Devon STACKS them up
Wednesday, Jul 12, 2017
Devon Energy announced a record well in Oklahoma’s Sooner Trend Anadarko Basin Canadian and Kingfisher Counties (STACK) play, on July 11.

The company said its Privott 17-H had begun producing at a peak 24-hour rate of 6,000 boepd, of which 50% is oil. Production at the well, in southwest Kingfisher County, was constrained by facilities.

Comparing the well with publically available data, Devon said it had achieved the highest initial production rate in the STACK “by a wide margin”. Total recoverable production from the well is expected to be more than 2 million boe.

The well involved the drilling of a 10,000 foot (3,048 metres) lateral, targeting the Upper Meramec interval. Devon said this was close to the planned Showboat development, which is to be spudded in the third quarter. The Privott 17-H well also benefited from a new completion design, which improved the amount of rock stimulated.

“This operational excellence is delivering best-in-class well productivity in this world-class play,” said Devon’s COO, Tony Vaughn.

The company also started up four other Meramec wells in the oil window during the second quarter, which also benefited from the new completion design. These provided an average 30 day initial production rate of 2,000 boepd. The company did not provide details of how much was gas.

In the company’s first quarter results, it predicted output from its STACK assets would reach 100,000-110,000 boepd in the second quarter.

Providing more details on its Showboat project, Devon said this would involve 25 wells “across four landing zones”, in the third quarter.

“Devon will continue to test development concepts including well density, multi-layer well stacking, intra-layer well staggering and further completion design improvements,” said Devon’s vice president for exploration and production, Wade Hutchings.

“This continual flow of data from our extensive position in the STACK will inform and improve our deep inventory of future multi-zone developments and the overall value of our coveted STACK resource.”

The company has more than 600,000 net acres (2,428 square km) in STACK, which it claims are concentrated in the core. This holding, “provides the company with high-return, sustainable growth opportunities for the foreseeable future”.

STACK has become an increasingly important play for Devon. In 2016, the company reported extensions and discoveries of 126 million boe, of which 97 million boe was in STACK.

The company bought 80,000 net acres (323.7 square km) in the STACK play in January 2016 for US$1.5 billion.

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