Method of treating subterranean formations with porous...

C - Chemistry – Metallurgy – 09 – K

Patent

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C09K 8/80 (2006.01) E21B 43/267 (2006.01)

Patent

CA 2497276

Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.

L'invention concerne des procédés et des compositions utilisés dans les traitements de formations souterraines, tels que des traitements par fracturation hydraulique et anti-sable contenant des matériaux poreux. Ces matériaux poreux peuvent être des particules de matériaux poreux sélectivement configurés, fabriquées et/ou traitées à l'aide de matériaux de vitrification, de matériaux de revêtement et/ou de matériaux d'imprégnation sélectionnés afin d'obtenir la force et/ou la densité apparente désirées d'adaptation à des conditions de fond spécifiques pour le traitement des puits, par exemple les traitements par fracturation hydraulique et les traitements anti-sable. Ces matériaux poreux peuvent également être utilisés dans des combinaisons sélectionnées afin d'optimiser l'efficacité de la fracturation ou de l'élimination du sable, et/ou peuvent être utilisés commes matériaux relativement légers dans des systèmes de traitement de puits à base de dioxyde de carbone liquide.

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