Equinor Drills Duster Near Wisting Discovery in Barents Sea


June 3, 2021
Deepsea Nordkapp - Credit: Dag Erik Hareide/MarineTraffic.com

Deepsea Nordkapp - Credit: Dag Erik Hareide/MarineTraffic.com

Norwegian oil and gas firm Equinor has drilled a dry exploration well near the Wisting discovery in the Barents Sea, offshore Norway.

According to the Norwegian Petroleum Directorate, the exploration target of the well was to prove petroleum in Middle and Upper Triassic reservoir rocks (the Snadd Formation), and in upper Carboniferous and Lower Permian reservoir rocks (the Ørn Formation).

The well 7322/6-1 S, drilled about 320 kilometers north of Hammerfest and 45 kilometers northwest of the 7324/8-1 (Wisting) oil discovery in the Barents Sea, encountered two sandstone intervals in the Snadd Formation, measuring 12 and 23 meters, with poor to moderate reservoir quality.

In the Ørn Formation, the well-encountered carbonate rocks (dolomites) over an interval of nearly 250 meters, with poor to moderate reservoir quality.

In the Realgrunnen Subgroup (Late Triassic to Middle Jurassic Age), the well encountered about 45 meters of sandstone, presumably with moderate to good reservoir quality.

The uppermost sandstone interval in the Snadd Formation contains traces of oil. The well is classified as dry, the NPD said this week.

This is the first exploration well in production licence 722.  Equinor is the operator with an ownership interest of 45 percent. The other licensees are AkerBP  (20 percent), Lundin Energy Norway  (20 percent), and Sval Energi  (15 percent).

Equinor drilled the well 7322/6-1 S using the Deepsea Nordkapp semi-submersible drilling rig to respective vertical and measured depths of 3550 and 3817 meters below sea level. 

The wildcat was terminated in the lower part of the Ørn Formation in the Upper Carboniferous. The water depth at the site is 439 meters. The well has been permanently plugged and abandoned.

Odfjell Drilling's Deepsea Nordkapp drilling rig will now drill wildcat well 7234/6-1 in production licence 858 in the Barents Sea, where Aker BP ASA is the operator.

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