发明名称 |
Orthoester compositions and methods for reducing the viscosity of viscosified treatment fluids |
摘要 |
In one embodiment, the present invention provides a method of reducing the viscosity of a viscosified treatment fluid comprising contacting the viscosified treatment fluid with an acid generated from an orthoester composition that comprises an orthoester. In another embodiment, the present invention provides a method of reducing the pH of a viscosified treatment fluid comprising providing an orthoester composition that comprises an orthoester; contacting the viscosified treatment fluid with the orthoester composition; allowing the orthoester to generate a generated acid; and allowing the generated acid to at least partially reduce the pH of the viscosified treatment fluid. Embodiments of fracturing and gravel packing methods also are disclosed. |
申请公布号 |
GB2426249(B) |
申请公布日期 |
2009.04.15 |
申请号 |
GB20060016723 |
申请日期 |
2005.02.07 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
KEITH A FROST;GARY P FUNKHOUSER;BRADLEY L TODD |
分类号 |
C09K8/02;C07C51/00;C08B37/00;C08J3/00;C08K5/06;C08L5/00;C09K8/62;C09K8/68;C09K8/72;E21B43/04;E21B43/26 |
主分类号 |
C09K8/02 |
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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