Vår Energi discovered oil and gas in the Goliat Nord prospect in Barents Sea production license (PL) 229. The operator and license partners will consider a tieback to existing Goliat field infrastructure, the Norwegian Offshore Directorate reported Dec. 4.
The discovery lies 3 km from the Goliat cylindrical floating production and storage unit (Sevan 1000 FPSO) and 90 km from Hammerfest.
Preliminary estimates indicate that the discovery contains 0.4-0.8 million std cu m of recoverable oil equivalent (2.5-5 million bbl).
Drilling details
Wildcat well 7122/7-8 was drilled in 409 m of water by the COSLProspector semisubmersible rig to a vertical depth of 2,197 m subsea. It was terminated in the Kobbe formation in the Middle Triassic.
The objective was to prove petroleum in the Goliat Nord prospect in the Lower Jurassic-Upper Triassic and in Middle Triassic reservoir rocks in the Realgrunnen Subgroup and Kobbe formation, respectively.
The well encountered an 8-m gas-oil column in the Tubåen formation in the Realgrunnen Subgroup in reservoir rocks totaling 6.5 m, with good reservoir quality. The gas-oil contact was encountered 1,255 m subsea. The oil-water contact was not encountered.
The well also encountered a 6-m gas-oil column in the Fruholmen formation in the Realgrunnen Subgroup in reservoir rocks with good reservoir quality. The gas-oil contact was encountered 1,285 m subsea and the oil-water contact was encountered 1,290 m subsea.
In the Kobbe Formation, the well encountered a 17-m oil column in reservoir rocks totaling 12 m with good reservoir quality. The oil-water contact was encountered 2,048 m subsea.
The well was not formation-tested, but extensive data acquisition and sampling were carried out. It has been permanently plugged.
Vår Energi is operator at PL 229 (65%) with partner Equinor Energy AS (35%).
