Water shut off method and apparatus

Details Water shut off method and apparatus Water shut off method and apparatus

E - Fixed Constructions

21

B

E21B 34/06 (2006.01) E21B 43/38 (2006.01)

Patent

CA 2530969

A technique is provided to control flow in subterranean applications, such as hydrocarbon fluid production applications. The technique utilizes an material formed, at least in part, of material that swell in the presence of a specific substance or substances. The material is deployed as a membrane outside a base pipe to desired subterranean locations. Once located, the material allows the flow of hydrocarbon fluids but swells upon contact with the specific substance or substances to limit inflow of undesirable fluids.

Technique de régulation d'écoulement pour applications souterraines, notamment pour des applications de production de fluides d'hydrocarbures. La technique nécessite l'emploi d'un matériau composé, au moins en partie, d'une matière qui gonfle en présence d'une substance ou de substances précises. Le matériau est déployé pour former une membrane à l'extérieur d'un tuyau de base aux endroits souterrains choisis. Une fois mis en place, le matériau laisse passer les fluides d'hydrocarbures, mais gonfle au contact de la ou des substances particulières pour limiter le passage des fluides indésirables.

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