TULSA, Okla. -- Although the South Central Oklahoma Oil Province (SCOOP) – an extension of the liquids-rich Cana Woodford shale play – remains in its infancy, the area is yielding impressive results from early wells.
The Woodford shale play within the Big 4 formation has emerged as a major horizontal play in the SCOOP during the past four years. It’s a trend that shows no signs of letting up, according to Joe Schimelpfening, senior vice president, upstream business, Eagle Rock Energy Partners LP.
Speaking at Hart Energy’s DUG Midcontinent conference in Tulsa on April 23, Schimelpfening said the prolific oil targets in South Central Oklahoma will continue to see “strong industry development” in the horizontal Woodford play as well as the Bromides, Big 4, Springer and Deese horizons.
“The area is very special in ways not uncommon to other shale plays. It’s in a great neighborhood,” he told attendees.
The SCOOP stretches south in a 100-mile fairway from the Cana Woodford to the valley of the Red River, which separates Texas and Oklahoma. The fairway includes three of the top oil-producing counties in Oklahoma, which have combined to yield 3.2 billion barrels of oil from 60 reservoirs during the past 100 years, Schimelpfening said.
Bounded on the north by the Nemaha Uplift; on the south by the Wichita Uplift; and on the east by the Arbuckle Uplift, the siliceous Woodford shale known as SCOOP is as much as 15,000 feet deep and up to 400 feet thick.
What’s more, the SCOOP is surrounded by four prolific, giant oil fields – Sho-Vel-Tum, 1,700 million barrels of oil equivalent (MMBoe); Golden Trend, 1,020 MMBoe; Oklahoma City, 950 MMBoe; and Cement, 420 MMBoe.
“Horizontal Woodford drilling – immediately south of the Golden Trend field in particular – is delivering excellent early production results,” he said. “Additional horizontal targets are emerging in this oil-rich province targeting tight carbonate and sandstone reservoirs.”
The western half of Oklahoma lies on top of the Anadarko Basin, a huge sedimentary formation that has already yielded most of Oklahoma’s conventional oil and natural gas.
In 2012, attention turned to the possibility of unlocking the basin’s unconventional resources using the same horizontal drilling and hydraulic-fracturing techniques that have prized millions of barrels of oil and condensates from the Bakken in North Dakota and the Eagle Ford in South Texas. As a result, Woodford horizontal activity shifted to Grady and Garvin