Total Makes Gas Discovery in the Norwegian Sea

The French Oil Company Total Has Completed Drilling Two Wells in the Norwegian Sea, Making a Small Gas Discovery in the Process.

The Norwegian Petroleum Directorate said on Friday that Total has completed drilling the pioneering well 6406 / 6-6 S and the appraisal well 6406 / 6-6 A. The wells were drilled about 40 km southeast of the Kristin field in the southern part of the country. Norwegian Sea. The main exploration target of the well was the demonstration of oil in the Middle Jurassic reservoir rocks (Garn and Ile formations). The secondary exploration target of the well was the demonstration of oil in the Lower Jurassic reservoir rocks (Tofte formation).

In the primary exploration target, well 6406 / 6-6 S found gas in a sandstone layer of about three meters, as well as gas traces deep in the center of the Ile formation, with poor reservoir quality. The gas/water contact was not found. The Ile formation is about 145 meters thick, of which about 80 meters are sandstone layers. In the Garn formation, there were thin layers of tight sandstone reservoir, totaling 20 meters.

The secondary exploration target in the Tofte formation was about 25 meters of aquifer sandstone reservoir, mainly with poor reservoir quality.

In appraisal well 6406 / 6-6 A, the Ile formation was thinner, with a total of about 55 meters of sandstone reservoir, and the quality of the reservoir rocks was confirmed. Technical problems prevented the measurements that could confirm a gas column. In the Garn formation, there were thin layers of tight sandstone reservoir, totaling 25 meters.

Neither well was tested for formation, but extensive data acquisition and sampling were conducted at well 6406 / 6-6 S, the NPD said.

Preliminary estimates place the size of the discovery between 0.4 and 2.5 million standard cubic meters (Sm3) of recoverable oil equivalents.

The licensees in production license 255 B will evaluate the discovery alongside other nearby discoveries and prospects regarding further follow-up.

These are the second and third exploration wells in production license 255 B. The license was carved out of production license 255 (granted in the 16th licensing round) on May 19, 2016.

Well 6406 / 6-6 S was drilled to respective vertical depths and measurements of 4784 and 4877 meters below sea level, and well 6406 / 6-6 A was drilled to respective vertical depths and measurements of 4659 and 4835 meters below sea level. Both were completed in the Ror formation of the Lower Jurassic.

The water depth is 265 meters. The wells were permanently plugged and abandoned.

Wells 6406 / 6-6 S and 6406 / 6-6 A were drilled by the semi-submersible drilling rig Scarabeo 8, which is currently drilling the pioneering well 24 / 9-14 S in production license 869 in the central part of the North Sea, where Aker BP ASA is the operator.