发明名称 |
Application of degradable polymers in sand control |
摘要 |
Degradable polylactic or polyhydroxyalkanoate polymers may be used to viscosify aqueous fluids for use in wells. Sand control screen or liner can be coated with a solid degradable polymer during placement in a well. Mechanical changes or flow changes in a well can be caused by solid degradable polymer that changes physical properties after it is placed in a well. Parts of devices or entire devices can be made of solid degradable polymer that converts to a fluid after selected times in an aqueous environment in a well.
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申请公布号 |
US8215385(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20070774819 |
申请日期 |
2007.07.09 |
申请人 |
COOKE, JR. CLAUDE E. |
发明人 |
COOKE, JR. CLAUDE E. |
分类号 |
E21B43/12;A47B43/00;C08G63/06;C08G63/08;C09K8/508;C09K8/512;C09K8/68;C09K8/88 |
主分类号 |
E21B43/12 |
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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