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Tullow: Calao-1X exploration well encounters non-commercial condensate

BY RAZAK MUSAH BABA

LONDON -- Tullow Oil said that the Calao-1X exploration well in the CI-103 license offshore Cote d' Ivoire, where Tullow is operator and has a 30% carried interest, has encountered thin condensate gas bearing reservoirs in an Upper Cretaceous deepwater channel system.

The well is the second deepwater exploration well drilled in the CI-103 license and targeted an Upper Cretaceous channel system northwest of the Paon-1X oil discovery, which was drilled in 2012.

Good quality reservoir sandstones were found in this objective but they were water bearing at this location. 5 m of condensate gas bearing sandstones were found in a deeper objective.

The well was then sidetracked, targeting a better developed reservoir unit down dip. Good quality water bearing sandstones were intersected at that level in the sidetrack. Pressure data indicates that this zone may be in communication with the condensate encountered in the original Calao-1X well. Following completion of logging operations the well will be plugged and abandoned.

The Seadrill West Leo dynamically positioned semi submersible drilled Calao-1X to a final depth of 4,570 m in water depths of 1,906 m. The Sidetrack was then drilled to a final depth of 4600 million below sea level.

Tullow (30% carried interest) operates the CI-103 license and is partnered by Anadarko (55%) and the Petroci (5% plus a 10% carried interest).

Dow Jones Newswires

05/31/2013

 

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