发明名称 |
Controlled release breaker composition for oil field applications |
摘要 |
The present invention relates to encapsulated breakers and the use of encapsulated breakers for breaking viscosified treatment fluids. One embodiment of the present invention provides a method of providing a viscosified treatment fluid having a first viscosity having a gelling agent, a crosslinking agent, a proppant, an aqueous-base fluid, and an encapsulated breaker composition having an encapsulant that has a poly(meth)acrylate blend; introducing the viscosified treatment fluid in the subterranean formation; creating or enhancing a fracture in a subterranean formation; and allowing the encapsulated breaker composition to release the breaker so as to reduce the viscosity of the viscosified treatment fluid to a second viscosity. |
申请公布号 |
US8695704(B2) |
申请公布日期 |
2014.04.15 |
申请号 |
US201113292304 |
申请日期 |
2011.11.09 |
申请人 |
MUTHUSAMY RAMESH;PATIL PRAJAKTA R.;PANDYA NISHA A.;HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
MUTHUSAMY RAMESH;PATIL PRAJAKTA R.;PANDYA NISHA A. |
分类号 |
E21B43/267;C09K8/62;C09K8/68;C09K8/80;C09K8/92;E21B43/22 |
主分类号 |
E21B43/267 |
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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