Tenneco Announces A Significant Oil Discovery Off Norway

Tenneco Oil Exploration and Production recently announced a significant oil discovery offshore Norway on Haltenbank Block 6507/7, the second major hydrocarbon discovery this year on the block, in which the company is a partner.

The 6507/7-3 well flowed at a combined daily rate of 15,491 barrels of oil and 8.94 million cubic feet of natural gas from three Middle Jurassic Age intervals between 7,769-8,957 feet. Total depth of the well is 9,350 feet.

The wildcat, approximately 1.5 miles south of the 6507/7-2 discovery announced previously, disclosed a different oil accumulation from the earlier well. The #2 well flowed 14,343 barrels of oil/ condensate and 74.4 million cubic feet of natural gas a day from Middle and Lower Jurassic Age formations.

The #3 well is in the Norwegian Sea, approximately 150 miles northwest of Trondheim, Norway. Water depth in this area is approximately 1,135 feet.

The block, acquired in Norway's 8th License Round, is operated by Conoco Norway Inc. with 30 percent working interest. Partners, in addition to Tenneco's 10 percent working interest, are Arco Norway Inc., 10 percent, and Statoil, 50 percent.

Additional drilling will be required to determine the extent of the field, which has been named Heidrun.

Maritime Reporter Magazine, page 4,  Oct 15, 1985

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