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13/04/2015 Statoil Petroleum AS, operator of production licence 602, is in the process of concluding the drilling of wildcat well 6706/12-3. The well proved gas.
The well was drilled about 12 kilometres west of the Aasta Hansteen field in the northern part of the Norwegian Sea.
The objective of the well was to prove petroleum in Upper Cretaceous reservoir rocks, with a primary exploration target in the Nise formation and a secondary exploration target in the Kvitnos formation.
The well encountered a total gas column of 38 metres in the Nise formation, of which about 30 metres in sandstone of extremely good reservoir quality. In the Kvitnos formation, the well encountered aquiferous sandstone, of which about 35 metres with good reservoir quality. Preliminary estimates of the size of the discovery are between 2-7 billion standard cubic metres (Sm³) of recoverable gas.
The well was not formation-tested, but extensive data acquisition and sampling have been carried out.
The licensees will evaluate the discovery along with other discoveries, as regards a tie-in to the Aasta Hansteen field.
This is the first exploration well in production licence 602, which was awarded in the 21st licensing round in 2011.
Well 6706/12-3 was drilled to a vertical depth of 3296 metres below the sea surface, and was terminated in the Kvitnos formation in the Upper Cretaceous. Water depth at the site is 1287 metres. The well will now be permanently plugged and abandoned.
Well 6706/12-3 was drilled by the Transocean Spitsbergen drilling facility, which will now permanently plug 34/11-2 S near the Gullfaks field in the North Sea, where Statoil Petroleum AS is the operator.
Contact in the Norwegian Petroleum Directorate
Eldbjørg Vaage Melberg, tel. +47 51 87 61 00