发明名称 |
METHODS FOR EFFECTING CONTROLLED BREAK IN PH DEPENDENT FOAMED FRACTURING FLUID |
摘要 |
The invention provides a fluid for use in a subterranean formation penetrate d by a wellbore, the fluid comprising: (a) water; (b) an orthoester; and (c) a surfactant comprising a tertiary alkyl amine ethoxylate generally represented by the following formula: (see above formula) wherein R is an alkyl group or aryl group, and wherein X and Y are each independently at least one. The invention also provides a method of fracturing a subterranean formation, comprising the step of forming a foamed fracturing fluid comprising water; an orthoeste r; a surfactant comprising a tertiary alkyl amine ethoxylate generally represented by the formula above; and a gas. The method also provides the step of introducing the foamed fracturing fluid into a subterranean formation at a pressure sufficient to create a fracture in the subterranean formation.
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申请公布号 |
CA2555098(C) |
申请公布日期 |
2010.01.12 |
申请号 |
CA20062555098 |
申请日期 |
2006.08.01 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
MCMECHAN, DAVID;TODD, BRADLEY L.;WELTON, THOMAS D. |
分类号 |
C09K8/62;E21B43/267;E21B43/27 |
主分类号 |
C09K8/62 |
代理机构 |
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主权项 |
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地址 |
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