Equinor ASA has unlocked a discovery within the Svalin discipline on the Norwegian aspect of the North Sea, the Norwegian Offshore Directorate mentioned Thursday.
Properly 25/11-H-1 H yielded “between 0 and 0.1 million customary cubic meters [3.5 million cubic feet] of recoverable oil equal, which is the equal of between 0 and 0.6 million barrels”, the directorate mentioned in a press launch. The effectively was drilled by Odfjell Drilling Ltd’s Deepsea Aberdeen rig.
The event effectively confirmed skinny sandstone layers with “excellent reservoir high quality” within the Balder Formation, which is a part of the Rogaland Group. “The oil within the Balder Formation is presumed to be in strain communication with surrounding reservoir sands within the Heimdal Formation on the Svalin C construction”, the directorate mentioned. “The oil/water contact was not encountered”.
“The licensees will think about whether or not the invention is sufficiently worthwhile for manufacturing”, the director mentioned.
Svalin, which accommodates the invention, is a producing discipline with two buildings: Svalin C and Svalin M. Svalin C is tied again to the Grane set up, which additionally serves the Grane and Breidablikk fields, by a subsea template whereas Svalin M makes use of a multi-branch effectively drilled from Grane.
Svalin, within the central a part of the North Sea, was confirmed 1992 and put onstream March 2014.
The sector, operated by Norway’s majority state-owned Equinor with a 57 p.c stake, produced 49,000 cubic meters (1.7 million cubic ft) of oil equal final 12 months, based on authorities web site Norskpetroleum.no. The opposite companions are Petoro AS with a 30 p.c curiosity and Var Energi ASA with 13 p.c.
Earlier this 12 months Equinor confirmed oil and gasoline within the Heisenberg discovery within the North Sea by wells 35/10-11 S and A. Preliminary information indicated that the scale of the invention was 3.8 million to eight.9 million cubic meters (134.2 million to 314.3 million cubic ft of oil equal), based on a press launch by the Norwegian Offshore Directorate March 21.
In the identical drilling marketing campaign, Equinor additionally proved oil within the Hummer prospect. Hummer and Heisenberg are beneath manufacturing license 827 SB.
Preliminary calculations positioned the scale of Hummer at 100,000 to 600,000 million cubic meters (3.5 million to 21.2 million cubic ft), the directorate mentioned on the time.
“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 directorate mentioned. “The secondary exploration goal was the Hummer prospect within the Balder Formation within the higher Palaeocene to decrease Eocene.
“Since 35/10-11 S encountered the first goal within the water zone, the 35/10-11 A sidetrack was drilled with the first goal of encountering Heisenberg upflank within the oil zone.
Properly 35/10-11 S encountered a 10-meter (32.8 ft) sandstone reservoir of “good” high quality within the Hordaland Group.
“Within the secondary exploration goal within the Balder Formation, the effectively encountered a 3-meter [9.8 feet] oil column in sandstone totaling 23 meters [75.5 feet] with poor to reasonable reservoir high quality”, the directorate added.
In the meantime effectively 35/10-11 A encountered a 12-meter (39.4 ft) sandstone reservoir with reasonable to good high quality within the Hordaland Group based on the directorate.
To contact the writer, e-mail jov.onsat@rigzone.com