发明名称 |
PREVENTION, ACTUATION AND CONTROL OF DEPLOYMENT OF MEMORY-SHAPE POLYMER FOAM-BASED EXPANDABLES |
摘要 |
<p>Actuation and control of the deployment of a polymeric memory-shape material on a wellbore device on a downhole tool may be accomplished by treating a compacted or compressed polymeric memory-shape material with an optional deployment fluid to lower its Tg and/or decrease its rigidity, thereby softening the polymeric shape-memory material at a given temperature and triggering its expansion or recovery at a lower temperature. Recovering the polymeric shape-memory material may occur by its being exposed to a particular temperature range. Alternatively, the deployment of the compacted or com pressed polymeric memory-shape material may be prevented or inhibited by shielding the material with an environment of a fluid that does not substantially lower its Tg, decrease its rigidity or both, and then subsequently contacting the material with a deployment fluid. The deployment fluid may be removed during the method.</p> |
申请公布号 |
CA2897397(A1) |
申请公布日期 |
2014.07.17 |
申请号 |
CA20142897397 |
申请日期 |
2014.01.07 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
JOHNSON, MICHAEL;MAZYAR, OLEG A.;RICHARD, BENNETT M. |
分类号 |
E21B43/08;C08G18/28;C08L75/04;E21B33/12 |
主分类号 |
E21B43/08 |
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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