Leach recovery of oil from oil sands and like host materials

Details Leach recovery of oil from oil sands and like host materials Leach recovery of oil from oil sands and like host materials

C - Chemistry, Metallurgy

10

G

C10G 1/04 (2006.01) C09K 8/58 (2006.01) E21B 43/22 (2006.01) E21B 43/34 (2006.01)

Patent

CA 2658996

Oil sands and like host materials are leached with a selected leachant to render pumpable the oil (including heavy oil, bitumen or kerogen and asphaltenes) as leachate. In a preferred embodiment, natural deposits are in situ leached and the leachate recovered and removed for treatment. The leachant is separated and recycled. The leachant is selected to be biodegradable and to not precipate asphaltenes, and to comprise monoterpenes of the formula C10H16. The overall process allows environmentally acceptable resource development and contaminated site remediation.

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