Reducing volatile phosphorous in hydrocarbon based...

Details Reducing volatile phosphorous in hydrocarbon based... Reducing volatile phosphorous in hydrocarbon based...

C - Chemistry, Metallurgy

09

K

C09K 8/64 (2006.01) C09K 8/52 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2745704

A method is provided for reducing the volatile phosphorous content of gelled oil fracturing fluid comprising the steps of: a) providing a hydrocarbon liquid comprising a hydrocarbon and at least one phosphate ester gelling agent, b) providing a particulate delayed breaker to said hydrocarbon liquid to break the phosphate gelling ester, wherein the delayed beaker comprises an at least partially sintered magnesium oxide, c) adding said breaker to said liquid, d) allowing said breaker to destabilize a metal crosslink in said gel, reducing the volatile phosphorous present in the fluid by at least about 25%.

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