发明名称 |
A POZZOLAN FOR USE IN A CEMENT COMPOSITION HAVING A LOW HEAT OF HYDRATION |
摘要 |
A method of cementing in a subterranean formation comprises: introducing a cement composition into a wellbore penetrating the subterranean formation, wherein at least a portion of the subterranean formation has a temperature less than or equal to the freezing point of an aqueous liquid, and wherein the cement composition comprises: (A) cement; (B) water; and (C) a pozzolan, wherein the cement composition has a heat of hydration of less than 50 BTU per pound; and causing or allowing the cement composition to set in the wellbore after the step of introducing. The pozzolan can have a calcium oxide concentration of less than 15% by weight of the pozzolan, and the pozzolan can have a concentration of at least 15% by weight of the cement. Gas hydrates can be present in or adjacent to a portion of the well. |
申请公布号 |
CA2908946(A1) |
申请公布日期 |
2014.11.13 |
申请号 |
CA20142908946 |
申请日期 |
2014.02.07 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
RAVI, KRISHNA M.;PATIL, RAHUL C.;PATIL, SANDIP P.;JOSEPH, TRISSA;DUFFY, MARCUS |
分类号 |
E21B33/13;C09K8/46 |
主分类号 |
E21B33/13 |
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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