Tullow Oil plc announced that the Wisting Alternative well (7324/7-1S), offshore Norway in the Barents Sea, has reached Total Depth. The well was not appraising the major discovery at Wisting Central and encountered oil shows in the deeper targeted Kobbe and Snadd formations but the reservoir rock was of poor quality where penetrated.
Wisting Alternative was drilled 3.12 miles (5 kilometers) north west of the Wisting Central light oil discovery, announced Sept. 6, in a deeper independent structure. Following the completion of drilling operations, extensive data acquisition and sampling has been carried out and the well will now be plugged and abandoned. Work will continue on evaluating the Wisting Central discovery and understanding the regional geology.
The well was drilled by the Leiv Eiriksson semi submersible rig and is located approximately 196 miles (315 kilometers) north of Hammerfest. The well was drilled to a total depth of approximately 8,045 feet (2,452 meters) in a water depth of 1,355 feet (413 meters).
The Wisting Alternative well is located in license PL537 in which Tullow has a 20 percent interest. OMV (Norge) are the operator with a 25 percent interest while Idemitsu (20%), Statoil (15%) and Petoro (20%) are also partners.
“Wisting Alternative was a high risk wildcat well which has provided important information about the regional geology in the Barents Sea. The material Wisting Central oil field, discovered in the same license in September this year, will now be prioritized for appraisal in 2014 alongside our significant program of high impact wells that includes the operated Mantra well which is due to spud in November,” Tullow Exploration Director Angus McCoss said.
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