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Linc Energy starts Enhanced Oil Recovery with Injection of CO2 in Wyoming

Linc Energy is taking aggressive steps to introduce Enhanced Oil Recovery (EOR) in its Glenrock, Wyoming oil fields with the commencement of CO2 injection into its first well.

The CO2 flooding of Linc Energy’s Glenrock assets in the Powder River Basin, Wyoming will unlock access to over 80 million barrels of oil.

“The Glenrock assets have produced over 140 million barrels of oil under traditional drilling. Now it is time to introduce EOR with CO2 injection and secure the remaining barrels in reserves that still exist in these fields,” Linc Energy Chief Executive Officer, Peter Bond, said.

Well preparation work has started including the installation of a new liner to ensure injection integrity. CO2 will be delivered from the bullet tanks through a manifold system, heated to approximately 16 degrees Celcius then pumped at high pressure down-hole at an anticipated one to three barrels per minute rate.

Once injection is completed the well is allowed to “soak” for 19 to 21 days and the CO2 is allowed to disperse in the reservoir. The well is then flowed back to tanks on location and the oil, water and CO2 is separated.

In February 2011, Linc Energy acquired the Big Muddy, South Glenrock, and South Cole Creek oil fields near Glenrock, Wyoming from Rancher Energy Corporation. Current oil production from the fields’ four operating units totals approximately 215 barrels per day.

An independent analysis of the South Glenrock and Big Muddy fields determined that carbon dioxide (CO2) flooding could potentially produce in excess of 10,000 barrels per day from each of these fields.

“South Cole Creek, the smallest of the three producing fields, has a cumulative production of over 17 million barrels but has yet to be evaluated for EOR. However the EOR process typically prolongs the life of each producing zone by over 30 years,” Bond said.

Planning, engineering and permitting are underway for introduction of CO2 for EOR at the South Glenrock B Oil Field, and will begin in the Dakota formation before the end of 2011.

This formation will be the first of nine separate potential stratigraphic zones identified for EOR using CO2 injection.

The CO2 will initially be delivered to the field by trucks until a pipeline is built to provide long term dependable supplies and maintain lower operating costs.

[Image courtesy Linc Energy.]

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