Significant discovery at Tweneboa-1 exploration well offshore Ghana

abarrelfullabarrelfull wrote on 06 Aug 2013 06:01
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9 Mar 2009

Tullow Oil plc (Tullow) announces that the Tweneboa-1 exploration well, drilled in the Deepwater Tano licence offshore Ghana, has discovered a significant highly-pressured light hydrocarbon accumulation.

The well encountered 21 metres of net pay and was drilled to a depth of 3,593 metres and is currently being deepened to further assess the discovery and the up-dip limit of a potential deeper fan system.

The well was optimally located to penetrate multiple targets, including the edge of an undrilled major Turonian fan system. Further drilling will now be required to test core areas within this potentially giant stratigraphic trap where thicker Turonian reservoir sections are mapped. The upside area of approximately 200 square kilometres includes two de-risked prospective parts, Owo and Ntomme.

The Tweneboa-1 well was drilled by the Eirik Raude deepwater rig in a water depth of 1,148 metres some 25 kilometres west of the Jubilee Field.
Tullow (49.95%) operates the Deepwater Tano licence and is partnered by Kosmos Energy (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:
"Tweneboa is another outstanding discovery offshore Ghana which maintains our 100% success rate in the region. Substantial upside has been identified and a material appraisal programme will follow. This result has the potential to deliver yet another transformational growth step for Tullow."


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