Recovery of heavy oil

Details Recovery of heavy oil Recovery of heavy oil

C - Chemistry, Metallurgy

10

G

196/16

C10G 1/04 (2006.01)

Patent

CA 1285516

ABSTRACT OF THE DISCLOSURE RECOVERY OF HEAVY OIL Heavy crude oil is recovered from tar sand by treating the tar sand with a low concentration emulsion of a solvent in water containing 0.5 to 15% by volume of the solvent. Suitable solvents include hydrocarbons and halogenated hydrocarbons. Solvent-in-water emulsions are efficient in extracting bitumen with the major advantage of greatly reduced solvent: tar sand ratios.

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