发明名称 |
COMPOSITIONS AND METHODS FOR WELL TREATMENT |
摘要 |
A self-healing cement for use in wells in which carbon dioxide is injected, stored or extracted, comprises a carbonaceous material. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the materia! swells when contacted by carbon dioxide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.
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申请公布号 |
CA2797283(A1) |
申请公布日期 |
2011.11.24 |
申请号 |
CA20112797283 |
申请日期 |
2011.04.28 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
KHALFALLAH, INES;LOIZZO, MATTEO;LECAMPION, BRICE;DENNIS, KATIA |
分类号 |
C04B24/36;C04B28/02;C09K8/473 |
主分类号 |
C04B24/36 |
代理机构 |
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代理人 |
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地址 |
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