Compositions and processes for treating subterranean formations

Details Compositions and processes for treating subterranean formations Compositions and processes for treating subterranean formations

C - Chemistry, Metallurgy

07

D

C07D 295/185 (2006.01) C07C 237/04 (2006.01) C07C 237/06 (2006.01) C07C 309/14 (2006.01) C07D 233/61 (2006.01) C07D 295/15 (2006.01) C07D 521/00 (2006.01) C08F 20/60 (2006.01) C08F 26/02 (2006.01) C08F 26/06 (2006.01) C09K 8/12 (2006.01) C09K 8/24 (2006.01) C09K 8/588 (2006.01) C09K 8/60 (2006.01) C09K 8/68 (2006.01) C09K 8/88 (2006.01)

Patent

CA 2241362

Compositions and processes for using the compositions for applications in a subterranean formation are provided. The compositions include a composition which comprises a nitrogen-containing olefinic compound; a composition comprises a water-soluble polymer prepared from the nitrogen-containing olefinic compound and optionally an olefinic comonomer; a composition which comprises the water-soluble polymer, a cross-linking agent, and a liquid; and a composition which comprises a clay, the water-soluble polymer, and a liquid. These compositions can be used as or in compositions for enhanced oil recovery, drilling fluids, workover fluids, completion fluids, or combinations of any two or more thereof.

L'invention porte sur des compositions et sur des procédés permettant de les utiliser dans une formation souterraine. Parmi ces compositions figurent une composition comportant un composé oléfinique contenant de l'azote, une composition comprenant un polymère hydrosoluble élaboré à partir du composé oléfinique contenant de l'azote et, éventuellement un comonomère oléfinique, une composition renfermant le polymère hydrosoluble, un agent de réticulation et un liquide, ainsi qu'une composition constituée d'une argile, du polymère hydrosoluble et d'un liquide. On peut utiliser ces compositions en tant que telles ou dans des compositions, pour améliorer la récupération du pétrole, pour les fluides de forage, les fluides de reconditionnement, les fluides de complétion ou pour des combinaisons d'au moins deux d'entre ces derniers quels qu'ils soient.

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