E.ON Ruhrgas has drilled a duster in wildcat well 31/8-1 in the Norwegian sector of the North Sea. The well reached a vertical depth of 8,524 feet (2,598 meters) and terminated in the Brent group, in the Middle Jurassic age.
The primary target of the well was to determine petroleum in Upper Jurassic reservoir rocks in the Sognefjord formation with the secondary target to prove petroleum in Middle to Lower Jurassic reservoir rocks in the Fensfjord, Krossfjord and Johansen formations and the Brent group.
E.ON stated reservoir rocks with expected reservoir quality were encountered in the Sognefjord formation, but the well was dry. Petroleum was not proven in the secondary exploration targets either. The operator acquired data and will now permanently plug and abandon the well. The Borgland Dolphin semisub drilled well 31/8-1 in a water depth of 997 feet (304 meters).
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