| 发明名称 |
HIGH TEMPERATURE DRILLING FLUID COMPONENT |
| 摘要 |
<p>HIGH TEMPERATURE DRILLING FLUID COMPONENT What is disclosed is a cross-linked starch which provides better fluid loss control in well drilling fluids than conventional starches at elevated temperatures. The starch may be derived from any source.</p> |
| 申请公布号 |
CA1240317(A) |
申请公布日期 |
1988.08.09 |
| 申请号 |
CA19850480081 |
申请日期 |
1985.04.25 |
| 申请人 |
AMERICAN MAIZE-PRODUCTS COMPANY |
发明人 |
FRANCIS, H. PAUL;DEBOER, EDWARD D.;WERMERS, VILAS L. |
| 分类号 |
C09K8/20;(IPC1-7):C08B31/00;C09K7/02 |
主分类号 |
C09K8/20 |
| 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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