Det norske confirms more oil at West Cable offshore Norway

Offshore staff

OSLO, NorwayDet norske oljeselskap has proven further oil and gas from one of two appraisal wells in the Ivar Aasen area of the central Norwegian North Sea.

The jackup Maersk Interceptor took a break from development drilling at Ivar Aasen to drill wells 16/1-26 S and 16/1-26 A in license 001B, 15 km (9.3 mi) southeast of the 2004 16/1-7 (West Cable) oil discovery well.

Here hydrocarbons were proven in Mid-Jurassic reservoir rocks (the Sleipner formation). Prior to the latest wells Det norske estimated recoverable reserves at 2.1 MMcmoe.

The jackup drilled the two appraisal wells in 113 m (371 ft) of water from a production well that was being drilled from the Ivar Aasen platform.

While 16-1-26 A was dry, 16/1-26 S encountered a gas/oil column of about 25 m (82 ft) in Middle Jurassic reservoir rocks (the Hugin formation), of which 15 m (49 ft) were sandstone of moderate to good reservoir quality.

The oil/water contact, although not encountered, was estimated to be at around 2,700 m (8,858 ft) vertical depth, shallower than the level calculated for the original discovery.

The Norwegian Petroleum Directorate assessed the resources in the range of 0.5-2 MMcmoe recoverable, adding that the resultant data should assist final placement of the development well on the 16/1-7 discovery.

Ivar Aasen is due to come onstream on Dec. 1.


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