it took 6 weeks for this25 Jun 2018 12:03
0 January 2011
Bowleven plc ('Bowleven' or 'the Company')
Further drilling success with Sapele-1 discovery well
Sapele-1 Exploration Well, Block MLHP-5, Etinde Permit, Offshore Cameroon
Bowleven, the West Africa focused oil and gas exploration group traded on AIM, announces that the Sapele-1 exploration well drilling in the Douala Basin, offshore Cameroon has encountered further hydrocarbon-bearing pay in both the Tertiary and Cretaceous objectives based on the results of drilling, wireline logs, samples of reservoir fluid and pressure data.
The well was designed to intersect multiple stacked objectives of Tertiary to Cretaceous age. Wireline log evaluation indicates all of the five objectives to be hydrocarbon-bearing with net pay confirmed in three, based on fluid samples. The well has reached a current total depth (TD) of 4,539 metres and the intention is to set liner and drill onwards, subject to attaining various approvals, on completion of current logging activities.
Highlights
· All five target objectives indicated to be hydrocarbon-bearing from log evaluation; net pay confirmed in three post sampling.
· Increased oil in-place estimates for Deep Omicron; P90 to P10 now 65 to 430 mmbbls.
· Cross-cut objective encountered 4 metres of log evaluated net hydrocarbon pay.
· Gas condensate encountered in Epsilon Complex validates Cretaceous prospectivity; extends play fairway significantly offshore.
· Further Cretaceous reservoir potential identified; Sapele-1 drilling planned to continue on completion of current logging activities.
· Epsilon Complex volumetrics to be updated following integration and evaluation of extensive well data.
· Preparing for testing and subsequent appraisal drilling/sidetrack activity.
· Group cash at 31 December 2010 circa $190 million; well positioned to fund forward work programme.
Drilling update
The Sapele-1 exploration well location, on block MLHP-5 in the Etinde Permit, was selected to intersect multiple independent exploration targets from the proven Miocene fairway down to the deeper Cretaceous fairway from a single location. This required that a number of the targets be intersected at sub-optimal locations. Consequently, while the well has confirmed the prognosed targets as hydrocarbon-bearing, this is believed to have occurred at the extremities of Lower and Deep Omicron and the Cretaceous Epsilon Complex.
Since the announcement on 25 November 2010, the well, which is drilling in shallow water depths of around 20 metres, has been drilled to a current TD of 4,539 metres and has drilled through the Cross-cut event and into the Cretaceous.
A principal objective of the Sapele-1 well was to prove the concept of the Cretaceous play offshore Douala Basin. The well has now confirmed the presence of reservoir and hydrocarbons in the Cretaceous, offshore Douala Basin, and as a resu