发明名称 |
Polymeric microspheres as degradable fluid loss additives in oilfield applications |
摘要 |
A method of plugging a fracture in a subterranean formation which includes placing into the fracture a composition comprising microspheres or microbeads, wherein the microspheres are created by surface crosslinking of droplets in a water-in-water emulsion. Such microspheres may form a filter cake in the formation. The microspheres may include a chemical agent to be released when the microspheres dissolve.
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申请公布号 |
US7748452(B2) |
申请公布日期 |
2010.07.06 |
申请号 |
US20080033630 |
申请日期 |
2008.02.19 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
SULLIVAN PHILIP F;TUSTIN GARY JOHN;DROCHON BRUNO;DESSINGES MARIE NOELLE;KUBALA GREGORY;VATRY CHRISTELLE |
分类号 |
E21B33/13;E21B43/267 |
主分类号 |
E21B33/13 |
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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