Preparation of hydrocarbon gels from ferric sources,...

Details Preparation of hydrocarbon gels from ferric sources,... Preparation of hydrocarbon gels from ferric sources,...

C - Chemistry, Metallurgy

09

K

C09K 3/00 (2006.01) C09K 8/64 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2235388

This invention relates to improved hydrocarbon gels which find use in the fracturing of petroleum producing formations. In particular it relates to the use of a define class of gelling agents for hydrocarbons which provide excellent results in such fracturing. The gelling agents comprise combinations of (1) selected orthophosphate esters and (2) a composition comprising a source of ferric ions, an amine, and a polycarboxylic acid or salt thereof.

L'invention porte sur des gels améliorés d'hydrocarbures servant à fracturer des formations géologiques productrices de pétrole. L'invention porte en particulier sur l'utilisation d'une classe précise de gélifiants d'hydrocarbures donnant d'excellents résultats dans ce type d'opérations. Les gélifiants consistent en combinaisons: (1) d'esters orthophosphoriques, et (2) d'une composition comprenant: une source d'ions ferriques, une amine et un acide polycarboxylique ou ses sels.

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