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Equinor makes gas and condensate discovery near Kvitebjørn field

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Oilfield Technology,

The Norwegian Petroleum Directorate (NPS) has announced that Equinor, operator of production licence 878, is in the process of concluding the drilling of wildcat well 30/2-5 S.

Equinor makes gas and condensate discovery near Kvitebjørn field

The well was drilled about 17 km south of the Kvitebjørn field in the North Sea and 160 km northwest of Bergen.

The objective of the well was to prove petroleum in reservoir rocks from the Middle Jurassic Age (the Brent Group).

Well 30/2-5 S encountered a gas column of about 160 m in the Brent Group (the Tarbert, Ness, Etive and Rannoch Formations), of which 60 m comprise effective sandstone reservoir: the Ness Formation has 30 m of sandstone with poor to moderate reservoir quality, while the Etive Formation has 15 m of sandstone, primarily of moderate quality. The Tarbert Formation has 10 m of sandstone with poor to moderate reservoir quality, while the Rannoch Formation has 5 m of poor quality sandstone.

Preliminary estimates place the size of the discovery between 3 and 10 million m3 of recoverable oil equivalents. The licensees will consider following up the discovery in an overall assessment of the area.

The well was not formation-tested, but extensive volumes of data have been acquired, and samples have been taken.

This is the first exploration well in production licence 878. The licence was awarded in APA2016.

Well 30/2-5 S was drilled to a vertical depth of 4359 m below sea level and a measured depth of 4390 m. The well was terminated in the Drake Formation from the Early Jurassic Age.

Water depth at the site is 142 m. The well will be permanently plugged and abandoned.

Well 30/2-5 S was drilled by the West Hercules drilling facility, which will now drill wildcat wells 35/11-24 S and A in production licence 248 C in the northeastern part of the North Sea, where Equinor is the operator.

The licence owners of production licence 878 are Equinor (60%), Source Energy (20%) and Wellesley Petroleum (20%).

Image courtesy of Equinor.

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