“We are making one of this year’s biggest discoveries in the most mature area of the Norwegian continental shelf (NCS), not far from the Troll field. This demonstrates the opportunities that still exist for value creation and revenue from this industry,” says Nick Ashton, Equinor’s senior vice president for exploration in Norway and the UK.
In the primary exploration target, the well encountered two hydrocarbon-bearing sandstone intervals in the Sognefjord Formation.
The uppermost interval has a combined oil and gas column of about 25 m in sandstone with variable reservoir quality from good to extremely good. The gas/oil contact was encountered, while the oil/water contact was not encountered.
The other interval has an oil column of about 15 m in sandstone with good to very good reservoir quality. The oil/water contact was encountered.
In the secondary exploration target, the well encountered a total oil and gas column of about 35 m in the Ness and Etive Formations, whereof 30 m of sandstone with moderate to very good reservoir quality. The gas/oil and oil/water contacts were encountered.
The licensees will consider tying the discovery into existing infrastructure in the Troll-Fram area. A sidetrack (well 35/11-23 A) is being drilled to delineate the discovery in the Sognefjord formation.
There are also indications of hydrocarbons in a 5 m thick sandstone layer in the Viking Group in the Upper Jurassic directly over the Brent Group, which will be studied more closely.
35/11-23 well was drilling the Echino South prospect and is located 3 km southwest of the Fram field in the northern part of the North Sea.