Wintershall Norge has made a small oil discovery on the Imsa prospect in wildcat well 6406/2-8 in production license 589 in the Norwegian Sea, 190km northwest of Kristiansund.
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Image from Wintershall. |
The objective of the well was to prove petroleum in Lower to Middle Jurassic reservoir rocks (Båt and Fangst groups), according to the Norwegian Petroleum Directorate (NPD).
The well encountered two oil columns over an about 130m interval in the Båt and Fangst groups in sandstone of generally poor reservoir quality. Preliminary estimation of the size of the discovery is between 1-8 MMcm of recoverable oil equivalents.
The licensees will assess the discovery with regard to further follow-up. The well was not formation tested, but extensive data acquisition and sampling have taken place.
This is the first exploration well in PL 589, which was awarded in APA 2010. The well was drilled to a vertical depth of 4655m below the sea surface, and was terminated in red sandstone layers in the Middle to Upper Triassic (Red beds). Water depth is 262m. The well will now be permanently plugged and abandoned.
Well 6406/2-8 was drilled by the Transocean Arctic semisubmersible drilling facility, which will now drill wildcat well 35/12-5 S in PL 378 in the North Sea, where Wintershall Norge AS is also operator.
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