| 发明名称 |
LOW TEMPERATURE WELL CEMENTING COMPOSITIONS AND METHODS |
| 摘要 |
<p>Improved hydraulic cement compositions and methods for cementing wells drilled through low temperature earth formations wherein the cement is subjected to freeze-thaw cycling are provided. The compositions are comprised of a hydraulic cement, gypsum cement, fly ash, an alkali metal chloride salt and water. In addition to the alkali metal chloride salt, an alcohol freezing point depressant is optionally also included in the composition.</p> |
| 申请公布号 |
CA2088897(A1) |
申请公布日期 |
1993.08.06 |
| 申请号 |
CA19932088897 |
申请日期 |
1993.02.05 |
| 申请人 |
KUNZI, ROBERT A.;VINSON, EDWARD F.;TOTTEN, PATTY L.;BRAKE, BOBBY G. |
发明人 |
KUNZI, ROBERT A.;VINSON, EDWARD F.;TOTTEN, PATTY L.;BRAKE, BOBBY G. |
| 分类号 |
C04B28/14;C09K8/46;(IPC1-7):C04B7/00;C04B11/00;C04B18/08;C04B22/12;E21B33/14 |
主分类号 |
C04B28/14 |
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