Recovery of oil from tar sands

Details Recovery of oil from tar sands Recovery of oil from tar sands

C - Chemistry, Metallurgy

10

G

196/30, 166/35

C10G 1/00 (2006.01) C10G 1/02 (2006.01)

Patent

CA 1196594

Abstract of the Disclosure Oil is recovered from tar sands by causing a gas, heated to a temperature within the range from 300°C to 600°C, to flow downward through an enclosed mass of tar sands to cause an oil fraction to separate from the mass by gravi- tational flow and the separated oil fraction is recovered. The gas may be an inert gas or an active gas. The process may be carried out on masses of tar sands separated from the deposit or in-situ.

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