Schiehallion Oil Field

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Summary Information

  • Operator: BP
  • Country: UK
  • Location: In the Atlantic, 100 miles to the west of Shetland and Orkney
  • Production start: 1998
  • Partners: Shell - 55%, BP - 33.5%; OMV 11.8%
  • Type: Oil
  • Estimated Reserves: recoverable reserves of 340 million barrels of oil at start up
  • Production Volume:


  • Schiehallion lies in 375 metres water depth in UK blocks 204/20, 204/25a, 204/25b, 205/16 and 205/21b and has recoverable reserves of 340 million barrels of oil.
  • The Schiehallion development centred on 29 seabed wells in four drilling centres, producing oil via manifolds through steel pipelines and then flexible risers into the purpose-built Schiehallion FPSO, a floating production, storage and offloading vessel.
  • The development was based upon producing 340 million barrels contained within the main field and a further 85 million barrels from the Loyal reservoir which overlies it.
  • Peak production of 154,000 barrels of oil a day is expected and the FPSO could store over 900,000 barrels.
  • Gas is transported on the West Of Shetlands Gas Pipeline System
  • The field is being redeveloped in the Quad 204 Redevelopment Project which will utilise the Glen Lyon FPSO, currently under construction

Contractors - Original

  • Brown & Root: Project management, the design and fabrication of the FPSO's topsides and for the vessel installation
  • Harland and Wolff: Design and build the 950,000 barrel capacity vessel
  • SBM: Design and build the turret and moorings
  • Brown & Root McDermott Fabricators (BARMAC): Fabrication of 6,300 tonnes of process topsides
  • Extended Living Quarter
  • Coflexip Stena: Design and supply of Risers
  • BiFab:
    • Fabrication of Upper Turret for FPSO Including Duplex Process Pipework and the LQ Module
    • Hex Replacement Module
    • Extended Living Quarter


  • 1993 - The Schiehallion Oil Field was discovered
  • 1995 - Extended Well Test performed
  • 1996 - The Department of Trade and Industry approved plans to develop the "Schiehallion" oilfield and its satellite "Loyal"
  • 1998 - Production starts
  • 2009 - Technip awarded two contracts for the Schiehallion field
  • 2011 - Quad 204 Redevelopment Project approved by partners
  • 2011 - HHI awarded contract for new FPSO
  • 2012 - Hess Reaches Agreement for Sale of 15.67 % to Shell
  • 2012 - Shell acquired 5.9% from Murphy Oil
  • 2013 - OMV acquires an additional 5.88% from Statoil



  1. BiFab Platform References
  2. Schiehallion Oilfield Development Sanctioned
  3. Alliance starts on BP'S 400 million British pound Schiehallion project
  4. Oil Production Starts from Schiehallion Field
  5. Hess Reaches Agreement for Sale of UK Assets
  6. Technip awarded two contracts for the Schiehallion field in the North Sea
  7. Hyundai Heavy Wins USD 1.2 Billion FPSO Order
  8. BP Prepares for Next Development West of Shetland
  9. Schiehallion Field Extended Well Test
  10. Shell increases participation in the Schiehallion Field and divests its Canadian Seal assets
  11. USD 2.65 bn transaction to capture value and focus the portfolio

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