Sembilang Reactivation Plan Conceptual Study (Pre-FEED)

Project Name : Sembilang Reactivation Plan Conceptual Study (Pre-FEED)

Client : PT Mandiri Panca Usaha

Year : 2013



The Sembilang Field is a small, faulted hydrocarbon accumulation located on the western edge of the South Natuna Sea Block “B” Contract Area (“Block B”). The field has been shut-in and temporarily abandoned by previous KKKS. Of the 5 subsea wells, 3 were potentially capable of producing oil, and one was a gas well, supplying fuel for the project and gas lift

PT Mandiri Panca Usaha plans a well reactivation program in Sembilang Field.  Previous Topside Facility Design will be used with some sizing based on latest production profile.


Reactivation program should not use rig since it is not economical based on Production Profile. It will use rigless well intervention techniques. These rigless techniques include Wireline, Coiled Tubing (CT) and Hydraulic Workover (HWO).

After analyzing the condition of each well barrier element, methodology for reactivation procedure can be constructed. Specific Well Procedure generated based on well condition.





Sub Surface Facility

  • Review Reservoir Study
  • Well Integrity
  • Reactivation Plan

Under Water Facility

  • Flexible Flowline Risers
  • Flexible Umbilical Risers
  • Subsea Tensioning Buoy
  • X-Mass Trees
  • Wireline Re-Entry Risers

Surface Facility

  • FlowLine Simulation
  • Process System
    • Separation System
    • Gas Lift Compressor
    • Flare System
  • Utility System
    • Fresh water system
    • Power generation
    • Fuel gas system
    • Heating medium system
    • Utility Air and Nitrogen system
    • Air Start Compressor systems
    • Chemical injection system
    • Closed and open drain systems
    • Sand washer unit
  • Marine System
    • Storage System and Offloading
    • Slops System
    • Ballast System
    • Positioning System
    • Tank Blanketing System
    • Mooring System
    • Living Quarter


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