West Qurna Field 2ndPhase Project (Early Oil Phase) DOC. TITLE DOC. NO. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 1 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. SO2476 Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) 00 17.SEP.2013 APPROVED FOR USE M. V. BALILO H. S. AN S. K. SONG K. T. KIM C 5.AUG.2013 ISSUED FOR APPROVAL M. V. BALILO H. S. AN S. K. SONG K. T. KIM B 11.JUL.2013 ISSUED FOR REVIEW M. V. BALILO H. S. AN S. K. SONG K. T. KIM REV. DATE STATUS PREPARED BY CHECKED BY APPROVED BY AUTHORIZED BY This document, including any patented or patentable features, embodies confidential information of Samsung Engineering Co., Ltd. and its use is conditioned upon the user’s agreement not to reproduce the document in whole or in part, nor the material described thereon, nor to use the document for any purpose other than specifically permitted in writing by Samsung Engineering Co., Ltd. Samsung Engineering Co., Ltd West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. TITLE DOC. NO. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 2 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. SO2476 REVISION LIST REV. NO. DATE MADE BY PAGE NO. DESCRIPTION B 11.JULY 2013 M.V.BALILO ALL Issued for Review C 5.AUG 2013 M.V.BALILO Marked in specification 1. Added Blinds List/Removed Item List in Appendix 2. Added Temporary Pressure Gauge List in Appendix 3. Added “Protection of devices…” in Section 6.2. 4. Added sub-system information for each package in Section 7.2 table and Appendix 5. Added hold-up time (10 min) for final test pressure in Section 7.2 6. Added information/details on marked-up P&ID 7. Added “…& disconnect temporary hose”, “repeat test” and reinstate package as per P&ID” in Section 7.3 8. Added testing boundary and equipment/associated pipings for each package Issued for Approval 00 17.SEP 2013 M.V.BALILO Approved for Use Note: 1. Revision part of document is easily identified by drawing a vertical line on the right margin and applied revision number. Also revision part of document will be written in bold. 2. Revision number shall be identified as following: Class Revision Number Revision code A B,C, -W Issue status IDC IFA, IFR, IFI, IFE, IFD 00, 01... AFC, AFP, AFU Z X1, … CAN AB Revision description Issued for Discipline Check Issued for Approval Issued for Review Issued for Information Issued for Enquiry Issued for Design Approved for Construction Approved for Procurement Approved for Use Cancelled As-Built Samsung Engineering Co., Ltd ACCEPTANCE CRITERIA 23 9. LEGEND OF SYMBOLS 25 APPENDIX I. NO. SCOPE 4 3. TEMPORARY PRESSURE GAUGE LIST Samsung Engineering Co. Ltd . DETAILED METHOD 6 8. CHECK SHEET 24 10. LEAK TEST PACKAGE MARKED UP P&ID'S L1-105-001 ~ L1-105-006 (6 Packages) L2-105-001 ~ L2-105-009 (9 Packages) APPENDIX III. SO2476 DOC. SYSTEM BASED GROSS AIR LEAK TEST PACKAGE LIST APPENDIX II. REQUIRED EQUIPMENT & TOOLS 5 6 SAFETY PRECAUTIONS 6 7. ROLES & RESPONSIBILITIES 5 5. INDEX Page 1. REFERENCE DOCUMENTS 4 4. 3 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC.. BLINDS LIST APPENDIX IV. OBJECTIVE 4 2. TITLE Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. SCOPE 2. 2.1. miscellaneous connections such as vents. 4 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. TITLE DOC. instruments.2. which may have been previously dismantled for any reason. This method statement covers the gross air leak test using dry air for the system below : System: WU105-01 / WU105-02 (Well Pad # 5) 3. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. valves packing. Pre-commissioning and Mechanical Completion Execution Plan (8015-0151-SECL00-000-CO-PE-00001) Tightness Test Procedure (8015-0151-SECL-00-000-CO-PP-00009) API STD 521 (Guide for Pressure-Relieving & Depressurizing Systems) ASME B31. While the pressure tests are carried out on spools during construction in order to verify the integrity of welds and material. SO2476 1. has been correctly reinstalled.3 (Process Piping) ASME BPVC Section V (Leak Testing) Operation & Maintenance Manual Basic Engineering Design data Process Description Blinds List/Removed Item List Temporary Pressure Gauge List Samsung Engineering Co. Ltd . - Joints which temporary piping had been connected with. - Gross air leak tests must also establish that any equipment associated with the system. REFERENCE DOCUMENTS 3. after flushing and cleaning operations and completion of the installation to prove the integrity of the permanent parts such as: - Gaskets and other flange joints. the gross air leak tests are carried out on entire systems. drains. NO. This method statement shall be applied only to the West Qurna Field 2nd phase project 2.1. safety valves.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. OBJECTIVE The purpose of this procedure is to define all the activities which are performed to ensure the tightness of plant piping and equipment. connections between systems being tested.. reporting HSE inactions.2 Supervisors shall be directly responsible for the monitoring the activities on field and utilizing the resources. 5 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. 5. REQUIRED EQUIPMENT & TOOLS 5. Tools Personnel safety working clothes and safety tools (PPE) suitable for activity Walkie talkie Portable wrench & hand tools Soap solution (for bubble test) and sponge Samsung Engineering Co. NO.1. SO2476 Related P&ID (Piping & Instrument Diagram) Refer to attached gross air leak test marked-up P&ID. He shall obtain relevant work permits and approved JHA (Job Hazard Assessment) as necessary and coordinate with Company’s acceptability of gross air leak test.5 Skilled Laborers shall be employed for the execution of works. and receive relevant instructions from Pre-commissioning Supervisor who is responsible for the activity.6 Tool box meetings to be conducted at the outset of each activity. 4. 4. Ltd . They must understand the extent of works to be executed. 4. 4. effectively maintaining good productivity. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev.2.3 Engineer / Supervisor shall be responsible for monitoring of the work progress.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. aware of the hazards involved. 4. coordinating with Owner and providing necessary technical support to the site to execute the said activities on time.1 Pre-commissioning Manager is responsible for establishing methods and procedures. and secure relevant and certified documents as part of the requirements before the said activities begin.2. TITLE DOC. recommending corrective actions and ensuring site compliance with the Contractor’s Health Safety and Environmental program.4 Safety In-charge / Supervisor shall be responsible for site surveillance. temporary ladder or scaffolding 5.. ROLES & RESPONSIBILITIES 4. 4. Required equipment Instrument Air Package (12-105-00-PK-006) Temporary connection hose. 3. in particular near the pressurization and depressurization areas in order not to damage any mechanical. SO2476 DOC. and mechanical arrangement of valve and equipment are properly identified.1. Location of isolation valves and blinds shall be checked according to the approved marked-up P&ID’s. electrical and instrumentation items. Non-essential personnel are barred from the area during the test.. 6. NO.1. barrier and watchmen shall be provided in the test area. 6. 6 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. It must be ensured that marked-up P&ID’s are available.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. Flange and unions should not be soaped until the system has reached to a constant pressure level.2. 6. The safety measures such as warning sign. 6. 7. Non testing block shall be vented properly so that this block can never be pressurized due to the unexpected leakage of block valve. SAFETY PRECAUTIONS 6. The danger of sudden leaks through the gaskets is anticipated during the pressurizing.5. Protection of devices in the vicinity of network shall be carefully studied. The locations of test medium introduction during pressure build up and medium discharge during depressurization should be defined and isolated.3. 7.6. Samsung Engineering Co.4. Preparation All temporary equipment shall be dismantled. vent and the designated valves on the package battery limit are closed and the instrument line valve is to be opened as shown in the gross air leak test path. TITLE Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 6. and the permanent equipment shall be reinstated. All drain. Contractor will provide watchmen at key points to ensure security. Ltd . DETAILED METHOD Refer to attached marked-up P&ID’s for detailed pipes & valve mechanical arrangement. 6. pipes and fittings are identified. Leak tests must not be performed unless the entire system is free from hydrocarbons. Pressure The pressure reading shall not exceed specified test pressure. 7 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Be reminded that overpressure of the system may cause damage to the equipment such as valves. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. turbines. vessels. Refer to below table for the correct test pressure of each air leak test package. Test Pressure Pressure Monitoring L1-105-001 7 barg PG 100 & PT 003 L1-105-002 7 barg PG 100 & PT 003 L1-105-003 7 barg PG 100 & PT 003 L1-105-004 7 barg PG 100 & PT 003 L1-105-005 7 barg PG 100 & PT 003 L1-105-006 3. NO.. SO2476 The location of the pressure gauges/indicators needed during test should be identified and ensured that they are functional. Test blocks shall be established and isolated based on the relevant diagrams.2. pitting. Ltd . TITLE DOC.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. pumps. Package No. etc. exchangers.1 barg PG 011 & PT 005 L2-105-001 7 barg PG 100 & PT 003 L2-105-002 7 barg PG 100 & PT 003 L2-105-003 7 barg PG 100 & PT 003 L2-105-004 7 barg PG 100 & PT 003 L2-105-005 7 barg PG 100 & PT 003 L2-105-006 7 barg PG 100 & PT 003 L2-105-007 7 barg PG 100 & PT 003 L2-105-008 7 barg PG 100 & PT 003 L2-105-009 7 barg PG 100 & PT 003 Remarks (Sub-system) WU105-01-04 (Manifold System) WU105-01-04 (Manifold System) WU105-01-04 (Manifold System) WU105-01-04 (Manifold System) WU105-01-04 (Manifold System) WU105-01-04 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) WU105-02-02 (Manifold System) Samsung Engineering Co. 7. Unmarked valves or valves marked “o” shall be open. 8 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. hold for 10 minutes . hold for 10 minutes 7.. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev.Raise to 2. hold for 10 minutes . raise to 1. Ltd .4.5 barg. raise to 2 barg. For example: If required test pressure = 7 barg .3. 7. hold for 10 minutes . SO2476 Pressure Build-up Sequence Pressurization at approximately 25%. Sequence (Air Leak Test) Note: Valves marked “x” in marked-up P&ID’s shall be closed.5 barg.From starting pressure.Raise to 7 barg.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. hold for 10 minutes .1 barg.From starting pressure.Raise to 3 barg. and 75% of the required test pressure shall be set with a 10-minute hold each time followed by system check.1 barg .Slightly raise to 3.Raise to 3. hold for 10 minutes If required test pressure = 3.Raise to 5 barg. hold for 10 minutes . TITLE DOC. Samsung Engineering Co. 50%. NO. hold for 10 minutes .5 barg. 4.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. the system has successfully passed the air leak test. After depressurization. Disconnect temporary hose. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 2. Reinstate package as per P&ID. Check for bubbles formation. If bubbles form. 15. Keep the system pressure at 7 barg. If no bubbles are detected. Close the air supply root valve on the instrument air line. 7. 9. Recheck for any air leaks by applying soap solution on the same location. 16. TITLE Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 12. 13. NO. 8. tighten the bolts of the flange joint or connection where bubbles were found. close valves (L-009 & L-029). Samsung Engineering Co. Apply soap solution around all flange joints and valves around the system. 9 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. 14. 10. Open the air supply root valve on the instrument air line. Discharge air by slowly opening valve (L-029) in the Typical 3. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Repeat test. CASE 1: Phase 1 only L1-105-001: Manifold System (WU105-01-04) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – Typical 1 – Typical 2 – Typical 3 – MOV 002 1. 5. 3. Remove flexible hose. SO2476 DOC.. Stop air injection by closing valve (L-009). 6. 11. Ltd . tighten the bolts of the flange joint or connection where bubbles were found. NO. Check for bubbles formation. Open the air supply root valve on the instrument air line. 4. If no bubbles are detected. 16. Keep the system pressure at 7 barg. 10. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Remove flexible hose. 8. If bubbles form. 11. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. Ltd . Repeat test. 13.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC.. 10 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). 5. the system has successfully passed the air leak test. Samsung Engineering Co. 9. 14. Stop air injection by closing valve (L-009). 15. 2. After depressurization. Apply soap solution around all flange joints and valves around the system. 7. Disconnect temporary hose. Reinstate package as per P&ID. TITLE DOC. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 3. close valves (L-009 & L-007). 6. Close the air supply root valve on the instrument air line. Recheck for any air leaks by applying soap solution on the same location. 12. SO2476 L1-105-002: Manifold System (WU105-01-04) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Ltd . 2. 3. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 15. 9. Samsung Engineering Co. tighten the bolts of the flange joint or connection where bubbles were found. Remove flexible hose. 6. Slowly build up pressure up to 7 barg according to the pressure build up sequence. Apply soap solution around all flange joints and valves around the system. close valves (L-009 & L-007). 14. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Close the air supply root valve on the instrument air line. 16. Open the air supply root valve on the instrument air line. Disconnect temporary hose. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). 10. TITLE DOC. Stop air injection by closing valve (L-009). If bubbles form. Recheck for any air leaks by applying soap solution on the same location. After depressurization. 11 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. 4. 8. 13.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. SO2476 L1-105-003: Manifold System (WU105-01-04) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. NO. Repeat test. 12. If no bubbles are detected. 7. Keep the system pressure at 7 barg. Check for bubbles formation. Reinstate package as per P&ID. 5. 11.. the system has successfully passed the air leak test. TITLE DOC. SO2476 L1-105-004: Manifold System (WU105-01-04) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Ltd . 10. tighten the bolts of the flange joint or connection where bubbles were found.. Recheck for any air leaks by applying soap solution on the same location. 13. 12 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Check for bubbles formation. close valves (L-009 & L-007). Samsung Engineering Co. 14.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. 4. 8. 6. 15. 11. If bubbles form. the system has successfully passed the air leak test. 5. Disconnect temporary hose. 7. 12. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 2. After depressurization. Reinstate package as per P&ID. If no bubbles are detected. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. Open the air supply root valve on the instrument air line. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Apply soap solution around all flange joints and valves around the system. Repeat test. Keep the system pressure at 7 barg. 16. Remove flexible hose. 3. NO. Stop air injection by closing valve (L-009). 9. Close the air supply root valve on the instrument air line. 11. Keep the system pressure at 7 barg. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. close valves (L-009 & L-007). 14. tighten the bolts of the flange joint or connection where bubbles were found. If no bubbles are detected. 2. Apply soap solution around all flange joints and valves around the system. 4. 10. Open the air supply root valve on the instrument air line. 7. If bubbles form. 12. 15. Reinstate package as per P&ID. Repeat test. Close the air supply root valve on the instrument air line. 6.. 16. Remove flexible hose. SO2476 L1-105-005: Manifold System (WU105-01-04) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Samsung Engineering Co. 13 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. the system has successfully passed the air leak test. Stop air injection by closing valve (L-009). Recheck for any air leaks by applying soap solution on the same location. Ltd . 9. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). After depressurization. NO. 13. 3.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. TITLE DOC. Check for bubbles formation. 5. 8. Slowly build up pressure up to 7 barg according to the pressure build up sequence. Disconnect temporary hose. 3. NO. 15.1 barg according to the pressure build up sequence. TITLE DOC. 6.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. tighten the bolts of the flange joint or connection where bubbles were found. 7. 16. 5. Remove flexible hose. Apply soap solution around all flange joints and valves around the system. 11.1 barg. Keep the system pressure at 3. close valves (L-076 & L-080). 12. the system has successfully passed the air leak test. 4. Reinstate package as per P&ID. Check for bubbles formation. Recheck for any air leaks by applying soap solution on the same location. Open the air supply root valve on the instrument air line. Discharge air by opening valve (L-080) 14. Ltd . Slowly build up pressure up to 3. SO2476 L1-105-006: Manifold System (WU105-01-04) Equipment: CLOSED DRAIN DRUM (105-00-V-001) and Associated Piping Testing limit: L-079 – 105-00-V-001 – All closed drain valves 1. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 9. 13. Repeat test. Use flexible temporary connection hose to connect instrument air outlet to valve (L-076) on the inlet line of the Closed Drain Drum 2. Stop air injection by closing valve (L-076).. Disconnect temporary hose. After depressurization. 14 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Samsung Engineering Co. Close the air supply root valve on the instrument air line. If no bubbles are detected. If bubbles form. 8. 10. 9. If bubbles form. 15 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). TITLE DOC. 2. 12. Keep the system pressure at 7 barg. Apply soap solution around all flange joints and valves around the system. 11. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 8. the system has successfully passed the air leak test. Check for bubbles formation. 15. Open the air supply root valve on the instrument air line. Repeat test. SO2476 CASE 2: Phase 1 combined with Phase 2 L2-105-001: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. NO. Reinstate package as per P&ID. Stop air injection by closing valve (L-009). Samsung Engineering Co. close valves (L-009 & L-007). 3. If no bubbles are detected. 4.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. 5. 13. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 7. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. 6. 10. After depressurization. Ltd . Remove flexible hose.. 16. 14. Close the air supply root valve on the instrument air line. Disconnect temporary hose. tighten the bolts of the flange joint or connection where bubbles were found. Recheck for any air leaks by applying soap solution on the same location. If no bubbles are detected. Remove flexible hose. Samsung Engineering Co. 5. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 12. 7. 15. Close the air supply root valve on the instrument air line. After depressurization. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Ltd . If bubbles form. SO2476 L2-105-002: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Reinstate package as per P&ID. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. the system has successfully passed the air leak test. 11. Disconnect temporary hose. Repeat test. 10. 14.. 4. 3. 2. NO.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. Open the air supply root valve on the instrument air line. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). Apply soap solution around all flange joints and valves around the system. Stop air injection by closing valve (L-009). close valves (L-009 & L-007). Check for bubbles formation. 13. TITLE DOC. tighten the bolts of the flange joint or connection where bubbles were found. 16 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. 8. 9. 6. Recheck for any air leaks by applying soap solution on the same location. 16. Keep the system pressure at 7 barg. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 6. Remove flexible hose. 11. After depressurization. Keep the system pressure at 7 barg. 14.. tighten the bolts of the flange joint or connection where bubbles were found. 4. 8. If bubbles form. 7. NO. Samsung Engineering Co. Reinstate package as per P&ID. 16. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). Open the air supply root valve on the instrument air line. Check for bubbles formation. Apply soap solution around all flange joints and valves around the system. Disconnect temporary hose. the system has successfully passed the air leak test. SO2476 L2-105-003: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 10. Close the air supply root valve on the instrument air line. 12. 9. 17 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Ltd . 2. 3. TITLE DOC. Stop air injection by closing valve (L-009). Repeat test. 5. If no bubbles are detected. 15. Recheck for any air leaks by applying soap solution on the same location. close valves (L-009 & L-007). 13.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. 13. If bubbles form. Disconnect temporary hose. Keep the system pressure at 7 barg. 3. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. Stop air injection by closing valve (L-009). Reinstate package as per P&ID. 4. 6. tighten the bolts of the flange joint or connection where bubbles were found. 15. 16. 8.. TITLE DOC. 11. 14. the system has successfully passed the air leak test. Recheck for any air leaks by applying soap solution on the same location. NO. Close the air supply root valve on the instrument air line. 12. 7. Remove flexible hose. Discharge air by slowly opening valve (L-008) of the Typical 2 outlet. Open the air supply root valve on the instrument air line. Repeat test. 18 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. SO2476 L2-105-004: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – Typical 1 – Typical 2 – L005 1. 5. Slowly build up pressure up to 7 barg according to the pressure build up sequence. Samsung Engineering Co. 9. Apply soap solution around all flange joints and valves around the system. Ltd . 2.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. If no bubbles are detected. 10. Check for bubbles formation. close valves (L-009 & L-008). After depressurization. West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. 2. the system has successfully passed the air leak test.. Keep the system pressure at 7 barg. 16. NO. 10. Open the air supply root valve on the instrument air line. TITLE DOC. 4. Reinstate package as per P&ID. Slowly build up pressure up to 7 barg according to the pressure build up sequence. SO2476 L2-105-005: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Apply soap solution around all flange joints and valves around the system. 5. Ltd . Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 11. close valves (L-009 & L-007). 8. Remove flexible hose. Repeat test. 7. Stop air injection by closing valve (L-009). Close the air supply root valve on the instrument air line. 15. 6. 14. After depressurization. 13. 12. If no bubbles are detected. 19 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. tighten the bolts of the flange joint or connection where bubbles were found. Check for bubbles formation. 9. Samsung Engineering Co. If bubbles form. Recheck for any air leaks by applying soap solution on the same location. 3. Disconnect temporary hose. After depressurization. 5. If bubbles form. 4. 13. 9. the system has successfully passed the air leak test. Reinstate package as per P&ID. Repeat test. 20 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. Recheck for any air leaks by applying soap solution on the same location. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line.. Apply soap solution around all flange joints and valves around the system. Slowly build up pressure up to 7 barg according to the pressure build up sequence. 7. 14. 6. Open the air supply root valve on the instrument air line. SO2476 L2-105-006: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. 8. 2. Close the air supply root valve on the instrument air line.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. 11. Check for bubbles formation. Remove flexible hose. 10. Disconnect temporary hose. Samsung Engineering Co. close valves (L-009 & L-007). Keep the system pressure at 7 barg. 15. tighten the bolts of the flange joint or connection where bubbles were found. 12. Stop air injection by closing valve (L-009). 16. TITLE DOC. NO. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). Ltd . 3. If no bubbles are detected. If bubbles form. Check for bubbles formation. Keep the system pressure at 7 barg. 10. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). 16. 6. SO2476 L2-105-007: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. Disconnect temporary hose. Open the air supply root valve on the instrument air line. Stop air injection by closing valve (L-009). 5. close valves (L-009 & L-007). If no bubbles are detected. TITLE DOC. 12. Ltd . Apply soap solution around all flange joints and valves around the system. Slowly build up pressure up to 7 barg according to the pressure build up sequence. the system has successfully passed the air leak test. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. 21 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. After depressurization. 14. 15. NO. Recheck for any air leaks by applying soap solution on the same location. 11.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. 3. 13. 8. Remove flexible hose. Samsung Engineering Co. 2. 4. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Close the air supply root valve on the instrument air line. Repeat test. 9. 7.. tighten the bolts of the flange joint or connection where bubbles were found. Reinstate package as per P&ID. 22 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. tighten the bolts of the flange joint or connection where bubbles were found. After depressurization. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). 3. 6. If bubbles form. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. Keep the system pressure at 7 barg. 12. Remove flexible hose. Ltd . Close the air supply root valve on the instrument air line.. 14. 13. 10. the system has successfully passed the air leak test. Samsung Engineering Co. 2. Slowly build up pressure up to 7 barg according to the pressure build up sequence. SO2476 L2-105-008: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. 9. Apply soap solution around all flange joints and valves around the system. close valves (L-009 & L-007). If no bubbles are detected. 16. TITLE DOC. 15. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. Recheck for any air leaks by applying soap solution on the same location. NO. 11. Reinstate package as per P&ID. 4. Repeat test. 5. Open the air supply root valve on the instrument air line. 8. Check for bubbles formation. Disconnect temporary hose. 7. Stop air injection by closing valve (L-009). 14. Recheck for any air leaks by applying soap solution on the same location. Ltd . 5. the system has successfully passed the air leak test. Use flexible temporary connection hose to connect instrument air outlet to valve (L-009) of the Asphaltene Inhibitor injection line. close valves (L-009 & L-007). If bubbles form. Apply soap solution around all flange joints and valves around the system. NO. Close the air supply root valve on the instrument air line. 6. 2. 11. After depressurization. Reinstate package as per P&ID. Remove flexible hose. Slowly build up pressure up to 7 barg according to the pressure build up sequence. SO2476 L2-105-009: Manifold System (WU105-02-02) Equipment: N/A (Piping Only) Testing limit: A-002 & C-004 – L-021 of Typical 1 1. 12. Stop air injection by closing valve (L-009). Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. TITLE DOC. If no bubbles are detected. Samsung Engineering Co. Keep the system pressure at 7 barg.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. 7. 4. 15.. 8. Disconnect temporary hose. 8. 3. Repeat test. tighten the bolts of the flange joint or connection where bubbles were found. 10. ACCEPTANCE CRITERIA The test is considered successful and acceptable when there is no significant pressure loss or bubbles detected. Open the air supply root valve on the instrument air line. Check for bubbles formation. Discharge air by opening valve in the Corrosion Inhibitor injection line (L-007). 13. 9. 23 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. 16. TITLE DOC. NO. Description Time Start Finish Remarks (Test Pressure) Comments: Name Signature Date Contractor Company Samsung Engineering Co. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev. CHECK SHEET Gross Air Leak Test Check Sheet Type of Cleaning: N/A System / Sub-system: Date: Medium: Pressure: Refer to Remarks column below Package No. 24 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. SO2476 9.. Ltd . Ltd . 25 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. TITLE DOC. LEGEND OF SYMBOLS Samsung Engineering Co. Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev.West Qurna Field 2nd Phase Project (Early Oil Phase) DOC.. NO. SO2476 10. West Qurna Field 2nd Phase Project (Early Oil Phase) DOC. SYSTEM BASED GROSS AIR LEAK TEST PACKAGE LIST System: WU105-01 (Well Pad # 5) Sub-system Packages WU105-01-01 (Chemical Injection Package) WU105-01-02 (Instrument Air System) WU105-01-03 (Well Head Control Panel) None None None L1-105-001 L1-105-002 L1-105-003 L1-105-004 L1-105-005 L1-105-006 WU105-01-04 (Manifold System) System: WU105-02 (Well Pad # 5) WU105-02-01 (Well Head Control Panel) None L2-105-001 L2-105-002 L2-105-003 L2-105-004 L2-105-005 L2-105-006 L2-105-007 L2-105-008 L2-105-009 WU105-02-02 (Manifold System) APPENDIX II. TEMPORARY PRESSURE GAUGE LIST Flange Connection Range Qty P&ID N/A Samsung Engineering Co. SO2476 APPENDIX I. 26 of 26 00 8015-0151-SECL-00-000-CM-MS-00045 Job No. TITLE DOC. NO.. BLINDS LIST Size (in) Rating N/A Qty P&ID APPENDIX IV. LEAK TEST PACKAGE MARKED UP P&ID'S Refer to attached marked-up P&ID’s APPENDIX III. Ltd . Method Statement for Gross Air Leak Test of Well Pad # 5 (WU105) Page Rev.