Mr. Laut said that the amount of pressure needed to force bitumen through the protective rock layer “is significantly higher” than that used by the company. Instead, he argued that the oil was seeping up through inadequately sealed, abandoned oil wells in the area.
“You cannot have these failures without a well bore failure,” he told the analysts.
EDMONTON - In an unusual move, oilsands company Canadian Natural Resources Ltd. has been ordered to partially drain a small lake on the Cold Lake Air Weapons Range to find a way to contain bitumen seeping up into the water.
The provincial environmental protection order, the first to require draining of, or “dewatering,” a body of water, calls for CNRL to partly empty the lake, locate the leaking fissure in the lake bottom, construct containment measures and restore the lake next March...
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