Senegal: Cairn completes drilling

Cairn Energy has successfully completed the SNE-4 appraisal well in the Sangomar Offshore Block and released the Ocean Rig Athena drillship. The well is being plugged and abandoned following drilling, coring and logging. The SNE-4 well was drilled to appraise the eastern extent of the SNE field discovered in 2014 and to confirm the nature of the upper reservoirs in the oil zone. Cairn said the well confirmed the extension of reservoirs in the eastern extent of the SNE field, more than 5km to the east and downdip of SNE-3, and confirmed oil-bearing Upper Reservoir sands of similar quality to those encountered as gas-bearing elsewhere in the field.