Aker BP ASA, operator of production license 442, has concluded the drilling of a wildcat well and three appraisal wells, encountering oil with three of the four wells, according to the Norwegian Petroleum Directorate (NPD).

The wells were drilled 4 km south of the 25/2-10 S, Frigg Gamma Delta, oil and gas discovery in the North Sea. The objective of wildcat well 25/2-18 S was to prove petroleum in Middle Jurassic reservoir rocks belonging to the Vestland Group (the Hugin and Sleipner formation), while the other three appraisal wells—25/2-18 A, 25/2-18 B and 25/2-18 C—were drilled to delineate the discovery, the NPD said Dec. 23.

  • The 25/2-18 S well hit two oil columns in the Hugin Formation of 30 m and 86 m;
  • Appraisal well 25/2-18 A, which was drilled 1 km southeast of 25/2-18 S, also encountered two oil columns in the Hugin Formation, 34 m and 27 m in total;
  • Appraisal well 25/2-18 B, which was drilled 1.4 km north of 25/2-18 S to test the northern segment, encountered the Hugin Formation with aquiferous sandstones. The well is classified as dry; and
  • Appraisal well 25/2-18 C, which was drilled 1 km west of 25/2-18 S, encountered three oil columns in the Hugin Formation totaling 27 m, 23 m and 55 m. A 7-m condensate column was also encountered, the NPD said.

The discovery is between 4 and 12 million standard cubic meters of recoverable oil equivalents based on preliminary estimates, the NPD said. The licensees are assessing the discovery and potential development.

Offshore