Wintershall North Sea wildcat comes up dry

Wintershall Norge, operator of production license 378, is in the process of completing the drilling of wildcat well 35/12-5 S.

The well was drilled about 15km southwest of the Gjøa field in the North Sea and 80km southwest of Florø.

The purpose of the well was to prove petroleum in reservoir rocks from the Upper Jurassic (the Heather, Sognefjord and Fensfjord formations). Well 35/12-5 S encountered about 10m of sandstone in the Heather formation, 35m of sandstone in the Sognefjord formation and 32m of sandstone in the Fensfjord formation, all with good reservoir quality. It also encountered 9m of sandstone with poor reservoir quality in the Etive formation. The well is dry.

Data acquisition and sampling have been carried out. This is the fifth exploration well in production license 378. The license was awarded in APA 2005.

Well 35/12-5 S was drilled to a vertical depth of 3369m and a measured depth of 3570m below the sea surface and was terminated in the Oseberg formation in the Middle Jurassic.

Water depth at the site is 353m. The well will now be permanently plugged and abandoned.

Well 35/12-5 S was drilled by the Transocean Arctic drilling facility, which is now scheduled to drill wildcat well 6406/12-4 S in production license 586 in the Norwegian Sea, operated by VNG Norge.

Image: map of Well 35/12-5 S/Norwegian Petroleum Directorate

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