Sweden-based Lundin Petroleum has completed drilling the 16/5-2S appraisal well on the Avaldsnes discovery, offshore Norway. The well is located 8.5km south of Avaldsnes discovery well 16/2-6, and 4km south of appraisal well 16/2-7.
Lundin said the main focus of the well was to delineate the southern flank of the Avaldsnes discovery in Lundin-operated PL-501. Semi-submersible rig Bredford Dolphin was used to drill up to 2,042m in a water depth of 111m.
Well 16/5-2S encountered a 15m Jurassic sequence of which the upper 8m has excellent reservoir quality. The top reservoir was found to be deeper than expected, and below the oil water contact. Good hydrocarbon shows, however, were observed below the oil water contact, but are evaluated as not producible hydrocarbons.
A comprehensive data acquisition programme was also performed including coring, wire line logging and fluid sampling.
Well 16/5-2S is the first of an extensive Avaldsnes appraisal programme comprising four wells planned by Lundin in 2012. The impact of this well on the southern extent of the Avaldsnes discovery is being evaluated and will likely reduce current resource estimates for this area.
After the well is permanently abandoned, the rig will move to the next appraisal well in PL501, well 16/2-11. The results of the well will be incorporated into the current reservoir model and a revised resource estimate will be released after the completion of the 16/2-11 appraisal well.
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The PL501 licence is operated by Lundin Petroleum, which holds a 40% interest, along with partners Statoil and Maersk Oil Norway, which hold 40% and 20%, respectively.