Fossil Energy – Mooring
InterMoor successfully provided mooring engineering and offshore support of the FPU Argos.
Subsea 7 is the main contractor for the Engineering, Procurement, Construction and Installation (EPCI) of the project on behalf of bp.
The FPU was built for the Mad Dog 2 field in the deep water Gulf of Mexico, in water depth of about 1,360m.
Subsea 7, with InterMoor’s support, first performed the mooring line pre-lay, installing over 8,220m of chain.
The team then towed the FPU from Ingleside, Texas to its final offshore site in Green Canyon and hooked up the FPU to the pre-laid mooring lines using Island Offshore’s anchor handling vessel Island Victory.
InterMoor’s work scope also included equipment marshalling and dock services from their shore base in Fourchon, Louisiana.
The mooring system is a 12-point mooring system with three lines arranged in each corner of the FPU. Each mooring line consists of a suction anchor, a 171mm R4S ground chain segment, two polyester rope segments and a 171mm R4S platform chain segment.