SITE SERVICES DEPARTMENT Procedure for installation of RTR pipe inside sleeve pipe Project Contractor End User Reference MS for installation inside sleeve pipe Revision 0 Date Mar 28, 2018 Table of Contents 1 Procedure .................................................................................................................................. 2 1.1 Scope........................................................................................................................................................ 2 1.2 Procedure ................................................................................................................................................ 2 1.3 HSE Requirement ..................................................................................................................................... 3 1.4 Resources ................................................................................................................................................. 4 MS for installation 3/28/2018 02:18 PM inside sleeve pipe Page 1 of 4 Form: TSD‐F‐GR‐R0 Nov 25, 2012 1 Procedure 1.1 Scope The scope of this procedure is to provide a work procedure to carry out the jointing and installation of 600 mm Diameter Make‐Up Water RTRP pipes through steel pipe casing/sleeves Diameter ‐‐‐‐‐‐‐mm. The procedure written in this Method Statement is as complete as possible; it is not possible to describe all kinds of circumstances that may be encountered in the field. For this reason our experienced Supervisor may vary the described procedure in order to achieve an optimum solution using the latest hydro testing techniques and processing methods. 1.2 Procedure 1. The required numbers of the RTRP Carrier pipes for the road crossing will be bonded, and driven through the sleeve pipe as per following steps, the sleeve ends shall be left open during hydro test; so, it would be visible if any water leakage would take place for the laminated joints inside the sleeve pipe. 2. RTRP pipes shall be fitted with plastic centralizers with bottom piece fixed with aluminium roller wheels to facilitate smooth insertion. Centralizers will be fixed with maximum as spacing of 2.0 meters. Figure 1. Centralizer detail 3. The RTRP pipe shall be aligned to the steel pipe sleeve by using crane or similar lifting equipment. 4. The first pipe should be fitted with a rope or nylon slings passing through the steel sleeve which will be used for pulling the pipe on the other side of the steel sleeve to facilitate ease of insertion while being pushed from the other end. 5. Insert the first pipe into the steel sleeve leaving a length enough to carry out the lamination joint. 6. Laminations joint shall be carried as per the approved field lamination joints procedures. 7. All joints inside the sleeve casing pipes should Lamination joints MS for installation 3/28/2018 02:18 PM inside sleeve pipe Page 2 of 4 Form: TSD‐F‐GR‐R0 Nov 25, 2012 Figure 2. Sample of installed centralizers 8. After completion of the lamination joints ensuring proper curing by heating blanket, the connected RTRP pipes shall be pushed manually by an excavator, Side boom or similar heavy equipment, or by mean of Come along Jacks. 9. Appropriate care shall be taken to avoid damage of RTRP carrier pipe when inserting/sliding into the sleeve/casing pipe. 10. Appropriate lubricants may be used to avoid rubbing/scratching of carrier pipe when inserted into the sleeve/casing pipe. 11. After successful insertion of the first 2 jointed pipes, repeat steps 5 to 8 unit all the required RTRP pipes are inserted through and through the steel sleeve. 12. Ensure that the roller wheels of the centralizers are in contact with the sleeve/casing pipe. 13. The cased RTRP shall be tested as per Hydrotest procedure. 15. In case joined RTRP inside the sleeve is to be moved, it is recommended to apply only a pushing force in either ends at a maximum displacement distance of 3 meters. 16. pipe. After successful completion of hydrotest, the end sleeves to be installed between Carrier and Sleeve 17. The RTR Sleeved section to be then jointed to the main line for the purpose of main line hydro test. 1.3 HSE Requirement 1. 2. All works shall be undertaken in accordance with the project HSE Manual Work permit to be obtained prior to carrying out any work. MS for installation 3/28/2018 02:18 PM inside sleeve pipe Page 3 of 4 Form: TSD‐F‐GR‐R0 Nov 25, 2012 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 1.4 All works to be carried out in accordance with the requirements of the Work Permit and Method Statements. Safety warning signs to be clearly displayed at the work site. While cutting, grinding and laminating, the following personal protection shall be used to avoid skin irritation and inhaling dust. Dust mask Safety glasses Hand gloves Coverall Safety shoes Safety helmet The chemicals are potentially flammable. Resins and hardeners must be stored in a dry area away from direct sunlight and fire hazards. A sign for flammable material shall be placed. SMOKING is not allowed in all areas where lay ups are being made and fire extinguisher should be available near by the lay‐up area. All the personnel involved in the RTRP Carrier Pipe installation through the Sleeve shall follow the requirement of Project HSE Plan with all essential PPE. Only trained rigging personnel to be deployed for this activity Toolbox talk will be shared with responsible crew on a daily basis to encourage awareness and instruct in proper conduct and care of the Environment. Tool Box talks to be conducted and documented prior to start to work. The Rigging crew shall comply with Aramco safety procedures at all times. The Work Site Supervisor shall ensure compliance of the PTW system by the rigging crew. During the movement of Side boom / Excavator equipment the operator should blow horn to caution the people around. Lifting equipment and gears shall be with valid test certificates and color coded. Proper housekeeping will be maintained at work site. Carry out maintenance and lubrication of vehicles/equipment using the correct collecting trays and containers in order to remove waste lubricants from site. Resources Man Power Lowering Foreman/Work Site Supervisor Charge Hand Rigger Helper Side boom / Crane / Excavator Operator Light Duty Driver Heavy Duty Driver Flagmen Equipment MS for installation 3/28/2018 02:18 PM Side boom Crane Excavator Compressor Centralizer inside sleeve pipe Page 4 of 4 Form: TSD‐F‐GR‐R0 Nov 25, 2012