Oilexco makes discovery at Moth

Oilexco has made dual zone oil and gas-condensate discovery at Moth in the Block 23/21 in the UK Central North Sea.

The 23/21-6z Moth discovery well was drilled to a total depth of 14,616 feet (4,454 m) by Diamond Offshore semi submersible Ocean Guardian. Hydrocarbon-bearing reservoir sands with a thickness of 605 feet (184 m) were intersected in the Middle Jurassic Pentland and a further 219 feet (66 m) were intersected in the Upper Jurassic Fulmar. The Middle Jurassic Pentland sands at depth of 13,283 feet (4,048 m) were drill-stem tested through perforations from 13,276 feet to 13,730 feet (4,043 m to 4,184 m) in 439 feet (133 m) of oil and gas bearing reservoir sands. Although they say initial indications are encouraging, the company has decided not to continue with the testing process of the Pentland sands at this time. Further testing will likely occur during the course of additional appraisal drilling in the future. The partners will put together a forward program for the development of this discovery. Future appraisal wells will likely utilize higher capacity testing equipment in order to determine the maximum achievable flow rates, they say. "Oilexco remains the most active driller in the UK North Sea and we continue to achieve significant results from our exploration program, with Moth being the second major discovery to be made by the company in the last year," said Arthur Millholland, president and CEO of Oilexco. The company's partners are BG Group, Hess, and BP.
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