Flowline Installation and Hook-up at WP2 & WP4

 

This scope involves the installation and hook-up of flowlines on Well Platform 2 (WP2) and Well Platform 4 (WP4) to support production from existing and new wells. At WP2, new flowlines are installed to connect the X-mas tree Yad-2M to the existing flowline Yad-2I.

At WP4, four new 6-inch flowlines connect new X-mas trees to both production and test manifolds. WP4 features nine well slots, with five currently in production.

 

Piping & Structural Works

  1. Conduct site surveys, including 3D laser scanning, to determine optimal routing for flowlines.
  2. Demolish existing piping, install blind flanges, and perform detailed engineering and stress analysis.
  3. Perform Non-Destructive Testing (NDT) including X-ray and Phased Array Ultrasonic Testing (PAUT) for all field welds.
  4. Conduct hydrostatic testing on all fabricated piping spools.
  5. Perform low-pressure leak testing on tie-in valves and nitrogen leak testing on the complete system.
  6. install access platforms, including required modifications to existing structures.
  7. (Scope covers both onshore fabrication and offshore installation.)

 

Electrical & Instrumentation (E&I) Works

  1. Execute all E&I works, including tubing installation between X-mas trees, Wellhead Control System (WHSC), and override stations. Perform hydraulic flushing and functional testing of instrumentation flowlines on both WP2 & WP4.
  2. Install various instrumentation, including gauges, transmitters, flow meters, cable trays, supports, instrument tubing, and hydraulic tubing for chokes, actuated valves, and X-mas trees.

 

Pre-Commissioning & Commissioning

  1. Develop and execute pre-commissioning and commissioning procedures, including check sheets and test plans, upon completion of drilling and hook-up works.
  2. Conduct function testing for all subsystems and equipment related to the new flowlines on WP2 and WP4.
  3. Perform troubleshooting, record all malfunctions, and complete hydraulic flushing of tubing.
  4. Operate and verify proper function of actuated valves, choke valves, and X-mas tree valves.
  5. Execute loop checks, calibration, and functional testing of all transmitters (pressure, temperature, flow, level), control valves, and chokes.
  6. Perform configuration and testing for flow transmitters.
  7. Develop and perform Operational Test Procedures (OTP) before and after gas-in.