July 22, 2013

Another tar sands spill

'Nobody understands' how to stop 6 week old spill at Alberta tar sands operation - with over 1,000,000 gallons spilled so far.

Canadian Natural Resources Ltd. has been unable to stop an underground oil blowout that has killed numerous animals and contaminated a lake, forest, and muskeg at its operations in Cold Lake, Alberta. The scientist said Canadian Natural Resources is not disclosing the scope of spills in four separate sites, which have been off bounds to media and the public.

The company's operations use an "in situ" or underground extraction technology called "cyclic steam stimulation," which involves injecting thousands of gallons of superhot, high-pressure steam into deep underground reservoirs. This heats and liquefies the hard bitumen and creates cracks through which the bitumen flows and is then pumped to the surface.
The scientists, who asked not to be named for fear of losing their jobs, said the operation was in chaos.
"Everybody (at the company and in government) is freaking out about this," said the scientist. "We don't understand what happened. Nobody really understands how to stop it from leaking, or if they do they haven't put the measures into place."


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