发明名称 |
Ortho ester breakers for viscoelastic surfactant gels and associated methods |
摘要 |
Many methods are provided including a method comprising: providing a surfactant gel having a first viscosity that comprises an aqueous base fluid and a surfactant; providing an ortho ester breaker; contacting the surfactant gel with the ortho ester breaker; allowing the ortho ester breaker to hydrolyze to produce an acid and an alcohol; and allowing the acid and/or the alcohol to interact with the surfactant gel so as to reduce the first viscosity of the surfactant gel to a second viscosity. Other methods are provided that include a method comprising: providing a surfactant gel that comprises an aqueous base fluid and a surfactant having a first viscosity; placing the surfactant gel into a subterranean formation; providing an ortho ester breaker; contacting the breaker with the surfactant gel; allowing the breaker to hydrolyze to produce an acid and an alcohol; and allowing the acid and/or the alcohol to interact with the surfactant gel so as to reduce the first viscosity of the surfactant gel to a second viscosity.
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申请公布号 |
US2008103069(A1) |
申请公布日期 |
2008.05.01 |
申请号 |
US20060588886 |
申请日期 |
2006.10.27 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WELTON THOMAS D. |
分类号 |
C09K8/60 |
主分类号 |
C09K8/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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