Rig: Sedco 711

Name Sedco 711
Owner Caledonia Offshore Drilling 711 Limited
Manager Transocean Offshore Deepwater Drilling Inc.
Rig Type Semisub
Sub Type Midwater Floater
Jackup Type --
Max Water Depth (ft) 1800
Max Drill Depth (ft) 25000
Dimensions (ft) 295 x 249 x 130
Leg Length (ft) --
Competitive Yes

Current Location

Country UK
Region NWECS

Drilling Equipment

Drawworks Type National Oilwell Varco E-3000
Drawworks HP 2500
Mud Pumps Type Continental Emsco FB-1600 Triplex
Top Drive National Oilwell Varco TDS-5
Hookload Capacity (lbs) 1300000

Rig Construction Details

Rig Design Earl & Wright
Rig Model SEDCO 711
Year Built 1982
Country of Build South Korea
Yard Name Ulsan Shipyard
Group Yard Name Hyundai Heavy Industries (HHI)

Rig Contract Details

Operating Status Cold Stacked
Operator --

Rig Images


12 Dec 2003

Cong well abandoned

Statoil Exploration Ireland has completed exploratory drilling in the Cong prospect off north-west Ireland without success. The exploration well has been plugged and abandoned. Drilling was carried out by the Sedco 711 semi-submersible rig on contract from Transocean. The well data will now be analysed to ascertain whether further exploration of the area would be worthwhile. The Cong prospect is located in the Slyne basin. Statoil is operator with a 49.9 per cent interest. The other licensees are Shell E&P Ireland (35.1 per cent) and Murphy Ireland Offshore (15 per cent).

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