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22/07/2010 Wintershall Norge ASA, operator of production licence 475BS, has completed the drilling of wildcat well 6406/3-8.

The well was drilled about 20 kilometres southeast of the ├ůsgard field and 10 kilometres northwest of the Tyrihans field in the Norwegian Sea.

The primary exploration target for the well was to prove petroleum in Middle Jurassic reservoir rocks (the Garn formation). The secondary exploration target was to prove petroleum in Middle to Lower Jurassic reservoir rocks (the Ile and Tilje formations).

Oil with associated gas was proven in the Garn formation, with better than expected reservoir rocks and reservoir quality. Reservoir rocks were also encountered in the Ile and Tilje formations as expected, but they were water-bearing. Preliminary estimates of the size of the discovery indicate 10-20 million standard cubic metres (Sm3) of recoverable oil and 2-5 billion Sm3 of recoverable gas.

The well was not formation-tested, but extensive data acquisition and sampling have been carried out.

The licensees in production licence 475BS (link to fact pages) will consider producing the discovery together with other nearby discoveries.

The well is the first exploration well in production licence 475BS, which was awarded in APA 2008.

The well was drilled to a vertical depth of 4216 metres below the sea surface, and it was terminated in the Tilje formation in the Lower Jurassic. Water depth at the site is 303 metres. The well will now be permanently plugged and abandoned.

Well 6406/3-8 was drilled by the Songa Delta drilling facility, which will now proceed to production licence 341 in the North Sea to drill wildcat well 24/12-6 S where Det norske oljeselskap is the operator.


Updated: 03/01/2013