发明名称 |
COMPOSITIONS AND METHODS FOR WELL COMPLETIONS |
摘要 |
Incorporation of carbonaceous materials in a cement slurry increases the linear thermal- expansion coefficient of the set cement. When placed in a subterranean well having at least one casing string, cement sheaths with linear thermal-expansion coefficients similar to that of the casing will be subjected to lower compressive and tensile stresses during downhole-temperature changes. Such cement slurries are particularly advantageous in the context of thermal -recovery wells. |
申请公布号 |
CA2808203(C) |
申请公布日期 |
2016.09.13 |
申请号 |
CA20102808203 |
申请日期 |
2010.08.18 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
LOISEAU, ANTHONY;CHOUGNET-SIRAPIAN, ALICE;TOMILINA, ELENA;JAMES, SIMON GARETH |
分类号 |
C04B28/02;C09K8/467;E21B33/13 |
主分类号 |
C04B28/02 |
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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