ferrelhadley
There is no love between us anymore.
A steady flow of oil leaking from the ground in Canada is causing everyone to “freak out”, according to a local scientist.
The spill is a result of a major oil sands operation taking place at Cold Lake, Alberta, using an “in situ” method of extraction.
The spill has taken place across four well sites, with the latest covering up to 40 hectares, according to the Alberta Energy Regulator. No one knows how to stop the leaks, which are ongoing.
In situ extraction, the method used to extract the oil, is often used in Canada, since much of its resources cannot be extracted through traditional open-pit mining techniques.
With this method, oil is forced out of the ground by injecting thousands of gallons of high pressure steam into underground oil reservoirs. The hard bitumen heats and liquefies, and can then be pumped through the cracks in the ground that are opened up by the process.
Gillian McEachern from Environmental Defence Canada told RTCC, “Typically tar sands were mined in the big open pit mines that you see the ugly pictures of, and that’s for the more shallow deposits of the tar sands.
“To reach the deeper deposits you need to use this in situ drilling method, and that’s what these wells are. They are increasing the amount of tar sands being produced and over time they will come to be quite significant.
http://www.rtcc.org/2013/07/26/alberta-faces-unstoppable-tar-sands-oil-leak/?