CONGO BW CALM BUOY FULL REPLACEMENT WITH NEW SBM BUOY PROJECT

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Description

Located in Republic of Congo, Djeno Terminal, the export system consists of two Single Point Mooring (SPM) buoys located in 23m and 35m of water respectively.  Each are held on location using six mooring chains.
CLIENT decided to replace the old BW CALM buoy with a new SBM buoy, including replacement of subsea and floating ancillaries (hoses, hawser etc…).
South Offshore was contracted for the full EPCI Buoy Replacement Project, including, project management, engineering, procurement, fabrication and offshore installation campaigns.

Scope Of Work:

  • Uninstallation of BW old buoy, including hawsers, floating hoses, subsea hoses
  • Installation of new SBM buoy, including hawsers, floating hoses, subsea hoses
  • PLEM Spool replacement
  • All marine activities, including towing of old, new buoy and floating & subsea hoses
  • Onshore preparatory works:
    • old floating & subsea hoses disassembly & cleaning
    • new floating & subsea hoses assembly & testing
  • Pre-commissioning, Commissioning and Start-up assistance

Execution Strategy: EPCI Lump Sum

  • Project management, Engineering, Procurement, Logistics, Onshore works, Offshore operations performed by South Offshore
  • Fabrication and subcontracted services
  • Sourcing and mobilization of an installation vessel
  • Sourcing and mobilization of a diving spread and personnel
  • Management of interfaces and simultaneous operations

Project Key Facts: 

  • Intervention on critical assets for CLIENT and Republic of Congo production export facilities
  • Fast Track campaigns (6 months between Effective Date and first export system start-up)
  • 45 000 man-hours, of which:
    • 5,000 hours of engineering
    • 3,000 hours of project management
    • 8,000 hours of onshore preparation
  • No Defect, completion ahead of the Project Schedule, and within Client’s critical path requirements