Latest SNE appraisal well offshore Senegal shows strong results

Offshore staff

EDINBURGH, UK – Cairn Energy has completed testing of the SNE-3 appraisal well offshore Senegal.

The well is being P&A’d following drilling, coring, logging, and two drillstem tests (DST). 

DST 1a flowed at a maximum rate of ~5,400 b/d and a main flow rate of ~4,000 b/d over a 24-hour period from a 15-m (49-ft) zone. 

For DST 1b an additional zone of 5.5 m (18 ft) was added and a combined maximum rate of ~5,200 b/d measured, with an associated main flow rate of ~4,500 b/d over a six-hour period. Both main flow periods used a 56/64-in. choke.

The Ocean Rig Athena drilled SNE-3, 3 km (2 mi) south of the SNE-1 discovery well, in around 1,180 m (3,871 ft) of water.

Cairn’s initial results confirm similar reservoir quality and correlation of the principal reservoir units between SNE-1, SNE-2, and SNE-3. Initial indications confirm the same 32° API oil quality as seen in SNE-1 and SNE-2.

The company expects to issue revised resource estimates for the SNE oil field soon.

Cairn Energy CEO Simon Thomson said: “Cairn is delighted with the flow rates from the latest well in the Senegal appraisal program, which validate the scale and growth potential of the SNE field

“The results have demonstrated the ability of the upper reservoirs to flow at commercially viable rates and we eagerly look forward to the results of the BEL-1 well which will commence operations shortly.”   

Senegal PSC partners are Cairn Energy plc (operator) 40%, ConocoPhillips 35%, FAR 15%, and Petrosen 10%.


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