Project Profile
Value: US$5.4 billion
Location: Blocks 425, 469, 206, Walker Ridge
Start-up Year: 2011
Water Depth: 2,600m
Petrobras is the operator of both units, owning 50% and 66.67% of the fields, respectively. The remaining 50% of Cascade was acquired from Devon Energy Corporation and Total E&P owns 33.33% of Chinook.
Both the Chinook and Cascade are ultra-deepwater fields - Blocks 425, 469, 206. The development is in the Walker Ridge block, south of Louisiana. The fields are to be tied back to an FPSO, to fast track production. The FPSO will be located in 2,600m of water and is the deepest in the world.
Operators:
Petrobras: Operator with 100% interest in Cascade, Operator with 67% interest in Chinook.
Total: 33.33% interest in Chinook
Contractors:
Aker Solutions: Supply of subsea power cables and control umbilicals
Advanced Production and Loading Inc (APL): STP buoy and mooring system
Bluewater Energy Services BV: Originally to supply Munin FPSO
BW Offshore: FPSO contract
BMT Scientific Marine Services: Systems integrator
Det Norske Veritas (DNV): Certified Verification Agent
DPS: EPC contract for crude stabilisation and flare modules
First Subsea: Supply mooring connections for a detachable submerged turret production (STP) buoy
Flexlife: Provide independent assessment services
FMC Technologies: Subsea Systems Supply
Granherne: Three-year engineering services contract - technical support for design of the hull for the early production system (EPS), floating production storage and offloading system (FPSO), and later phase full field development (FFD).
Heerema Marine Contractors (HMC): Installation of the Chinook infield flowlines
Jumbo Offshore: Transported and assisted installation of 5 FSHRs
Kongsberg Oil & Gas Technologies: Digital oilfield tool (DOFT)
Roxar Ltd.: Reservoir sensors and multiphase measurement systems
Sonardyne International: Supply an integrated acoustic positioning and telemetric system
Subsea 7: Installation contract
Technip: Design, construction and installation of five, free-standing hybrid riser systems
Installation of infield flowlines and a gas export pipeline
Transocean: Drilling contractor
UniversalPegasus International: Flowline & umbilical project management
Vertec (Now OEG Offshore): Supply of a variable speed drive (VSD) module
Veolia ES Industrial Services: Marine services, using Viking Poseidon deepwater vessel
Welaptega Marine: Inspect riser moorings