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Phoenix / Typhoon Oilfield, Gulf of Mexico




Green Canyon area, Gulf of Mexico

Distance From Land

100 miles off the coast of Louisiana

Water Depth


Peak Production

40,000bpd of oil, 60 million cubic feet per day of gas

Field Life

Six to eight years


Q2 2010

Topsides Structural Deck

Two levels consisting of a 110ft x 110ft main deck and a 110ft x 110ft production deck (nominal dimensions)

Major Process Systems (Oil System)

40 million bpd, two-stage separation (two phase separation in HP Separator, three phase separation in LP Separator)

Gas System

60 million cubic feet per day, two-stage main gas compression system, five million cubic feet per day: two stage vapour recovery compression system, Gas separation in both HP and LP separators

Produced Water System

15 million barrels per day hydrocyclones with downstream column flotation unit

Other Process Systems

Process heating and cooling system, well and production chemical injection system, HPU system for direct hydraulic control of subsea wellheads, electronic production and emergency safety system

Utility Systems

8,500kW main generator (two units at 4,250 KW each, dual fuel)


One accommodation building with heliport, one MCC / switchgear building, one storage / shop building

Structural Characteristics of SeaStar TLP Hull

Hull diameter 58ft, column extension 18ft, main column length 130ft (+ / - 3ft), four point topsides support

Hull Systems

Ballast piping system
Valves and pumps
Tank level indication system
Service air system
Vent and sounding system
Ventilation, dehumidification, and AC
Valve control and indication system
Tendon tension and load monitoring system

Mooring System

Six top transition joints
Six bottom transition joints
Six foundation piles
Six tendons
Six top connectors
Six bottom connectors


Helix Solutions Group


Energy Resources Technology (70%) and Sojitz (30%)


Wood Group, Wellstream International

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