Wintershall proves more oil west of Vega offshore Norway

Offshore staff

OSLO, NorwayWintershall Norge has made a small light oil find close to the Vega Sør field in the Norwegian North Sea.

The semisubmersible Borgland Dolphin drilled wildcat well 35/11-18 and appraisal well 35/11-18 A in license PL 248, 4 km (2.5 mi) west of the field, in 366 m (1,201 ft) of water.

In the primary Mid-Jurassic exploration target, the wildcat well encountered 275 m (902 ft) of moderate to good reservoir quality in the Brent group, according to the Norwegian Petroleum Directorate, with light oil columns of respectively 11 and 3 m (36 and 10 ft) in the Tarbert and Oseberg formations.

The rig then drilled the appraisal well at a location 450 m (1,476 ft) to the south: this proved gas and oil in two Upper Jurassic (Heather formation) sandstones; 270 m (886 ft) of oil throughout the Brent group; and a 46-m (151-ft) column of light oil in the Lower Jurassic (Cook formation).

Early analysis suggests 1-3 MMcm of recoverable oil.

Borgland Dolphin will next drill appraisal well 25/10-14 in North Sea PL 571 for Suncor Energy Norge.


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