GVA 21000

The GVA 21000 is a Production and Quarters semi-submersible designed for the Åsgard Field in the Norwegian Sector. It has a fully integrated production system. The gas production system is the largest on any semi-submersible. It is designed for 50 years in harsh environment.


Name                     Åsgard B

Location                North Sea, Norwegian Sector

Water depth           320 m (1,050 ft)

Duties                    Production and Accommodation

Status                    First oil 2000

Owner                    Statoil Hydro

Design                   GVA

Topside Design      Kvaerner

Regulatory/Class    NPD/NMD/DNV











 Length of  deck:

 114.0 m

 374.0 ft

 Width of Deck:

 96.0 m

 315.0 ft

 Length of pontoons:

 102.4 m

 336.0 ft

 Height to Upper Deck:

 54 m

 177.2 ft

 Topside Load:

 34,000 tonnes

 74,960 kips

 Light Unit Weight:

 54,000 tonnes

 119,054 kips


 85,000 tonnes

 187,400 kips


 25.0 m

 82  ft

 Air gap in survival:

 20.0 m

 65.6 ft



 Oil Production:

 135,000 BOPD

 Gas Production :

 1,300  MMSCFPD

 Water Injection:



 40 Flexibles


 120 persons

 Station Keeping:

 16 point chain-wire-chain system