Centrica: Gas shows in Norwegian Sea wildcat

Centrica Resources Norge AS, operator of production licence 528 B, has informed it is about to complete drilling of wildcat well 6707/10-3 S, in the Norwegian Sea. 

The well was drilled about 20 kilometers northeast of the Aasta Hansteen field in the Norwegian Sea.

The primary and secondary exploration targets for the well were proving petroleum in Upper Cretaceous reservoir rocks, the Kvitnos and Lysing formations, respectively.

According to the Norwegian Petroleum Directorate (NPD), the well 6707/10-3 S encountered a total gas column of about 12 metres in the Kvitnos formation with good reservoir properties. The entire reservoir zone, including the water zone, has a gross thickness of about 200 metres.

Reservoir rocks were encountered in the secondary exploration target with a total of 25 metres thickness in the Lysing formation, which was tight and aquiferous.

Preliminary calculations of the size of the discovery are between two and eight billion standard cubic metres (Sm3) of recoverable gas. NPD says that the licensees will assess well results with regard to profitability.

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

This is the first exploration well in production licence 528 B. The licence was awarded in the 21st licensing round, as an addition to production licence 528.

Well 6707/10-3 S was drilled to a vertical depth of 4264 metres below the sea surface, and was terminated in the Lange formation in the Lower Cretaceous. Water depth is 1421 metres.

The well was drilled by the West Navigator drillship and it will now be permanently plugged and abandoned.

 

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