鈥楶hantom volcanoes鈥 may hide oil and gas wealth
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An unexplored 7,000-square-kilometer swathe of the British North Sea, previously thought to contain empty chambers left by three extinct volcanoes, may hide oil and gas instead, the University of Aberdeen said yesterday.
For decades it was assumed that the Rattray volcanic province off northwest Scotland contained old magma chambers, ruling out the possibility of oil and gas.
However, the university鈥檚 geologists now say these 鈥減hantom volcanoes鈥 never existed at all. The findings raise the prospect of future discoveries in the area, which has been left untouched over 50 years.
鈥淲hat we found has completely overturned decades of accepted knowledge,鈥 said Aberdeen University鈥檚 Dr Nick Schofield. 鈥淭his gives us back a huge amount of gross rock volume that we never knew existed, in one of the world鈥檚 most prolific regions for oil and gas production.鈥
Schofield said the team of geologists, including two from Heriot-Watt University and the University of Adelaide, had reassessed the area by combining 3D seismic data from Norway鈥檚 Petroleum Geo-Services with well data.
Exploration in the area may be challenging, said the geologists, but technology is improving and there are still big discoveries being made in the North Sea.
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