Engineering Service of Pinghu Oil and Gas Filed Upgrading
Client: CNOOC and Shanghai Petroleum Company
Project Type: FEED and Detail design
Project Location: East China Sea, China
Project Status: Completed

Project Summary:
    The field is in 80.5m water depth and supply approximate one third of shanghai area total nature gas consumption. The field includes
  • Pinghu Drilling and Production Platform (DPP)
    • 6-leg jacket platform
    • installed and started-up in1998
    • Originally designed with oil and gas treating capability of 20,000 BPD and 160 x 104 Sm3/d, respectively.
    • The platform facilities include the drilling rig, bulk production, gas dehydration, oil treating, utilities, and the exporting pipelines.
  • Bajiaoting wellhead Platform(BJT)
    • 4-leg jacket platform
    • With gas processing and utility equipments
  • Two 7km x 8” oil and gas pipelines tie back from BJT to DPP
  • One 7km sub-sea power/control composite cable connect BJT with DPP

Project Responsibility:

  • Phase I ---2003
    • Basic design of DPP expansion---- Installation of two new dry gas compressors
  • Phase II--- 2004
    • Small reserve development plans optimization
    • Feasibility study for marginal gas filed overall development
    • Basic design of new BJT platform and pipelines
    • Detail design of BJT well template
  • Phase III--- 2006
    • FEED and Detail design of DPP expansion---Glycol Dehydration capacity upgrading
    • FEED and Detail design of DPP upgrading ---installation of two new wet gas compressors
    • FEED and Detail design of DPP upgrading--- Drilling rig modification to reduce weight and save deck space for new compressors

Project Highlights:

  • Saved $300,000 investment compared with fusibility study by maximally utilizing of existing equipments in Phase II expansion
  • Phase I expansion design is awarded the “Best Top 5 Design of 2003” by CNOOC
  • Ensure the TEG system modification be finished during the short production shutdown period
  • Strictly control topside weigh within its original load when adding new wet gas compressors and maintain the necessary drilling capability

Contract Award Date: June 2003, April 2004, April 2006
Completion Date: November 2003, February 2005, March 2008

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