Chevron updates Anchor discovery in deepwater gulf

Chevron Corp. has confirmed a combined hydrocarbon column of at least 1,800 ft in the Lower Tertiary Wilcox reservoirs at its Anchor prospect on Green Canyon Block 807, 140 miles offshore Louisiana in the Gulf of Mexico.

The company’s original Anchor-2 discovery well was drilled in late 2014 to a depth of 33,750 ft in 5,180 ft of water and encountered 690 ft of net oil pay (OGJ Online, Jan. 6, 2015). The company said it began appraisal drilling in June. Venari Resources LLC reported that a sidetrack from Anchor-2 was drilled down dip and found an additional 694 ft of net oil pay.

“The positive results of our appraisal work at Anchor indicate a significant discovery of potentially hub class scale,” said Jay Johnson, executive vice-president, upstream. The company is pursuing additional appraisal work to further evaluate the results and assess development alternatives for the field.

Chevron is Anchor’s operator with a 55% working interest, Cobalt International Energy Inc. has 20%, and Samson Offshore Anchor LLC and Venari Resources LLC each have 12.5%.

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