Cascade Chinook Oil And Gas Field

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USA Oil & Gas Fields

Petrobras Oil & Gas Fields

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Summary Information

  • Operator: Petrobras
  • Country: USA
  • Location: Walker Ridge Blocks 206 & 469, Gulf of Mexico
  • Production start: 2012
  • Partners:
    • Cascade - Petrobras - 100.00%
    • Chinook - Petrobras (66.67%) and Total (33.33%)
  • Type: Oil & Gas
  • Estimated Reserves:
  • Production Volume:


  • The Cascade-Chinook oil and natural gas project, located in the Walker Ridge area of the Gulf, approximately 165 miles offshore Louisiana in 8,200 feet of water
  • The field utilises the BW Pioneer FPSO
  • The FPSO has a capacity to process 80,000 barrels of oil and 500,000 cubic meters of gas per day.
  • Gas is transported via the Discovery Gas Pipeline System


  • BW Offshore: Provision of FPSO
  • Technip:
    • Engineering, procurement, construction and installation (EPCI) of five free standing hybrid riser systems
    • Installation of the Cascade infield flowlines and gas export pipeline
  • First Subsea: Supply of mooring connections for a disconnectable Submerged Turret Production (STP) Buoy


  • 2002 - Cascade field discovered
  • 2003 - Chinook field discovered
  • 2006 - Devon Energy acquired BHP Billiton's stake
  • 2009 - First Subsea awarded contract to supply FPSO mooring connections
  • 2011 - BOEMRE Approves use of BW Pioneer FPSO
  • 2012 - First oil produced
  • 2014 - Daily production reached 40,000 bpd



  1. Gulf Of Mexico Discoveries In Water Depths Greater Than 5000
  2. Gulf Of Mexico Permanent Deepwater Structures
  3. Gulf Of Mexico Deepwater Natural Gas And Oil Qualified Fields
  4. Devon Energy Increases Share of Lower Tertiary Cascade Unit; First Production Expected in 2009
  5. Technip awarded two contracts for ultra deepwater developments in the Gulf of Mexico
  6. BOEMRE Approves First-Ever Use of Deepwater Floating Production Storage Offloading Facility in Gulf of Mexico
  7. First Subsea to moor Chinook Cascade FPSO STP Buoy
  8. BW Offshore: First oil on BW Pioneer
  9. Record of 40,000 bpd from Cascade and Chinook

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