Bloomberg News

Cenovus Energy Says Carbon Dioxide Not Leaking at Weyburn Site

November 29, 2011

Nov. 29 (Bloomberg) -- Cenovus Energy Inc., Canada’s fifth- largest energy company, said carbon dioxide it’s using to increase oil recovery at an oilfield isn’t contaminating soil or water above the site.

The CO2 Cenovus is injecting about 1.5 kilometers (0.9 miles) to pump more oil and store the compound isn’t leaking, and CO2 in the soil was created naturally, the Calgary-based company said today in a statement. Cenovus hired outside specialists to determine whether CO2 was leaking from the ground, according to the statement.

Landowners Cameron and Jane Kerr released a report in January saying elevated levels of CO2 on their property were coming from CO2 injected at Cenovus’s Weyburn site. The Kerrs have since moved away.

“These results provide complete assurance to landowners and the public that the CO2 we’re injecting about 1.5 kilometers below the ground is staying put and that our Weyburn operation is safe,” Brad Small, a vice president at the company, said in the statement.

Cenovus has been injecting CO2 into the ground at Weyburn since 2000, according to the statement. The gas can thin oil, making it flow more easily to wells. The company is currently storing more than 17 million tons of CO2 underground at the site. Weyburn is one of Canada’s largest enhanced oil recovery operations and the site of the largest geological greenhouse gas storage project in the world.

--Editors: Jessica Resnick-Ault, Will Wade

To contact the reporter on this story: Zachary Tracer in New York at ztracer1@bloomberg.net

To contact the editor responsible for this story: Reed Landberg at landberg@bloomberg.net


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