发明名称 |
METHODS FOR MAINTAINING ZONAL ISOLATION IN A SUBTERRANEAN WELL |
摘要 |
<p>A cement for use in wells in which carbon dioxide is injected, stored or extracted, comprises elastomer particles. In the event of cement-matrix failure, or bonding failure between the cement/casing interface or the cement/borehole-wall interface, the elastomer particles swell when contacted by carbon dioxide. The swelling seals voids in the cement matrix, or along the bonding interfaces, thereby restoring zonal isolation.</p> |
申请公布号 |
WO2014036545(A1) |
申请公布日期 |
2014.03.06 |
申请号 |
WO2013US57762 |
申请日期 |
2013.09.02 |
申请人 |
SERVICES PETROLIERS SCHLUMBERGER;SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
DAOU, FATMA;BORMAN, CRAIG;PIOT, BERNARD |
分类号 |
E21B33/00 |
主分类号 |
E21B33/00 |
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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