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Wednesday, March 8, 2017
Cairn Energy and its partners offshore Senegal saw success in their latest well drilled to appraise the SNE discovery, SNE-5. The well, which was targeting a location in the Upper Reservoirs where two principal units are located within the oil leg, was drilled safely, ahead of schedule, and under budget.
Two drill stem tests (DST) were conducted within the Upper Reservoir units over gross intervals of 18 meters and 8.5 meters and were in line with expectations. DST 1a flowed from an 18-meter interval at a maximum rate of around 4,500 barrels bpd on a 60/64” choke. Two main flows of 24 hours each were performed; the first at about 2,500 bpd on a 40/64” choke, followed by a second at about 3,000 bpd on 56/64” choke
For DST 1b an additional 8.5-meter zone was added and the well flowed at a maximum rate of 4,200 bpd and for 24 hours at an average rate of around 3,900 bpd on 64/64”choke
The SNE-5 well has been plugged and abandoned and the Stena DrillMAX drill ship is moving location to commence operations shortly on the Vega-Regulas (VR-1). The VR-1 has two objectives; an Aptian exploration target and an appraisal objective in the SNE field.
The well will target the Vega-Regulus exploration prospect in the Aptian Carbonates underlying the SNE field which has potential gross mean consolidated prospective resource of more than 100 mmbbls.
In addition, the well will further appraise the SNE field targeting potential incremental resources. The results will help narrow the range of SNE field volumes and also allow the JV time to fully integrate the results of SNE-5 prior to moving to appraisal well SNE-6 to complete the planned interference test.
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