Offshore staff
STAVANGER, Norway – Equinor has found oil and gas in the Swisher prospect in the North Sea.
Recoverable resources are estimated to be in the range of 13-38 MMboe.
The semisubmersible West Hercules drilled wells 35/11-24 S, 35/11-24 A, and 35/11-24 B on license 248 C, which is about 7 km (4 mi) west of the Fram field and 130 km (81 mi) northwest of Bergen. Water depth is 356 m (1,168 ft).
According to Equinor, the purpose of the wells was to prove petroleum in the Upper Jurassic rocks of the Heather formation.
Well 35/11-24 S encountered a 42-m (138-ft) hydrocarbon column in sandstone layers in the Heather formation, of which 21-m (69-ft) interval were gas and 7 m (23 ft) in sandstone of mainly moderate to good reservoir quality and 21 m interval were oil and 17 m (56 ft) in sandstone of good to moderate reservoir quality.
Well 35/11-24 A encountered a 25-m (82-ft) gas column and up to 6 m (20 ft) in moderate quality sandstone in the Heather formation. Well 35/11-24 B encountered an oil column of minimum 3 m (10 ft) in good-quality sandstone in the Heather formation.
The wells were not formation-tested; however, extensive data acquisition and sampling were carried out. All wells were concluded in the Heather formation from the Late Jurassic epoch at a depth of 3,000-3,600 m (9,842-11,811 ft). The wells were P&A’d.
Equinor and its license partners Petoro AS and Wellesley Petroleum AS will evaluate the discovery for a potential tie-in to existing infrastructure in the area.
The West Hercules is preparing to drill wildcat well 6407/1-8 S on the Apollonia prospect in production license 263 D in the Norwegian Sea.
09/29/2020
