Cairn Energy reported the results of the SNE-4 appraisal well offshore Senegal on May 19. Operations were completed following drilling, coring and logging, and the well is now being plugged and abandoned.
The SNE-4 well was appraising the eastern extent of the SNE Field discovered in 2014 and confirming the nature of the oil zone’s upper reservoirs.
- The extension of reservoirs in the eastern extent of the SNE Field, more than 5 kilometers (km) to the east and downdip of SNE-3 was confirmed;
- Oil-bearing Upper Reservoir sands of similar quality to those encountered as gas bearing elsewhere in the field were confirmed;
- The uppermost gas sands first encountered in SNE-3 and BEL-1 were also present and gas bearing in SNE-4;
- Correlation and presence of the principal reservoir units between each of the wells across the whole field was confirmed;
- A gross oil column of about 100 meters (m), similar to SNE-1, SNE-2, SNE-3 and BEL-1, was encountered;
- There were 108 m of continuous core taken across the oil bearing reservoir interval with 100% recovery;
- There were multiple samples of gas, oil and water recovered to surface; and
- Initial indications confirm similar 32 degree API oil quality as seen across the field.
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