Aasta Hansteen Spar Topsides

Statoil Petroleum AS

Location
Norwegian North Sea
Industry Served
Region
Europe
Year Completed
2018

Scope of Work

FEED, Detailed Design

Summary

The project consists of an integrated deck, living quarter and flare with a total dry weight of 21,500 tonnes, which will be installed on a Spar. Aasta Hansteen is the first Spar structure in Norway, the first to contain condensate storage, and the world’s largest of its kind. The process consists of a conventional gas dehydration and dew-pointing process with condensate stabilization through heating and separation. The condensate storage capacity will be 25,000m3, whereas gas will be compressed for pipeline export to Nyhamna. The field contains gas and condensate reserves of 40-60 GSm3 and is located at a depth of 1,300m of water. The area is characterized by particularly harsh environmental conditions, requiring innovative design solutions to be implemented.




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