Eni Norge Finds Oil with Goliat Appraisal Well
Eni Norge AS, as the operator of production license 229, has completed drilling and testing appraisal well 7122/7-4 S in the Goliat South structure in the Barents Sea.
The production license lies approximately 50 kilometers southeast of the Snohvit field and approximately 85 kilometers northwest of Hammerfest. Appraisal well 7122/7-4 S was drilled to a total subsea depth of 2,366 meter and was completed in rocks of early Triassic Age.
The purpose of the well was to prove a deeper oil/water contact in the reservoir in the Realgrunnen sub-group of the late Triassic Age, and to prove a gas/oil contact in the Kobbe formation reservoir of mid-Triassic Age in the Goliat South structure.
The oil/water contact was established in the Realgrunnen sub-group reservoir, and the gas/oil contact was proven in the Kobbe formation reservoir. In addition, a deeper oil column was encountered in sandstone in the Klappmys formation of the early Triassic Age.
The results from the well are now being assessed as part of the resource base for a possible development of the Goliat discovery. The well also indicated that the share of gas has increased, and this will be assessed in terms of choosing a possible development concept. The discovery in the deeper formations is also considered positive, as no petroleum potential has been proven in this part of the Hammerfest basin.
A new type of production test (injection test) was carried out in the Kobbe formation in order to determine the production properties of the reservoir.
Drilling of appraisal well 7122/7-4 S was carried out with Transocean's semisub, Transocean Polar Pioneer at a water depth of 372 meters. The Transocean Polar Pioneer will now drill exploration well 7122/7-5 in the Goliat West structure in production license 229. The purpose of this the well is to test the hydrocarbon potential in reservoirs of the early to late Triassic Ages.
The licensees in production license 229 are Eni Norge as operator with 65%; Statoil with 20% and Det Norske Oljeselskap with the remaining 15%.
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