Equinor ASA has detailed the Heisenburg oil and gasoline discovery in wells 35/10-11 S and A within the North Sea.
The corporate’s preliminary calculations point out that the dimensions of the invention is between 134.2 million and 314.3 million cubic ft (3.8 million and eight.9 million normal cubic meters) of oil equal, similar to 24 million to 56 million barrels of oil equal (MMboe).
Useful resource estimates for Heisenberg previous to drilling had been between 144.8 million and 317.8 million cubic ft (4.1 million and 9.0 million normal cubic meters) of oil equal, in line with a information launch Thursday from the Norwegian Offshore Directorate (NOD).
Equinor has additionally confirmed oil within the Hummer prospect, in line with the discharge. Preliminary calculations place the dimensions of Hummer between 3.53 million and 21.2 million cubic ft (0.1 million and 0.6 million normal cubic meters of oil equal).
The wells are the primary and second ones drilled in manufacturing license 827 SB, which is further acreage for manufacturing license 827 S the place the unique discovery was made. The drilling was carried out utilizing the Deepsea Stavanger rig about 87 miles (140 kilometers) northwest of Bergen, the NOD stated.
The first exploration goal for effectively 35/10-11 S was to delineate the Heisenberg discovery made in 35/10-9 within the decrease Hordaland Group within the Eocene. The secondary exploration goal was the Hummer prospect within the Balder Formation within the higher Palaeocene to decrease Eocene, in line with the discharge.
Properly 35/10-11 S encountered a sandstone reservoir totaling about 32.8 ft (10 meters) with good reservoir high quality within the Hordaland Group. The reservoir was aquiferous with traces of hydrocarbons. Within the secondary exploration goal within the Balder Formation, the effectively encountered a 9.8-foot (3-meter) oil column in sandstone totaling 75.5 ft (23 meters) with poor to average reservoir high quality. The effectively was drilled to a measured depth of 6,079 ft (1,853 meters) beneath sea stage, and was terminated within the Rogaland Group within the Palaeocene.
In the meantime, Properly 35/10-11 A encountered a sandstone reservoir totaling about 39.4 ft (12 meters) with average to good reservoir high quality. The reservoir has an oil and gasoline column within the Hordaland Group. The gasoline/oil contact was encountered 5,154 ft (1571 meters) beneath sea stage, and the oil/water contact was confirmed 5,170.6 ft (1,576 meters) beneath sea stage. The effectively was drilled to a measured depth of 1690 metres beneath sea stage, and was terminated within the Hordaland Group within the Eocene.
Manufacturing license 827 SB was awarded within the Awards in Pre-defined Areas (APA) in 2015, whereas the extra acreage, 827 SB, was awarded in APA 2022, the NOD stated. Since then, just a few corporations have offered out and the present licensees are Equinor, with a 51 p.c stake, and DNO Norge with a 49 p.c stake.
That is the second discovery within the North Sea lately. Final week, Harbour Power Norge AS and its companions confirmed a gasoline discovery in effectively 15/9-25 within the North Sea, about 130.5 miles (210 kilometers) west of Stavanger.
The effectively, which was drilled utilizing the Noble Integrator rig, is the primary one in manufacturing license 1138, which was awarded in APA 2021. The general gasoline quantity was calculated between 35.3 million and 105.9 million cubic ft (1 million and three million normal cubic meters) of recoverable oil equal.
To contact the writer, e mail rocky.teodoro@rigzone.com