Turritella FPSO

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SBM Offshore FPSOs

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Summary Information

Brief Description

  • The FPSO is a typical generation 2 design with a processing facility capacity of 60,000 barrels of oil per day (bopd) and 15 mmscfd of gas treatment and export. No water injection facilities are specified.
  • The hull will be able to store 1.6 million barrels of crude oil and total topsides weight will reach 7 thousand tons.
  • It will have a turret with a disconnectable buoy (Buoyant Turret Mooring or BTM) allowing it to weathervane in normal conditions and disconnect from the FPSO upon the approach of a hurricane
  • The BTM will be configured with Steel Lazy-Wave Risers (SLWR) which will be a first application for a disconnectable FPSO. The mooring system will also incorporate the ability to adjust line tension during operations by use of an In-Line Mooring Connector (ILMC)


  • SBM Offshore: Supply and lease of the FPSO
  • Keppel: Refurbishment and life extension works; upgrading of living quarters; fabrication and installation of the internal disconnectable buoy BTM system and topside module supports; as well as the installation and integration of topside modules
  • Dyna-Mac: Eight units of topside modules


  • Under construction


  • 2013 - SBM Offshore awarded FPSO supply contract
  • 2015 - Mitsubishi acquires a stake in the project
  • 2016 - Commercial operation commenced

Other Information

  • When installed, the Stones FPSO will be the deepest FPSO development in the world


  1. Dyna-Mac Topsides Module Business
  2. SBM Offshore Awarded Contracts to Provide World’s Deepest Disconnectable FPSO for Shell Stones in Gulf of Mexico
  3. Keppel secures two FPSO contracts worth S$190 million
  4. Mitsubishi Corporation Participates in FPSO project in the Gulf of Mexico
  5. FPSO Turritella Producing and on Hire

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