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Tuesday, January 5, 2016
Cairn Energy and its JV partners off the coast of Senegal saw the successful testing of the SNE-2 appraisal well. Operations, according to Cairn, were safely and successfully completed following drilling, coring, logging and drill-stem testing (DST). The well is now being plugged and abandoned.
The partners conducted a DST over a 12-meter interval of high quality pay which flowed at a maximum stabilized, but constrained rate of around 8,000bpd, confirming the high deliverability of the principal reservoir unit in the SNE-2 well. An additional DST over a 15-meter interval of relatively low quality “heterolithic” pay flowed at a maximum rate of about 1,000 bpd, confirming that these reservoirs are able to produce at viable rates and thus make a material contribution to resource volumes. Flow was unstable due to the 4.5” DST tubing. Confirmation of correlation of the principle reservoir units between SNE-1 and SNE-2 with the primary reservoirs occurring in the gas cap was as predicted.
Cairn recovered multiple samples of oil and gas to the surface during wireline logs and drill stem tests, with a 216-meter continuous core taken across the entire reservoir interval with 100% recovery. Pressure, log, and seismic data indicate that the hydrocarbon column contains limited segregated reservoir-seal pairs within a continuous connected pressure regime.
The partners will spud the SNE-3 in due course.
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