1200 mm\u00a0 x 3200 mm)<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td colspan=\"2\" width=\"546\"><span style=\"color: #000000;\"><strong><u>GENERAL<\/u><\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">NDT equipment and consumables<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">ROV spread<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Survey spread<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">Diving spread<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">General equipment and consumables related to pipelay activities<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">2 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"49\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"437\"><span style=\"color: #000000;\">A&amp;R winch c\/w cable<\/span><\/td>\n<td width=\"109\"><span style=\"color: #000000;\">1 unit<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table style=\"height: 597px;\" width=\"800\">\n<tbody>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">SR. NO.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">ACTIVITY<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">STATUS<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">CHECKED BY (SUBCONTRACTOR)<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">CHECKED BY (CONTRACTOR\/ COMPANY)<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">1.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check pull head dimension as per drawing<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">2.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Carry out MPI on all WELDS<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">3.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the valve location<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the condition of ball valves<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">5.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the direction of flow through check valve:<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">6.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the Bi-di pigs<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">7.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check bursting disc orientation<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">8.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Leak test completed (7 bar)<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"140\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>DETAILED PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This section details out the steps for DMA start-up operation of 26\u201d \u00d8 MCR-A\/OGT pipeline (Section B). For Section A, the detailed procedure of the start-up is covered in Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/p>\n<p><span style=\"color: #000000;\">This section covers the pipeline start-up activities at proposed MCR-A Platform. The start-up activities are listed below:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Upon DLB Armada Installer arrival at proposed MCR-A platform, set-up barge as per anchor pattern in Fig. 3.2-2. Tension test shall be carried out for all anchor winches before setting up the barge at location. Also, ROV will be deployed within newly laid 12\u2019\u2019x4\u2019\u2019 \u00d8 piggy back pipeline and the area around the proposed 26\u2019\u2019 \u00d8 pipeline start-up target box to ensure that there are no obstructions, limitations or debris that will interfere with the DMA start-up. Any obstructions found shall be removed or relocated.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Safety Note: SUBCONTRACTOR Marine Capt. (MC) and Offshore Construction Supt. (OCS) to ensure proper coordination and communication between anchor handling tugs and main work barge during anchor handling activities and ensure all survey &amp; positioning equipment in working condition and calibrated. Reference for anchor positioning shall be made to the approved anchor patterns and pre-lay survey reports by SUBCONTRACTOR. Limiting weather criteria specifications for all activities will be at Subcontractor\u2019s OCS discretion and governed by Company\u2019s marine guidelines of permitted operations.<\/span><\/p>\n<ol start=\"2\">\n<li><span style=\"color: #000000;\">At the end of Position 2 of anchor set-up in Fig. 3.2-2, bring alongside pipe haul barge on portside and transfer linepipes to the pipe rack and barge deck. The maximum tier for 26\u2019\u2019 \u00c6 is 4.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pre-weld start-up head with 900# WN flange on deck and weld permanent 900# WN flange to the 1<sup>st<\/sup> pipe at beadstall. Perform RT on the weldment. Flange tie-in start-up head (with 1 no. bi-di pig inside) to the first linepipe joint. Install flange guide and transponder. Refer Fig. 3.4-2 to Fig. 3.4-4 for detail.<\/span><\/li>\n<li><span style=\"color: #000000;\">Insert internal line-up clamp into the first pipe joint and commence welding the pipe until the first joint reaches Station No.7. Stop trolley, x-ray crawler and reach rod should be inserted inside the pipes after 7 joints have been welded. Refer to Document No. SR-TKM-WLD-GEN-01, Welding Procedure Specification.<\/span><\/li>\n<li><span style=\"color: #000000;\">Reposition the barge at start-up location. The proposed location of the start-up head will be indicated by the survey target box as per Fig. 3.2-3. However the actual position of the barge will be determined on site base on surveyor\u2019s DGPS positioning and the length of deadman anchor cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy 2 DMA&#8217;s with marker buoy utilizing Anchor Handling Tug (AHT). Refer Fig. 3.4-6a &amp; Fig. 3.4-6b for the proposed sequence of DMA deployment. Field Engineer, Marine Captain and Surveyor to finalize the sequence and deployment location at field based on the actual rigging. Refer Fig. 3.4-5 for the DMA rigging arrangement at MCR-A.<\/span><\/li>\n<li><span style=\"color: #000000;\">Once the anchor is at the seabed, bring the other end of the DMA cable to the DLB Armada Installer. Messenger wire rope will be laid along the stinger to the stinger back-end roller and AHT will pick up the end of the messenger wire rope and connect to the DMA cable end. Another end of the messenger wire rope will be connected to the DLB capstan or tugger winch to pull the DMA cable to the A&amp;R winch.<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform DMA soak test with 1.25 times of the maximum DMA start-up bottom tension which is 121 MT (268 kips) by using A &amp; R winch &amp; &amp; hold for 30 minutes prior to pipelay start-up. Refer to Fig 3.4-7a for the option one of DMA soak test using A &amp; R winch. Refer to Fig. 3.4-7b for the option of DMA soak test using crawler crane.<\/span><\/li>\n<li><span style=\"color: #000000;\">Upon completion of the soak test and no anchor drag is found, finalize the DMA line by applying maximum DMA start-up tension at 137 MT (301 kips) and cut off access length on the DMA sling.<\/span><\/li>\n<li><span style=\"color: #000000;\">Connect the start-up head padeye with 1 no. 150 MT Green Pin GP-6036 shackle to the main DMA cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Reposition the barge as Fig 3.2-2. Continue welding as per the procedure in Section 4 until the start-up head and half joint is protruding on the stinger. Once the start-up head has protruded on the stinger, the tensioner machine is adjusted manually to provide 20 MT (45 kips) of linear tension.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Note: Double check on all valve systems with zero leak tolerance. Ensure ball valves at start-up head is in closed \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 position.<\/span><\/p>\n<ol start=\"12\">\n<li><span style=\"color: #000000;\">Continue movement of the barge ahead until tension is transferred to the start-up cable and further movement ahead increases or allow the pipeline in the tunnel to travel.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue welding and pull the barge ahead. Monitor tension, stinger profile and pipeline profile. Increase tension gradually as per engineering analysis and the details are attached in Section 3.4. There will be no stinger back end roller adjustment throughout the 26\u2019\u2019 \u00c6 Refer to Appendix 5 for anchor uplift force at DMA.<\/span><\/li>\n<li><span style=\"color: #000000;\">When start-up head is approximately 3 meters from seabed, ensure the barge heading is on the proposed route. Deploy ROV to closely monitor the start-up head during lowering down and the pipeline profile. ROV shall take fix coordinate of the start-up head once its on the seabed.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV shall also take fixes at particular field joint locations along the pipeline from the start-up head to check the sagbend profiles. At this moment, the tension should be as specified in the engineering analysis in Section 3.5. The tension on the tensioner will be monitored to avoid DMA dragging during start-up, pipelaying and at any point of time.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV shall continue to closely monitor the pipeline from 1<sup>st<\/sup> joint until the deployment of the buckle detector. The buckle detector will be deployed inside the pipes and attach to the internal line-up clamp using 7\/8\u201d \u00d8 x 1444.92 ft length cable.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">NOTE: The insertion of buckle detector inside the pipes will be easier when more pipe joints are on the seabed such that the back-pressure inside the pipeline being laid is minimized. When pipe joint is no. 93 or more is at the beadstall, buckle detector shall be deployed. Refer Appendix 7 for buckle detector insertion calculation.<\/span><\/p>\n<ol start=\"17\">\n<li><span style=\"color: #000000;\">Continue laying pipe towards OGT as per normal pipelay procedure detailed in Section 4.0.<\/span><\/li>\n<li><span style=\"color: #000000;\">The recovery of the DMA as shown in Fig. 3.4-8 &amp; 3.4-9 utilizing AHT after DLB Armada Installer is 3 km away from proposed MCR-A platform. AHT will move toward North side during DMA line freely drop to ensure that the DMA line is clear from other pipelines routes after resting on seabed. However, the sequence may vary to suit condition at site. Refer Appendix 6 for no. of pipe joints required for DMA retrieval.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>PIPELAYING PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INTRODUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following section describes the method of the pipeline installation deemed applicable for both Section A &amp; Section B. Subcontractor will lay the pipeline in accordance to the conventional lay barge method of welding pipe joints on the barge and pulling the barge along the pipeline route after welding is completed at each welding station.<\/span><\/p>\n<p><span style=\"color: #000000;\">Automatic welding will be primarily be utilized for the pipelay. Refer to Document No. SR-TKM-WLD-GEN-01, Welding Procedure Specification for the various WPS qualified for the installation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Installation Summary<\/u><\/span><\/p>\n<table style=\"height: 404px;\" width=\"808\">\n<tbody>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Max. Water Depth<\/span><\/td>\n<td width=\"389\">\n<table width=\"100%\">\n<tbody>\n<tr>\n<td><span style=\"color: #000000;\">C2<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\">: Section A<\/span><br \/>\n<span style=\"color: #000000;\"> Various from 0.2 m at OGT (KP 73.0) to 18 m at Mid Point<\/span><br \/>\n<span style=\"color: #000000;\"> Tie-In location (KP 66.0)<\/span><\/p>\n<p><span style=\"color: #000000;\">: Section Be<\/span><br \/>\n<span style=\"color: #000000;\"> Various from 63 m at proposed MCR-A platform (KP 0.00)<\/span><br \/>\n<span style=\"color: #000000;\"> to 18 m at Mid Point Tie-In location (KP 66.0)<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Pipelay Tension<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: Section A<\/span><br \/>\n<span style=\"color: #000000;\"> Various from Min. 26 MT to Max. of 41 MT: Section B<\/span><br \/>\n<span style=\"color: #000000;\"> Various from Min. 41 MT to Max. of 137 MT<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed<\/span><\/td>\n<td width=\"389\"><span style=\"color: #000000;\">: Section A<\/span><br \/>\n<span style=\"color: #000000;\"> Min. 2.59 m to Max 3.01 m: Section B<\/span><br \/>\n<span style=\"color: #000000;\"> Min. 3.01 m to Max 49.26 m<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\">The following paramet<em>e<\/em>rs will constantly be controlled and recorded during pipelay:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Elevation of stinger stern-most roller by air diver and onboard pneumo.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipelay tension.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipeline profile between stinger end to touchdown as observed by ROV.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipeline touchdown location as observed by ROV.<\/span><\/li>\n<li><span style=\"color: #000000;\">Gap between stinger back end roller to pipeline.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>EQUIPMENT LIST AND PREPARATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to commencement of pipelay, all preparatory work for the installation will be completed. Equipment required will also be checked and verified for their operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>MATERIAL AND EQUIPMENT LIST FOR PIPELAYING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following materials and equipments are required for general pipelay of 26\u201d \u00d8 pipeline.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\"><strong>ITEM<\/strong><\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\"><strong>DESCRIPTION<\/strong><\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\"><strong>TOTAL QUANTITY<\/strong><\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\"><strong>REMARKS<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td colspan=\"4\" width=\"583\"><span style=\"color: #000000;\"><u>PIPELAYING EQUIPMENTS AND FIELD JOINT MATERIALS<\/u><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">26\u201d \u00c6 internal line-up clamp<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">7\/8\u201d \u00c6 x 4000 ft length IWRC 6&#215;19 galvanized extra improved wire rope for stop trolley<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">\u00a02 reel<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">1\u201d ID x\u00a0 1.25mm WT x 10ft length ea. of copper tubing<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">20 length<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Field Joint Coating (Polyken Tape)<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">As required<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Foam infill (HDPF)<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">As required<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">White paint (5 litre\/can)<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">120 cans<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Swabbing rabbit c\/w brush to suit ID 625mm for internal cleaning<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">8<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">External line-up clamp to suit OD 660<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">9<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Blow down cap c\/w valve &amp; fitting to suit 26&#8221; \u00c6 pipe<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">1 no.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Buckle detector to suit ID 625 mm<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">11<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Gauging plate OD 593.9 mm<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">4 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td colspan=\"4\" width=\"583\"><span style=\"color: #000000;\"><u>WELDING AND QC EQUIPMENT<\/u><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">12<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Welding machines<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">4 sets<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">13<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Welding consumables<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 lot<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">14<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">NDT related equipment and consumable<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">15<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Holiday Detector (Refer Appendix 8 For Specification)<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td colspan=\"4\" width=\"583\"><span style=\"color: #000000;\"><u>PIPE HANDLING<\/u><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">16<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Spreader\/monkey bar, size 3&#8221; dia. SCH 40 x 20 ft lgth pipe<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">17<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Wire rope sling, size 1-1\/4&#8221; dia. X 55 ft lgth, IWRC 6&#215;36 ungalvanized w\/2 ft soft eye and the other end w\/5 ft soft eye, both mechanical spliced<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">4 length<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">18<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Wire rope sling, size 1-1\/4&#8221; dia. X 15 ft lgth, IWRC 6&#215;36 ungalvanized w\/2 ft soft eye, both mechanical spliced<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">4 length<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">19<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Shackle, green pin bow shackle G-4163, WLL 8.5 MT<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">4 nos.<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td colspan=\"4\" width=\"583\"><span style=\"color: #000000;\"><u>SURVEY \/ DIVING \/ ROV<\/u><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">20<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">ROV spread<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">21<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Survey spread c\/w side scans, transponder etc<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">22<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">Diving equipment<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td colspan=\"4\" width=\"583\"><span style=\"color: #000000;\"><u>GENERAL<\/u><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"44\"><span style=\"color: #000000;\">23<\/span><\/td>\n<td width=\"318\"><span style=\"color: #000000;\">General equipments and consumables related to pipelay activities<\/span><\/td>\n<td width=\"108\"><span style=\"color: #000000;\">2 lot<\/span><\/td>\n<td width=\"113\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>\u00a0<\/strong><strong>PREPARATION FOR PIPELAY<\/strong><\/span><br \/>\n<span style=\"color: #000000;\"> The following preparation prior to pipelay start-up will be performed:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Adjust barge and stinger roller heights according to engineering analysis Document No. SR-TKM-OPR- MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT. The stinger roller height configuration for 26\u201d pipelay from beach pull to mid line tie-in point (Section A pipeline)is the same as 2&#215;12&#8243; dia. NPS condensate export pipeline OGT to\/from SPM and 12\u201d condensate pipeline MCR-A to OGT and 4\u201d MEG pipeline piggy back pipelay.<strong>Note:<\/strong>For the Section B pipeline, the stinger rollers height configurations are different from the Section A pipeline. Prior commence Section B pipeline DMA start-up at proposed MCR-A platform, the stinger shall be de-rigged and towed back to shore for stinger roller height adjustment. The height adjustment shall accordance to engineering analysis Document No. SR-TKM-OPR- MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT.<\/span><\/li>\n<li><span style=\"color: #000000;\">Service and adjust tracks on pipe tensioning machines prior to start-up operation.<\/span><\/li>\n<li><span style=\"color: #000000;\">Check pipe rack and line-up station equipment is operational including buckle detector, X-ray crawler, stop trolley, internal line-up clamp.<\/span><\/li>\n<li><span style=\"color: #000000;\">Check stinger valves, control panel, video, underwater cameras, rollers and load cell are in working order.<\/span><\/li>\n<li><span style=\"color: #000000;\">Insert Bi-Di pig into start-up head.<\/span><\/li>\n<li><span style=\"color: #000000;\">Check the valve at the start-up head is closed and plugs are installed. Ensure compatible hose connections are available (for contingency).<\/span><\/li>\n<li><span style=\"color: #000000;\">Ensure materials and equipments for the field joint coating i.e. Polyken 980-SSJ-X and foam operations are readily available.<\/span><\/li>\n<li><span style=\"color: #000000;\">Check that the constant tension winch for laydown\/abandonment of pipeline is operational.<\/span><\/li>\n<li><span style=\"color: #000000;\">Ensure sufficient quantity of white marine paint is available for marking joint.<\/span><\/li>\n<li><span style=\"color: #000000;\">Test all survey equipment of both pipelay barge and Anchor Handling Tug (AHT). Test and calibrate accordingly.<\/span><\/li>\n<li><span style=\"color: #000000;\">Test all NDT equipment i.e. NDT crawler, automatic processor etc. Ensure sufficient supplies of radiographic films, chemical, screen etc are available.<\/span><\/li>\n<li><span style=\"color: #000000;\">Set-up current meter at bow of pipelay to monitor change in current speed and direction during pipelay.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>DETAILED PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following subsections detail the procedures relevant to the pipelay operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BARGE RAMP AND STINGER DETAILS<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Barge\/Stinger Roller Height and Spacing<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The 26\u201d \u00c6 pipelay will be carried out by Armada Installer with the barge and stinger roller heights set in accordance to Fig. 4.3.1-3 to 4.3.1-4 for both Section A &amp; Section B.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Barge\/Stinger Details<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The installation engineering has assumed the following barge attitude for pipelay activities:<\/span><\/p>\n<p><span style=\"color: #000000;\">Fwd draught\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.1 m (bow)<\/span><\/p>\n<p><span style=\"color: #000000;\">Aft draught\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4.1 m (stern)<\/span><\/p>\n<p><span style=\"color: #000000;\">Trim by Stern\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0 degree<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 50.5m Floating Stinger<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Stinger Operation<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The stinger ballasting operations will be controlled from the control panel located at the stern of the barge. The pipe will be monitored visually by the stinger technician\/diving crew using a subsea camera mounted at the last stern rollers of the stinger. A closed-circuit TV will be made available in the diver shack and connected to the subsea camera. The elevation of the rollers shall be logged every 30 minutes of the pipe pull.<\/span><\/p>\n<p><span style=\"color: #000000;\">During pipelay operation, pipeline monitoring by diver and ROV shall be conducted at minimum frequency of three (3) times per shift. However, the frequency may be increased as required during critical situations or activities such as pipelay start-up and laydown operations.<\/span><\/p>\n<p><span style=\"color: #000000;\">The stinger-rollers elevation will be constantly monitored especially when the water depth changes by installing a depth gauge at the end of the stinger. The designed elevations for various water depths along the pipeline route shall follow those in the Procedure No. SR-TKM-OPR- MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELAY BARGE\u00a0<\/strong><b>ARRANGEMENT<\/b><\/span><br \/>\n<span style=\"color: #000000;\"> The table below shows the details the activities that will be performed in each station of the pipe ramp on the barge during the 26\u201d \u00c6 pipelay. The pipe ramp is illustrated in Fig. 4.3.2-1.<\/span><\/p>\n<p><span style=\"color: #000000;\">Pipe Ramp Activity Arrangement (Automatic Welding)<\/span><\/p>\n<table style=\"height: 360px;\" width=\"768\">\n<tbody>\n<tr>\n<td width=\"192\"><span style=\"color: #000000;\"><strong>STATION NO.<\/strong><\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\"><strong>ACTIVITY<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Root \/ Hot Pass \/ Fill #1 &amp; #2 \/ Fill #3 &amp; #4 \/ Capping, Visual Touch-up \/ Radiographic Inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Fill #1 &amp; #2 \/ Fill #3 &amp; #4 \/ Capping, Visual &amp; Touch-up \/ Radiographic Inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Fill #3 &amp; #4 \/ Capping, Visual &amp; Touch-up \/ Radiographic Inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Capping, Visual and Touch-up<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Radiographic Inspection \/ Repair<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Radiographic Inspection \/ Repair<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Polyken 980-SSJ-X Application<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"192\"><span style=\"color: #000000;\">8<\/span><\/td>\n<td width=\"351\"><span style=\"color: #000000;\">Field Joint Foam Infill<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>BARGE SET-UP<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">For barge anchor patterns, refer Fig. 3.2-2 &amp; 5.3-1 for pipelay start-up at proposed MCR-A platform and laydown at proposed Mid Point Tie-In location respectively at Section A. For Section B the barge set-up is covered in Document No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/p>\n<p><span style=\"color: #000000;\">During normal pipelay, four (4) bow anchors will be run at a maximum of approximately 1200 m and minimum cable length paid out on the stern anchors is approximately 700 m. The total anchor wire length in the drum is about 1700 m.<\/span><\/p>\n<p><span style=\"color: #000000;\">For further details of the anchor handling procedure and anchor cable catenaries, please refer to Document No. SR-TKM-MRN-GEN-06, Anchor Handling Procedure.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELAY VARIABLES<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The pipelay engineering analysis recommendation of the optimum pipelay tension is shown in the following page, extracted from the Engineering Analysis Document No. SR-TKM-OPR- MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT. Optimum stinger roller heights at stern for the entire pipelay route are also stipulated in the analysis.<\/span><\/p>\n<p><span style=\"color: #000000;\">Since the variation in tide is very minimal, the sensitivity analysis for water depth variation is not carried out. The pipelay analysis allows for the following variations from the optimum\u00a0 whilst still maintaining a combined stress level below the allowable value.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Barge tension of \u00b1 10 MT for all the varying water depths<\/span><\/li>\n<li><span style=\"color: #000000;\">\u00b1 5% increase in submerged weight<\/span><\/li>\n<li><span style=\"color: #000000;\">\u00b1 0.5 deg. in barge trim<\/span><\/li>\n<li><span style=\"color: #000000;\">90 deg. beam sea current (1 year)<\/span><\/li>\n<li><span style=\"color: #000000;\">Max &amp; min stinger elevation<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>SURVEY &amp; POSITIONING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Tolerance<\/u> (According to PTS 20.120)<\/span><\/p>\n<p><span style=\"color: #000000;\">The pipeline will be laid along the routes defined in alignment sheets. The maximum deviation from alignment along the prescribed route shall be 15 m except within 450 m of the riser where the maximum allowable deviation shall be reduced as follows:<\/span><br \/>\n<span style=\"color: #000000;\"> i) From 450 m to 150 m from riser &#8211; tapering from 15 m to 3 m<\/span><br \/>\n<span style=\"color: #000000;\"> ii) Within 150 m from riser \u2013 3 m<\/span><br \/>\n<span style=\"color: #000000;\"> iii) At pipeline\/riser interface the deviation shall be sufficiently small to allow installation in the riser clamps without introducing bending stresses in the riser<\/span><\/p>\n<p><span style=\"color: #000000;\">Where the pipeline is installed adjacent to an existing pipeline a minimum separation of 15 meters shall be maintained, except at the platform approach.<\/span><\/p>\n<p><span style=\"color: #000000;\">During critical lay at curvatures, ROV will monitor pipeline location to monitor pipeline location ensuring the pipeline within +\/- 15 m tolerance. Refer Appendix 9 for the 26\u2019\u2019 \u00c6 pipelay route curvature.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Pre-Survey<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The pre-installation route survey for the 26\u201d \u00c6 pipeline will be carried out prior to pipelay. Refer to Document No. SR-TKM-OPR-GEN-01, Pre-Installation Survey Procedure for Proposed Pipeline and SPM\/PLEM.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Barge Positioning <\/u><\/span><br \/>\n<span style=\"color: #000000;\"> Barge will be positioned primarily using navigation DGPS Positioning Systems. The systems use multiple onshore reference DGPS station to determine pseudo range data link. The DGPS<\/span><\/p>\n<p><span style=\"color: #000000;\">positioning system will be available onboard as a back-up system if required and to provide constant online QA\/QC checks against the navigation DGPS Positioning Systems.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Anchor Handling Tug Positioning <\/u><\/span><br \/>\n<span style=\"color: #000000;\"> The anchor handling vessels will be using the Barge Management System (BMS) controlled from barge as their positioning system. The system works in conjunction with the Tug Management System installed on both anchor handling tugs. The tug\u2019s position will be continually transmitted to the barge via UHF radio link. On the BMS monitor the outline of each tug is shown in a different colour for easy identification. During anchor running, the Surveyor on duty will enter the coordinates of the proposed anchor position into the BMS system. A printout of the target position will be automatically generated and the position will be transmitted by telemetry link to the selected Tug Management System on the Tug.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Pipeline Positioning \/ Survey <\/u><\/span><br \/>\n<span style=\"color: #000000;\"> A software package will be used as the online computer navigation system provided by Veripos, which is interfaced with 1 x Inmarsat DGPS as Primary through High Power Spot Beam 109E and 1 x Secondary DGPS through High Power IOR. For positioning of pipeline start-up and laydown, the ultra-short baseline (USBL) beacon will be mounted on the ROV which will be tracked using a USBL Transceiver which will be installed on the over the side pole mounting and a long deck cable is used to connect to the top side unit in the barge bridge. Control will be interfaced to the surface navigation system. All subsea pipeline\/cable positioning will be carried out using the USBL system and the ROV.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>As-Laid Survey<\/u><\/span><br \/>\n<span style=\"color: #000000;\"> The as-laid side-scan survey of the 26\u201d \u00c6 pipeline will be carried out by SUBCONTRACTOR. This will be completed to determine the free span locations. The details of allowable free spans are shown in COMPANY\u2019s approved for construction pipeline alignment sheets.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>LINEPIPE HANDLING<br \/>\n<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The sling arrangements for lifting of the linepipes from the material barge onto the deck of derrick lay barge and from the deck into the transfer station are shown in Fig. 4.3.6-1. Use average pipe length = 12.2m. Linepipe joint unit weights are as follows:<\/span><\/p>\n<table style=\"height: 437px;\" width=\"805\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"224\"><span style=\"color: #000000;\"><strong>PIPE DESCRIPTION<\/strong><\/span><\/td>\n<td style=\"text-align: center;\" width=\"144\"><span style=\"color: #000000;\"><strong>CONCRETE COATING THICKNESS\/DENSITY<\/strong><\/span><\/td>\n<td style=\"text-align: center;\" width=\"112\"><span style=\"color: #000000;\"><strong>EMPTY WEIGHT IN AIR (MT)<\/strong><\/span><\/td>\n<td style=\"text-align: center;\" width=\"112\"><span style=\"color: #000000;\"><strong>EMPTY WEIGHT IN WATER (MT)<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">125mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">15.151<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">6.806<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">105mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">13.052<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">5.417<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">90mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">11.540<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">4.415<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">80mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">10.560<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">3.766<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">75mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">10.078<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">3.447<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">65mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">9.133<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">2.822<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"224\"><span style=\"color: #000000;\">660mm OD x 17.5mm WT x 5.5 AE<\/span><\/td>\n<td width=\"144\"><span style=\"color: #000000;\">50mm \/ 3,040kg\/m<sup>3<\/sup><\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">7.760<\/span><\/td>\n<td width=\"112\"><span style=\"color: #000000;\">1.913<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>LINEPIPE PREPARATION<\/strong><strong>\u00a0<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Followings are activities to be carried out for each pipe joint before reaching the line-up station:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Bevel\/end-prep the joint ends to J-bevel using 26\u2019\u2019 \u00c6 pipe facing machines prior to transferring into ready rack. Refer to Appendix 10 for bevel requirement.<\/span><\/li>\n<li><span style=\"color: #000000;\">Prepare the ready rack with the appropriate pipe joints. The linepipe description (i.e. anode, plain, colour code etc) for each joint number assignment is given in Table 1.2.1 &amp; Table 1.2.4. The input i.e. pipes in the table will be updated continuously depending on the exact pipe length and the actual measured KP by surveyor.<\/span><\/li>\n<li><span style=\"color: #000000;\">Register the pipe joint number, plain\/anode and length in the standard pipe tally sheets for daily submission to COMPANY. Refer to Fig. 4.3.7-1 for pipe tally sheet pro-forma.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pre-heat both ends of the pipe joint when pipe enters the line-up station.<\/span><\/li>\n<li><span style=\"color: #000000;\">Paint the sequential joint number onto each pipe. The number needs to be painted on the \u201cbow\u201d end of each pipe joint in the 10 o\u2019clock and 2 o\u2019clock positions with white quick drying marine paint.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>WELDING \/ NDT \/ WELD REPAIR<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Welding, NDT and weld repair procedures have been prepared in accordance to COMPANY Specification, Pipeline Welding and Inspection. Details of the welding, NDT, repair and field joint coating activities at each station are summarized in Section 4.3.2 table. The drawings for internal pipeline equipment are shown in Fig. 4.3.8-1 to 4.3.8-6. The cut back requirement for the auto welding machine is shown in Fig. 4.3.8-7.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>WELDING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Pipeline Welding Procedures can be found in Document No. SR-TKM-WLD-GEN-01, Welding Procedure Specification.<\/span><\/p>\n<p><span style=\"color: #000000;\">An internal line-up clamp will be used to align and fix the pipe for the root and hot pass in weld Station No.1 or otherwise known as beadstall. Note that the linepipe is seamed pipe and at the ends of each joint will be re-beveled outside the ready rack prior to transfer to the beadstall.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>NDT<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">All pipeline welds shall be subjected to 100% radiographic inspection which will be carried out in Station No.5 or 6. Station No. 1 to 4 will be used as an optional radiographic inspection station if required. SUBCONTRACTOR will carry-out a mock-up on the barge to verify the quality of the film and measure radiation level prior to pipelaying. Project specific pipeline NDT procedure are detailed in Document No. SR-TKM-NDT-GEN-06, Provision of General NDT Procedure for Pipeline (26\u201d OD\/12\u201d OD\/4\u201d Piggyback).<\/span><\/p>\n<p><span style=\"color: #000000;\">An internal X-ray crawler will be utilized to obtain radiographic image of every field joint weldment. The X-ray crawler arrangement for the 26\u2019\u2019 \u00c6 pipeline is shown in Fig. 4.3.8-3. Re-shoot needs to be carried if the quality and density of the film does not meet the specification requirement. The film will be developed and image interpreted by radiograph interpreters.<\/span><\/p>\n<p><span style=\"color: #000000;\">Precautions as listed below will be implemented to reduce risk of personnel exposure to radiation (on the derrick barge and adjacent materials barges\/vessels).<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Adherence to warning signs \u2013 only authorized personnel shall be in the immediate radiograph location.<\/span><\/li>\n<li><span style=\"color: #000000;\">Whilst the radiograph warning light is flashing, all personnel are keep out of the area.<\/span><\/li>\n<li><span style=\"color: #000000;\">A safe distance from the radiograph station will be pre-determine and fenced off.<\/span><\/li>\n<li><span style=\"color: #000000;\">For radiograph inspection outside of the dedicated station (i.e. for weld repair situations), the following steps will be taken:<\/span><br \/>\n<span style=\"color: #000000;\"> i) A moveable \u201cdog house\u201d lead shield shall be placed over the immediate radiograph The lead shield shall prevent radiation exposure above and from the sides of the shield.<\/span><br \/>\n<span style=\"color: #000000;\"> ii) Shielding shall be placed upon the floor to protect those below.<\/span><br \/>\n<span style=\"color: #000000;\"> iii) Radiation survey meters shall be used to ensure the operation is not exposing \u00a0\u00a0personnel to radiation.<\/span><\/li>\n<li><span style=\"color: #000000;\">Audible signals are also provided to warn personnel.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>WELD REPAIR<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Weld repair will be carried out subject to approval in conjunction with Doc. No. PTS 20.120 by COMPANY, The weld acceptance criteria shall be in accordance to API 1104 Section 6.<\/span><\/p>\n<p><span style=\"color: #000000;\">Weld repair length calculations are as per engineering calculation for weld repairs at Station No. 5 and 6 on the barge. The maximum gouge lengths for both stations are as specified in the above document. Weld repair will be carried out manually using SMAW process. Refer to Section 4.4 for extract from Document No. SR-TKM-OPR-MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BUCKLE DETECTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A buckle detector assembly will be positioned at a minimum of 4 joints past the furthest touchdown point. This assembly will provide a mean of identifying any deformity occurring in the pipe string after the string has left the lay barge.<\/span><\/p>\n<p><span style=\"color: #000000;\">The buckle detector system set-up will consist of the following components:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">One buckle detector system completes with 6mm thk. aluminium gauging plate.<\/span><\/li>\n<li><span style=\"color: #000000;\">7\/8\u201d OD x 4000 ft lgth (inclusive 100% back up) wire cable<\/span><\/li>\n<li><span style=\"color: #000000;\">1\u201d ID x 0.049\u201d WT x 10 ft lgth copper tubbing (20 nos. inclusive 100% back up)<\/span><\/li>\n<li><span style=\"color: #000000;\">X-ray stop trolley<\/span><\/li>\n<li><span style=\"color: #000000;\">26\u201d \u00c6 internal line-up clamp<\/span><\/li>\n<li><span style=\"color: #000000;\">5 MT air tugger<\/span><\/li>\n<li><span style=\"color: #000000;\">5 MT Load cell with gauge readout<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The X-ray stop trolley will be attached to the 7\/8\u201d dia. cable between Station 7 &amp; 8. A 7\/8\u201d dia. cable connected to the end of the line-up clamp reach rod and terminating at an air tugger located on the bow completes the assembly.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Fig. 4.3.8-1 &amp; 4.3.8-2 for the proposed assembly of a 26\u201d \u00c6 buckle detector. Gauging plate will be fixed at 593.9 mm diameter which is based on the DnV 1981 rule:<\/span><\/p>\n<p><span style=\"color: #000000;\">\u00d8\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (D \u2013 2t) \u2013 0.01D \u2013 0.4t \u2013 5P<\/span><\/p>\n<p><span style=\"color: #000000;\">Where<\/span><\/p>\n<p><span style=\"color: #000000;\">D \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Nominal OD of pipe (660 mm)<\/span><\/p>\n<p><span style=\"color: #000000;\">t \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 =\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Wall thickness of pipe (17.5 mm)<\/span><\/p>\n<p><span style=\"color: #000000;\">P \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 = \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.2t or 5 mm whichever is smaller<\/span><\/p>\n<p><span style=\"color: #000000;\">The insertion of buckle detector inside the pipes will be easier when more joints are on the seabed such that the back pressure inside the pipeline being laid is minimized. When the pipe joint No. 93 or more at the beadstall, buckle detector shall be deployed by blowing down. The deployment will be carried by means of a pneumatic system (blow down cap) incorporated in the assembly. An air hose will be pre-attached to the blowdown cap to supply pressurised air so that the buckle detector can be blown down along the pipeline profile and moves toward touchdown. With each pull of the pipeline, the wire cable will pay out one joint length of cable. Once all cable is paid out, the buckle detector assembly will be pulled forward using air tugger at the bow of the barge. Refer to Fig. 4.3.9-1 for blow down cap assembly.<\/span><\/p>\n<p><span style=\"color: #000000;\">The buckle detector assembly will operate typically as follows:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">When welding has been completed at all stations along the mainline, the cable from the air tugger to the reach rod will be disconnected and the barge move ahead 12.2m.<\/span><\/li>\n<li><span style=\"color: #000000;\">The next joint will be transferred from the ready rack to the line-up station. The air tugger line will then be pulled through the new joint and connected to the line-up clamp reach rod.<\/span><\/li>\n<li><span style=\"color: #000000;\">The air tugger will commence to haul in the cable, the line-up clamp and buckle detector assembly, which will travel up along the pipe string towards the beadstall (Station No.1).<\/span><\/li>\n<li><span style=\"color: #000000;\">The load on the buckle detector assembly, indicated by a gauge mounted on the air tugger will be recorded for each corresponding joint number during each pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Any excessive deviations from the average pull force being recorded will initiate the alarm on the load cell. An immediate investigation will be carried out to ascertain the cause<\/span><\/li>\n<li><span style=\"color: #000000;\">The line-up clamp will be activated and welding commenced.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Fig. 4.3.8-1 to 4.3.8-6 shows the details of internal pipeline equipments, arrangement, cable make-up and installation process.<\/span><\/p>\n<p><span style=\"color: #000000;\">The buckle detector assembly will be removed prior to pipe laydown. The buckle detector will be monitored from the tension gauge for every each pipe pull.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>FIELD JOINT COATING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The field joint coating will be applied in two field joint stations namely Station No. 7 and 8 (if required) after the field welds have been radiographed and visually inspected. The field joint area will be wrapped with cold application coating Polyken 980-SSJ-X and field joint foam infill. The field joint coating is detailed further in Document No. SR-TKM-OPR-GEN-10, Field Joint Coating, Infill and Coating Repair Procedure.<\/span><\/p>\n<p><span style=\"color: #000000;\">The first portion of the field joint coating system i.e. Polyken 980-SSJ-X will be carried out in Station No.7 and 8 (if required). The second portion of the field joint coating system i.e. foam infill will be carried out in Station No.8.<\/span><\/p>\n<p><span style=\"color: #000000;\">Similar application system will be utilized for repair of existing corrosion and concrete coating. If damage on the yard corrosion coating is outside the coverage of the Polyken 980-SSJ-X, an addition 150 mm wide strip will be wrapped around the affected area.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>POLYKEN 980-SSJ-X APPLICATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Primer will not be required with the Polyken 980-SSJ-X proposed for the pipelines temperature ranges when they are utilized on concrete weight coated lines under a joint filling material. The following procedure will be adopted for the application.<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">As specified in the Polyken 980-SSJ-X Datasheet, total weld area, including exposed corrosion coat will be power-wire brushed to remove all rust, weld spatter, insecure mill scale, dirt, dust and other deleterious matter and to be cleaned and dry.<\/span><\/li>\n<li><span style=\"color: #000000;\">The application of Polyken 980-SSJ-X as follows (and also shown in Fig. 4.3.10-1).<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; 450 mm wide Polyken 980-SSJ-X, cold applied pipe wrap, will be applied in a single continuous layer, cigarette wrap, centering on the line of the weld.<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; 150 mm wide strips will be applied in a single continuous layer, cigarette wrap, one at each extremity of the 450 mm wide Polyken 980-SSJ-X pipe wrap, overlapping the corrosion coating by 10 mm.<\/span><\/li>\n<li><span style=\"color: #000000;\">For all cigarettes \u2013 wrap method, application should be with a minimum of 50 mm overlap.<\/span><\/li>\n<li><span style=\"color: #000000;\">Application of Polyken 980-SSJ-X will take place on a clean, dry, firm surface, employing sufficient hand tension to assure a smooth, wrinkle free application.<\/span><\/li>\n<li><span style=\"color: #000000;\">After application, the surface will be holiday tested using Holiday Detector with circle spring electrode capable of measuring at up to 30 kV for Polyken 980-SSJ-X to check integrity between the pipe surface and Polyken 980-SSJ-X. If holiday is detected, the Polyken 980-SSJ-X will be removed and steps 1 to 5 repeated.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>FOAM INFILL ADDITION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Foam infill shall be High Density Polyurethane Foam (Sethane F 160M).<\/span><\/p>\n<p><span style=\"color: #000000;\">The foam shall be applied as a one part system to an O.D equal to the O.D of the concrete weight coating after application of the field joint corrosion coating. Refer to Fig. 4.3.10-2 &amp; Fig. 4.3.10-3 for details.<\/span><\/p>\n<p><span style=\"color: #000000;\">Galvanized sheet (1200 mm x 3200 mm) shall be wrapped over the entire field joint area and extend onto the plant-applied, concrete coating by 200 mm on each side. This form shall be securely mild steel strapped or banded (0.6 mm THK &amp; 19 mm wide) at each end over the concrete coating. To use the form, an opening at the top of the form shall be utilized to fill joint with foam. After filling the mould, the opening will be strapped shut.<\/span><\/p>\n<p><span style=\"color: #000000;\">The following pages are Technical Data Sheet and MSDS of Polyken 980-SSJ-X and\u00a0 Sethane F 160M.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELAY DURING TRANSITION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">During the 26\u2019\u2019 \u00c6 pipelay there will be several pipe transition (different concrete thickness) ranging from 50 mm to 125 mm. Stinger and tensioner need to be adjusted accordingly. Refer Document No. SR-TKM-OPR-MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELINE LAYDOWN \/ ABANDONMENT AND RECOVERY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following laydown procedures will be used at the end of the Section A &amp; Section B pipelay where the laydown target box is pre-determined at KP 66.0 at proposed pipeline Mid-Point tie-in location.\u00a0 However, the exact KP shall be confirmed with Surveyor based on real time final position. The laydown\/abandonment and recovery procedures will also be used if it is required to suspend the pipelay operations due to some unforeseen circumstances such as bad weather.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong><u>Safety Note:<\/u><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">All non-related personnel to stay clear of pipe tunnel during laydown\/abandonment operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>EQUIPMENT LIST AND PREPARATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following items are required in Table A for pipeline laydown. Table B gives the check list for the start-up head.<\/span><\/p>\n<table style=\"height: 429px;\" width=\"781\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\"><strong>ITEM<\/strong><\/span><\/td>\n<td style=\"text-align: center;\" width=\"402\"><span style=\"color: #000000;\"><strong>DESCRIPTION<\/strong><\/span><\/td>\n<td style=\"text-align: center;\" width=\"127\"><span style=\"color: #000000;\"><strong>TOTAL QUANTITY<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">Shackle, 150MT Green Pin Standard Shackles P-6036 bow<\/span><br \/>\n<span style=\"color: #000000;\"> type with safety bolt.<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">2 ea<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">26\u201d OD (660mm) laydown head, welded type<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">2 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">Underwater video camera mounted end of stinger<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">1 set<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">Strip out block to suit laydown winch cable (if required)<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">1 set<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">Wire rope sling, size 2 inch dia. x 20 ft length, IWRC 6&#215;36 EIPS ungalvanized w\/ 2ft soft eye both end mechanical spliced (for sacrificial sling)<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">180MT Capacity of A&amp;R Winch c\/w 76mm (3\u201d) dia. x 1,100 m length cable<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">1 unit<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">ROV c\/w hydraulic cutting arm (Max. wire 3\u2019\u2019 \u00c6 size)<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">1 unit<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">8<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">White\u00a0 Paint (5 liter\/Can)<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">10 cans<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"66\"><span style=\"color: #000000;\">9<\/span><\/td>\n<td width=\"402\"><span style=\"color: #000000;\">Brocco cutting equipment<\/span><\/td>\n<td width=\"127\"><span style=\"color: #000000;\">1 set<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table style=\"height: 857px;\" width=\"785\">\n<tbody>\n<tr>\n<td width=\"45\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">SR. NO.<\/span><\/p>\n<\/td>\n<td style=\"text-align: center;\" width=\"249\"><span style=\"color: #000000;\">ACTIVITY<\/span><\/td>\n<td style=\"text-align: center;\" width=\"137\"><span style=\"color: #000000;\">STATUS<\/span><\/p>\n<p>&nbsp;<\/td>\n<td style=\"text-align: center;\" width=\"135\"><span style=\"color: #000000;\">CHECKED BY (SUBCONTRACTOR)<\/span><\/td>\n<td width=\"125\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">CHECKED BY (CONTRACTOR\/ COMPANY)<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">1.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check pull head dimension as per drawing<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">2.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Carry out MPI on all WELDS<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">3.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the valve location<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">4.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the condition of valves Status(open\/close)<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">5.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Check the Two Bi-di Pigs<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">6.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Gauge Plate signed by all parties<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">7.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Location of pig with gauging plate at the end of pull head.<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"45\"><span style=\"color: #000000;\">8.<\/span><\/td>\n<td width=\"249\"><span style=\"color: #000000;\">Leak test completed (7 bar)<\/span><\/td>\n<td width=\"137\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"135\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"125\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>LAYDOWN PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following steps will be carried out for laydown of the pipeline. Refer to Fig. 5.3-1 for the pipeline laydown anchor pattern at Section A and Section B:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">As the lay barge approaches target laydown KP and coordinates (to be confirmed with Surveyor), prepare the rigging for pipeline laydown. Refer to Fig. 5.3-3 &amp; Fig. 5.3-4 for pipeline laydown rigging arrangement at Section A &amp; Section B. The water depth at the proposed laydown KP is approximately 11 In case of laydown at deeper water depth, the buoyancy tanks may be required for Mid Point Tie-In (Refer to Document No. SR-TKM-ENG-MCRA-OGT-P208, 26\u2019\u2019 Inch MCR-A\/OGT Mid-Point Tie-In Procedure).<\/span><\/li>\n<li><span style=\"color: #000000;\">Weld the laydown head to the last joint of the pipeline and complete all X-ray of the remaining field joints at their respective station.<\/span><\/li>\n<li><span style=\"color: #000000;\">Recover the followings from inside of the pipeline:<\/span><br \/>\n<span style=\"color: #000000;\"> i) Internal Clamp<\/span><br \/>\n<span style=\"color: #000000;\"> ii) X-Ray Crawler<\/span><br \/>\n<span style=\"color: #000000;\"> iii) Stop Trolley<\/span><br \/>\n<span style=\"color: #000000;\"> iv) Buckle Detector<\/span><\/li>\n<li><span style=\"color: #000000;\">Paint (white) the laydown head and weld the laydown head to the last joint of the pipeline. The laydown head is illustrated in Fig. 5.3-5 &amp; Fig. 5.3-6 for Section A &amp; Section B.<\/span><\/li>\n<li><span style=\"color: #000000;\">Install the rigging for the multiple davits lift. These choker slings arrangement are for the future multiple davits lift during for the Mid-Point tie-in. Refer to Fig. 5.3-7 &amp; Fig. 5.3-8 for the choker slings arrangement for Section A &amp; Section B.<\/span><\/li>\n<li><span style=\"color: #000000;\">Connect the end of the A&amp;R cable to the laydown head via a sacrificial sling with one (1) no. of 150 MT shackles. The sacrificial sling will be painted white for easy identification by ROV to cut the cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Install the remaining rigging for the multiple davit lift on their respective location as per Fig. 5.3-7 &amp; Fig. 5.3-8 for Section A &amp; Section B.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pull the barge until the laydown head just entering the forward tensioner. Gradually transfer the tension to the 3\u201d dia. A&amp;R cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue pull the barge ahead until the laydown head is at the aft tensioner. Gradually transfer all the tension to the 3\u201d dia. A&amp;R cable. At this stage both tensioner shoes are free from pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue advancing the barge forward until the laydown head is at the stern of the barge.<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy ROV to monitor the laydown head. The pipelay tension is maintained at as per Section 5.6. ROV may be used as an additional aid in providing visual of the laydown head.<\/span><\/li>\n<li><span style=\"color: #000000;\">De-ballast the stinger to meet the required back-end roller elevation as per data from Field Data Book while laying down.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue advancing the barge until the laydown head past the stinger stern. This is indicated when the first mark is at the stern of the barge. ROV will provide the visual on the laydown head.<\/span><\/li>\n<li><span style=\"color: #000000;\">Gradually reduced the tension on the 3\u201d dia. A&amp;R cable and let the laydown head settle on the seabed.<\/span><\/li>\n<li><span style=\"color: #000000;\">Back up the barge for about 20m to provide slack on the A&amp;R cable. The actual distance will be determined at site.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV to take fix on the laydown head and next of minimum 5 nos. field joints for the future Mid-Point tie-in at KP 66.0.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV will locate the sacrificial sling and cut the sling using hydraulic cutting arm (The ROV hydraulic cutting arm to be functioned tested prior ROV mobilization and deployment). Another alternative is to use shallow team saturation diver or air diver to disconnect the sling or cut by brocco rod.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>ABANDONMENT PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The abandonment procedure shall be executed under circumstances such as bad weather or pipe buckle. The steps for abandonment procedure are the same as laydown procedure. However there are a few exceptions as listed below:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">The choker sling will not be installed on the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">USBL beacon will not be installed on the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Emergency laydown head with pre-installed market buoy will be used. Refer to Fig. 5.4-1 for details of the emergency laydown head.<\/span><\/li>\n<li><span style=\"color: #000000;\">The sacrificial sling connected from A&amp;R cable end (A&amp;R sheave at Station No. 2) to the emergency laydown head may not be cut. The barge will back up to provide slack on the cable. However this will be determined based on site condition.<\/span><\/li>\n<li><span style=\"color: #000000;\">If the need arises to cut the sacrificial sling, the marker buoy will be used as a marking for the emergency laydown head.<\/span><br \/>\n<span style=\"color: #000000;\"> <strong><u>Note:\u00a0<\/u><\/strong>In the event of abandonment, the pipeline has to be completely laid down to the seabed and not to be suspended midway.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>RECOVERY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following steps will be carried out if it is necessary to recover a pipeline and recommence pipelay. The recovery is essentially the reverse of the abandonment procedure:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">The barge will be positioned so that the stern of the barge is at laydown head location.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pay out the A&amp;R cable (complete with spelter socket) towards stern (A&amp;R sheave at Station No. 2) and lower it down to seabed.<\/span><\/li>\n<li><span style=\"color: #000000;\">Position the A&amp;R cable to the stinger with the assistance of snatch block and\/or air tuggers and continue lower it down to seabed. ROV to monitor this exercise.<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy diver to connect the A&amp;R cable to laydown head on the seabed.<\/span><\/li>\n<li><span style=\"color: #000000;\">Ballast the stinger as required with reference to extracts from engineering analysis Document No. SR-TKM-OPR- MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT.<\/span><\/li>\n<li><span style=\"color: #000000;\">Back up the barge and gradually increase the pipelay tension as per Section 5.6.<\/span><\/li>\n<li><span style=\"color: #000000;\">Maintain the pipelay tension and the stinger back-end roller elevation as per Section 5.6.<\/span><\/li>\n<li><span style=\"color: #000000;\">Activate the aft tensioner when the laydown head just passed the aft tensioner. Maintain the tension as per Section 5.6. Do not reduce the tension in the A&amp;R cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue backing up the barge until the laydown head passed the forward tensioner. Activate the tensioner. Gradually reduced the tension on the A&amp;R cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Dismantle all the rigging on the laydown head. Cut the laydown head and perform necessary NDT inspection.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV will be deployed during the operation to provide visual display pipeline profile. Refer to Fig 5.4-2 for details on the recovery operation.<\/span><br \/>\n<span style=\"color: #000000;\"> <strong>Note: <\/strong>ROV will be deployed during the operation to provide visual display pipeline profile. Refer to Fig. 5.4-2 for details on the recovery operation.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>CONTINGENCY PROCEDURE \u2013 PIPELINE BUCKLE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">During pipelaying, abandonment or recovery of a pipeline, it is possible that the pipeline could buckle if there is a loss of tension in the pipeline or incorrect pipeline profile control.<\/span><\/p>\n<p><span style=\"color: #000000;\">The following contingency procedures detail the steps to be adhered to for:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Minor Dry Buckle<\/span><\/li>\n<li><span style=\"color: #000000;\">Severe Dry Buckle<\/span><\/li>\n<li><span style=\"color: #000000;\">Wet Buckle<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>EQUIPMENT LIST AND PREPARATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">In addition to the equipment\/materials for abandonment and recovery as detailed in Section 5, the following Table 6.2-1 will also need to be available in case a buckle occurs.<\/span><\/p>\n<table style=\"height: 208px;\" width=\"695\">\n<tbody>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">ITEM<\/span><\/td>\n<td style=\"text-align: center;\" width=\"378\"><span style=\"color: #000000;\">DESCRIPTION<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">QUANTITY<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"378\"><span style=\"color: #000000;\">Stopper pin (1-1\/4\u201d dia. X 650mm lg.) to stop\/trap when dewatering line to suit 26\u201d OD pipeline.<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">2 nos.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"378\"><span style=\"color: #000000;\">Underwater cutting and equipment<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"378\"><span style=\"color: #000000;\">Compressor (650cfm\/115-190 psig)<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">1 no.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">4<\/span><\/td>\n<td width=\"378\"><span style=\"color: #000000;\">Air hose (4\u201d dia.) for 65m working depth c\/w flange end<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">5<\/span><\/td>\n<td width=\"378\"><span style=\"color: #000000;\">4\u2019\u2019 hex nipple<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">1 no.<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"60\"><span style=\"color: #000000;\">6<\/span><\/td>\n<td width=\"378\"><span style=\"color: #000000;\">Marker buoy c\/w pennant wire<\/span><\/td>\n<td style=\"text-align: center;\" width=\"108\"><span style=\"color: #000000;\">1 no.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>MINOR DRY BUCKLE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">In the event a pipeline buckle is suspected, the following steps will be taken:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Cease all barge movement and pipelay.<\/span><\/li>\n<li><span style=\"color: #000000;\">Notify Superintendent, Field Engineers and COMPANY Representative immediately.<\/span><\/li>\n<li><span style=\"color: #000000;\">Observe the open end of the pipeline for any exhaust of air. Pipeline profile will be observed to note any profile change from normal profile.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV inspects to confirm whether the buckle is dry or wet, minor or severe. ROV should survey pipeline from stinger to buckle detector location to ensure no other buckles have occurred.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">A decision will be taken if the buckled section as surveyed can pass through the tension machine and support the recovery tension without causing further damage to the pipeline. If pipeline is able to pass through the tension machine proceed with Step 5. If not, the buckle is classified as major and further steps should be taken as outlined in Section 6.1.4.<\/span><\/p>\n<ol start=\"5\">\n<li><span style=\"color: #000000;\">Meanwhile, remove internal line-up clamp and x-ray crawler from inside the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Under the direction of the Superintendent, commence moving the barge astern along the pipeline route while maintaining constant tension in the tension machine.<\/span><\/li>\n<li><span style=\"color: #000000;\">Cease barge movement when a welded joint is at the line-up station.<\/span><\/li>\n<li><span style=\"color: #000000;\">Cut out the weld and remove the pipe joint.<\/span><\/li>\n<li><span style=\"color: #000000;\">Resume backing the barge astern until the next welded joint is at the line-up station. Remove the pipe joint as before.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue backing the barge astern and remove pipe joints until the buckled joint(s) is at the stern tension machine.<\/span><\/li>\n<li><span style=\"color: #000000;\">Inspect the buckled section thoroughly to ascertain feasibility of proceeding through the tension machine.<\/span><\/li>\n<li><span style=\"color: #000000;\">If it is assessed that no further damage to the pipeline will occur by passing the buckled portion of the line through the tension machine tracks, the barge will continue to back up until the buckled section of pipe is at the line-up station. Then proceed as per Step 18.<\/span><\/li>\n<li><span style=\"color: #000000;\">Cease all cutting of line pipe. If the buckled portion cannot safely pass through the tension machine.<\/span><\/li>\n<li><span style=\"color: #000000;\">Weld the laydown head to the end of the pipeline and attach the laydown cable. Apply tension to the cable until it is equivalent to the tension in the tension machine. Concurrently, lower the load on the tensioner in order not to exceed the current and recovery tension being applied.<\/span><\/li>\n<li><span style=\"color: #000000;\">Raise tension machines jaws and recover the pipe using the recovery procedure detailed previously.<\/span><\/li>\n<li><span style=\"color: #000000;\">Cease barge movement when the buckled portion is at the line-up station.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lower tension machine jaws onto the pipe and set the machine at the required lay tension. Disconnect the laydown cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Remove the buckled section. Meanwhile, re-bevel the end of the pipeline and perform NDT.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-deploy the x-ray stop trolley, the x-ray crawler and the internal line-up clamp inside the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Recommence normal pipelaying operations only after determining the reason for the buckle and taking corrective steps.<\/span><br \/>\n<span style=\"color: #000000;\"> Note : If the buckle occurred at the weldment, then a ring shall be cut to preserve the weld for further inspection and underwriter review<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>SEVERE DRY BUCKLE<\/strong><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">If the buckle is still dry but severe, weld the lay down pull head to the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Shackle the laydown cable to the laydown head with 1 each 150 MT shackle and perform abandonment procedure as outlined in Section 5.4.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-position the barge alongside the pipeline for a standard davit lifts. However, site assessment to be made between COMPAY Representative, Superintendent and Field Engineers whether a single lift or multiple davits lifts to be exercised.<\/span><\/li>\n<li><span style=\"color: #000000;\">Attach davit lines to the pipeline and perform a multiple davit lift as detailed in Engineering Analysis, Document No. SR-TKM-OPR- MCRA-OGT-P201, Pipelay and Weld Repair Analysis \u2013 26\u2019\u2019 Gas Pipeline from MCR-A to OGT.<\/span><\/li>\n<li><span style=\"color: #000000;\">Maintaining the pipeline profile, remove successive pipe joints to the buckled joint.<\/span><\/li>\n<li><span style=\"color: #000000;\">Remove the buckled joint and weld the laydown head to the pipeline. Tie one end of a length of 1\u201d dia. rope to the laydown head and the other end to a marker buoy. Lower line to seabed and disconnect all rigging.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-position the barge for recovery of the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pay out the recovery line with 1 each 150 MT shackle.<\/span><\/li>\n<li><span style=\"color: #000000;\">Shackle the recovery line to the laydown head, remove the marker line and perform recovery process as detailed in Section 5.5.<\/span><\/li>\n<li><span style=\"color: #000000;\">Once the laydown head reaches the beadstall, it will be removed and the pipeline re-bevelled.<\/span><\/li>\n<li><span style=\"color: #000000;\">Resume pipe laying operation.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Note: If the severe dry buckle occurs, a significant distance from the barge such that a multiple davit lift is not possible (i.e. buckle in the sag bend region), then the pipeline will be flooded and the wet buckle procedure (Case B) followed.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>WET BUCKLE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This refers to a pipeline buckle where the pipeline has been flooded with seawater. The wet buckle repair procedure is outlined as follows:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Cease all barge movement and pipelay operation.<\/span><\/li>\n<li><span style=\"color: #000000;\">Superintendent, Field Engineers and CONTRACTOR Representatives notified immediately.<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy divers\/ROV to inspect pipeline from end of stinger to touch down point on seabed.<\/span><\/li>\n<li><span style=\"color: #000000;\">Determine location and type of buckle, namely:<\/span><br \/>\n<span style=\"color: #000000;\"> Case A &#8211; Pipeline buckled but not broken off<\/span><br \/>\n<span style=\"color: #000000;\"> Case B &#8211; Pipeline buckled, broken off and lying on seabed<\/span><\/li>\n<li><span style=\"color: #000000;\">Remove internal line-up clamp and x-ray crawler from inside the pipeline, (and x-ray stop trolley, if possible).<\/span><\/li>\n<li><span style=\"color: #000000;\">Under the direction of the Superintendent, commence moving the barge astern whilst simultaneously retrieving as many joints as possible up through the stern ramp. Cut out the joints and remove from the tunnel.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><u>Case A<\/u><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Retrieve pipe until in the opinion of the Superintendent, it is not safe to bring the buckle up the stinger.<\/span><\/li>\n<li><span style=\"color: #000000;\">Fit and weld the emergency laydown head onto the end of the pipeline. Meanwhile, shackle the lay down cable to the lay down head.<\/span><\/li>\n<li><span style=\"color: #000000;\">Upon completion of welding, abandon the pipeline using the Abandonment Procedure detailed in Section 5.<\/span><\/li>\n<li><span style=\"color: #000000;\">Proceed to step b) of Case B.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><u>Case B <\/u><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Retrieve all pipes in the stinger.<\/span><\/li>\n<li><span style=\"color: #000000;\">Reposition lay barge for a multiply davit lift of pipeline. Refer to Field Data Book (FDB).<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy the diver with cutting equipment to cut out all the buckled section.<\/span><\/li>\n<li><span style=\"color: #000000;\">Diver will attach rigging around the pipeline as per the wet multiple davit lift procedure detailed in the FDB and secure to the side of barge.<\/span><\/li>\n<li><span style=\"color: #000000;\">Recover the pipeline using the wet multiple davit lift procedure as detailed in FDB.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-cut and re-bevel the end of the pipeline on surface.<\/span><\/li>\n<li><span style=\"color: #000000;\">Weld laydown head complete with dewatering pig inside to the pipeline and attach a marker buoy using of 1\u201d dia. rope.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lower pipeline to the seabed using the reverse of the wet multiple davit lift procedure and disconnect lowering cables.<\/span><\/li>\n<li><span style=\"color: #000000;\">Diver to connect air hose to the laydown head and commence dewatering the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Disconnect the air hose and close valve inlet.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pay out the recovery line with 1ea x 150 MT shackles at the end.<\/span><\/li>\n<li><span style=\"color: #000000;\">Diver to shackle recovery line to the laydown head and detach marker buoy pennant line. Position recovery line in the stinger.<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform recovery of pipeline as per Section 5.<\/span><\/li>\n<li><span style=\"color: #000000;\">Removed laydown head once reaches bead stall and re-beveled pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Resume pipelaying operation, only after determining the reason for the buckle and taking corrective steps.<\/span><\/li>\n<\/ol>\n<h3><span style=\"color: #000000;\">12&#8243; CONDENSATE \u00a0PIPELINE MCR-A TO OGT and\u00a0<strong>4&#8243; MEG PIPELINE PIGGY BACK<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\"><strong>DESCRIPTION OF PIPELINES<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The proposed 12&#8243; 0 condensate and 4&#8243;0 MEG pipelines will be laid as follows:<\/span><\/p>\n<p><span style=\"color: #000000;\">73km x 12&#8243;0\u00a0 condensate with 4&#8243;0 piggy-back pipeline from OGT to MCR-A platform. Approximate number of joints to be laid is, 5984 joints for 12&#8243; pipeline and 5,984 joint for 4&#8243; pipeline. This is based on 12.2m average length.<\/span><\/p>\n<p><span style=\"color: #000000;\">Table 1.2-1A &amp; Bon the following page give a summary of the pipelines sequence and Table 1.2-2A &amp; B shows the detail sequence.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SCOPE <em>I <\/em>SEQUENCE OF WORK<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Pipelines installation involves a 73.103km x \u00a012&#8243;0 condensate with 73.113km x 4&#8243;0 piggy-back pipelines. SUBCONTRACTOR scope and work sequences are as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Transport linepipes and other appurtenances (under separate procedure).<\/span><\/li>\n<li><span style=\"color: #000000;\">Start-up with beach pull method to proposed OGT shore. Refer to Doc. No. SR-TKM-OPR-GEN-08, General Procedure for Shore Approach and Beach Pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Total joint of linepipes to be installed for each pipeline approximately 5984 joints.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lay pipelines approximately 368 joints for 12&#8243; pipeline from KP 72.987 to KP 68.500 while for\u00a0\u00a0\u00a0 <em>1\\<\/em> 4&#8243; pipeline approximately 361 joints from KP 72.995 for 4&#8243; until KP 68.500. Laydown head for 4&#8243; pipeline will be installed at 7 joints earlier than 12&#8243; pipeline, due to recovery purpose.<\/span><\/li>\n<li><span style=\"color: #000000;\">12&#8243; + 4&#8243; pipeline will be recovered and continue laying and laydown at MCR-A after 26&#8243; \u00a0<em>1\\\u00a0<\/em>pipeline beach pull completed till KP 69.000.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lay down pipelines in designated target \u00a05.0 m (lateral) x 5.0 m (longitudinal) at proposed location (KP 0.00).<\/span><br \/>\n<span style=\"color: #000000;\"> Note: Separation between 12&#8243; + 4&#8243; Piggy-Back and Pipeline 26&#8243; is 5.0m starting at KP 64.0 while separation\u00a0\u00a0 between 12&#8243; (Out-Going to SPM) also 5.0m start at KP 70.0 till to shore approach.<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform post-lay survey on \u00a0the \u00a0newly \u00a0laid \u00a012&#8243; \u00a0dia. \u00a0with \u00a0piggy \u00a0backed \u00a04&#8243;0 \u00a0pipelines, determine free span locations and rectify. (Refer to Doc. No. SR-TKM-OPR-GEN-03,\u00a0 Post\u00ad Installation Survey Procedure for Proposed Pipelines and SPM\/PLEM.)<\/span><\/li>\n<li><span style=\"color: #000000;\">Free span rectification works shall be performed using grout bags before flooding the pipeline prior to straight spool installation.<\/span><\/li>\n<li><span style=\"color: #000000;\">Flooding the pipelines prior to straight spools installation (under separate procedure).<\/span><\/li>\n<li><span style=\"color: #000000;\">Install straight spool installation at MCR-A \u00a0(upon completion of MCR-A installation by others). (Refer to Doc. No. SR-TKM-OPR-GEN-07, Subsea Spool Installation Procedure.)<\/span><\/li>\n<li><span style=\"color: #000000;\">Installation \u00a0of\u00a0 \u00a0Flexmat \u00a0Anchors.\u00a0 \u00a0(Refer\u00a0\u00a0 to\u00a0 \u00a0Doc.\u00a0 \u00a0No. \u00a0SR-TKM\u00b7OPR-GEN-09,\u00a0 \u00a0Grout\u00a0 \u00a0Bags Installation and Span Correction General \u00a0Procedure.)<\/span><\/li>\n<li><span style=\"color: #000000;\">Installation of Grout Bag and Concrete mattress &#8211; platform approach. (Refer to Doc. No. SR\u00ad TKM-OPR-GEN-09, Grout Bags Installation and Span Correction General Procedure.)<\/span><\/li>\n<li><span style=\"color: #000000;\">Perform pre-commissioning works on the newly 12&#8243; dia. and 4&#8243; dia. Pipelines (under separate procedure).<\/span><\/li>\n<li><span style=\"color: #000000;\">Provision of as-built documentation.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The final sequence of pipelay may be revised as required to suit the agreed offshore installation schedule with COMPANY.<\/span><\/p>\n<p><span style=\"color: #000000;\">Note: All KP&#8217;s provided herein this document are approximate. For latest KP&#8217;s and coordinates, please refer to the latest AFC drawings. Do not base solely on the data provided in this procedure<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INSTALLATION SUMMARY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Proposed Start Point Coordinate 12&#8243; P\/L at OGT\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 E \u00a0650702.63 N 4449721.71<\/span><\/p>\n<p><span style=\"color: #000000;\">Proposed End Point Coordinate 12&#8243; P\/L at MCR-A \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 E \u00a0603528.74 N 4397182.56<\/span><\/p>\n<p><span style=\"color: #000000;\">Proposed Start Point Coordinate 4&#8243; P\/L at OGT\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 E 650707.43 N 4449721.27<\/span><\/p>\n<p><span style=\"color: #000000;\">Proposed End Point Coordinate 4&#8243; P\/L at MCR-A \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 E 603518.88 N 4397172.17<\/span><\/p>\n<p><span style=\"color: #000000;\">Tie-In Spools at MCR-A \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 60.2m \u00a0water \u00a0depth<\/span><\/p>\n<p><span style=\"color: #000000;\">Tension During Pipelay \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0Start-up Tension 245 kN. Normal Tension 845 kN (max).<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 varies (water depth 1O.Om to 62.0m)<\/span><\/p>\n<p><span style=\"color: #000000;\">Note: All coordinate are in meter unless otherwise noted.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>LOADOUT AND TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The linepipes will be transferred to Turkmenistan \u00a0Block-1 \u00a0Gas \u00a0Development \u00a0Field \u00a0using \u00a0200ft class and 270ft class barge.<\/span><\/p>\n<p><span style=\"color: #000000;\">Upon completion of each load out, the tie down and sea fastening will be carried out to the satisfaction of COMPANY and the appointed third party surveyors.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Document No. : SR-TKM-ENG-MCRA-OGT-P100, Line pipe Transportation Study &#8211; 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PRE-LOADOUT<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to loadout from the storage yard, inspection list included in Document No. : SR-TKM-ENG\u00ad MCRA-OGT-P106- Loadout Coordination Manual for 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked, will be reviewed and completed. Any areas of potential concern will be highlighted to COMPANY. The load-out is also detailed in the above document.<\/span><\/p>\n<p><span style=\"color: #000000;\">Particular attention will be given to:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">End condition of line pipe.<\/span><\/li>\n<li><span style=\"color: #000000;\">Condition of line-pipe coating.<\/span><\/li>\n<li><span style=\"color: #000000;\">Line-pipe magnetic properties.<\/span><\/li>\n<li><span style=\"color: #000000;\">Concrete and anti-corrosion coat cutback.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>LOADOUT AND TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Loadout list for the line-pipes barge for 12&#8243; dia. condensate pipeline MCR-A to OGT is shown in the Document No. : &#8220;SR-TKM-ENG-MCRA-OGT-P106 &#8211; Loadout Coordination Manual for 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked.&#8221;. General arrangement and sea fastening details for load out of the pipeline and miscellaneous items are also included in the above report.<\/span><\/p>\n<p><span style=\"color: #000000;\">A detailed review of all components and material loadout will be conducted and checked against the loadout list as described in the Load out Coordination Manual. \u00a0Any \u00a0discrepancies \u00a0in \u00a0the quantity and conditions of the pipelines will be highlighted to COMPANY representative \u00a0and recorded prior to transfer of custody of the transportation barge to SUBCONTRACTOR. A load-out and tie-down arrangements of linepipe bays on the transportation barge are shown in Fig. 2.3-01 and Fig. 2.3-02 respectively. The tie-down \u00a0and \u00a0load-out \u00a0arrangements \u00a0for \u00a0the \u00a0subsequent voyages are detailed further in Document No. &#8220;SR\u00b7TKM-ENG-MCRA-OGT-P106 &#8211; \u00a0Loadout Coordination Manual for 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked&#8221;.<\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to departure of each transportation barge from the respective loadout location, a three (3) day weather outlook will be obtained from the Meteorological Service and forwarded to the tug boat captain (master) for his further action. Shelter and safe tow route shall also be identified and briefed to the tug master by Marine Captain.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>START-UP PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The 12&#8243; Dia. Condensate with 4&#8243; MEG Piggyback will be started-up utilizing the conventional beach pull method at the OGT shore, with the laybarge\u00a0 position approximately\u00a0 400m from landfall point (approx. at KP 72.551 ).<\/span><\/p>\n<p><span style=\"color: #000000;\">The beach pull operation for 12&#8243; Dia. Condensate with 4&#8243; MEG Piggyback are covered in detail under Doc. No. SR-TKM-OPR-GEN-08 &#8220;General Procedure for Shore Approach and Beach Pull&#8221;. Barge will start normal pipe-lay mode approximately after joint no. 33.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BARGE SET-UP AND ANCHOR PATTERN<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The proposed barge approach for set-up anchor patterns for linepipe start-up and pipelay for 12&#8243; Dia. Pipeline is shown in Fig. 3.2-1.<\/span><\/p>\n<p><span style=\"color: #000000;\">Note: This \u00a0is for \u00a0information\u00a0 only \u00a0as \u00a0actual details \u00a0will \u00a0be obtained \u00a0from \u00a0General \u00a0Procedure for Shore Approach and Beach Pull, Doc. No.SR- TKM-OPR-GEN-08.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PREPARATION AND \u00a0EQUIPMENT LIST<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">After the barge stern has been relocated at 400m\u00a0 approx. from landfall tie-in point and the position confirmed by surveyors, the following preparatory works for the beach pull and pipelay operation will be completed.<\/span><\/p>\n<p><span style=\"color: #000000;\">This section covers the preparation required primarily for linepipe start-up:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Carry out preparation as detailed in Section 2.1.<\/span><\/li>\n<li><span style=\"color: #000000;\">Fabricate and prepare start-up head for 12&#8243; 0 Pipeline and 4&#8243;. Refer to Fig. 3.3-1 and Fig. 3.3-2 for 12&#8243; and 4&#8243; start-up head respectively.<\/span><\/li>\n<li><span style=\"color: #000000;\">Check pipe tunnel, equipment and facilities at all stations, operational and in safe<\/span><\/li>\n<li><span style=\"color: #000000;\">Check pipe rack and line-up station equipment including buckle detector, load cell\/gauge, X\u00ad ray crawler, stop trolley, internal line-up clamp and beveling<\/span><\/li>\n<li><span style=\"color: #000000;\">Inspect tension machine, set its dead bands and set appropriate tension<\/span><\/li>\n<li><span style=\"color: #000000;\">Set roller heights as per Engineering<\/span><\/li>\n<li><span style=\"color: #000000;\">Inspect stinger, \u00a0set \u00a0the \u00a0required \u00a0roller \u00a0height, \u00a0stinger \u00a0blown with \u00a0dry \u00a0air \u00a0and \u00a0check \u00a0the ballasting<\/span><\/li>\n<li><span style=\"color: #000000;\">Check and prepare the start-up equipment, installation aids and materials as detailed in the table<\/span><\/li>\n<\/ol>\n<ul>\n<li><span style=\"color: #000000;\">12&#8243; Pulling head 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">4&#8243; Pulling head 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">85 MT Shackles 3 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Bi-Di batching pig (Wet buckle contingency pig) 1 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Buoyancy Foam Block (Beach pull operation) 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Strip-out cable (Buoyancy Foam Block banding material) 1 lot<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><u>PIPE HANDLING<\/u><\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"47\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"438\"><span style=\"color: #000000;\">Pipe handling spreader bar<\/span><\/td>\n<td width=\"110\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"47\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"438\"><span style=\"color: #000000;\">Pipe handling slings to suit 12&#8243; dia. pipe spreader<\/span><\/td>\n<td width=\"110\"><span style=\"color: #000000;\">1 lot<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\">PIPELAY<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Internal line-up clamp 1 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">External line-up clamp 1 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Stop trolley 1 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Holiday detector 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">5\/8&#8243; IWRC 6&#215;19 Galvanized Extra Improved wire rope for stop 2,000 ft\u00a0trolley<\/span><\/li>\n<li><span style=\"color: #000000;\">Copper tubing 7\/8&#8243; ID x 25mm WT (10ft per length) 14 length<\/span><\/li>\n<li><span style=\"color: #000000;\">Polyken #980-SSJ\u00b7X (450mm) 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Polyken #980-SSJ-X (150mm) 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Heat Shrink Sleeve 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Propane Heating system 1 set<\/span><\/li>\n<li><span style=\"color: #000000;\">Pigy Back Block 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Strap for piggy back block 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Strap for field joint coating 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Strapping machines 2 set<\/span><\/li>\n<li><span style=\"color: #000000;\">Anodes for 4&#8243; pipeline 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Anodes auxiliaries component<\/span><\/li>\n<li><span style=\"color: #000000;\">Anode Welding system<\/span><\/li>\n<li><span style=\"color: #000000;\">Anode lnfill material<\/span><\/li>\n<li><span style=\"color: #000000;\">White paint (7 liter\/can) 10 cans<\/span><\/li>\n<li><span style=\"color: #000000;\">White Emulsion paint <em>I <\/em>oil base paint (?liter\/can) 5 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Welding consumables 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Beveling machines and assembly 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Foam infill 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">NDT equipment and consumables 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV spread 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Survey spread 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Diving spread 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">General equipment and consumables related to pipelay activities 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">A&amp;R winch c\/w cable\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1 lot<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>PIPELAYING PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INTRODUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following section describes the method of the pipeline installation. SUBCONTRACTOR \u00a0will lay the pipeline partially \u00a0from approximately KP 73.000 till \u00a0KP 68.500. After 26&#8243; pipeline beach pull operation completed at KP 69.000, DLB Armada will return to KP 68.500 to recover 12&#8243; + 4&#8243; pipelines and continue pipelay from KP 68.500 to KP 0.00 in accordance to the conventional lay barge method of welding\u00a0 pipe joints on the barge and pulling the barge along the pipeline route after welding is completed at each welding station.<\/span><\/p>\n<p><span style=\"color: #000000;\">Automatic welding will primarily be utilized for 12&#8243; 0 pipelay. Refer to Document No. SR-TKM\u00b7WLD\u00ad GEN\u00b702, Welding Procedure Specification for the various WPS qualified for the installation.<\/span><\/p>\n<p><span style=\"color: #000000;\">Manual welding will be used for the 4&#8243; 0 pipelay piggy-back pipeline. Refer to Doc. no. SR\u00b7TKM-WLD\u00ad GEN-01, Welding Procedure Specification.<\/span><\/p>\n<p><span style=\"color: #000000;\">Installation Summary<\/span><\/p>\n<p><span style=\"color: #000000;\">Max. Water Depth\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 60.2m (KP 0.0 at MCR-A platform) Maximum<\/span><\/p>\n<p><span style=\"color: #000000;\">Pipelay Tension \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 1000.85 kN (225 kips)<\/span><\/p>\n<p><span style=\"color: #000000;\">Minimum Pipelay Tension \u00a0 \u00a0 \u00a0 200.17 kN ( 45 kips)<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to seabed\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0varies (water depth 10.0m to 62.0m)<\/span><\/p>\n<p><span style=\"color: #000000;\">The following parameters will constantly be controlled and recorded during pipelay:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Elevation of stinger stern-most roller by air diver and onboard<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipe-lay tension<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipeline profile between stinger end to touchdown as observed by<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipeline touchdown location as observed by<\/span><\/li>\n<li><span style=\"color: #000000;\">Gap between stinger back-end roller to pipeline<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>EQUIPMENT LIST AND \u00a0PREPARATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to commencement \u00a0of pipelay, all preparatory work for the installation will be completed. Equipment required will also be checked and verified for their operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>MATERIAL AND EQUIPMENT LIST FOR PIPELAYING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following\u00a0 materials and equipments are required for general pipelay of \u00a012&#8243; dia. with 4&#8243; dia. Piggy-back pipeline.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELAYING \u00a0EQUIPMENTS AND FIELD JOINT MATERIALS<\/strong><\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">12&#8243; Internal line-up clamp 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">4&#8243; External line-up clamp 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">5\/8&#8243; IWRC 6 x 19 Galvanized Extra Improved 1,250 ft\u00a0wire rope for stop trolley and buckle detector<\/span><\/li>\n<li><span style=\"color: #000000;\">7<em>18&#8243; <\/em>ID x 50ft length Of copper tubing 10 ea.<\/span><\/li>\n<li><span style=\"color: #000000;\">Foam infill As required<\/span><\/li>\n<li><span style=\"color: #000000;\">lnfill material Pump 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Galvanize Sheet (electrode galvanize type) \u00a0As \u00a0required<\/span><\/li>\n<li><span style=\"color: #000000;\">Polyken #980-SSJ-X (450mm) As required<\/span><\/li>\n<li><span style=\"color: #000000;\">Polyken #980-SSJ-X (150mm) As\u00a0 required<\/span><\/li>\n<li><span style=\"color: #000000;\">Heat Shrink Sleeve As \u00a0required<\/span><\/li>\n<li><span style=\"color: #000000;\">Holiday Detector (capable of measuring \u00a0up 15kV) \u00a02 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">White paint (16 liters\/can) 90 cans<\/span><\/li>\n<li><span style=\"color: #000000;\">Buckle detector and blow-down head for 12&#8243; pipe 1 ea<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">WELDING AND QC EQUIPMENT<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Welding machines for 12&#8243; pipe 4 sets<\/span><\/li>\n<li><span style=\"color: #000000;\">Welding consumables for 12&#8243; pipe 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Welding machines for 4&#8243; pipe 3 sets<\/span><\/li>\n<li><span style=\"color: #000000;\">Welding consumables for 4&#8243; pipe 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">NDT related equipment and consumable \u00a0As required<\/span><\/li>\n<li><span style=\"color: #000000;\">Welding machines<\/span><\/li>\n<li><span style=\"color: #000000;\">Welding consumables<\/span><\/li>\n<li><span style=\"color: #000000;\">NDT related equipment \u00a0and consumable<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">PIPE HANDLING<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Pipe handling spreader bar 2 ea<\/span><\/li>\n<li><span style=\"color: #000000;\">Pipe handling slings 2 lots<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">SURVEY <em>I <\/em>DIVING <em>I <\/em>ROV<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">ROV spread 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Survey spread <em>clw <\/em>side scans, transponder etc 1 lot<\/span><\/li>\n<li><span style=\"color: #000000;\">Diving equipment 1 lot<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">GENERAL<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">General equipments and consumables related to 1 lot pipelay \u00a0activities<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>PREPARATION FOR PIPELAY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following preparation prior to pipe-lay start-up will be performed:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Adjust barge and stinger roller heights according to 12&#8243; + 4&#8243; dia, pipelay analysis.<\/span><\/li>\n<li><span style=\"color: #000000;\">Service and adjust tracks on pipe tensioning machines prior to start-up\/beach pull<\/span><\/li>\n<li><span style=\"color: #000000;\">Check pipe rack and line-up station equipment is operational including buckle detector, X-ray crawler, stop trolley, internal line-up<\/span><\/li>\n<li><span style=\"color: #000000;\">Check stinger valves, control panel, video, \u00a0underwater \u00a0cameras, \u00a0rollers and load cell are in working<\/span><\/li>\n<li><span style=\"color: #000000;\">Check \u00a0the \u00a0valve\u00a0 \u00a0at \u00a0start-up\u00a0 \u00a0head \u00a0is \u00a0closed \u00a0and\u00a0 \u00a0plugs \u00a0\u00a0 \u00a0Ensure \u00a0compatible\u00a0 \u00a0hose connections \u00a0are available \u00a0(if \u00a0required).<\/span><\/li>\n<li><span style=\"color: #000000;\">Ensure materials and equipments for the field joint \u00a0coating, anode and foam operations are readily<\/span><\/li>\n<li><span style=\"color: #000000;\">Check that the constant tension winch for laydown\/abandonment of pipeline is \u00a3<\/span><\/li>\n<li><span style=\"color: #000000;\">Ensure sufficient quantity of white marine paint is available for marking<\/span><\/li>\n<li><span style=\"color: #000000;\">Test all survey equipment \u00a0of both pipelay barge and Anchor \u00a0Handling Tug (AHT). Test and calibrate<\/span><\/li>\n<li><span style=\"color: #000000;\">Test all NDT equipment e. NDT crawler, automatic processor etc. Ensure sufficient supplies of radiographic films, chemical, screen etc are available.<\/span><\/li>\n<li><span style=\"color: #000000;\">Set-up current meter at bow of pipelay to monitor change in current speed and direction during<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>DETAILED PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following subsections detail the procedures relevant to the pipelay operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BARGE RAMP STINGER DETAILS<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Barge\/Stinger \u00a0Roller Height and Spacing<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The \u00a012&#8243; dia. \u00a0pipelay will be carried out by a derrick \u00a0lay barge with the barge and stinger \u00a0roller heights set in accordance to Fig.4.3.1-1 and Fig. 4.3.1-2.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Barge \/<\/u><em><u>\u00a0<\/u><\/em><u>Stinger Details<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The installation engineering has assumed the following barge attitude for pipelay activities:<\/span><\/p>\n<p><span style=\"color: #000000;\">Fwd Draft Aft Draft<\/span><\/p>\n<p><span style=\"color: #000000;\">Trim by Stern Stinger<\/span><\/p>\n<p><span style=\"color: #000000;\">4.1 m (bow)<\/span><\/p>\n<p><span style=\"color: #000000;\">4.1 m (stern)<\/span><\/p>\n<p><span style=\"color: #000000;\">0 degree<\/span><\/p>\n<p><span style=\"color: #000000;\">50.5m Floating Stinger<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Stinger Operation<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The stinger ballasting operations will be controlled from the control panel located at the stern of the barge. The pipe will be monitored visually by the stinger technician\/diving crew using a subsea camera mounted at the last stern rollers of the stinger. A closed-circuit TV will be made available in the diver shack and connected to the subsea camera. The elevation of the rollers shall be logged every 30 minutes of the pipe pull.<\/span><\/p>\n<p><span style=\"color: #000000;\">SUBCONTRACTOR shall monitor the installation of pipelines with an ROY and\/or diver. During laying operation, pipeline profile monitoring by diver and ROY shall be conducted at a minimum frequency of three (3) times per shift.<\/span><\/p>\n<p><span style=\"color: #000000;\">During Critical lay in each curve, ROV must be in function to monitor pipeline location ensuring in\u00a0<em>+\/- <\/em>15m tolerance. Pipelay route calculation will be provided by Party Chief for review.<\/span><\/p>\n<p><span style=\"color: #000000;\">The stinger-rollers elevation\u00a0 will be constantly monitored especially when the water depth changes. The depth gauge shall be installed at the end of the stinger to monitor \u00a0the \u00a0stinger \u00a0end \u00a0depth. Designed elevations for various water depths along the pipeline route shall follow those in Doc. No. SR-TKM-ENG-MCRA-OGT-P1 01, Pipelay and Weld Repair Analysis &#8211; 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked.<\/span><\/p>\n<p><span style=\"color: #000000;\">Note: Depth gauge at the end of the stinger to be installed to monitor stinger depth.<\/span><\/p>\n<p><span style=\"color: #000000;\">PIPELAY BARGE ARRANGEMENT<\/span><\/p>\n<p><span style=\"color: #000000;\">Table 4.3.2 \u00a0details \u00a0the \u00a0activities \u00a0that \u00a0will \u00a0be \u00a0performed \u00a0in \u00a0each \u00a0station \u00a0of \u00a0the \u00a0pipe \u00a0ramp \u00a0on \u00a0the barge during the 12&#8243; dia. pipelay. The pipe ramp is illustrated\u00a0 in Fig. 4.3.2\u00b71.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Table 4.3.2<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Pipe Ramp Activity Arrangement for 12&#8243; dia. &amp; 4&#8243; dia. pipes.<\/span><\/p>\n<p>&nbsp;<\/p>\n<table style=\"height: 1166px;\" width=\"800\">\n<tbody>\n<tr>\n<td rowspan=\"2\" width=\"86\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">STATION NO.<\/span><\/p>\n<p>&nbsp;<\/td>\n<td colspan=\"4\" width=\"576\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">ACTIVITY<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">12&#8243; Dia.<\/span><\/p>\n<\/td>\n<td colspan=\"3\" width=\"292\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\"><strong>4&#8243; Dia.<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"86\">&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Root <em>I <\/em>Hot Pass <em>I <\/em>Fill #1 &amp; #2 <em>I <\/em>Fill #3 &amp; #4 <em>I <\/em>Capping, Visual Touch-up <em>I <\/em>Radiographic Inspection<\/span><\/td>\n<td width=\"47\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td rowspan=\"2\" width=\"67\"><span style=\"color: #000000;\">Root <em>I <\/em>Hot Pass, Fill #1 Repair<\/span><\/p>\n<p><span style=\"color: #000000;\">\u00a0<\/span><\/p>\n<p><span style=\"color: #000000;\">Capping, Visual and Touch-up \/<em>\u00a0<\/em>Repair<\/span><\/p>\n<p>&nbsp;<\/td>\n<td width=\"178\">&nbsp;<\/p>\n<p>&nbsp;<\/td>\n<\/tr>\n<tr>\n<td width=\"86\">&nbsp;<\/p>\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Fill #1 &amp; #2 <em>I <\/em>Fill #3 &amp; #4 <em>I <\/em>Capping, Visual<\/span><\/p>\n<p><span style=\"color: #000000;\">&amp; Touch-up <em>I <\/em>Radiographic Inspection\u00a0\u00a0<\/span><\/td>\n<td width=\"47\">&nbsp;<\/p>\n<p>&nbsp;<\/td>\n<td width=\"178\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"86\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">3<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Fill #3 &amp; #4 <em>I <\/em>Capping, Visual &amp; Touch-up <em>I<\/em><\/span><\/p>\n<p><span style=\"color: #000000;\">Radiographic Inspection<\/span><\/td>\n<td colspan=\"3\" width=\"292\"><span style=\"color: #000000;\">Capping, Visual and Touch-up \/<em>\u00a0<\/em>Repair<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"86\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">4<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Capping, Visual and Touch-up<\/span><\/td>\n<td colspan=\"3\" width=\"292\"><span style=\"color: #000000;\">Capping, Visual and Touch-up \/<em>\u00a0<\/em>Repair<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"86\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">5<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Radiographic Inspection <em>I <\/em>Repair<\/span><\/td>\n<td colspan=\"3\" width=\"292\"><span style=\"color: #000000;\">Radiographic Inspection<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"86\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">6<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Radiographic Inspection <em>I <\/em>Repair<\/span><\/td>\n<td colspan=\"3\" width=\"292\"><span style=\"color: #000000;\">Radiographic Inspection <em>I <\/em>Repair<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"text-align: center;\" width=\"86\"><span style=\"color: #000000;\">7<\/span><\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Polyken 980-SSJ-X Application<\/span><\/td>\n<td colspan=\"3\" width=\"292\"><span style=\"color: #000000;\">Heat Shrink Sleeve Application<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"86\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">8<\/span><\/p>\n<\/td>\n<td width=\"284\"><span style=\"color: #000000;\">Field Joint Foam \u00a0lnfill<\/span><\/td>\n<td colspan=\"3\" width=\"292\"><span style=\"color: #000000;\">i.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Anode Installation<\/span><\/p>\n<p><span style=\"color: #000000;\">ii.\u00a0\u00a0\u00a0\u00a0 Piggy-Back \u00a0Block installation<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>BARGE AND ANCHOR SET-UP<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">For the pipeline start-up at OGT shore, the barge will be set up for shore approach for beach pull operation. The location of barge stern is approximate 400m from OGT shore.<\/span><\/p>\n<p><span style=\"color: #000000;\">During normal pipelay, four (4) bow anchors will be run at a maximum of approximately 1200m. The remaining cable length in the drum is approximately 600m. The minimum cable length paid out on the stern anchors is approximately 500m.<\/span><\/p>\n<p><span style=\"color: #000000;\">For further details of the anchor handling procedure and anchor cable catenaries, please refer to Document No. SR-TKM-MRN-GEN-06, Anchor Handling Procedure.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELAY VARIABLES<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The pipelay engineering analysis recommendation of the optimum pipelay tension is shown in the following page, extracted from Engineering Analysis Document No. SR-TKM-ENG- MCRA-OGT-P101, Pipelay and Weld Repair Analysis &#8211; 12&#8243;&#8216; Condensate Pipeline from MCR-A to OGT and 4&#8243;&#8216; MEG Pipeline Piggybacked. Optimum stinger roller heights \u00a0at \u00a0stern \u00a0for \u00a0the \u00a0entire\u00a0\u00a0 pipelay \u00a0route \u00a0are \u00a0also stipulated \u00a0in the \u00a0analysis.<\/span><\/p>\n<p><span style=\"color: #000000;\">Since the variation in tide is very minimal, the sensitivity analysis for water depth variation is not carried out. The pipelay analysis allows for the following variations from the optimum whilst still maintaining a combined stress level below the allowable value.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Barge tension of \u00b110 MT for all the varying water depths.<\/span><\/li>\n<li><span style=\"color: #000000;\">\u00b1 5% increase in submerged weight<\/span><\/li>\n<li><span style=\"color: #000000;\">\u00b1 5 deg. in barge trim angle<\/span><\/li>\n<li><span style=\"color: #000000;\">90 and 0 deg. beam sea current (1 year)<\/span><\/li>\n<li><span style=\"color: #000000;\">Sensitivity of the stinger elevation (from sea water level) e. :<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Maximum elev. Is 13.39m (15.85 deg. Of max stinger rotation at 20. 77m water depth) Minimum elev. Is- 2.43m (2.97 deg of min. Stinger rotation at 7.60m water depth)<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong> SURVEY AND POSITIONING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Tolerance<\/span><\/p>\n<p><span style=\"color: #000000;\">The pipeline will be laid along the routes defined in alignment sheets and its position will be within \u00b1 15m except within 450m at riser location and \u00b1 5m at trenching area. Maximum allowable deviation shall be reduced as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">From 450m to 150m from riser &#8211; tapering from 15m to<\/span><\/li>\n<li><span style=\"color: #000000;\">Within 150m from riser &#8211; 3m<\/span><\/li>\n<li><span style=\"color: #000000;\">At pipeline\/riser interface the deviation shall be sufficiently small to allow installation in the riser clamps without introducing bending stresses in the<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Minimum separation of 15m shall be maintained where pipeline is installed adjacent to an existing pipeline.<\/span><\/p>\n<p><span style=\"color: #000000;\">Pre-Survey<\/span><\/p>\n<p><span style=\"color: #000000;\">The pre-installation route survey for the 12&#8243; dia. pipeline with 4&#8243; dia. piggy back will be carried out prior to pipelay. Refer to Document No. SR-TKM-OPR-GEN-01, Pre-Installation Survey Procedure for Proposed Pipeline and SPM\/PLEM.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Barge Positioning<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Barge will be positioned primarily using navigation DGPS Positioning Systems. The systems use multiple onshore reference DGPS station to determine pseudo range data link. The DGPS positioning system will be available onboard as a back-up system if required and to provide constant online QAIQC checks against the navigation DGPS Positioning Systems.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Anchor \u00a0Handling Tug Positioning<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The anchor handling vessels will be using the Barge Management System (BMS) controlled from barge as their positioning system. The system works in conjunction with the Tug Management System (TMS) installed on both anchor handling tugs. The tug&#8217;s position will be continually transmitted to the barge via UHF radio link. On the BMS monitor the outline of each tug is shown in a different colour for easy identification. During anchor running, the Surveyor on duty will enter the coordinates of the proposed anchor position into the BMS system. A printout of the target position will be automatically generated and the position will be transmitted by telemetry \u00a0link \u00a0to \u00a0the selected Tug Management System on the Tug.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Pipeline Positioning \/<\/u><em><u>\u00a0<\/u><\/em><u>Survey<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">A software package will be used as the online computer navigation system provided by Veripos, which is interfaced with 1 x lmmarsat DGPS as Primary through High Power Spot Beam 109E and 1 x Secondary DGPS through High Power lOR. For positioning of pipeline start-up and laydown, the ultra-short baseline (USBL) beacon will be mounted on the ROV which will be tracked using a USBL Transceiver which will be installed on the over the side pole mounting and a long deck cable is used to connect to the top side unit in the barge bridge. Control\u00a0 will be interfaced to the surface navigation system. All subsea pipeline\/cable positioning will be carried out using the USBL system and the ROV.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>As-Laid Survey<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The as-laid side-scan survey of the 12&#8243;dia. with 4&#8243; piggy-back pipeline will be carried out by SUBCONTRACTOR. This will be completed to determine the free span locations. The allowable free spans are shown in COMPANY approved for construction pipeline alignment sheets.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>LINEPIPE HANDLING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The sling arrangements for lifting of the line pipes from the material barge on to the deck of derrick lay barge and from the deck into the transfer station are shown in Fig. 4.3.6-1.<\/span><\/p>\n<p><span style=\"color: #000000;\">Use average pipe length= 12.2m. line pipe joint unit weights are as follows:<\/span><\/p>\n<table style=\"height: 851px;\" width=\"810\">\n<tbody>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">PIPE DESCRIPTION<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">CONCRETE \u00a0COATING THICKNESS\/DENSITY<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">EMPTY WEIGHT IN AIR (MT)<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">EMPTY WEIGHT IN WATER (MT)<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">114.3mm OD x 10.0mm \u00a0x 4.0mm 3LPP<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">N\/A<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">0.331<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">0.183<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">323.9mm OD x 15.9mm x<\/span><\/p>\n<p><span style=\"color: #000000;\">5. 5mm Asphalt Enamel<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">45 mm <em>I <\/em>3,040kg\/m 3<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">3.553<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">1.777<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">323.9mm OD x 15.9mm x 5.5mm Asphalt Enamel<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">65 mm <em>I <\/em>3,040kg\/m 3<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">4.589<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">2.464<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">323.9mm OD x 15.9mm x 5.5mm Asphalt Enamel<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">90 mm <em>I <\/em>3,040kg\/m 3<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">6.017<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">3.408<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">323.9mm OD x 15.9mm x<\/span><\/p>\n<p><span style=\"color: #000000;\">5. 5mm Asphalt Enamel<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">120 mm <em>I <\/em>3,040kg\/m 3<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">7.921<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">4.669<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"199\"><span style=\"color: #000000;\">323.9mm OD x 15.9mm x 5.5mm Asphalt Enamel<\/span><\/td>\n<td width=\"172\"><span style=\"color: #000000;\">130 mm <em>I <\/em>3,040kg\/m3<\/span><\/td>\n<td width=\"126\"><span style=\"color: #000000;\">8.601<\/span><\/td>\n<td width=\"121\"><span style=\"color: #000000;\">5.120<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>LINEPIPE PREPARATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Followings are activities to be carried out for each pipe joint before reaching the line-up station:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Bevel\/end-preparation the joint ends to J-bevel using 12&#8243; dia. pipe facing machines prior to transferring into ready rack. Bevel preparation for 4&#8243; pipe will be carried-out at station no. 1.<\/span><\/li>\n<li><span style=\"color: #000000;\">Prepare the ready rack with the appropriate pipe joints. The linepipe description (i.e. anode, plain, colour code etc.) for each joint number assignment is given in Tables 1.2-1A for 4&#8243; dia. line pipe and for 12&#8243; dia. Pipeline respectively.<\/span><\/li>\n<li><span style=\"color: #000000;\">Register the pipe joint number, plain\/anode and the input i.e. pipes in the table \u00a0will \u00a0be updated continuously depending on the exact pipe length and the actual measured KP by Surveyor. Standard pipe tally sheets for daily submission to COMPANY. (Refer to Fig.4.3.7-1 for pipe tally sheet pro-forma).<\/span><\/li>\n<li><span style=\"color: #000000;\">Pre-heat both ends of the pipe joint when pipe enters the line-up station.<\/span><\/li>\n<li><span style=\"color: #000000;\">Paint the sequential joint number onto each pipe. The number needs to be painted on the &#8220;bow&#8221; end of each pipe joint in the 10 o&#8217;clock and 2 o&#8217;clock positions with white quick drying marine paint.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>WELDING <\/strong><strong><em>I <\/em><\/strong><strong>NDT <\/strong><strong><em>I <\/em><\/strong><strong>WELD REPAIR<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Welding, \u00a0NDT \u00a0and \u00a0weld \u00a0repair \u00a0procedures \u00a0have \u00a0been \u00a0prepared \u00a0in \u00a0accordance \u00a0to \u00a0COMPANY Specification, Pipeline Welding and Inspection.<\/span><\/p>\n<p><span style=\"color: #000000;\">Details of the welding, NDT, repair and field joint coating activities at each station are summarized in Table 4.3.2. The drawings for internal pipeline equipment are shown in Fig. 4.3.8-1 to 4.3.8\u00b74<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>Welding<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Detail pipeline welding procedures can be referred in Document No. SR\u00b7TKM\u00b7WLD-GEN-01, Welding Procedure Specification. Automatic welding system will be utilized for 12&#8243; pipeline root pass, hot pass, filler and capping passes. Manual welding system; &#8220;Shielded Metal Arc Welding&#8221; will be deployed for 4&#8243; dia. pipeline.<\/span><\/p>\n<p><span style=\"color: #000000;\">An internal line-up clamp will be used to align and fix the 12&#8243; dia. pipe but an external line-up clamp will be used to align and fix the 4&#8243; pipe for the root and hot pass in weld Station No. 1 and or otherwise known as bead-stall. Note that the linepipe is HFWIERW pipe and at the ends of each joint will be re-beveled outside the ready rack prior to transfer to the bead stall.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>NDT<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">All pipeline welds shall be subjected to 100% radiographic inspection which will be carried out in Station No. 5 or 6. Station No. 1 to 4 will be used as an optional radiographic inspection station if required. Project specific pipeline NDT procedures are detailed in Document No. SR\u00b7TKM\u00b7NDT\u00b7 GEN-06, Provisions of General NDT Procedure for Pipelines (26&#8243; OD <em>I <\/em>12&#8243; OD <em>I <\/em>4&#8243; Piggyback). An internal x-ray crawler will be utilized to obtain radiographic \u00a0image \u00a0of \u00a0every \u00a0field \u00a0joint weldment. Its arrangement is shown in Fig. 4.3.8-3. The film will be developed and image interpreted \u00a0by radiograph interpreters.<\/span><\/p>\n<p><span style=\"color: #000000;\">An external portable x-ray will be utilized for 4&#8243; pipeline to obtain radiographic image of every field joint weldment.<\/span><\/p>\n<p><span style=\"color: #000000;\">If re-shot needs to be carried out after application of anti-corrosion coating tape, the x-ray film will be placed over the anti-corrosion coating tape without needs for its removal and the weld will be re-shot.<\/span><\/p>\n<p><span style=\"color: #000000;\">SUBCONTRACTOR \u00a0will carry-out a mock-up on the barge to verify the quality of the film and measure radiation level.<\/span><\/p>\n<p><span style=\"color: #000000;\">Should the quality and density of the re-shot film does not meet the specification requirement, the anti-corrosion coating tape shall be removed and the weld re-shot.<\/span><\/p>\n<p><span style=\"color: #000000;\">Precautions as listed below will be implemented \u00a0to \u00a0reduce \u00a0risk \u00a0of \u00a0personnel \u00a0exposure \u00a0to radiation (on the derrick barge and adjacent materials \u00a0barges\/vessels). \u00a0Refer \u00a0to \u00a0the \u00a0Radiation Safety Procedure, Doc. No. SR-TKM\u00b7NDT\u00b7GEN-02 for detailed safety precautions.<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Adherence to warning signs &#8211; Only authorized personnel shall be in the immediate radiograph<\/span><\/li>\n<li><span style=\"color: #000000;\">Whilst the radiograph warning light is flashing, all personnel are to keep out of the area<\/span><\/li>\n<li><span style=\"color: #000000;\">A safe distance from the radiograph station will be pre-determined and fenced<\/span><\/li>\n<li><span style=\"color: #000000;\">For radiograph inspection outside of the dedicated station (i.e. for weld repair situations),\u00a0 the following steps will be taken:<\/span><br \/>\n<span style=\"color: #000000;\"> i) A moveable &#8220;dog house&#8221; lead shield shall be placed over the immediate radiograph. The lead shield shall prevent radiation exposure above and from the sides of the shield.<\/span><br \/>\n<span style=\"color: #000000;\"> ii) Shielding shall be placed upon the floor to protect those<\/span><br \/>\n<span style=\"color: #000000;\"> iii) Radiation survey meters shall be used to ensure the operation is not exposing personnel to radiation<\/span><\/li>\n<li><span style=\"color: #000000;\">Audible signal are also provided to worn<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong><u>WELD REPAIR<\/u><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Weld repair will be carried out subject to approval in conjunction with Document No. PTS 20.120 by COMPANY. The weld acceptance criteria shall be in accordance to API 1104 Section 6 and DEP.61.40.20.30 GEN Section 6.<\/span><\/p>\n<p><span style=\"color: #000000;\">Weld repair length calculations are as per engineering calculation for weld repairs at Station No.\u00a0 \u00a0<em>1\\<\/em><\/span><\/p>\n<p><span style=\"color: #000000;\">6 \u00a0on \u00a0the \u00a0barge. \u00a0The \u00a0maximum \u00a0gouge \u00a0lengths \u00a0for \u00a0both \u00a0stations \u00a0are \u00a0as \u00a0specified \u00a0in \u00a0the \u00a0above document. Weld repair will be carried out manually using SMAW process. Refer to Section 4.4 for extract from Document No. SR-TKM-ENG-MCRA-OGT-P101, \u00a0Pipelay and Weld Repair Analysis- 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong><u>BUCKLE DETECTION<\/u><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A buckle detector assembly will be positioned at a minimum of 4 joints past the furthest touchdown point. This assembly will provide a mean of identifying any deformity occurring in the pipe string after the string has left the lay barge.<\/span><\/p>\n<p><span style=\"color: #000000;\">The buckle detector system set\u00b7up will consist of the following components:<\/span><\/p>\n<p><span style=\"color: #000000;\"><i>&#8211;\u00a0<\/i>One buckle detector system completes with 6mm thk. aluminium gauging plate.<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; 5\/8&#8243; OD x 2000ft wire cable<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; 1&#8243; ID x 0.049&#8243; WT x 10ft lg. copper tubbing<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; X\u00b7ray stop trolley<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; 12&#8243; internal line-up clamp \u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; 5T air tugger<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; Load cell with gauge readout<\/span><\/p>\n<p><span style=\"color: #000000;\">The X\u00b7ray stop trolley will be attached to the 5\/8&#8243; dia. cable approximately \u00a0at \u00a0station \u00a08 \u00a0or between station 7 8: 8. A 5\/8&#8243; dia. cable connected to the end of the line\u00b7up clamp reach rod and terminating at an air tugger located on the bow completes the assembly.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Fig. 4.3.9\u00b71 for the proposed assembly of a 12&#8243; dia. buckle detector. Gauging plate will be fixed at 266.6 mm diameter which is based on the DnV 1989 \u00a0rule:<\/span><\/p>\n<p><span style=\"color: #000000;\">0 = (D- 2t) \u00b70.01D- 0.4t- 5P<\/span><\/p>\n<p><span style=\"color: #000000;\">Where\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/p>\n<p><span style=\"color: #000000;\">D =\u00a0Nominal OD of pipe (323.9 mm)<\/span><\/p>\n<p><span style=\"color: #000000;\">t =\u00a0 Wall thickness of pipe (15.9 mm)\u00a0<\/span><\/p>\n<p><span style=\"color: #000000;\">p = 0.2t or 5 mm whichever \u00a0is smaller<\/span><\/p>\n<p><span style=\"color: #000000;\">The insertion of buckle detector inside the pipes will be easier when more joints are on the seabed such that the back pressure inside the pipeline being laid is minimized. When the pipe joint No. 150 or more at the beadstall. buckle detector shall be deployed by blowing down. The deployment will be carried by means of a pneumatic system (blow down cap) incorporated in the assembly. An air hose will be pre-attached to the blowdown cap to supply pressurised air so that the buckle detector can be blown down along the pipeline profile and moves toward touchdown. With each pull of the pipeline. the wire cable will pay out one joint length of cable. Once all cable is paid out, the buckle detector assembly will be pulled forward using air tugger at the bow of the barge.<\/span><\/p>\n<p><span style=\"color: #000000;\">The buckle detector assembly will operate typically as follows:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">When welding has been completed at all stations along the mainline, the cable from the air tugger to the reach rod will be disconnected and the barge move ahead 2m.<\/span><\/li>\n<li><span style=\"color: #000000;\">The next joint will be transferred \u00a0from the \u00a0ready rack to the line-up \u00a0The air tugger line will then be pulled through the new joint and connected to the line-up clamp reach rod.<\/span><\/li>\n<li><span style=\"color: #000000;\">The air tugger \u00a0will commence \u00a0to \u00a0haul in the cable, \u00a0the line-up clamp \u00a0and buckle detector assembly, which will travel up along the pipe string towards the beadstall (Station 1).<\/span><\/li>\n<li><span style=\"color: #000000;\">The load on the buckle detector assembly, indicated by a gauge mounted on the air tugger will be recorded for each corresponding joint number during each<\/span><\/li>\n<li><span style=\"color: #000000;\">Any excessive deviations from the average pull force being recorded will initiate the alarm on the load An immediate investigation will be carried out to ascertain the cause<\/span><\/li>\n<li><span style=\"color: #000000;\">The line-up clamp will be activated and welding<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Fig. \u00a04.3.9-1 \u00a0to 4.3.9-5 \u00a0shows \u00a0the \u00a0details \u00a0of \u00a0internal \u00a0pipeline \u00a0equipments, \u00a0arrangement, \u00a0cable make-up and installation process.<\/span><\/p>\n<p><span style=\"color: #000000;\">The buckle detector assembly will be removed prior to pipe laydown. The buckle detector will be monitored from the tension gauge for every each pipe pull<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>FIELD JOINT COATING<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The field joint coating will be applied in two field joint stations after the fields welds have been radio graphed and visually inspected. The field joint area for 12&#8243; Condensate pipeline will \u00a0be wrapped with cold-applied anti-corrosion coating tape &#8220;Polyken&#8221;\u00a0 and HDPU foam \u00a0infill while\u00a0 4&#8243; MEG pipeline will be wrapped with heat shrink sleeve.<\/span><\/p>\n<p><span style=\"color: #000000;\">The first portion of the field joint coating system i.e. Polyken #980\u00b7SSJ\u00b7X or heat shrink sleeve will be carried out in Station No. 7 and 8 (if required). The second portion of the field joint \u00a0coating system i.e. foam infill will be carried out in Station No. 8.<\/span><\/p>\n<p><span style=\"color: #000000;\">Similar application system will be utilized for repair of existing corrosion and concrete coating. If damage on the yard corrosion coating is outside the coverage of the \u00a0Polyken \u00a0#980-SSJ\u00b7X, \u00a0an addition 150mm wide strip will be \u00a0wrapped \u00a0around \u00a0the \u00a0affected \u00a0area. \u00a0Excessively \u00a0damaged concrete joints \u00a0will be returned \u00a0to the coating yard.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Polyken #980-SSJ-X Application<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Primer will not be required with the Polyken #980\u00b7SSJ\u00b7X proposed for the pipelines temperature ranges when they are utilized on concrete weight coated lines under a joint filling material. The following procedure will be adopted for the application.<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">As specified in the Polyken #980-SSJ\u00b7X Datasheet, total weld area, including exposed corrosion coat will be power-wire brushed to remove all rust, weld spatter, insecure mill scale, dirt, dust and other deleterious \u00a0matter \u00a0and \u00a0to be cleaned\u00a0 and dry<\/span><\/li>\n<li><span style=\"color: #000000;\">The application of \u00a0Polyken \u00a0#980-SSJ\u00b7X \u00a0as follows (and also shown in 4.3.10\u00b71 ):<\/span><\/li>\n<li><span style=\"color: #000000;\">450mm wide \u00a0Polyken \u00a0#980-SSJ\u00b7X, \u00a0cold \u00a0applied \u00a0pipewrap, \u00a0will \u00a0be \u00a0applied \u00a0in \u00a0a \u00a0single continuous layer, cigarette wrap, centring on the line of the<\/span><\/li>\n<li><span style=\"color: #000000;\">150 mm wide strips will be applied in a single continuous layer, \u00a0cigarette wrap, \u00a0one at each extremity of the 450 mm wide Polyken 980-SSJ\u00b7X.<\/span><\/li>\n<li><span style=\"color: #000000;\">For all cigarettes wrap method, application should be with a minimum of 25mm overlap.<\/span><\/li>\n<li><span style=\"color: #000000;\">Application of Polyken #980-SSJ\u00b7X will take place on a \u00a0clean, \u00a0dry, \u00a0firm \u00a0surface, \u00a0employing sufficient \u00a0hand \u00a0tension \u00a0to assure a smooth, wrinkle free<\/span><\/li>\n<li><span style=\"color: #000000;\">After application, the surface will be holiday tested using Holiday Detector with circle spring electrode capable of measuring at up to 15kV for Polyken #980\u00b7SSJ\u00b7X to check \u00a0integrity between the pipe surface and Polyken #980-SSJ\u00b7X. If holiday is detected, the Polyken #980-SSJ\u00b7 X will be removed and steps 1 to 5<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">The following pages are the Technical Data Sheet ft MSDS for Polyken #980-SSJ\u00b7X.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>Foam lnfill Addition<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Foam infill shall be High Density Poly Urethane -Sethane F160M (HDPU).<\/span><\/p>\n<p><span style=\"color: #000000;\">The foam shall be applied as a one part system to an OD equal to the OD of the concrete weight coating after application of the field joint corrosion coating.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Fig. 4.3.10-2 for details.<\/span><\/p>\n<p><span style=\"color: #000000;\">Metal sheet shall be wrapped over the entire field joint area and extend onto the plant\u00ad applied, concrete coating by 6 inches on each side. This form shall be securely strapped or banded at each end over the concrete coating. To use the form, an opening at the top of the form shall be utilized to fill joint with foam. After filling the mould, the opening will be strapped shut.<\/span><\/p>\n<p><span style=\"color: #000000;\">The following pages are the Technical Data Sheet 8: MSDS for HDPU.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong><u>Heat Shrink Sleeve for 4&#8243; Pipe<\/u><\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Heat shrink sleeve is a wrap around sleeve shall consist of radiation cross-linked, high density polyethylene with PCI (Permanent Change Indicator). Heat shrink sleeves especially suitable for higher stress condition caused both by elevated temperature and by soils with severe contraction between wet-dry cycles.<\/span><\/p>\n<p><span style=\"color: #000000;\">The heat-shrinkable sleeve is wrapped around and shrunk to form a tight fit around the joint as Fig. 4.3.10-3. During recovery, the adhesive softens and flows to form a perfect bond with the pipe surface providing protection against corrosion. The radiation cross-linked outer layer forms a tough barrier against mechanical damage and moisture transmission.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Appendix 5 for &#8216;&#8221;&#8216; technical data.<\/span><\/p>\n<p><span style=\"color: #000000;\">For more detail, please refer \u00a0to \u00a0Field Joint \u00a0Coating, \u00a0lnfill and \u00a0Coating \u00a0Repair \u00a0Procedure&#8221; \u00a0Doc. No. \u00a0SR-TKM-OPR-GEN-10.<\/span><\/p>\n<p><span style=\"color: #000000;\">The following pages are the Technical Data Sheet &amp; MSDS for Raychem WPC100M.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Typical Piggy Back Block Installation<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Piggyback blocks manufactured by Lankhorst\/ Mouldings where they can be swiftly installed onto a pipeline during a vessel lay operation. The blocks are lightweight and easy to handle, and do not require a great deal of force to be installed.<\/span><\/p>\n<p><span style=\"color: #000000;\">With the exception of the pneumatic strapping tool, no special equipment is required to install a Lankhorst\/ Mouldings piggy back block system.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Piggy Back Block Component<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The Piggy Back Blocks (PBB&#8217;s) for this project consist of a body and a cap.<\/span><\/p>\n<p><span style=\"color: #000000;\">There are two size of Piggy Back Block to suite different range of concrete coating thickness:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Type 1<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">16.5inch-4.8inch is meant to suit 12&#8243; OD pipeline with concrete thickness range from 45mm to 65mm.<\/span><\/p>\n<ol start=\"2\">\n<li><span style=\"color: #000000;\">Type 2<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">23.5inch-4.8inch is meant to suit 12&#8243; OD pipeline with concrete thickness range from 90 to 130mm.<\/span><\/p>\n<p><span style=\"color: #000000;\">PBB&#8217;s shall be installed (at regular intervals) on the main line with the 4&#8243; OD piggy line positioned in the designated slot. The slot shall be closed\/covered by a single cap (166 x 166 x 15 mm). The body and cap shall be fastened to the main pipe by two (2) Carbon Steel and one (1) Alloy 625<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Appendix 4 for System Quality Test.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Piggy Back Block Installation <\/u><em><u>Sequence<\/u><\/em><\/span><\/p>\n<p><span style=\"color: #000000;\">The describe sequence of activities for installing a piggy back block shall be repeated for every individual piggy back block.<\/span><\/p>\n<p><span style=\"color: #000000;\">Installation sequence for applying the Piggy Back Blocks as follow:-<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Place &#8220;Piggy Back Block&#8221; onto the main Position the block at the desired location along the main pipe line. Maximum spacing between piggy back blocks is 10m.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lower the 4&#8243; pipeline into the designated piggy line cavity. Place cap on top of the body.<\/span><\/li>\n<li><span style=\"color: #000000;\">Install bandings the &#8220;Piggy Back Blocks&#8221; shall be installed using two (2) Carbon Steel straps and one (1) Alloy 625<\/span><\/li>\n<li><span style=\"color: #000000;\">Feed band around the pipe and &#8220;Piggy Back Block&#8221;.<\/span><\/li>\n<li><span style=\"color: #000000;\">Slide band through seal clip.<\/span><\/li>\n<li><span style=\"color: #000000;\">Tighten band by hand<\/span><\/li>\n<li><span style=\"color: #000000;\">Repeat step 4 \u00b7no. 6 for each individual strap until three (3) bandings are installed.<\/span><\/li>\n<li><span style=\"color: #000000;\">Tighten the bandings with the Pneumatic<\/span><br \/>\n<span style=\"color: #000000;\"> i) Tighten the carbon steel bands first and the Alloy625 band will be the last<\/span><br \/>\n<span style=\"color: #000000;\"> ii) Ensure that the banding is seated correctly or else the tool jaws may not engage properly onto the<\/span><br \/>\n<span style=\"color: #000000;\"> iii) Position the tool over the loose end of the band piece and operate the tool in accordance with the manufacturer&#8217;s Refer to Appendix 4.<\/span><br \/>\n<span style=\"color: #000000;\"> iv) Once the band has been sealed and cut, check the seal clip for its teeth If properly sealed the seal clip should have four (4) teeth marks as shown on the pictures below. If not, then remove the band and install a new band.<\/span><br \/>\n<span style=\"color: #000000;\"> v) Repeat this process for every band that is to be tightened and<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><u>Typical Anode Installation on 4&#8243; Dia. Line Pipe<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Anode Installation Sequence<\/u><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Carefully removed 4mm 3LPE coating from 4&#8243; pipeline surface with 1 <em>Y, <\/em>inch puncher for cable termination point. Each termination point shall be equally spaced at 180\u00b0 around the circumference of the pipeline, approximately at middle of line pipe.<\/span><\/li>\n<li><span style=\"color: #000000;\">Termination points shall be at 3 o&#8217;clock and 9 o&#8217;clock<\/span><\/li>\n<li><span style=\"color: #000000;\">The surface of line pipe or doubler plates shall cleaned of any rust, mill scale or coating by using appropriate tools such as pencil grinder, wire brush, abrasive paper and rags to clean it<\/span><\/li>\n<li><span style=\"color: #000000;\">Crimp copper cable lug to the end of the termination cable (if copper lug is not installed).<\/span><br \/>\n<span style=\"color: #000000;\"> Note: Each anode (halves shell) had a pre-install termination cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Matching anodes pairs shall be attached around the anti-corrosion. \u00a0One anode \u00a0half \u00a0section position on the top of the pipe while the other half shall be placed under the top<\/span><\/li>\n<li><span style=\"color: #000000;\">Clamped halves shell tightly to the 4&#8243; dia. pipe and weld the steel tab together according to approved welding procedure. Refer to Doc. no. SR-TKM-WLD-GEN-01 -Welding Procedure Specification.<\/span><\/li>\n<li><span style=\"color: #000000;\">Cable lug will be secured to 0 8.0 mm bolt or stud which welded to the doubler plate. The bolt or stud shall be welded to doubler before assembling anode on the pipe. Refer to Fig. 4.3.12.1-1 and Fig. 4.3.12.1-2 for detail.<\/span><\/li>\n<li><span style=\"color: #000000;\">Mastic filler is used to repair the expose area caused by the removing corrosion coating prior to weld the doubler plate. Refer to Fig. 4.3.12.1-3.<\/span><\/li>\n<li><span style=\"color: #000000;\">Use a low intensity yellow flame for\u00a0 pre-heating the coating and applying the repair products. With quick back and forth strokes, pre-heat the repair zone sufficiently to remove moisture and assist in adhesion.<\/span><\/li>\n<li><span style=\"color: #000000;\">Place the filler material onto the damaged area with the release paper facing Firmly press the material into the damaged area by hand and remove the release paper.<\/span><\/li>\n<li><span style=\"color: #000000;\">After filling the damaged area, remove the excess filler to create a smooth As \u00a0an option, use a low intensity yellow flame to warm the filler material and assist in smoothing it out.<\/span><\/li>\n<li><span style=\"color: #000000;\">All internal and external of each anode half shelf surfaces shall be inspected for any dirt, unspecified oils, grease foreign material, grit or metallic Use appropriate tools such as wire brush and rags to clean it up.<\/span><\/li>\n<li><span style=\"color: #000000;\">The maximum gap between the anode half is Refer to Fig. 4.3.12-4.<\/span><\/li>\n<li><span style=\"color: #000000;\">The steel straps of anode should be fillet weld Prior to fillet welding the anode steel strap, the corrosion coating should be protected by using fire blanket. The plate shall be placed in the anode gaps to prevent any burning or melting of the coating during welding operation.<\/span><\/li>\n<li><span style=\"color: #000000;\">The surface of doubler plate should be clean from any rust, mill scale or coating by using appropriate tools such as abrasive paper and rags to clean it<\/span><\/li>\n<li><span style=\"color: #000000;\">The doubler plate shall be fillet weld to the anode steel The plate shall be placed in the anode gaps to prevent any burning or melting of the coating during welding operation.<\/span><\/li>\n<li><span style=\"color: #000000;\">Any slack cable shall be laid into the gap between the anode The cable shall be retrained at the bottom of this gap during application of the filler compound such that the connected cables are entirely covered.<\/span><\/li>\n<li><span style=\"color: #000000;\">Cover the anode gap with steel<\/span><\/li>\n<li><span style=\"color: #000000;\">Set the requirement volume need to infill the gap between halves at the foam machine control<\/span><\/li>\n<li><span style=\"color: #000000;\">Connect the foam machine nozzle with the flexi plastic Tight the hose using hose clips.<\/span><\/li>\n<li><span style=\"color: #000000;\">Begins to fill the gaps of anode at the hole of Open the mould after 1 minute and reshape the solid foam.<\/span><br \/>\n<span style=\"color: #000000;\"> Note: lnfill material could be prepared either manually or automatically mix by machine. And the infill material can be applied manually.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><u>Mechanical Test<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">The mechanical test shall consist of one firm blow from hammer having a mass of 1 kg at the weld area and then checked visually for any sign of inadequate\u00a0 and no visible fracture was observed.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Electrical Test<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">An electrical continuity test shall be conducted between anode and pipe joint with an ohmmeter. The test shall shown that a low resistance between the anode body and the pipe. Measured between the anode and the pipe steel, shall not exceed 50 Ohms.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Visually Inspected<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">All attachment welds shall be visually inspected to meet the requirement of API 1104.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPELINE LAYDOWN <em>I <\/em>ABANDONMENT AND RECOVERY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following laydown procedures will be applied at KP 68.500 and at the end of the pipelay where the laydown coordinates are pre-determined at platform MCR\u00b7A location. After 26&#8243; pipeline beach pull operation completed and abandon at KP 69.000, 12&#8243; + 4&#8243; piggy back pipelines to be recovered at KP 68.500 in order to complete approximately 73 Km pipelines installation.<\/span><\/p>\n<p><span style=\"color: #000000;\">However, the exact KP shall be confirmed by Surveyor based on real time final position. The laydown\/abandonment and recovery procedures will also be used if it is required to suspend the pipelay operations due to some unforeseen circumstances such as bad weather.<\/span><\/p>\n<p><span style=\"color: #000000;\">The final pipeline route and length for 12&#8243; dia. with 4&#8243; piggy-back pipeline OGT to MCR-A laydown point will be based on Surveyor final position.<\/span><\/p>\n<p><span style=\"color: #000000;\">Safety Note: All non-related personnel to stay clear of pipe tunnel during laydown\/abandonment and recovery operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>EQUIPMENT LIST AND PREPARATIONS<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following items are required for pipeline laydown:<\/span><\/p>\n<table style=\"height: 1220px;\" width=\"795\">\n<tbody>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">ITEM<\/span><\/p>\n<\/td>\n<td width=\"428\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">DESCRIPTION<\/span><\/p>\n<\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">QUANTITY<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Shackle, 85MT Green Pin Standard Shackles bow shackles with safety bolt G-4163 \u00a0(for item no. 7)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">12&#8243; (323.9mm) \u00a0OD \u00a0Laydown Head, pre-welded with \u00a0temporary \u00a012&#8243; WN RTJ flange, class 1500# (ASME B16.5)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">3<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">12&#8243; (323.9mm) OD Start-up Head, welded to pipe.<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">4<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">55 316 Octagonal Ring Gasket RTJ, R58<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">5<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Temporary stud bolt 2&#8243; dia. x 390mm length c\/w 2 nuts with UNC threaded, Blacken Type (for 12&#8243; Dia.)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">32 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">6<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">4&#8243; (114.3mm) OD Laydown Head, welded to pipe.<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">7<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">4&#8243; Blind flange RTJ flange, class 2500# (ASME B16.5)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">8<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">55 316 Octagonal Ring Gasket RTJ, R38<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">9<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Temporary stud bolt \u00a01 1\/2&#8243; dia. x 260mm length c\/w 2 nuts UNC threaded, Blacken Type (for 4&#8243; Dia.)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">16 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">10<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Underwater video camera mounted end of stinger<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 set<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">11<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Strip out block to suit laydown winch cable (if required)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 set<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">12<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Wire rope sling, size 2 inch dia. x 20 ft length, IWRC 6&#215;36 EIPS ungalvanized w\/ 2ft soft eye both end mechanical spliced (for sacrificial sling)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">13<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">180MT Capacity of A&amp;R Winch c\/w 76mm (3&#8243;) dia. x 1,100 m length cable<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 unit<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">14<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">ROY c\/w 76mm (3&#8243;) hydraulic anvil cutter<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">1 unit<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">15<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">White \u00a0Paint (7 liter\/Can)<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">20 can<\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"66\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">16<\/span><\/p>\n<\/td>\n<td width=\"428\"><span style=\"color: #000000;\">Temporary half shell flange guide c\/w clamps on each side \u00a0and bolts and nuts<\/span><\/td>\n<td width=\"109\">\n<p style=\"text-align: center;\"><span style=\"color: #000000;\">2 nos<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>LAYDOWN PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following \u00a0steps will be carried out for laydown of the pipelines.\u00a0 Refer to Fig. 5.3-1 for the anchor patterns set-up:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">As the lay barge approaches target laydown KP coordinates (to be confirmed with Surveyor), begin preparing the rigging for pipeline Refer to Fig. \u00a05.3-4 for \u00a0pipeline laydown rigging arrangement.<\/span><\/li>\n<li><span style=\"color: #000000;\">Weld the permanent flanges to the last joint of the pipeline and complete all x-ray of the remaining field joints at their respective<\/span><br \/>\n<span style=\"color: #000000;\"> Note: The internal bevel on min 1:3 gradient shall be performed on permanent flanges:<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; 4&#8243; dia- 0 mm WT prior to welding with last joint, 10.0mm WT.<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; 12&#8243; &#8211; 15.9mm WT prior to welding with last joint, 15.9mm WT.<\/span><\/li>\n<li><span style=\"color: #000000;\">Recover the followings from inside of the pipeline:<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Internal line-up clamp<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; X-ray crawler<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Stop trolley<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Buckle Detector<\/span><\/li>\n<li><span style=\"color: #000000;\">Paint (white) the 12&#8243; laydown head and perform flange tie-in between the laydown head and the last joint of the pipeline. lnstall4&#8243; 2500# blind flange complete with 2&#8243; ball valve on the permanent 4&#8243; dia. flange. Fix the temporary half shell flange guide on bottom side of the flange tie-in position. \u00a0Ensure the cut back have adequate space for stud bolt inserting and bolt tensioning equipment. The temporary flange protector need to be modified accordingly. Laydown head and temporary flange guide \u00a0are \u00a0illustrated \u00a0in \u00a0Fig. \u00a05.3-5, \u00a0Fig.5.3\u00b76 \u00a0and Fig. 5.3-7 respectively.<\/span><\/li>\n<li><span style=\"color: #000000;\">Close valve and install plugs on the laydown head and 4&#8243; blind<\/span><\/li>\n<li><span style=\"color: #000000;\">Connect the end of the 3&#8243; A&amp;R cable and the laydown head via a sacrificial sling with two (2) nos. of 85 MT shackles on the both end configuration. The sacrificial sling will be painted white for easy identification by ROV to cut the sacrificial sling. Refer to Fig. 5.3\u00b74 for the laydown rigging arrangement.<\/span><\/li>\n<li><span style=\"color: #000000;\">Pull the barge until the laydown head just entering the forward Gradually transfer all the tension to the A&amp;R cable and open up the tensioner top track.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue pull the barge ahead until the laydown head is at the aft Gradually transfer all the tension to the A8:R cable. At this stage, both tensioner shoes are free from pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue advancing the barge forward until the laydown head is at stern of the barge.<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy ROV to monitor the laydown ROV may be used as an additional aid in providing visual of the laydown head.<\/span><\/li>\n<li><span style=\"color: #000000;\">De-ballast the stinger to meet the required back-end roller elevation as per data from Field Data Book (FDB).<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue advancing the barge until the laydown head past the stinger This is indicated when the first is at the stern of the barge. ROV will provide the visual on the laydown head.<\/span><\/li>\n<li><span style=\"color: #000000;\">Gradually reduced the tension on the A8:R cable and let the laydown head settle on the seabed<\/span><\/li>\n<li><span style=\"color: #000000;\">Back up the barge for about 20m to provide slack on the A8:R The actual distance will be determined at site.<\/span><\/li>\n<li><span style=\"color: #000000;\">Send ROV to check the condition of the ROV will locate the sacrificial sling and cut the sling using hydraulic cutting arm. Another alternative is to use diver to unshackle the sling. ROV technician\/ pilot shall perform the wire cutter \u00a0trial cut \u00a0prior \u00a0mobilization \u00a0and launch ROV.<\/span><\/li>\n<li><span style=\"color: #000000;\">ROV and Survey to take fixes in order to find deviation between the as laid route and design<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>ABANDONMENT PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The abandonment procedure shall be executed under circumstances such as \u00a0bad \u00a0weather \u00a0or buckle. The steps for abandonment procedure are \u00a0the \u00a0same \u00a0as \u00a0laydown \u00a0procedure. \u00a0However, there are few \u00a0exceptions \u00a0as listed below:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">USBL beacon will be installed on the pipeline<\/span><\/li>\n<li><span style=\"color: #000000;\">Emergency laydown head will be Refer to Fig. 5.4-1 for details of the emergency laydown head.<\/span><br \/>\n<span style=\"color: #000000;\"> Note: For this pipeline installation, emergency \u00a0laydown head is similar to the normal laydown head but without WN Flange end.<\/span><\/li>\n<li><span style=\"color: #000000;\">The sacrificial sling connected from A&amp;R cable end (A&amp;R sheave at station 2) to the laydown may not be cut. The barge will back up to provide slack on the cable. However this will be determined based on site condition.<\/span><\/li>\n<li><span style=\"color: #000000;\">If the need arises to cut the sacrificial sling, install a marker buoy on the laydown head before laydown to seabed<\/span><br \/>\n<span style=\"color: #000000;\"> Note: In the event of abandonment, \u00a0the pipeline has to be completely laid down to the seabed and not to be suspended midway.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\">Fig. 5.4\u00b72 and Fig. 5.4-3 present the steps for laydown and abandonment procedure.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>RECOVERY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following steps will be carried out if it is necessary to recover a pipeline and recommence pipelay. The recovery is essentially the reverse of the abandonment procedure:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">The barge will be positioned so that the stern of the barge is at laydown head<\/span><\/li>\n<li><span style=\"color: #000000;\">Pay out the 3&#8243; AftR cable (complete with spelter socket) towards stern and lower it down to seabed.<\/span><\/li>\n<li><span style=\"color: #000000;\">Position the AftR cable to the stinger with assistance of snatch blocks and\/or air<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy diver to connect the AftR cable to laydown head on the seabed<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy ROV to monitor the recovery<\/span><\/li>\n<li><span style=\"color: #000000;\">Ballast the stinger as required with reference to extracts from Field Data<\/span><\/li>\n<li><span style=\"color: #000000;\">Start recovering the cable through the stinger and pipe ramp towards AftR sheave at station 2.<\/span><\/li>\n<li><span style=\"color: #000000;\">Back up the barge and gradually increase the pipelay tension as per pipelay analysis, increase additional 3MT to 5MT tension from the abandonment tension to counter efficiency lost in the winch<\/span><\/li>\n<li><span style=\"color: #000000;\">Maintain the pipelay tension and the stinger back-end roller elevation as per data from Field Data Book (FOB).<\/span><\/li>\n<li><span style=\"color: #000000;\">Activate the aft tensioner when the laydown head just passed the aft Maintain the tension at 600.5 kN (135 kips). Do not reduce the tension in the AftR cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue backing up the barge until the laydown head passed the forward Activate the tensioner. Gradually reduced the tension on the AftR cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">Dismantle all riggings on the laydown Cut the laydown head and perform necessary NOT inspection.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>Abandonment and Recovery<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Introduction<\/span><\/p>\n<p><span style=\"color: #000000;\">The purpose of the A&amp;R analysis is to define the safe working limits for the tension in the cable and the length of cable paid out, so as to ensure that the sagbend stresses in the pipeline remain within the maximum allowable value during the operations. The A&amp;R procedure is similar to the laydown procedure. Reference is made to section 3.8 for the results of the A&amp;R analysis at every section.<\/span><\/p>\n<p><span style=\"color: #000000;\">Two marks are recommended to be placed on the pulling cable from the laydown head i.e. 1st and 2nd Mark for the respective lay section. As an example for Section 1, the recommended 1st mark is 59.24 m and 2nd mark is 84.25 m. When the 1st mark from the pulling head, reaches the centreline\u00a0 of the stern barge roller, the pulling head will be at the stern of the stinger. When the 2nd Mark from the pulling head reaches the centreline of the stern barge roller, the cable tension can be gradually released and the pipeline can be allowed to settle to the bottom.<\/span><\/p>\n<p><span style=\"color: #000000;\">When the 1st mark from the end of the cable, reaches the centreline of the stern barge roller during the recovery of the pipeline, the pulling head is at the stern of the stinger. At this point, care should be taken to ensure that the pulling head has not hung up on the stinger. After the pulling head is safely on the stinger, the barge can be backed up under the pipeline while holding the particular minimum cable tension. As the pulling head proceeds up the stinger, the net buoyancy is automatically decreased to account for the added pipe weight.<\/span><\/p>\n<p><span style=\"color: #000000;\">Results of Analysis<\/span><\/p>\n<p><span style=\"color: #000000;\">The minimum tension level for each step is calculated using the static \u00a0stress criterion in the sagbend and overbend. Furthermore, a positive vessel movement is maintained. The cable &#8220;pay-out&#8221; is defined as the amount of cable between the A&amp;R head and stinger hinge.<\/span><\/p>\n<p><span style=\"color: #000000;\">The detail results of the A&amp;R analyses are provided in Appendix VII. Computer output can be found in Appendix XV, A summary of the results is presented in Table 3.8.<\/span><\/p>\n<p><span style=\"color: #000000;\">Dry Buckle<\/span><\/p>\n<p><span style=\"color: #000000;\">If a dry buckle occurs, the pipeline is recovered by moving the vessel backward, while cutting the pipeline during the take in. At the moment the buckle approaches the stinger tip, the geometry of the buckle determines whether or not the pipeline buckle pass the stinger and tensioners. If the buckle can pass the stinger, the pipeline will be taken in and the damaged section will be removed. If the buckle cannot pass the stinger, the A&amp;R head is welded on and the pipeline is abandoned according to the A&amp;R procedure as described in Section 3.6. Subsequently, the pipeline is flooded and cut off beyond the buckle, the procedure is now similar to the wet buckle contingency as described in Section 3.7.3.<\/span><\/p>\n<p><span style=\"color: #000000;\">In term of analysis, recovery of a dry buckle is considered as either as reversal of the pipeline installation if it will physically pass through the stinger. If the buckle pipe cannot pass the stinger, the pipeline will be abandoned and treated as a wet buckle.<\/span><\/p>\n<p><span style=\"color: #000000;\">Wet Buckle<\/span><\/p>\n<p><span style=\"color: #000000;\">When the pipeline buckles to the extent that a leak occurs, the pipeline will be abandoned in a controlled manner, and thoroughly inspected to check for evidence of the pipeline damage and to verify the extend of flooding.<\/span><\/p>\n<p><span style=\"color: #000000;\">Flooded lay analyses have been carried out in order to simulate pipelay in case a wet buckle occurs. Results of the analysis are presented in Table 3.9. For graphs concerning flooded lay reference is also made to Appendix VIII. In terms of analysis the S-mode recovery of the de-watered pipeline is identical to an A&amp;R operation as described in section 3.6.<\/span><\/p>\n<p><span style=\"color: #000000;\">Abandonment and Recovery Wet Buckle<\/span><\/p>\n<p><span style=\"color: #000000;\">Flooded A&amp;R analyses have been carried out to simulate the A&amp;R operation in case of wet buckle occurs. Summary of analyses are presented in Table 3.9 and references is also made to Appendix VIII for detailed result.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SEVERE DRY BUCKLE<\/strong><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">If the buckle is still dry but severe, weld the &#8220;lay down pull head&#8221; to the pipeline.<\/span><\/li>\n<li><span style=\"color: #000000;\">Shackle the \u00a0lay down \u00a0cable to the \u00a0pull head with \u00a01 ea x \u00a085MT shackles \u00a0and perform abandonment procedure as outlined in Section 5.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-position the barge alongside the pipeline for a multiple davit<\/span><\/li>\n<li><span style=\"color: #000000;\">Attach davit lines to the pipeline and perform a multiple davit lift as detailed in the Field Data Book (FDB).<\/span><\/li>\n<li><span style=\"color: #000000;\">Maintaining the pipeline profile, remove successive pipe joints to the buckled<\/span><\/li>\n<li><span style=\"color: #000000;\">Remove the buckled joint(s) and weld the pull head to the pipeline. Tie one end of a length of 1&#8243; rope to the pull head and the other end to a marker buoy. Lower line to seabed and disconnect all rigging.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-position the barge for recovery of the pipeline<\/span><\/li>\n<li><span style=\"color: #000000;\">Pay-out the recovery line with 1 ea x 85MT<\/span><\/li>\n<li><span style=\"color: #000000;\">Shackle the recovery line to the pull head, remove the marker line and perform recovery process as detailed in Section<\/span><\/li>\n<li><span style=\"color: #000000;\">Once the pulling head reaches the bead stall, it will be removed and the pipeline re\u00ad-bevelled.<\/span><\/li>\n<li><span style=\"color: #000000;\">Resume pipelaying<\/span><br \/>\n<span style=\"color: #000000;\"> Note: If the sever buckle occurs, a significant distance from the barge such that a multiple davit lift is not possible (i.e. buckle in the sag bend region), then pipeline will be flooded and wet buckle procedure (case B) followed<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><strong>WET BUCKLE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This refers to a pipeline buckle where the pipeline has been flooded with seawater. The wet buckle repair procedure is outlined as follows:<\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Cease all barge movement and pipelay<\/span><\/li>\n<li><span style=\"color: #000000;\">Superintendent, Field Engineers and CONTRACTOR \u00a0Representatives notified<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy divers\/ROY to inspect pipeline from end of stinger to touch down point on seabed<\/span><\/li>\n<li><span style=\"color: #000000;\">Determine location and type of buckle, namely:<\/span><br \/>\n<span style=\"color: #000000;\"> Case A &#8211; Pipeline buckled but not broken off<\/span><br \/>\n<span style=\"color: #000000;\"> Case B &#8211; Pipeline buckled, broken off and lying on seabed<\/span><\/li>\n<li><span style=\"color: #000000;\">Remove internal line-up clamp and x-ray crawler from inside the pipeline, (and x-ray stop trolley, if possible).<\/span><\/li>\n<li><span style=\"color: #000000;\">Under the direction of the Superintendent, commence moving the barge astern whilst simultaneously retrieving as many joints as possible up through the stern Cut out the joints and remove from the tunnel.<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><u>Case A<\/u><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Retrieve pipe until in the opinion of the Superintendent, it is not safe to bring the buckle up the stinger<\/span><\/li>\n<li><span style=\"color: #000000;\">Fit and weld the emergency laydown head onto the end of the Meanwhile, shackles the lay down cable to the lay down head.<\/span><\/li>\n<li><span style=\"color: #000000;\">Upon completion of welding, abandon the pipeline using the Abandonment Procedure detailed in Section 5<\/span><\/li>\n<li><span style=\"color: #000000;\">Proceed to step b) of Case B<\/span><\/li>\n<\/ol>\n<p><span style=\"color: #000000;\"><u>Case B<\/u><\/span><\/p>\n<ol>\n<li><span style=\"color: #000000;\">Retrieve all pipes in the stinger.<\/span><\/li>\n<li><span style=\"color: #000000;\">Re-position lay barge for a multiple davit lift of Refer to Field Data Book (FOB). Refer Fig. 6.1.5-1.<\/span><\/li>\n<li><span style=\"color: #000000;\">Deploy the diver with cutting equipment to cut out all the buckled section<\/span><\/li>\n<li><span style=\"color: #000000;\">Diver will attach rigging around the pipeline (12&#8243; + 4&#8243;) as per Wet Multiple Davit Lift procedure detailed in the Field Data Book and secure to the side of barge.<\/span><\/li>\n<li><span style=\"color: #000000;\">Recover the pipelines using the Multiple Davit Lift Procedure as detailed in Refer Fig. 6.1.5\u00b72 and Fig. 6.1.5-3.<\/span><\/li>\n<li><span style=\"color: #000000;\">Weld 12&#8243; and 4&#8243; &#8220;emergency laydown head&#8221; (equipped with Bi-di pig) to the pipeline at the side of the barge<\/span><\/li>\n<li><span style=\"color: #000000;\">An air hose will be connected to the emergency laydown head (require minimum 130psi air pressure). Sufficient compressed air supply will be provided by 750cfm compressor on board DLB Sea water discharging will take place to the allocated pond onshore.<\/span><\/li>\n<li><span style=\"color: #000000;\">Commence dewatering the pipelines by launching pre-install bi-di pig from individual emergency laydown<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue pumping air into the pipeline until the dewatering pig arrives at the pig receiver.\u00a0<\/span><br \/>\n<span style=\"color: #000000;\"> <u>Safety Note:\u00a0<\/u>Divers to keep clear of pipeline end during pigging operations.<\/span><\/li>\n<li><span style=\"color: #000000;\">Communicate with in-charge personnel on shore to confirm the pigs<\/span><\/li>\n<li><span style=\"color: #000000;\">Cease pumping air after confirmation arrival of the pig<\/span><\/li>\n<li><span style=\"color: #000000;\">Disconnect the hose, closed the ball valve and install the 2&#8243; plug on each emergency<\/span><\/li>\n<li><span style=\"color: #000000;\">Lower-down the pipelines gradually to seabed using the Multiple Davit Lift Procedure as detailed in FBD<\/span><\/li>\n<li><span style=\"color: #000000;\">Recover the pipelines as per section 5.<\/span><\/li>\n<li><span style=\"color: #000000;\">Resume pipelaying operation, only after determining the reason for the buckle and taking corrective steps<\/span><\/li>\n<\/ol>\n<h3><span style=\"color: #000000;\"><strong>SHORE APPROACH AND BEACH PULL &#8211; 26&#8221; &amp; 12&#8221;+4&#8221; Piggy Back Pipeline<\/strong><\/span><\/h3>\n<p><span style=\"color: #000000;\"><strong>INTRODUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The proposed pipelines for the beach pull will be laid as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">12&#8243; 0 x 400m condensate pipeline from OGT to SPM (North).<\/span><\/li>\n<li><span style=\"color: #000000;\">12&#8243; 0 x 400m condensate pipeline from OGT to SPM (South).<\/span><\/li>\n<li><span style=\"color: #000000;\">26&#8243; 0 x 400m gas export pipeline from OGT to MCR\u00b7A.<\/span><\/li>\n<li><span style=\"color: #000000;\">12&#8243; 0 x 400m condensate export pipeline and 4&#8243; 0 MEG supply pipeline (piggyback for 12&#8243; 0 condensate export pipeline) from OGT to MCR\u00b7A.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The approximate number of joints for each pipeline to be laid is 33 joints. This is based on 12.2m average length. Table 1.2\u00b71 to Table 1.2\u00b78 on the following pages give the details of pipeline sequence<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SCOPE <\/strong><strong>&amp; <\/strong><strong>SEQUENCE OF WORK<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">SUBCONTRACTOR scope and work sequences for the beach pull are as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Site preparation at the Right of Way (ROW) location.<\/span><\/li>\n<li><span style=\"color: #000000;\">Transport linepipes and other appurtenances. Refer to:<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Document \u00a0 \u00a0SR-TKM-ENG-MCRA-OGT-P100 (Linepipes\u00a0\u00a0 \u00a0Transportation\u00a0\u00a0 \u00a0Study\u00a0\u00a0 \u00a0&#8211;\u00a0\u00a0 \u00a012&#8221; Condensate \u00a0Pipeline from MCR-A to OGT and 4&#8243; MEG \u00a0Pipeline Piggybacked)<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Document SR-TKM-ENG-MCRA-OGT-P200 (Linepipes Transportation Study &#8211; 26&#8243; Gas Pipeline from MCR-A to OGT)<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Document SR- TKM-ENG-OGT -SPM-P301 (Linepipes\u00a0 \u00a0Transportation\u00a0\u00a0 \u00a0Study\u00a0 \u00a0&#8211;\u00a0\u00a0 \u00a012&#8243; Condensate Export Pipeline OGT to\/from SPM)<\/span><\/li>\n<li><span style=\"color: #000000;\">Handling of linepipes, staking and storage prior to installation.<\/span><\/li>\n<li><span style=\"color: #000000;\">Construction of concrete anchor blocks at onshore.<\/span><\/li>\n<li><span style=\"color: #000000;\">Preparation and execution of the beach pull.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lay down pipelines at a designated \u00a0landing point \u00a0(approximately \u00a0120m from\u00a0 tie-in flanges at OGT).<\/span><\/li>\n<li><span style=\"color: #000000;\">Installation of the onshore pipelines from the landing point to the tie-in flanges\u00a0 at OGT complete with all associated civil works i.e. pipe supports, welding,\u00a0 NDT, Field \u00a0Joint Coating etc.<\/span><\/li>\n<li><span style=\"color: #000000;\">Site re-instatement.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The construction of temporary \u00a0rock berm, pre-trenching, \u00a0post-trenching and backfilling will be undertaken by CONTRACTOR using designated specialist subcontractors.<\/span><\/p>\n<p><span style=\"color: #000000;\">SUBCONTRACTOR will use Armada Installer barge to perform the beach pull operation. The barge will be positioned at approximately 400m from the landing point and the linepipes will be welded to a start-up head, pulled to the beach and towered to the seabed.<\/span><\/p>\n<p><span style=\"color: #000000;\">The pipelines will be pulled to the shore using one of the following options:<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong><u>Option 1:<\/u><\/strong><strong>\u00a0<\/strong>25MT \u00a0pulling winch with \u00a01 1\/2&#8243; 0 cable. The pulling winch \u00a0is anchored to the concrete anchor blocks at onshore.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong><u>Option <\/u><\/strong><u>2:<\/u>\u00a0 P5 anchor cable of 2.44&#8243; 0 of the DLB Armada Installer barge. A messenger cable of 1&#8243; 0 wire rope is connected to the P5 anchor cable at one end and the other end at the start-up head. The wire rope is snatched through 150MT snatch block anchored to the concrete anchor blocks at onshore.<\/span><\/p>\n<p><span style=\"color: #000000;\">Foam buoys will be attached to the pipe string to float the pipeline and minimize the pull and drag forces. After the pipeline has arrived at the targeted landing point and lowered to seabed, the pipelay process will resume until the end of the offshore section and subsequent pipelines installation will take place.<\/span><\/p>\n<p><span style=\"color: #000000;\">The site location is shown in Figure 1 .4-1<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INSTALLATION SUMMARY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><u>12&#8243; 0 x 400m condensate pipeline from OGT to SPM (North)<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Start Point Coordinate at Landing Point (KP0.114) E\u00a0 \u00a0650590.26 N 4449707. 11<\/span><\/p>\n<p><span style=\"color: #000000;\">End Point Coordinate at OGT (KP 0.00) E\u00a0 \u00a0650702.58 N 4449724.72<\/span><\/p>\n<p><span style=\"color: #000000;\">Max. Tension during Beach Pull \u00a0 10MT<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed \u00a0 \u00a02.5m<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>12&#8243; <\/u><u>0 x 400m condensate pipeline from OGT to SPM (South)<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Start Point Coordinate at Landing Point (KP0.114) E\u00a0 \u00a0650590.26 N 4449704.76<\/span><\/p>\n<p><span style=\"color: #000000;\">End Point Coordinate at OGT (KP 0.00) E\u00a0\u00a0\u00a0\u00a0 650702.73 N 4449723.23<\/span><\/p>\n<p><span style=\"color: #000000;\">Max. Tension during Beach Pull \u00a0 10MT<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed \u00a0 \u00a02.5m<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>26&#8243; <\/u><u>0 x 400m gas export pipeline from OGT to MCR-A<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Start Point Coordinate at Landing Point (KP 72. 952) E\u00a0 \u00a0650584.68 N 4449697.95<\/span><\/p>\n<p><span style=\"color: #000000;\">End Point Coordinate at OGT (KP 73.073) E\u00a0 \u00a0650702.89 N 4449719.22<\/span><\/p>\n<p><span style=\"color: #000000;\">Max. Tension during Beach Pull 12MT<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed 2m<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>12&#8243; <\/u><u>0 x 400m condensate export pipeline from OGT to MCR-A<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Start Point Coordinate at Landing Point (KP 72.987) \u00a0E\u00a0 \u00a0650584.73 N 4449701 .41<\/span><\/p>\n<p><span style=\"color: #000000;\">End Point Coordinate at OGT (KP 73.107) E\u00a0 \u00a0650702.63 N 4449721.71<\/span><\/p>\n<p><span style=\"color: #000000;\">Max. Tension during Beach Pull \u00a010MT<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed \u00a01.6m<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>4&#8243; 0 x 400m MEG supply pipeline (piggyback for 12&#8243; 0 condensate export pipeline) from OGT<\/u> <u>to MCR-A<\/u><\/span><\/p>\n<p><span style=\"color: #000000;\">Start Point Coordinate at Landing Point (KP 72.995) E\u00a0\u00a0\u00a0\u00a0 650584.73 N 4449701 .41<\/span><\/p>\n<p><span style=\"color: #000000;\">End Point Coordinate at OGT (KP 73.113) E \u00a0650707.43 N 4449721.27<\/span><\/p>\n<p><span style=\"color: #000000;\">Max. Tension during Beach Pull \u00a0 N\/A<\/span><\/p>\n<p><span style=\"color: #000000;\">Stinger Tip Clearance to Seabed \u00a0As per 12&#8243; x \u00a0400m\u00a0 \u00a0condensate \u00a0export pipeline from OGT to MCR<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>LOADOUT AND TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The \u00a0linepipes will be transferred to Turkmenistan \u00a0Block-1 Gas Development \u00a0Field using two \u00a0nos. 200ft class barge and two nos. 272ft class barge.<\/span><\/p>\n<p><span style=\"color: #000000;\">Upon \u00a0completion \u00a0of \u00a0each \u00a0loadout, \u00a0the \u00a0tiedown \u00a0and \u00a0seafastening \u00a0will \u00a0be carried \u00a0out \u00a0to \u00a0the satisfaction of CONTRACTOR and the appointed third party surveyors.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer\u00a0 to \u00a0the following \u00a0documents \u00a0for \u00a0further \u00a0details \u00a0on stowage \u00a0plan and other \u00a0related information.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Document \u00a0\u00a0 SR-TKM-ENG-MCRA-OGT-P106\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 (Loadout\u00a0\u00a0\u00a0 Coordination\u00a0\u00a0 Manual\u00a0\u00a0\u00a0 for\u00a0\u00a0\u00a0 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked)<\/span><\/li>\n<li><span style=\"color: #000000;\">Document \u00a0SR-TKM-OPR-MCRA-OGT-P207\u00a0 \u00a0(Loadout \u00a0Coordination \u00a0Manual \u00a0for \u00a026&#8243; \u00a0Gas Pipeline from MCR-A to OGT)<\/span><\/li>\n<li><span style=\"color: #000000;\">Document \u00a0\u00a0 SR-TKM-ENG-MCRA-OGT -P106\u00a0\u00a0\u00a0\u00a0\u00a0 (Loadout\u00a0\u00a0 Coordination\u00a0\u00a0\u00a0 Manual\u00a0\u00a0\u00a0 for\u00a0\u00a0\u00a0 12&#8243; Condensate Export Pipeline OGT to\/from MCR-A)<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>PRE-LOADOUT<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to loadout from the coating yard, inspection list included in the above documents will be reviewed and completed. Any areas of potential concern will be highlighted to CONTRACTOR.<\/span><\/p>\n<p><span style=\"color: #000000;\">Particular attention will be given to:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">End condition of linepipes.<\/span><\/li>\n<li><span style=\"color: #000000;\">Condition of linepipes coating.<\/span><\/li>\n<li><span style=\"color: #000000;\">Linepipes magnetic properties.<\/span><\/li>\n<li><span style=\"color: #000000;\">Concrete and anti-corrosion coating cutback.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>LOADOUT AND TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Loadout list for the linepipes barge for 2 x 12&#8243; dia. pipeline from OGT to SPM, \u00a026&#8243; dia.\u00a0 pipeline from MCR-A to OGT and 12&#8243; dia. pipeline and 4&#8243; dia. piggyback pipeline from MCR-A to OGT is shown in the documents as per Section 2.1 above. General arrangement and seafastening details for \u00a0loadout of the pipeline and \u00a0miscellaneous \u00a0items are also included in the above report.<\/span><\/p>\n<p><span style=\"color: #000000;\">A detailed review of all components \u00a0and materials \u00a0loaded out will be conducted and checked against the loadout list as described in the Loadout Coordination Manual. Any discrepancies in the quantity and conditions of the pipelines will be highlighted to CONTRACTOR representative and recorded prior to transfer of custody of the transportation barge to SUBCONTRACTOR. A loadout and tie-down arrangements of linepipe bays on the transportation barge are shown in Fig. 2.3\u00b71 to Figure 2.3-3 respectively.<\/span><\/p>\n<p><span style=\"color: #000000;\">Prior to departure of each transportation barge from the respective loadout location, a three (3) day weather outlook will be obtained from the Meteorological Service and forwarded to the tug boat captain for his further action. Shelter or safe tow route shall be identified and briefed to the Tug Master by the Marine Captain.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>LANDFALL SITE CONSTRUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The start-up head landing point is located on the ROW on the west side of OGT, approximately 114m to 126m from the first tie-in flange for permanent receiver facilities. The site has been extensively surveyed and marked to indicate the pipelines alignment prior to the work commencement. Refer to Figure 3.1\u00b71 and Figure 3.1\u00b72 for the details of the beach site layout.<\/span><\/p>\n<p><span style=\"color: #000000;\">To ensure the smooth flow of the work program and to avoid disruption, proper coordination between all authorities will be provided onsite. SUBCONTRACTOR with the assistance of CONTRACTOR shall be responsible for obtaining the necessary approval and permits for the access and construction work.<\/span><\/p>\n<p><span style=\"color: #000000;\">The construction site will be cordoned off to prevent unauthorized access and to provide a safety barrier to the public from the open excavations and construction.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPE PULL METHOD STATEMENT<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This document outlines the pipeline start-up utilizing one of the options as described in Section 1.4:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Prior to commencement of SUBCONTRACTOR&#8217;s work, the CONTRACTOR shall prepare and make ready the following \u00a0on the shore portion:<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Site preparation, clearing, levelling, compaction, etc. of the site.<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Trenching and rock berm<\/span><br \/>\n<span style=\"color: #000000;\"> &#8211; Fabrication and installation of concrete anchor blocks and concrete base for 25MT pulling<\/span><\/li>\n<li><span style=\"color: #000000;\">DLB Armada Installer barge will be anchored at approximately 400m offshore, with the stern facing the shore. The pipe string will be welded on the barge and pushed out onto the stinger. Floaters will be installed on the pipeline at the stern of the barge. The pipeline will be pulled to the shore using either a 25MT pulling winch attached to concrete anchor blocks on the shore, or via a 1&#8243; 0 cable snatched around a sheave block attached to the concrete anchor blocks and pulled in by the P5 anchor cable on the barge.<\/span><\/li>\n<li><span style=\"color: #000000;\">The pipe string is designed to be floating on the water surface with the floaters. Once the start-up head has reached the shore position, the floaters will be removed by pulling a strip out cable to rip out the steel straps on floaters. The floaters will be collected with shallow water boats.<\/span><\/li>\n<li><span style=\"color: #000000;\">To\u00a0 ensure \u00a0correct \u00a0lateral alignment \u00a0of \u00a0the \u00a0pipeline,\u00a0 appropriate \u00a0tension \u00a0assisted \u00a0with shallow water tug boats shall be used, depending on the actual site conditions.<\/span><\/li>\n<li><span style=\"color: #000000;\">Once the floaters are removed and pipeline is on seabed, normal pipelay may commence.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>SURVEY AND POSITIONING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The site has been surveyed by the CONTRACTOR&#8217;s survey subcontractor, and sufficient recovery marks have been placed to ensure the pipelines route through the beach crossing and tie-in to the OGT facility can be easily marked. Prior to starting work, the survey subcontractor will mark out, as a minimum, the followings:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Site boundary<\/span><\/li>\n<li><span style=\"color: #000000;\">Centre of pipeline o Excavation extents<\/span><\/li>\n<li><span style=\"color: #000000;\">Offset elevation and position benchmarks<\/span><\/li>\n<li><span style=\"color: #000000;\">OGT plant reference benchmarks<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Following establishment of these points, the Civil and Earthwork subcontractor will handle the daily survey activities. This will basically involve the transfer of level and shooting the alignments based on the established horizontal and vertical control benchmarks.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SITE PREPARATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The land equipment for the beach pull operation will be mobilized directly to the site. Once onsite, the excavators will clear the area and establish the site boundary, access road and erect the portable office cabins and containers.<\/span><\/p>\n<p><span style=\"color: #000000;\">Security guards will be provided at the temporary guardhouse and gate 24 hours. Only CONTRACTOR and SUBCONTRACTOR authorized personnel, equipments and materials are allowed access through the gate.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>EQUIPMENTS AND MATERIALS MOBILIZATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A partial inventory of necessary beach pull equipments and materials to be mobilized is as follows:<\/span><\/p>\n<p>&nbsp;<\/p>\n<table style=\"height: 2457px;\" width=\"808\">\n<tbody>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\"><strong>DESCRIPTION<\/strong><\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\"><strong>SIZE<\/strong><\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\"><strong>QUANTITY<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\"><strong>FOAM BUOYS<\/strong><\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Galvanised steel strap<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">0.6mm thickness x 19mm wide<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">5,600 m<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Galvanised overlap seal clip<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">0.6mm thickness x 19mm wide x 25mm long<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">2,400 pcs<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Wire rope sling<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">1&#8243; 0 x 1DOOm length, IWRC 6&#215;36 ungalvanized c\/w 2 ft soft eyes both ends mechanical \u00a0spliced<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">2 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Norwegian buoy<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">24&#8243; 0<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">8 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Plywood<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">12mm x 8&#8242; x 4&#8242;<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">200 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Heavy duty plastic wrap<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">20&#8243; x 800 ft per roll<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">88 rolls<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Polypropylene rope<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">1\/2&#8243; 0 x 200m<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">5 reels<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Shackle, Green Pin standard bow shackle with safety pin G-4163<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">12MT<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">4 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Closed spelter socket<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">1&#8243; 0<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">2 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\"><strong>BEACH \u00a0PULL ACTIVITIES<\/strong><\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Wire rope sling<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">1 <em>Y4&#8243; <\/em>0 x 15m length, IWRC 6&#215;36 ungalvanized c\/w 2ft soft eyes both ends mechanical spliced<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">6 length<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Snatch block 431 Crossby, shackle type, bronze bushed<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">30MT, to suit 1 1\/4&#8243; wire rope size<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">2 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Shackle, Green Pin standard bow shackle with safety pin<\/span><\/p>\n<p><span style=\"color: #000000;\">G-4163<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">25MT<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">8 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Wire rope sling<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">1 <em>W&#8217; <\/em>0 x 3m length, IWRC 6&#215;36 ungalvanized c\/w 2ft soft eyes both ends mechanical spliced<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">2 length<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Shackle, Green Pin standard bow shackle with safety pin G-4163<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">85MT<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">4 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Norwegian buoy<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">24&#8243; 0<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">4 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"222\"><span style=\"color: #000000;\">Heavy duty snatch block<\/span><\/td>\n<td width=\"270\"><span style=\"color: #000000;\">150MT<\/span><\/td>\n<td width=\"114\"><span style=\"color: #000000;\">3 nos<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<table style=\"height: 255px;\" width=\"806\">\n<tbody>\n<tr>\n<td width=\"223\"><span style=\"color: #000000;\">Shackle, Green Pin standard bow shackle with safety pin \u00a0G-6036<\/span><\/td>\n<td width=\"268\"><span style=\"color: #000000;\">150MT<\/span><\/td>\n<td width=\"116\"><span style=\"color: #000000;\">3 nos<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"223\"><span style=\"color: #000000;\">Polypropylene rope size<\/span><\/td>\n<td width=\"268\"><span style=\"color: #000000;\">1\u00a0\u00a0\u00a0 &#8220;0 x 200m<\/span><\/td>\n<td width=\"116\"><span style=\"color: #000000;\">3 reels<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\"><strong>TEMPORARY ROCK BERM<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A temporary rock berm will be constructed by CONTRACTOR. This rock berm will give access to the cranes during the trench excavation and beach pull operation. The final height of the rock berm will be approximately between 1.66m (min) to 2.66m (min). This is as shown in Figure 3.6-1.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>TRENCH EXCAVATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Soil from excavation of the trench shall be stockpiled to build the temporary rock berm. The details of the trench dredging works (by CONTRACTOR) are as shown in Figure 3.7-1 to Figure 3.7-6.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>CONCRETE ANCHOR BLOCKS CONSTRUCTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The construction of concrete anchor blocks will be undertaken by CONTRACTOR and the blocks will be installed on the west side of the tie-in position. The concrete blocks will provide anchoring points for the pulling of pipelines to the shore\u00a0 and also for the barge deadman anchor during beach pull. Refer to Figure 3.8-1 to Figure 3.8-3 for detail drawings and Appendix 3 for design calculation of the concrete anchor blocks.<\/span><\/p>\n<p><span style=\"color: #000000;\">The methodology for the concrete anchor blocks construction is described as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Surveyors will determine the accurate location for the concrete blocks After the site has been confirmed by the surveyors, excavate the area according to the pre\u00ad determined sizes as illustrated in Figure 3.8-2 and Figure 3.8-3.<\/span><\/li>\n<li><span style=\"color: #000000;\">Lift and set the concrete blocks in the excavated area using crawler<\/span><\/li>\n<li><span style=\"color: #000000;\">The concrete blocks will be backfilled until three-quarter full using the \u00a0previously excavated material and the ground is<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The details of the concrete anchor blocks location and the rigging arrangements are illustrated in Figure 3.8-4 to Figure 3.8-7.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>DLB ARMADA INSTALLER DEADMAN INSTALLATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">DLB Armada Installer will be positioned as close as possible to the beach in order to minimize the pipeline submerged weight. Hence the pulling force can be reduced with the assistance of foam buoys. Simultaneously this will provide barge stability during the beach pull.<\/span><\/p>\n<p><span style=\"color: #000000;\">The concrete anchor blocks for the Armada Installer deadman anchor will be installed at two locations as illustrated in Figure 3.8-6 and Figure 3.8-7. 55 and P4 anchor cables of the barge will be connected to those concrete blocks in which they will provide shore anchoring for the Armada Installer during beach approaching.<\/span><\/p>\n<p><span style=\"color: #000000;\">The followings \u00a0are step-by-step \u00a0procedure for \u00a0connecting\u00a0 55 and\u00a0 P4 anchor \u00a0cables \u00a0to the concrete blocks:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">A 25MT pulling winch is positioned in line with the temporary rock<\/span><\/li>\n<li><span style=\"color: #000000;\">1&#8243; 0 polypropylene rope is connected to the 1 h&#8221; 0 pulling winch<\/span><\/li>\n<li><span style=\"color: #000000;\">A fishing boat will be deployed to take up the end of the polypropylene<\/span><\/li>\n<li><span style=\"color: #000000;\">The fishing boat will then carry the polypropylene rope towards DLB Armada This is to be done slowly to prevent the pulling winch cable from tangling up on the beach. Personnel onshore will assist to pay out the cable to prevent the entanglement.<\/span><\/li>\n<li><span style=\"color: #000000;\">When the fishing boat has been arrived at the barge, the pulling winch cable will be transferred and connected to the 55 <em>I <\/em>P4 anchor<\/span><\/li>\n<li><span style=\"color: #000000;\">The 25MT pulling winch will haul in to pull the 55 <em>I <\/em>P4 anchor cable to the The barge crew will assist to pay out the cable on the 55 <em>I <\/em>P4 anchor winch to prevent excessive cable dumping onto the seabed that would otherwise increase the drag and pulling forces. Large Norwegian buoys shall be attached to the anchor cable to provide additional buoyancy.<\/span><\/li>\n<li><span style=\"color: #000000;\">When the connection point between the 55 <em>I <\/em>P4 anchor cable and the 1 <em>Y,&#8221; <\/em>0 pulling winch cable approaches the shore, a crawler crane will pick up the connection point and transfer it onto the rock<\/span><\/li>\n<li><span style=\"color: #000000;\">The 1 <em>y,&#8221; <\/em>0 pulling winch cable will be unconnected from the connection point and then the 55 <em>I <\/em>P4 anchor cable is connected to a pre-installed 4&#8243; 0 polypropylene rope to the concrete anchor<\/span><\/li>\n<li><span style=\"color: #000000;\">After the connection between the 55 <em>I <\/em>P4 anchor cable and the 4&#8243; 0 polypropylene rope is secured, the connection point is transferred from the rock berm into the water using the crawler<\/span><\/li>\n<li><span style=\"color: #000000;\">The 55 <em>I <\/em>P4 anchor winch will be spooled in to take up tension between the 55 <em>I <\/em>P4 anchor cable and the 4&#8243; 0 polypropylene<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The above procedure is illustrated in Figure 3.9-1.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BEACH PULL PROCEDURE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>GENERAL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This section describes the methodology of the beach pull operation for all\u00a0 pipelines. DLB Armada Installer barge will be positioned at 400m from the shore. However site conditions may dictate the final position of the barge prior to the pipe pulling.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>SURVEY AND POSITIONING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A DGPS based survey system will be used to determine the final position of the barge prior to the commencement of pipe pulling. The barge will be set-up with the centreline of pipe tunnel in line with the pipeline route, which is parallel to the rock berm.<\/span><\/p>\n<p><span style=\"color: #000000;\">When the barge has arrived at the specified location, a land-based theodolite may be used to observe the barge position relative to the centreline of the pipeline route, if required. Minor deviation in the heading and position may be expected and adjustment will be made to ensure the pipeline will be in the correct alignment.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BARGE SET-UP AND ANCHOR MOVES<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">This section details out the beach pull start-up operation for the following pipelines: <\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">12&#8243; 0 x 400m condensate pipeline from OGT to SPM (North).<\/span><\/li>\n<li><span style=\"color: #000000;\">12&#8243; 0 x 400m condensate pipeline from OGT to SPM (South).<\/span><\/li>\n<li><span style=\"color: #000000;\">26&#8243; 0 x 400m gas export pipeline from OGT to MCR\u00b7A.<\/span><\/li>\n<li><span style=\"color: #000000;\">12&#8243; 0 x 400m condensate export pipeline and 4&#8243; 0 MEG supply pipeline (piggyback for 12&#8243; 0 condensate export pipeline) from OGT to MCR\u00b7A.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The start-up activities are listed below:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Upon DLB Armada Installer arrival at the proposed location, set-up barge as per anchor pattern in Figure 3\u00b71. Tension test shall be carried out for all anchor winches before setting up the barge at location.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Safety Note: SUBCONTRACTOR Marine Captain (MC) and Offshore Construction Superintendent \u00a0(OCS) to ensure proper coordination and communication between anchor \u00a0handling tugs and main work barge during anchor \u00a0handling activities and ensure all survey \u00a0and positioning equipment \u00a0in working condition and calibrated. \u00a0Reference for \u00a0anchor \u00a0positioning shall be made to the approved anchor patterns and pre-lay survey reports by SUBCONTRACTOR. \u00a0Limiting weather criteria specifications for all activities will be at SUBCONTRACTOR&#8217;s OCS discretion and governed by COMPANY&#8217;s marine guidelines \u00a0of \u00a0permitted \u00a0operations.<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">At the end of Position 3 of anchor set-up in 4.3-1, bring alongside pipe haul barge on portside and transfer linepipes to the pipe rack and barge deck.<\/span><\/li>\n<li><span style=\"color: #000000;\">Insert internal line-up clamp into the first pipe joint and commence welding the pipe until the first joint reaches Station 7. Stop trolley, x-ray crawler and reach rod should be inserted inside the pipes after 7 joints have been welded. Refer to Document No. SR-TKM\u00ad WLD-GEN-01, Welding Procedure Specification.<\/span><\/li>\n<li><span style=\"color: #000000;\">Reposition the barge at start-up However the actual position of the barge will be determined on site base on surveyor&#8217;s DGPS positioning.<\/span><\/li>\n<li><span style=\"color: #000000;\">Continue welding until the start-up head and half joint is protruding on the stringer<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">Note: Double check on all valve systems with zero leak tolerance. Ensure ball valves at start-up head is in closed position.<\/span><\/p>\n<p><span style=\"color: #000000;\">The anchor patterns for the final position of DLB Armada Installer during beach pull using either Option 1 or Option 2 are as shown in Figure 4.3-2. These anchor patterns may be revised as required to suit prevailing conditions. The final anchor patterns are subjected to the discretion of SUBCONTRACTOR&#8217;d Marine Captain (MC) and Offshore Construction Superintendent (OCS), with approval from CONTRACTOR.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PREPARATION FOR PIPE PULL<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">After the final position of the barge has been confirmed by the surveyors, the following preparatory works will take place:<\/span><\/p>\n<p><span style=\"color: #000000;\">1) Pipeline String<\/span><\/p>\n<p><span style=\"color: #000000;\">The start-up head and beach pull section of the pipeline will be welded out in the pipe tunnel, radiographed, field joint wrapped with anti corrosion coating and filled with polyurethane materials.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Figure 4.4-1 to Figure 4.4-4 for the start-up head details of 12&#8243; 0 OGT to SPM, 26&#8243; 0, 12&#8243; 0 MCR-A to OGT and 4&#8243; pipelines respectively.<\/span><\/p>\n<p><span style=\"color: #000000;\">2) Attachment and Preparation of Pulling Cable<\/span><\/p>\n<p><span style=\"color: #000000;\">The pulling cable will be attached to the start up head. This can be performed at the stern of the barge or at the end of stinger, Refer to Section 4.5 for details.<\/span><\/p>\n<p><span style=\"color: #000000;\">3) Stinger<\/span><\/p>\n<p><span style=\"color: #000000;\">The stinger will be ballasted according to the profiles given in Table 4.4 1, in preparation of pipe pulling,<\/span><\/p>\n<table style=\"height: 586px;\" width=\"802\">\n<tbody>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">NO<\/span><\/td>\n<td width=\"332\"><span style=\"color: #000000;\">PIPELINE<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">BER ELEVATION FROM SEABED (m)<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td rowspan=\"2\" width=\"332\"><span style=\"color: #000000;\">2 x 12&#8243; Ql condensate pipeline from OGT to SPM<\/span><\/td>\n<td rowspan=\"2\" width=\"129\"><span style=\"color: #000000;\">4.17<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">1<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"332\"><span style=\"color: #000000;\">26&#8243; Ql gas export pipeline from OGT to MCR A<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">4,17<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"332\"><span style=\"color: #000000;\">12&#8243; Ql condensate export pipeline and 4&#8243; 0 MEG supply pipeline (piggyback for 12&#8243; Ql condensate export pipeline) from OGT to MCR A<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">4.17<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\">4) Foam Buoys<\/span><\/p>\n<p><span style=\"color: #000000;\">To maintain the anticipated pull force within \u00a0acceptable \u00a0limit, additional \u00a0buoyancy \u00a0will be provided to the pipeline using foam buoys installed at the stern of the barge using banding straps and clips The first floatation buoy to be attached is close to the start up head. The buoy size and numbers are given in Table 4.4 2.<\/span><\/p>\n<p><span style=\"color: #000000;\">Strip out cable shall be installed at the same time the buoys are installed (see details in Section 4.6).<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Appendix 4 and Appendix 5 for the pulling force calculation for all pipelines and the foam buoy design respectively.<\/span><\/p>\n<table style=\"height: 334px;\" width=\"810\">\n<tbody>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">NO<\/span><\/td>\n<td width=\"292\"><span style=\"color: #000000;\">PIPELINE<\/span><\/td>\n<td width=\"91\"><span style=\"color: #000000;\">BUOY SIZE(m)<\/span><\/td>\n<td width=\"78\"><span style=\"color: #000000;\">NO. OF BUOY\/PIPE JOINT<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"292\"><span style=\"color: #000000;\">2 x 12&#8221; 0 condensate pipeline from OGT to SPM<\/span><\/td>\n<td width=\"91\"><span style=\"color: #000000;\">1 X 0.85 X \u00a02.5<\/span><\/td>\n<td width=\"78\"><span style=\"color: #000000;\">2<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<td rowspan=\"2\" width=\"292\"><span style=\"color: #000000;\">26&#8243; 0 gas export pipeline from OGT to MCR\u00b7A<\/span><\/td>\n<td rowspan=\"2\" width=\"91\"><span style=\"color: #000000;\">1x1x2.5<\/span><\/td>\n<td rowspan=\"2\" width=\"78\"><span style=\"color: #000000;\">3<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\">&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">3<\/span><\/td>\n<td rowspan=\"2\" width=\"292\"><span style=\"color: #000000;\">12&#8243; 0 condensate export pipeline and 4&#8243; 0 MEG supply pipeline (piggyback for 12&#8243; 0 condensate\u00a0export pipeline) from OGT to MCR\u00b7A<\/span><\/td>\n<td rowspan=\"2\" width=\"91\"><span style=\"color: #000000;\">1 X 0.85 X \u00a02.5<\/span><\/td>\n<td rowspan=\"2\" width=\"78\"><span style=\"color: #000000;\">3<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"51\"><span style=\"color: #000000;\">\u00a0<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><span style=\"color: #000000;\">BEACH PULL CABLE ATTACHMENT<\/span><\/p>\n<p><span style=\"color: #000000;\">The \u00a0followings \u00a0are\u00a0 step-by-step \u00a0procedure \u00a0for connecting the \u00a0pulling cable\u00a0 to \u00a0the start-up head.<\/span><\/p>\n<p><span style=\"color: #000000;\">Option 1<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">A 25MT pulling winch is positioned in front of the concrete anchor<\/span><\/li>\n<li><span style=\"color: #000000;\">1&#8243; 0 polypropylene rope is connected to the 1 <em>Yz&#8221; <\/em>0 pulling winch<\/span><\/li>\n<li><span style=\"color: #000000;\">A shallow water boat will be deployed to take up the end of the polypropylene<\/span><\/li>\n<li><span style=\"color: #000000;\">The boat will then carry the polypropylene rope towards DLB Armada This is to be done slowly \u00a0to \u00a0prevent \u00a0the \u00a0pulling winch \u00a0cable \u00a0from \u00a0tangling \u00a0up \u00a0on \u00a0the \u00a0beach. Personnel onshore will assist to pay out the cable to prevent the entanglement.<\/span><\/li>\n<li><span style=\"color: #000000;\">When the boat has arrived at the barge, the pulling winch cable will be transferred and connected to the start-up<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The above procedure is illustrated in Figure 4.5-1. Option 2<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Connect 1&#8243; 0 wire rope to the start-up<\/span><\/li>\n<li><span style=\"color: #000000;\">Transfer the wire rope to a shallow water boat near the stinger, which in turn will carry the wire rope to the shore and eventually connected to the concrete anchor blocks through a 150MT snatch If necessary, use a 1&#8243; 0 polypropylene rope as a messenger to bring the 1&#8243; 0 wire rope to the beach.<\/span><\/li>\n<li><span style=\"color: #000000;\">After going through the snatch block, the boat will take up the wire rope again and carry it towards DLB Armada<\/span><\/li>\n<li><span style=\"color: #000000;\">Simultaneously, an AHT boat will take up the P5 anchor cable from the lay barge and carry it towards the The barge crew will assist to pay out the cable on the P5 anchor winch to prevent excessive cable dumping onto the seabed that would otherwise increase the drag and pulling forces. Large Norwegian buoys shall be attached to the anchor cable to provide additional buoyancy.<\/span><\/li>\n<li><span style=\"color: #000000;\">When the AHT boat and fishing boat are side-by-side, the 1&#8243; 0 wire rope will be connected to the P5 anchor<\/span><\/li>\n<li><span style=\"color: #000000;\">The P5 anchor winch will be spooled in to take up tension in the anchor<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The above procedure is illustrated in Figure 4.5-2. Figure 4.5-3 shows the final start-up head rigging arrangement prior to the start of beach pull operation.<\/span><\/p>\n<p><span style=\"color: #000000;\">The beach pull operation will be controlled from DLB Armada\u00a0 Installer with communication to the onshore crew. Each pull will be initiated by the completion of welding, NDT and Field Joint Coating activities in the pipe tunnel.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>FOAM BUOYS AND STRIP-OUT CABLE INSTALLATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Low Density Closed Cell Polyurethane Foam buoys will be used to reduce the submerged weight of the pipeline during the beach pull. These buoys will be connected to the top of pipeline using steel banding straps and sealed with clips. A 1&#8243; 0 wire rope strip-out cable will be pre\u00ad installed through\u00a0 all banding straps during the installation. The starting end of the strip-out cable will be spooled to a 5T air tugger located on top of the pipe tunnel at the stern of the barge, while the other end is shackled to a padeye on the start-up head. When being pulled, the strip-out cable will break the banding straps and release the buoys from the pipe string. The buoys will subsequently be recovered and returned to the lay barge. Refer to Figure 4.6-1 to Figure 4.6-4 for the installation method and Appendix 6 for the Product Datasheet of the Low Density Closed Cell Polyurethane Foam.<\/span><\/p>\n<p><span style=\"color: #000000;\">The foam buoys attached to the pipe string will be tied together in a train to ensure that they do not float away uncontrollably following the strip-out. Each of the two adjacent buoys in the train will be tied-up using polypropylene rope.<\/span><\/p>\n<p><span style=\"color: #000000;\">Each buoy in the train will be given a unique tag number to ensure all the buoys are accounted for following the strip-out process.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>BEACH PULL ACTIVITIES<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The following is a step-by-step procedure for performing the beach pull activity using either Option 1 or Option 2. At this point, the pipe string will be secured in the tensioners and set in a brake condition.<\/span><\/p>\n<p><span style=\"color: #000000;\"><u>Option 1<\/u><\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">The tensioners are adjusted slowly to match the beach pull tension, while the 25MT pulling winch takes up the slack and tension up the 1 <em>W&#8217; <\/em>0 wire Refer to Table 4.7\u00b71 for the <strong>tension required.<\/strong><\/span><\/li>\n<li><span style=\"color: #000000;\">When the appropriate tension has been reached, the tensioners brakes are \u00a0released and the \u00a0pipes \u00a0are \u00a0allowed \u00a0to \u00a0pay \u00a0This \u00a0can \u00a0be \u00a0done \u00a0in \u00a0a \u00a0manual \u00a0or \u00a0automatic \u00a0mode.<\/span><br \/>\n<span style=\"color: #000000;\">Note: When the tensioners brakes are released to pay out the pipeline, make sure the tension on the 25MT pulling winch is adequate to pull \u00a0the \u00a0pipeline \u00a0out. \u00a0Otherwise \u00a0the tensioners \u00a0may haul-in the pipeline instead.<\/span><\/li>\n<li><span style=\"color: #000000;\">When one joint has been pulled towards the beach, the brakes are set on the tensioners and the pipeline is<\/span><\/li>\n<li><span style=\"color: #000000;\">One joint will be added up at <em>the <\/em>line up station and various activities at the other stations will proceed<\/span><\/li>\n<li><span style=\"color: #000000;\">When the pipe tunnel activities have <em>been <\/em>completed, the brake is released and the pipe string is started to <em>be <\/em>pulled away the lay barge towards <em>the beach<\/em><\/span><\/li>\n<li><span style=\"color: #000000;\">The above sequences are repeated until the pipeline reaches the<\/span><br \/>\n<span style=\"color: #000000;\">Note: During pipe pulling, to ensure the pipeline is in the correct route, a STair tugger may be placed on the shore for the purpose of pipeline alignment.<\/span><\/li>\n<\/ul>\n<table style=\"height: 525px;\" width=\"807\">\n<tbody>\n<tr>\n<td width=\"42\"><span style=\"color: #000000;\">NO<\/span><\/td>\n<td width=\"248\"><span style=\"color: #000000;\">PIPELINE<\/span><\/td>\n<td width=\"124\"><span style=\"color: #000000;\">MIN. TENSION \u00a0(MT) NO CURRENT<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">MAX. TENSION (MT) 1 KNOT CURRENT<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"42\"><span style=\"color: #000000;\">1<\/span><\/td>\n<td width=\"248\"><span style=\"color: #000000;\">2 x 12&#8243; 0 condensate pipeline from OGT to SPM<\/span><\/td>\n<td width=\"124\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">10<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"42\"><span style=\"color: #000000;\">2<\/span><\/td>\n<td width=\"248\"><span style=\"color: #000000;\">26&#8243; 0 gas export pipeline from OGT to MCR A<\/span><\/td>\n<td width=\"124\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">12<\/span><\/td>\n<\/tr>\n<tr>\n<td width=\"42\"><span style=\"color: #000000;\">3<\/span><\/td>\n<td width=\"248\"><span style=\"color: #000000;\">12&#8243; 0 condensate export pipeline and 4&#8243; 0 MEG supply pipeline (piggyback for 12&#8243; 0 condensate export pipeline) from OGT to MCR A<\/span><\/td>\n<td width=\"124\"><span style=\"color: #000000;\">10<\/span><\/td>\n<td width=\"129\"><span style=\"color: #000000;\">10<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #000000;\">Option 2<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">The tension on the P5 anchor winch is increased slowly to match the beach pull tension as shown in Table 7-1.<\/span><\/li>\n<li><span style=\"color: #000000;\">When the appropriate tension has been reached, the tensioners brakes are released and the pipes are allowed to pay This can be done in a manual or automatic mode.<\/span><\/li>\n<li><span style=\"color: #000000;\">When one joint has been pulled towards the beach, the brakes are set on the tensioners and the pipeline is<\/span><\/li>\n<li><span style=\"color: #000000;\">One joint will be added up at the line up station and various activities at the other stations will proceed<\/span><\/li>\n<li><span style=\"color: #000000;\">When the pipe tunnel activities have been completed, the brake is released and the pipe string is started to be pulled away the lay barge towards the beach<\/span><\/li>\n<li><span style=\"color: #000000;\">The above sequences are repeated until the pipeline reaches the shore<\/span><br \/>\n<span style=\"color: #000000;\">Note: During pipe pulling, \u00a0to ensure the \u00a0pipeline is in the correct \u00a0route, a \u00a05T air tugger \u00a0may be placed on the shore for \u00a0the purpose of pipeline alignment.<\/span><\/li>\n<li><span style=\"color: #000000;\">Note that the pull force may increase as more pipes are being paid An increase in the constant tension setting on the anchor winch may be required. However the \u00a0pipeline tension should be maintained at the tensioners according to Table 4.7-1.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">When the start-up head approaches the shore, the crawler cranes parked on the rock berm will be positioned to lift the start-head up onto the designated landing point. This is as shown in Figure 4.7-1 to Figure 4.7-7.<\/span><\/p>\n<p><span style=\"color: #000000;\">When the start-up head reaches the end of the pull, a strict coordination between the beach and barge crews will be required to stop the pull operation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>STRIPPING OUT THE FOAM BUOYS<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Upon completion of the beach pull operation and a confirmation that\u00a0 the pipeline is in the correct route, the foam buoys along the pipe string will be removed and recovered by stripping out the banding straps holding the buoys to the pipeline. This activity will be carried out using the 5MT tugger. By pulling up the 1&#8243; 0 strip-out cable, a force will be applied to each band, causing it to break. The followings are step-by\u00b7step procedure for this activity:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">The tensioners will be placed in a brake set condition to anticipate a higher pull force when the buoys are being stripped<\/span><\/li>\n<li><span style=\"color: #000000;\">On the lay barge, the tugger begins to haul-in the strip-out cable and this will cause the banding straps to start<\/span><\/li>\n<li><span style=\"color: #000000;\">The hauling in action of the tugger will strip&#8221;out the buoys from the start&#8221;UP head section of the When the strip&#8221;out process is complete, the strip-out cable can be recovered to the barge. The banding straps should remain fastened to the cable.<\/span><\/li>\n<li><span style=\"color: #000000;\">The shallow draft tugboat can then be deployed to pick up the foam buoys The tag number on each of the buoy shall be recorded to ensure that all the buoys are removed and recovered.<\/span><br \/>\n<span style=\"color: #000000;\">Notes: As a contingency \u00a0measure, \u00a0divers \u00a0with \u00a0SCUBA \u00a0replacement \u00a0equipments \u00a0can also be &#8216;\u00a0\u00a0\u00a0\u00a0 deployed to cut the bands manually and retrieve the blocks.<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>BEACH PULL COMPLETION ACTIVITIES<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">When \u00a0the\u00a0 foam \u00a0buoys \u00a0and strip-out \u00a0cable \u00a0have \u00a0been \u00a0retrieved, \u00a0the \u00a0beach \u00a0cable \u00a0can \u00a0be recovered for the lay barge to proceed with regular pipe lay.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPE HANDLING, STACKING AND STORAGE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>MATERIAL DELIVERY<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Free issued line pipes of approximately 8 joints for each pipeline will be delivered to the site from a storage area in Kiyanly. Other free issued materials, for example, the pipeline bends and flanges will also be delivered in the same manner.<\/span><\/p>\n<p><span style=\"color: #000000;\">COMPANY&#8217;s supplied materials are as shown in Table 5.1\u00b71 to Figure 5.1-4.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INSPECTION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A joint inspection between SUBCONTRACTOR, CONTRACTOR and COMPANY will be carried out at the stringing locations on site. Refer to the following \u00a0documents \u00a0for \u00a0further \u00a0details \u00a0on loadout \u00a0plan \u00a0and \u00a0other \u00a0related \u00a0information:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Document SR-TKM-ENG-MCRA\u00b7OGT-P106\u00a0 (Loadout\u00a0\u00a0 Coordination\u00a0\u00a0 \u00a0Manual\u00a0 \u00a0for\u00a0 12&#8243; Condensate Pipeline from MCR-A to OGT and 4&#8243; MEG Pipeline Piggybacked)<\/span><\/li>\n<li><span style=\"color: #000000;\">Document \u00a0 \u00a0SR-TKM-OPR-MCRA\u00b7OGT -P207\u00a0 \u00a0(Loadout \u00a0Coordination\u00a0 \u00a0Manual \u00a0for\u00a0 \u00a026&#8243; \u00a0Gas Pipeline from MCR-A\u00a0 to OGT)<\/span><\/li>\n<li><span style=\"color: #000000;\">Document SR-TKM-ENG\u00b7MCRA\u00b7OGT-P106\u00a0 (Loadout\u00a0\u00a0\u00a0 Coordination\u00a0\u00a0 \u00a0Manual\u00a0 \u00a0for 12&#8243; Condensate Export Pipeline OGT to\/from MCR-A)<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\">The purpose of the inspection is to check the line pipe conditions before and after deliveries. After checking, the inspection reports need to be signed off by all parties. The same procedure goes to the other free issued materials, such as\u00a0 under and above ground pipe bends and materials for corrosion insulation.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPE TRANSPORTATION<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Line pipes will be delivered\u00a0 to the site using low loader trucks. CONTRACTOR will provide SUBCONTRACTOR with the delivery schedule. Therefore the pipe delivery, stringing and fit-up works can be coordinated effectively.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>UNLOADING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">A crane will be used to unload the line pipes piece by piece, using lifting belts. A reasonably sizeable crane is required for stability during movement. This unloading process is as shown in Figure 5.4\u00b71 and Figure 5.4-2.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>STORAGE AND STACKING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">All line pipes will be stored in-line along ROW. Sandbag or timber will\u00a0 be used\u00a0 to protect \u00a0the line pipes from a direct contact with \u00a0the ground.<\/span><\/p>\n<p><span style=\"color: #000000;\">If \u00a0necessary,\u00a0 \u00a0line \u00a0pipes \u00a0will \u00a0be \u00a0stored \u00a0near \u00a0the \u00a0dedicated \u00a0storage \u00a0area \u00a0without \u00a0the \u00a0need \u00a0of stacking up the pipes.<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>PIPE STRINGING<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INSTALLATION SEQUENCE<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Stringing of pipes will be started upon completion of beach pull. Pipeline stringing will be carried out at the proposed ROW which is next to the temporary storage area outside OGT This is as shown in Figure 6 1 1 to Figure 6.1 5. The line pipes will be laid onto the ground on a piece by piece basis Where necessary, protection against yard applied corrosion coatings and bare pipe damage by sandbags will be done especially on hard or slopping grounds.<\/span><\/p>\n<p><span style=\"color: #000000;\">Refer to Figure 6 1 6 and Figure 6 1 7 for the anode installation details starting from the start up head landing point to the tie in valve<\/span><\/p>\n<p><span style=\"color: #000000;\"><strong>INSTALLATION OF PIPE AT AN OPEN TRENCH<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">The installation steps are as follows:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">The line pipes will be prewelded to two joints<\/span><\/li>\n<li><span style=\"color: #000000;\">Upon completion and acceptance of NDT and Field Joint Coating, the line pipes will be rig up onto a crane and gradually lowered onto the open trench Timber blocks will be put at each end of the line pipes in the trench to support the pipeline and to facilitate the removal of lifting belts This is as shown in Figure 2 1.<\/span><\/li>\n<li><span style=\"color: #000000;\">Fit up for tie in weld will be commenced<\/span><\/li>\n<li><span style=\"color: #000000;\">Upon acceptance of the fit up inspection, the welding activity for the joint will<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong> WELD, NDT AND WELD REPAIR<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">An externalline up clamp will be used to line up the line pipes The seam pipe will be supplied with a pre bevelled to 30 degree. All completed welds shall be subjected to 100% radiograph Project specification NDT procedure is detailed in the following documents:<\/span><\/p>\n<ul>\n<li><span style=\"color: #000000;\">Document No SR TKM NDT GEN 06 \u00a0(Provisions of General NDT Procedure for Pipelines (26&#8243; OD <em>I <\/em>12&#8243; OD <em>I <\/em>4&#8243; Piggyback)<\/span><\/li>\n<li><span style=\"color: #000000;\">Document No. SR TKM WLD GEN-01 \u00a0(Welding Procedure Specification)<\/span><\/li>\n<\/ul>\n<p><span style=\"color: #000000;\"><strong>FIELD JOINT COATING AND REPAIR<\/strong><\/span><\/p>\n<p><span style=\"color: #000000;\">Project specification Field Joint Coating procedure is detailed in the following document:<\/span><\/p>\n<p><span style=\"color: #000000;\">i) Document \u00a0No. \u00a0SR-TKM-OPR-GEN-10 (Field\u00a0 \u00a0Joint\u00a0\u00a0 \u00a0Coating, lnfill\u00a0 \u00a0and\u00a0 \u00a0Coating\u00a0\u00a0 \u00a0Repair Procedure)<\/span><\/p>\n<p><span style=\"color: #000000;\">The pipeline coating details are as shown in Figure 6.4-1 and Figure 6.4-2.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; COMPANY: Sigur Ros Turkmenistan\u00a0 PROJECT TITLE: Petronas Turkmenistan Block 1 Gas Development Project\u00a0 CLIENT:\u00a0PETRONAS\u00a0Turkmenistan LOCATION:\u00a0Turkmenistan YEAR: 2009-2011 VESSEL: Derrick Lay Barge (DLB) Armada Installer SCOPE OF WORK:\u00a0 &nbsp; SUBCONTRACTOR &hellip; <a class=\"readmore\" href=\"https:\/\/alfanso10.com\/?p=117\">Continue Reading \u2192<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"_links":{"self":[{"href":"https:\/\/alfanso10.com\/index.php?rest_route=\/wp\/v2\/posts\/117"}],"collection":[{"href":"https:\/\/alfanso10.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/alfanso10.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/alfanso10.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/alfanso10.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=117"}],"version-history":[{"count":20,"href":"https:\/\/alfanso10.com\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions"}],"predecessor-version":[{"id":1469,"href":"https:\/\/alfanso10.com\/index.php?rest_route=\/wp\/v2\/posts\/117\/revisions\/1469"}],"wp:attachment":[{"href":"https:\/\/alfanso10.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=117"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/alfanso10.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=117"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/alfanso10.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=117"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}