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Tuesday, January 19, 2016
Partners in the Rufisque, Sangomar and Sangomar Deep offshore PSC offshore Senegal (Cairn Energy, ConocoPhillips, FAR Ltd., and Petrosen) have seen the second appraisal well to be drilled on the SNE oil field reentered with the objective of drilling to planned total depth. The SNE-3 well will further evaluate the potential of the world-class SNE oil field and follows the successful SNE-2 appraisal well.
The SNE-2 successfully flowed oil at 8,000 bpd constrained and estimated at over 10,000 bpd on an unconstrained basis. SNE-2 appears to have the same high quality 32 degree API oil seen in SNE-1. The oil flows from the SNE-2 drill stem testing (DST) were important in demonstrating that the SNE field is a world class oil discovery with the ability to flow oil at commercially viable rates as well as highlighting the potential of the upper “heterolithic” reservoir units to make a material contribution to SNE resource and production volumes.
The SNE-3 well will be drilled in approximately 1,180 meters of water to a total vertical depth sub-sea of approximately 2,782 meters and is expected to include an extensive evaluation program involving coring, logging and flow testing. SNE-3 was previously drilled to a depth of 1,755 meters by the Ocean Rig Athena prior to the spud of SNE-2.
The SNE-3 is expected to reach TD after recommencement of drilling and after the completion of coring in the latter part of February. It is expected wireline logs will then be run followed by a DST program.
A key aim of the SNE appraisal program is to progress towards proving a minimum economic field size for the SNE discovery, which is estimated to be approximately 200 million barrels of recoverable oil as well as determining flow rates for the planning of a future development.
In addition, the BEL-1 well, which will evaluate the untested Buried Hills play to test the Bellatrix exploration prospect, will also appraise the northern portion of the SNE oil field. BEL-1 will be drilled after completion of SNE-3.
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