Anadarko's GoM Shenandoah appraisal well encounters more than 1,000 net ft of oil pay

3/19/2013

Anadarko's GoM Shenandoah appraisal well encounters more than 1,000 net ft of oil pay

HOUSTON -- Anadarko Petroleum has announced that its Shenandoah-2 well in the deepwater Gulf of Mexico encountered more than 1,000 net ft of oil pay in multiple high-quality Lower Tertiary-aged reservoirs.

"The successful Shenandoah-2 well marks one of Anadarko's largest oil discoveries in the Gulf of Mexico, with more than 1,000 net ft of oil pay and reservoir rock and fluid properties of much higher quality than previously encountered by industry in Lower Tertiary discoveries," said Bob Daniels, Anadarko Sr. Vice President Deepwater and International Exploration. "With ownership in the successful Shenandoah wells, the adjacent Yucatan prospect, and the very encouraging results from the nearby Coronado well, Anadarko is strategically positioned in the Shenandoah Basin, which has the potential to become one of the most prolific new areas in the deepwater Gulf of Mexico."

The Shenandoah-2 well, located in Walker Ridge block 51, was drilled to a total depth of 31,405 ft in approximately 5,800 ft of water, more than 1 mi southwest and approximately 1,700 ft structurally down-dip from the Shenandoah-1 discovery. Similar to the initial Shenandoah discovery well, log and pressure data from the Shenandoah-2 well indicate excellent-quality reservoir and fluid properties. The well was drilled to test the down-dip extent of the accumulation, and the targeted sands were full to base with no oil-water contact.

"We are incorporating the information obtained from Shenandoah-2 into our planning and anticipate further appraisal drilling to advance this potentially giant project," Daniels added.

Anadarko is the operator of the Shenandoah-2 well and the previously announced Shenandoah-1 discovery well, located in Walker Ridge block 52, with a 30% working interest. Other co-owners in Shenandoah are ConocoPhillips (30%), Cobalt International Energy (20%), Venari Resources and Marathon Oil with 10% each.

Additionally, in the Shenandoah Basin, Anadarko has a 15-percent working interest in both the Coronado well, located in Walker Ridge block 98, and the Yucatan prospect, located in Walker Ridge block 95.

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