GVA 27000

The GVA 27000 is a pure production and quarter's semi-submersible (PQ). The unit is designed for the Atlantis Field in the Gulf of Mexico. It has favorable motion characteristics for SCR fatigue. The accesses to all production risers are vertical. A large deck area for storage of cargo is also provided.

 

Name                     Atlantis

Location                Gulf of Mexico 300 km (190 miles)

                              South of New Orleans

Water depth           2,160 m (7,100 ft)

Duties                    Oil and gas production,

                              Field center and Accommodation

Status                    First oil 2006

Owner                    BP and BHP Billiton

Design                   GVA

Topside Design      Mustang Engineering

Regulatory/Class    MMS/USCG/ABS

 

 

 

 

 

 

MAIN PARTICULARS

 

 

 Length over all:

 129.0 m

 423.2 ft

 Width over all:

 119.0 m

 390.4 ft

 Length of pontoons:

 89.6 m

 294.0 ft

 Height to Upper Deck:

 52 m

 170.6 ft

 Topside:

 25,500 tonnes

 56,220 kips

 Future Topside Reserve:

 10,000 tonnes

 22,047 kips

 Light Unit Weight:

 44,300 tonnes

 97,669 kips

 Displacement:

 89,000 tonnes

 196,219 kips

 Draught:

 26.0 m

 85,3 ft

 Air gap in survival:

 17.5 m

 57.4 ft

VESSEL CAPACITIES

 

Oil Production:

 200,000 BOPD

Gas Production :

 180 MMSCFPD

Gas lift:

  60 MMSCFPD

Water Production:

  75,000 BOPD

Water Injection

 75,000  BWPD

Risers:

 16 SCR:s (7 base case + 9 Future)

Accommodation:

 100 persons

Station Keeping:

 12 point semi-taut chain-wire-chain system

References

Atlantis