LANCASTER, UK – First Subsea Ltd. has completed the installation of subsea mooring connectors for Anadarko Petroleum Corp.’s Heidelberg truss spar platform, which will be moored in 5,310 ft (1,620 m) of water in the Gulf of Mexico.
The 23,000-ton (20,865-metric ton) spar has been moored by nine Series III Ballgrab ball and taper mooring connectors attached to polyester mooring lines. The connector's male mandrels are manufactured in compliance with American Bureau of Shipping (ABS) 2009 approval for specialist subsea mooring connectors.
Ball and taper subsea mooring connectors offer a two-part mooring. A connector receptacle is preinstalled, attached by ground chain to a mooring pile. When the spar arrives on-station the ball and taper mooring connector is simply attached to the mooring line and lowered into the receptacle to complete the mooring line connection.
The Heidelberg spar will have a capacity of more than 80,000 b/d of oil and 2.3 MMcm/d (81 MMcf/d) of natural gas.
First Subsea said it is the first manufacturer of offshore mooring connectors to achieve ABS type approval for the design and manufacture of large-scale forgings more than 500 mm (20 in.) in diameter.
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