E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/39
E21B 43/24 (2006.01) C09K 8/588 (2006.01) C09K 8/592 (2006.01)
Patent
CA 1193186
ABSTRACT OF THE DISCLOSURE Heavy crude oil is recovered from a subterranean formation by a process comprising a) heating said formation, and b) subsequently flooding the formation with a cold aqueous solution containing a polymer additive which increases its viscosity.
419685
Borden Ladner Gervais Llp
Veba Oel Entwicklungs-Gesellschaft Mbh
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