The hydrocarbons produced in the Blake field are transported via flow lines to a subsea production manifold, where they are then transported via 10 in. and 12 in. production lines to the Bleo Holm Fpso Market, which is located 9.5 kilometers away. The fluids from the Ross field and the Blake fluids are processed on the FPSO.
On the Bleo Holm, the produced oil, gas, and water are separated, and the oil is temporarily stored onboard before being exported by shuttle tanker. The existing Ross tie-in to the 24 in. Frigg UK pipeline transports the excess gas to the St. Fergus gas terminal.
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In order to permit onshore topside modifications to the Bleo Holm unit, production from the Ross oil field was suspended in March 2001. The vessel returned to the field for offshore hookup ahead of schedule, completing these modifications, allowing production to resume well ahead of schedule (and within budget).
The FPSO unit is an 'Aframax' big hauler frame, exceptionally intended for FPSO obligation, with a twofold base and twofold sides. It has a design life of 20 years and can keep certificates for at least eight years without leaving the field.
The flare boom and turret mooring system, which are intended to moor the Bleo Holm permanently in any weather, are located at the front of the unit. Flexible risers and umbilicals can be installed in large, free spaces provided by the anchor leg pattern. J-tubes support the risers for gas and liquids in the turret, as well as umbilicals for power, controls, and chemicals.