12 June 2015
Alta oil and gas discovery confirmed
Successful delineation of Alta discovery in northern Norway - important project for DEA makes progress
Drilling of delineation well 7220/11-2 and side track 7220/11-2 A on the Alta discovery in production license (PL) 609 in the Barents Sea has been successfully completed. Drilling location is approximately 6.5 km south west of the Alta discovery well, and some 160 km from the Norwegian coastline.
“The discovery made in the first Alta well last year is promising,” says Hugo Sandal, Managing Director of DEA Norge. “With the drilling of this delineation well and side track, as well as the upcoming drilling of a fourth well, we will have a much clearer view of the reservoir potential,” Sandal adds.
The purpose of well 7220/11-2 was to confirm the reservoir model and to prove the presence of hydrocarbon columns and fluid contacts similar to those established in the Alta discovery well. The preliminary evaluation of the recoverable oil and gas resource range from the Alta discovery well is estimated at 125 to 400 million barrels of oil equivalent (MMboe).
The delineation well encountered a 50 meter gas column in reservoir rocks of varying quality. The oil zone was found in rocks without reservoir qualities, and this is why a side track was drilled, about 330 meters to the west. The side track well 7720/11-2 A encountered movable oil in rocks of moderate reservoir quality. Pressure data and fluid properties indicate communication between the delineation well, the side track and the discovery well.
Extensive data acquisition and sampling was carried out in both wells, including conventional coring and fluid sampling. The results from these two wells are important with regards to the further work of mapping the top reservoir level and reservoir quality along the western flank of the Alta discovery. The resource estimate will be reevaluated after the next delineation well that will be drilled shortly.
Well 7220/11-2 and side track 7220/11-2 A are the second and third wells drilled in PL609. They were drilled to a total depth of 2,020 and 2,041 meters below sea level, respectively, in a water depth of 379 meters, using the drilling rig Island Innovator. They will now be permanently plugged and abandoned.
DEA Norge is partner in PL609, with a share of 30%. Operator is Lundin Norway with 40% interest and Idemitsu Petroleum Norge holds the remaining 30% share.
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DEA Norge AS has a license portfolio of 31 licenses on the Norwegian Continental Shelf. On five of these, the company is operator. DEA Norge has 92 employees at its offices in Oslo, and has been present in Norway for over 40 years.
DEA Deutsche Erdoel AG is an international operator in the field of exploration and production of natural gas and crude oil based in Hamburg. Its focus is on safe, sustainable and environmental conscious exploitation of oil and gas. DEA has 116 years of experience working along the whole upstream value-chain as operator or project partner.
With a staff force of 1,440 employees DEA has stakes in production facilities and concessions in Germany, the UK, Norway, Denmark, Egypt and Algeria and currently holds exploration concessions in Ireland, Libya, Poland, Suriname, Trinidad & Tobago and Turkmenistan. Moreover, in Germany, DEA also operates large subsurface storage facilities for natural gas.