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Equinor makes discovery near Visund field in northern North Sea

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Exploration well 34/6-5 S was drilled on the Garantiana West prospect, approximately 10 km of the Visund field in the North Sea.

Equinor and partners Vår Energi and Aker BP have struck oil in production license 554. Recoverable resources are estimated at between 1.3 and 3.6 million standard cu m of oil equivalent, corresponding to 8-23 million BOE.

“This is the first Equinor-operated well in the production license, and the fifth discovery on the Norwegian Continental Shelf this year. The discovery is in line with our roadmap of exploring near existing infrastructure in order to increase the commerciality,” said Rune Nedregaard, Senior Vice President, Exploration and Production South, at Equinor.

Exploration wells 34/6-5 S and 34/6-5 ST2 on the Garantiana West prospect were drilled approximately 10 km of the Visund field, and 120 km west of Florø.

The primary exploration target for exploration well 34/6-5 S was to prove hydrocarbons in the Cook formation from the early Jurassic period. The secondary exploration target was to examine the hydrocarbon potential in the Nansen formation from the early Jurassic/late Triassic period.

Well 34/6-5 S encountered a total oil column of 86 m in the Cook formation. An about 60-m effective medium-good quality sandstone reservoir was found.

Exploration well 34/6-5 S also encountered sandstones in the Nansen formation, but the reservoir is aquiferous, and the exploration target is classified as dry.

A successful formation test has been performed. The test indicates good flow qualities with stable flowing pressure and low pressure drop, in addition to consistent pressure buildup.

The licensees will consider tying in the discovery to the Garantiana field development project.

Due to technical problems in the main trajectory a technical side-step was made through well 34/6-5 ST2. The well was formation tested, and extensive data acquisition and sampling were carried out.

This is the fifth exploration well in production license 554. The license was awarded on 19.02.2010 in APA2009. Well 34/6-5 S was drilled to a vertical depth of 3952 m below sea level and completed in the Nansen formation from the late Jurassic period. Well 34/6-5 ST2 was drilled to a vertical depth of 3750 m below sea level, and completed in the upper part of the Amundsen formation. Drilled in 285 m of water the wells have been permanently plugged and abandoned.

Well 34/6-5 S was drilled by Seadrill‘s West Hercules semisubmersible, which will now drill the pilot hole in production licenses PL272 and 035 (near the discoveries 30/11-8 S (Krafla) and 30/11-9 S (Askja)) in the North Sea.

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