Improved methods of generating gas in and foaming aqueous well fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining with an alkaline aqueous well fluid one or more gas generating chemicals and a mixture of foaming and foaming stabilizing
Improved methods of generating gas in and foaming aqueous well fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining with an alkaline aqueous well fluid one or more gas generating chemicals and a mixture of foaming and foaming stabilizing surfactants so that the gas generating chemical or chemicals react with the alkaline aqueous well fluid and gas and foam are formed in the well fluid while it is being pumped, and then pumping the well fluid into the subterranean zone.
대표청구항▼
Improved methods of generating gas in and foaming aqueous well fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining with an alkaline aqueous well fluid one or more gas generating chemicals and a mixture of foaming and foaming stabilizing
Improved methods of generating gas in and foaming aqueous well fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining with an alkaline aqueous well fluid one or more gas generating chemicals and a mixture of foaming and foaming stabilizing surfactants so that the gas generating chemical or chemicals react with the alkaline aqueous well fluid and gas and foam are formed in the well fluid while it is being pumped, and then pumping the well fluid into the subterranean zone. 561100, Jenks et al.; US-2777679, 19570100, Ljungstrom; US-2780449, 19570200, Fisher et al.; US-2780450, 19570200, Ljungstrom; US-2786660, 19570300, Alleman; US-2789805, 19570400, Ljungstrom; US-2793696, 19570500, Morse; US-2804149, 19570800, Kile; US-2841375, 19580700, Salomonsson; US-2890754, 19590600, Hoffstrom et al.; US-2890755, 19590600, Eurenius et al.; US-2902270, 19590900, Salomonsson et al.; US-2906337, 19590900, Henning; US-2906340, 19590900, Herzog; US-2914309, 19591100, Salomonsson; US-2923535, 19600200, Ljungstrom; US-2932352, 19600400, Stegemeier; US-2939689, 19600600, Ljungstrom; 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