C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/38 (2006.01)
Patent
CA 2486598
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.
L'invention porte sur des procédés améliorés de production de gaz et de mousse dans des liquides aqueux de puits devant être introduits dans une zone souterraine. Un tel procédé consiste à combiner à un liquide de puits alcalin un ou plusieurs produits chimiques gazogènes, et un mélange de tensio-actifs spumogènes et stabilisant la mousse, pour que le ou les produits chimiques gazogènes réagissent avec le liquide alcalin aqueux du puits et produisent de la mousse dans le liquide aqueux pendant son pompage, puis à pomper le liquide de puits dans la zone souterraine.
Cox Ricky A.
Dennis John L. J.
Griffith James E.
Luke Karen
Ravi Krishna M.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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