Gelled emulsions and methods of using same

Details Gelled emulsions and methods of using same Gelled emulsions and methods of using same

C - Chemistry, Metallurgy

09

K

C09K 8/70 (2006.01) B01F 17/00 (2006.01) C09K 8/68 (2006.01) C09K 8/80 (2006.01) E21B 43/25 (2006.01)

Patent

CA 2623469

Gelled emulsions contain (i.) an external phase of an aqueous water-soluble solvent solution, polymeric viscosifying agent and, optionally, an oxidative and/or acidic breaker; and (ii.) an internal phase of a dispersed organic fluid. The aqueous water--soluble solvent solution constitutes between from about 15 to about 50 volume percent of the gelled emulsion and the dispersed organic fluid is presented in the gelled emulsion in amounts ranging from about 50 to about 85 volume percent. The gelled emulsions are useful in a variety of applications including, but not limited to, oil field, pipeline and processing facility applications.

Émulsions gélifiées contenant (i) une phase externe formée d'une solution aqueuse de solvant hydrosoluble, d'un agent viscosifiant et, de manière facultative, d'un agent de fractionnement oxydatif et/ou acide; (ii) une phase interne composée d'un fluide organique dispersé. La solution aqueuse de solvant hydrosoluble constitue environ 15 à environ 50 pour cent en volume de l'émulsion gélifiée, et le fluide organique dispersé est présent dans l'émulsion gélifiée en une quantité correspondant à environ 50 à environ 85 pour cent en volume. Les émulsions gélifiées ont diverses applications, notamment, sans en exclure d'autres, des applications dans les champs pétrolifères, les pipelines et les installations de transformation.

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