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First Subsea mooring connectors for World’s largest Spar Platform


Published Oct 17, 2013
First Subsea Ltd-9

Subsea mooring specialist First Subsea has been awarded a contract by Hyundai and Technip to supply the mooring line connectors for Statoil’s Spar platform in the Aasta Hansteen gas field, in the Norwegian Sea. The platform will be the world's largest Spar platform and the first of its kind on the Norwegian continental shelf.

The Spar platform will be moored with 17 Series III Ballgrab subsea mooring connectors at 1,300 m (4,290 ft) water depth approximately 300 kilometres west of Bodø in northern Norway. The connector's male mandrels are manufactured in compliance with American Bureau of Shipping (ABS) 2009 Approval for specialist subsea mooring connectors. First Subsea is the only manufacturer of offshore mooring connectors to achieve ABS type approval for the design and manufacture of large-scale forgings over 500mm in diameter.

The Aasta Hansteen Spar platform will be the largest Spar ever built with a total hull length of 198m. When in production in 2017 it is expected to be capable of producing 23 million cubic metres of gas per day. It has a storage capacity of 160,000 barrels of condensate. The topside dry weigh will be 23,000 metric tonnes, with accommodation for 100 personnel, and the hull dry weight will be 46,000 metric tonnes.

Tags: First Subsea Ltd




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