Additive for inclusion in a heavy oil reservoir undergoing...

Details Additive for inclusion in a heavy oil reservoir undergoing... Additive for inclusion in a heavy oil reservoir undergoing...

E - Fixed Constructions

21

B

166/32

E21B 43/20 (2006.01) C09K 8/592 (2006.01) C09K 8/60 (2006.01) E21B 43/24 (2006.01)

Patent

CA 1189444

"ADDITIVE FOR INCLUSION IN A HEAVY OIL RESERVOIR UNDERGOING STEAM INJECTION" ABSTRACT OF THE DISCLOSURE The viscosity of heavy oil may be incrementally reduced over what can be achieved by steam alone, by introducing an aqueous metal salt solution into a reservoir undergoing steam injection. The metal ion is selected from the group consisting of Ti, v, Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo and Al. In a preferred feature CO is also introduced as a second additive, with a further oil viscosity reduction being observed with certain of the metal ions.

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