Gulfstar

A Shining New Star in the Deepwater Gulf.

Gulfstar FPS, a flexible, reliable solution for deepwater producers, has gone from concept to reality in the deepwater Gulf of Mexico.

Installation of Gulfstar One is complete – 21,500 tons of proof that American engineering is alive and well.

Gulfstar’s standard design approach allows customers to reduce their cycle time from discovery to first oil. From sanctioning a project to completion, Gulfstar can be delivered in 30 months.

Gulfstar Vision

  • Develop core design with “plug and play” options
  • Enhance safety and reliability with each follow-on unit
  • Provide significant reduction in delivery schedule
  • Reduce risk of engineering & construction cost overruns
  • Provide meaningful producer-operator infrastructure alignment

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Gulfstar at a Glance

  • Classic spar hull with traditional three-level topsides
  • Designed for 3,000 – 8,500 feet water depths
  • Proven and reliable wet-tree technology
  • 60,000 barrels of oil per day
  • Core design of 100 MMcfd; expandable to 200 MMcfd
  • 30 months from start to finish
  • Designed for the new maximum storms
  • First spar-based FPS with major components built in the U.S.
Features Benefits
Williams is a one-stop shop Williams funds the floating production system and the export pipelines, minimizing the number of interfaces with multiple companies
First spar to be built in a graving dock
Simplifies load-out
Single-lift deck During installation, deck is lifted as a single piece, reducing offshore hook up and commissioning time
Hull blocks built vertically
  • Allows easy vertical access to equipment during installation and reduces confined space requirements
  • Minimizes out-of-round problems normally associated with horizontal fabrication
Dead oil storage in hull
  • Dry oil – 10,440 BBL
  • For unplanned well shut-ins, dead oil can be pumped into flow lines, replacing live crude
Large chemical storage
  • Methanol – 1,160 BBLchemicals (10 100-BBL/8 200-BBL)
  • 18 S/S vessels for subsea flow assurance

Topside Features

  • Wells – wet trees only – no rig
  • Configuration – 3-level deck (main, production and cellar)
  • Maximum operating payload – 8,600 short tons (includes payload for options)
  • Production separation – 3 two-phase x 30,000 BLPD
  • Test separation – 1 three-phase x 30,000 BLPD
  • Power generation – three T-60s (all with waste heat and dual fuel)
  • Cranes (main 35 short tons & 130 ft. radius, aux.) 5 short tons and 40 ft. radius
  • Living quarters – 50 persons
  • Helideck – S-92 Helicopter
  • Lift – single piece, 6,600 short tons (excluding crane and vent boom)
  • Design life – 25 years

Hull Characteristics

  • Hull form: Classic Spar
  • Water depth range: 3,000 – 8,500 ft.
  • Outside diameter: 85 ft.
  • Freeboard: 60 ft.
  • Draft: 524 ft.
  • Centerwell: wet, circular, 30’ diameter
  • Strakes 11’ (13%), 3 starts
  • Wave deflection fairing projecting 7’-3”
  • Fixed ballast: 9,500 st.
  • Mooring system: chain/polyester, 3×3
  • Export risers: 2 pull-tubes to accommodate up to 14” risers
  • Flowlines: 8 pull-tubes to accommodate up to 8-5/8” 15K risers
  • Umbilical/injection lines: 8 pull-tubes
  • Designed to API-MET – Central Gulf Area hurricane environments
  • CVA – American Bureau of Shipping (ABS)

Contact Information

Stafford Menard
Manager, Gulfstar Development
(713) 215-2132
stafford.menard@williams.com

Mike Keller
Business Development – Gulfstar
(713) 215-3123
michael.keller@williams.com

Tim Brennan
Business Development – Gulfstar
(713) 215-3029
tim.brennan@williams.com