Methods and compositions for treating subterranean...

Details Methods and compositions for treating subterranean... Methods and compositions for treating subterranean...

C - Chemistry, Metallurgy

09

K

C09K 8/70 (2006.01) C09K 8/64 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2372857

Improved methods and compositions for treating subterranean formations penetrated by well bores are provided. A method of the invention for fracturing a subterranean formation comprises the steps of preparing a gelled hydrocarbon fracturing fluid comprised of a hydrocarbon liquid, a ferric iron or aluminum polyvalent metal salt of a phosphonic acid ester, a proppant material, water and a delayed gel breaker, and then contacting the subterranean formation with the gelled liquid hydrocarbon fracturing fluid under conditions effective to create at least one fracture in the subterranean formation.

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