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Floating Production Storage and Offloading Vessel

Folding and securing the fairleads

Ramform Banff was built as an oil production, storage and offloading vessel (FPSO) and it features a central turret mooring system. This turret is used to anchor the vessel as well as to produce and offload the oil.

The turret mooring system is a 10-point system. The riser system contains 2 production, 1 injection and 2 flexible lines; the system can be expanded to accommodate 10/15 risers.

The vessel was built to withstand a 100-year storm with wave heights of up to 26.6 metres (87 ft). It can anchor in water depths of more than 120 metres.

Classified by Det Norske Veritas (DNV)

Before the vessel docked at Blohm + Voss for refitting, Nordseetaucher GmbH was contracted to fold and secure the fairleads - the deflection pulleys located at the bottom end of the turret - as well as supervising the lifting of the turret from underwater. When the vessel undocked the fairleads were unlocked and returned to their original position. We also carried out a number of underwater maintenance jobs at the riser openings.

Builder Hyundai Mipo yard, Korea/Aker McNulty
Owner/Manager Petroleum Geo Services
Length oa 120.40 m
Length bp 107.80 m
Breadth (moulded) 53.40 m
Depth 16.00 m
Draught 11.50 m
Deadweight 22,000 dwt
Oil Storage 120,000 barrels
Oil Production 60,000 b/d
Topsides payload 3500 tonnes
Accommodation 40
Main engines 2 x 3530 kW water-cooled diesel
Output 7060 kW
Service Speed 12.0 knots