Total E&P Norge AS, operator of production licence 554, offshore Norway, has completed drilling and testing of appraisal well 34/6-3 S on the “Garantiana” discovery and the wildcat sidetrack well 34/6-3 A have been completed.
The appraisal well 34/6-3 S encountered a gross oil column of 120 metres in the Cook formation with good reservoir quality. The Statfjord formation was water bearing. The oil/water contact was not established. Extensive data acquisition and sampling were carried out, including comprehensive formation testing of the Cook formation. The stable production rate measured 940 standard cubic metres (Sm3) of oil per day through a 24/64 inch choke size, with a maximum rate of 1,100 Sm3 of oil per day through a 28/64 inch nozzle opening.
The test showed good flow properties including stable flowing pressure and low drawdown, and consistent pressure build-ups. The well produced oil with a low gas/oil ratio.
The separate sidetrack exploration well 34/6-3 A on the “Akkar” prospect was subsequently drilled. The well encountered a 12 meter net oil column in the Cook formation and was terminated in the Statfjord formation which was water bearing. Sampling and data acquisition was carried out. The sidetrack well was not formation tested. Estimated recoverable resources proved by the well is about 3 mmboe.
Both wells are permanently plugged and abandoned.
Det norske holds 10% working interest in PL554. The operator is Total E&P Norge AS with 40% and the other partners are Spike Exploration with 30% and Svenska Petroleum with 20%.
Water depth is 381 metres. The wells will be permanently plugged and abandoned, the statement further read.
The wells were drilled by the Leiv Eiriksson semi-submersible drilling rig, which will now drill wildcat well 35/9-12 S in production licence 420 in the northeastern North Sea, where RWE Dea is the operator.
Press Release
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