发明名称 |
DELAYED SWELLABLE PARTICLES FOR PREVENTION OF FLUID MIGRATION THROUGH DAMAGED CEMENT SHEATHS |
摘要 |
<p>A method includes providing a cementing composition that includes an aqueous fluid a cementitious particulate and a copolymer particulate which includes a monofunctional monomer a water degradable first crosslinker and a second crosslinker. The method further includes placing the cementing composition in a subterranean formation so as to form a set cement sheath and swelling the copolymer particulate in response to a void created in the set cement sheath. The copolymer particulate allows the cementing composition to set to form the cement sheath before substantial swelling of the copolymer particulate occurs.</p> |
申请公布号 |
IN3120DEN2014(A) |
申请公布日期 |
2015.05.22 |
申请号 |
IN2014DE03120 |
申请日期 |
2014.04.21 |
申请人 |
HALLIBURTON ENERGY SERVICES INC. |
发明人 |
FUNKHOUSER GARY P.;BENKLEY JAMES R. |
分类号 |
C04B24/16;C04B24/26;C04B28/02 |
主分类号 |
C04B24/16 |
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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