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30.03.2011 Business & Finance

Tullow discovers more oil

By Ghanaian Chronicle
Angus McCoss, Exploration DirectorAngus McCoss, Exploration Director
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Tullow Oil plc (Tullow) announces that the Teak-2 exploration well in the West Cape Three Points licence offshore Ghana has discovered 27 metres of net hydrocarbon bearing Campanian and Turonian reservoirs.

The well was targeting an undrilled fault block between the Jubilee field and the Teak-1 discovery, located 1.8 km southwest of the recent Teak-1 well, and 3.5 km northeast of the Mahogany-2 well. Results of drilling, wireline logs, and samples of reservoir fluids, confirm that the well had intersected five intervals containing high quality oil, gas, and gas-condensate.

Six metres of net oil and gas pay were encountered at the top of good quality Campanian reservoirs, over 100 metres thick.

Jubilee equivalent Turonian reservoirs contain 21 metres of net hydrocarbon pay, 16 metres of which is rich gas. Static pressure data suggests this potentially forms a gas cap to the Jubilee oil field. Future analyses and pressure interference testing will determine hydrocarbon contacts and the extents of these two adjoining fields.

The Atwood Hunter rig drilled Teak-2 to a total depth of 3,409 metres in water depths of 885 metres. On completion of operations, the well will be suspended for future use and the rig will move to drill the Banda-1 well which is targeting Campanian and Cenomanian reservoirs in the east of the licence.

Tullow has a 22.896% interest in the West Cape Three Points licence and its partners are Kosmos Energy (Operator) and Anadarko Petroleum Corporation (30.875% each), the E.O. Group (3.5%), Sabre Oil & Gas Holdings Ltd (1.854%) and the Ghana National Petroleum Corporation (GNPC) (10% carried interest).

Commenting, Angus McCoss, Exploration Director, said: 'The discovery of hydrocarbons at the Teak-2 location is a very good result, providing important data for the future development of the Jubilee field. The well demonstrated that the Teak-2 discovery is not part of the Teak-1 discovery but is potentially a Jubilee field gas cap. The Campanian reservoirs at Teak-2 confirm significant up-dip potential in the greater Teak area. Our West Cape Three Points E&A campaign is continuing to deliver and we now look forward to drilling the Banda-1 wildcat well.'

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