发明名称 |
DELAYED WATER-SWELLING MATERIALS AND METHODS OF USE |
摘要 |
<p>A water absorbing composition includes a particle having a core of a water- swelling material. A coating substantially surrounds the core that temporarily prevents contact of water with the water-swelling material. The coating may be formed from a layer of water degradable material or a non-water-degradable, non- water absorbent encapsulating layer. A quantity of particles including delayed water-swelling particles formed at least in part from a water-swelling material and, optionally, non- water-swelling particles of the same or different size distributions can be used in treating a formation penetrated by a wellbore. A slurry of the particles is formed with a carrier fluid. The slurry of particles is introduced into the wellbore of the formation to facilitate treatment.</p> |
申请公布号 |
CA2668857(C) |
申请公布日期 |
2016.01.12 |
申请号 |
CA20072668857 |
申请日期 |
2007.10.30 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
WILLBERG, DEAN M.;NOSOVA, KSENIYA;BULOVA, MARINA;JAMES, SIMON;SOKOLOV, SERGEY |
分类号 |
E21B43/267;C09K8/03;C09K8/516;C09K8/80;E21B33/138 |
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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