Lundin Petroleum's latest Luno II appraisal well found oil but with lower than expected reservoir properties, leading the firm to revise down its resource estimate for the field to between 27 and 71MMboe.
Lundin said the target of appraisal well 16/4- 8 S in the Luno II discovery, about 15km south of the Edvard Grieg field in the Norwegian North Sea,was to confirm the reservoir properties and petroleum potential of the Central South segment of Luno II.
The well encountered about 500m of gross sandstone section of Jurassic/Triassic age. A gross oil column of 30m was proven, underlying a thin gas cap. Pressure data indicated a barrier towards the discovery well 16/4-6 S.
A drill stem test was performed in the oil zone, producing at a rate of 450bbl/d day through a 28/64in. choke. Reservoir properties were lower than expected in this part of the structure.
Appraisal well 16/4-8 S is the third well drilled in production license PL359 after it was awarded in 2006. The discovery well was in 2013.
The well was drilled using the semi-submersible drilling rig Bredford Dolphin (pictured), which will next drill exploration well 33/12-10 S targeting the Vollgrav South prospect in PL631 operated by Lundin.
Following to deals involving PL359, Lundin is due to hold 50% interest in PL359, with OMV Norge holding 20%, Statoil Petroleum 15%, and Wintershall Norge 15%.
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