E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/22
E21B 36/00 (2006.01) C09K 8/60 (2006.01) E21B 43/17 (2006.01)
Patent
CA 1264657
ABSTRACT OF THE DISCLOSURE An enhanced oil recovery process comprises injec- tion of water into a subterranean formation followed by the injection of a surfactant such as a micellar fluid and a thickening agent such as a polymer solution to drive oil toward a production well. Temperatures and pressures of injection of the water, surfactant, and thickening agent are controlled so as to thermoelastically fracture the formation behind the oil-water bank to increase the injec- tivity rate and propagation rate of the slugs of fluids behind the oil-water bank to control the shape of the flood front and to minimize misdirected fracturing ahead of the flood front.
528082
Gonzalez Jay A.
Pathak Prabodh
Perkins Thomas K.
Salter Stephen J.
Atlantic Richfield Company
Gonzalez Jay A.
Osler Hoskin & Harcourt Llp
Pathak Prabodh
Perkins Thomas K.
LandOfFree
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