Cameroon: Bowleven Preparing for Sapele-2 Testing Program

 

Bowleven, the West Africa focused oil and gas exploration group traded on AIM announces that the Sapele-2 well drilling in the Douala Basin, offshore Cameroon has encountered a total of approximately 35 metres of independently log evaluated net hydrocarbon-bearing pay in the Omicron objectives based on the results of drilling and conventional wireline logs.

A testing programme is expected to commence, subject to attaining various approvals, on completion of the logging programme.

Highlights

• Approximately 35 metres of independently log evaluated net hydrocarbon pay encountered in the Omicron objectives at Sapele-2.

• Preparing for testing programme at Sapele-2.

• Sapele-1ST testing programme underway.

Sapele-2 drilling update

The principal objective of the Sapele-2 well was to appraise the Omicron discoveries encountered in the Sapele-1 exploration well. The well was drilled to a total depth (TD) of 3,749 metres as planned in water depths of 25 metres, penetrating both the Lower and Deep Omicron reservoir objectives at a location around five kilometres South West of the Sapele-1 location.

Bowleven, as operator, provides updates for the reservoir intervals encountered at Sapele-2 below:

Lower Omicron

Based on conventional wireline logs, provisional net pay is independently estimated to be approximately 19 metres, with an average porosity of 17%.

Deep Omicron

Based on conventional wireline logs, provisional net pay is independently estimated to be approximately 16 metres, based on conventional wireline logs, with an average porosity of 17%.

In both intervals the GC tracer indicates the probable presence of oil however due to borehole conditions it was not feasible to recover reservoir fluid samples at this stage. It is intended that both hydrocarbon type and formation pressure will be confirmed during the future test programme.

Forward plan

Further detailed analysis, including test data, is now required to assess the implications of both the Sapele-2 and Sapele-1ST wells on current resource estimates. A testing programme is currently underway on Sapele-1ST and the results are expected in the next two to three weeks. An update on Sapele-2 testing is expected in the next three to four weeks.

Due to the stratigraphic nature of the Omicron fields further drilling will likely be required to determine with greater confidence the potential size of these existing discoveries.

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Source:Bowleven , May 12, 2011; Image:Vantage