发明名称 |
WELL CEMENTING COMPOSITONS FOR COLD ENVIRONMENT. |
摘要 |
<p>The present invention provides improved well cementing compositions for use in cold environment, where the circulating temperature of the cement is typically within the range of 5 to 20degree C. The improved well cementing compositions are essentially comprised of an aqueous fluid, a hydraulic cement binder and a set-accelerating admixture comprising an alkali or alkaline earth metal nitrate and an alkali or alkaline earth metal nitrite.</p> |
申请公布号 |
MXPA04005482(A) |
申请公布日期 |
2004.12.06 |
申请号 |
MX2004PA05482 |
申请日期 |
2002.12.05 |
申请人 |
SCHLUMBERGER TECHNOLOGY B.V. |
发明人 |
STEPHAN HARRIS |
分类号 |
C04B28/02;C09K8/46;(IPC1-7):C04B28/02;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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