E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/26 (2006.01)
Patent
CA 2603960
A method of fracturing a subterranean zone penetrated by a well bore by preparing a foamed fracturing fluid containing a self-degrading foaming composition comprised of a mixture of anionic surfactant and nonionic surfactant. The fracturing fluid containing a self-degrading foaming composition forms a substantially less stable foam when the foamed fracturing fluid is recovered during reclaim.
La présente invention a trait à un procédé de fractionnement d'une zone souterraine pénétrée par un puits de forage par la préparation d'un liquide de fracturation expansé contenant une composition moussante à décomposition autonome comportant un mélange de tensioactif anionique et de tensioactif non ionique. Le liquide de fracturation contenant une composition moussante à décomposition autonome forme une mousse sensiblement moins stable lorsque le liquide de fracturation est récupéré lors de la régénération.
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