Rig: Sedco 702

Name Sedco 702
Owner Transocean Offshore Gulf of Guinea II Limited
Manager Transocean Offshore Deepwater Drilling Inc.
Rig Type Semisub
Sub Type Deepwater Floater
Jackup Type --
Max Water Depth (ft) 6562
Max Drill Depth (ft) 25000
Dimensions (ft) 355 x 245 x 130
Leg Length (ft) --
Competitive Yes

Current Location

Country --
Region --

Drilling Equipment

Drawworks Type National Oilwell Varco E-3000
Drawworks HP 3000
Mud Pumps Type National Oilwell Varco; Lewco A-1700-PT Triplex; W-446 Triplex
Top Drive National Oilwell Varco TDS-4S
Hookload Capacity (lbs) 1300000

Rig Construction Details

Rig Design Earl & Wright
Rig Model SEDCO 700
Year Built 1973
Country of Build USA
Yard Name Avondale Shipyard
Group Yard Name Odgen Corporation

Rig Contract Details

Operating Status Retired
Operator

Rig Images

News

21 Jul 2016

Seco 702 Held for Sale

According to Transocean’s latest fleet status report (July 2016), the deepwater floater, Sedco 702, is held for sale and will be recycled in an environmentally responsible manner.

21 Oct 2010

Onyina-1 exploration well finds water bearing reservoirs

Tullow Oil plc (Tullow) announces that the Onyina-1 exploration well in the Deepwater Tano licence offshore Ghana encountered water bearing reservoirs. The Onyina-1 well was drilled to explore a large, high-risk, Campanian prospect between the Tweneboa and Jubilee fields in the northeast of the Deepwater Tano Licence. It intersected 49 metres of good quality sandstone reservoir, on prognosis, however they were water bearing at this location. The Sedco-702 dynamically positioned semi-submersible rig drilled Onyina-1 to a total depth of 2,730 metres in water depths of 828 metres. On completion of operations, the rig will move to the Jubilee Unit to assist in the preparations for first oil later in 2010. Tullow (49.95%) operates the Deepwater Tano licence and is partnered by Kosmos Energy Ghana (18%), Anadarko Petroleum (18%), Sabre Oil & Gas (4.05%) and the Ghana National Petroleum Corporation (GNPC) (10% carried interest). Commenting today, Angus McCoss, Exploration Director, said: "The negative test of the Campanian reservoirs in the Onyina prospect enables further refinement of our exploration and relinquishment strategy offshore Ghana. Good quality Campanian reservoir sands were found as predicted, however the lack of hydrocarbons at this location highlights the high risks of charging and trapping oil in this secondary play. Our main focus remains on the lower risk primary play, the deeper more prospective Turonian reservoirs, where we have had such outstanding success with Jubilee, Tweneboa and Owo."

13 Sep 2010

Owo-1 sidetrack confirms major oil discovery

Tullow Oil plc (Tullow) announces that the Owo-1 exploration sidetrack in the Deepwater Tano licence offshore Ghana has significantly extended the column of high quality light oil discovered by the Owo-1 well. Results of drilling, wireline logs and samples of reservoir fluids confirm that Owo is a major new oil field. The Owo-1 well encountered 53 metres of net oil pay and the sidetrack, drilled 0.6 km east of the Owo discovery well, encountered an additional 16 metres of net oil pay in the lower part of the same channel system. Pressure data indicates that this oil pay is in communication with the reservoirs penetrated in the Owo-1 well and confirms at least 69 metres of total net oil pay in a substantial gross oil column of 200 metres. Beneath the Owo oil field, 13 metres of net condensate pay was also discovered, with an additional 6 metres of net gas pay logged in the deepest sand encountered. No water was encountered in any of the hydrocarbon bearing reservoirs in either well. Following completion of logging operations the well will be suspended for future use in appraisal and development. The Sedco-702 dynamically positioned semi-submersible drilled the Owo-1 sidetrack to a final depth of 3,998 metres in water depths of 1,428 metres. On completion of operations, the rig will remain in the Deepwater Tano block to drill the Onyina-1 exploration well which targets a large Campanian prospect between the Tweneboa and Jubilee fields. Tullow (49.95%) operates the Deepwater Tano licence and is partnered by Kosmos Energy Ghana (18%), Anadarko Petroleum (18%), Sabre Oil & Gas (4.05%) and the Ghana National Petroleum Corporation (GNPC) (10% carried interest).

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