| 发明名称 |
Substituted-ammonium humate fluid loss control agents for oil-based drilling muds |
| 摘要 |
The disclosure is of particular substituted ammonium humates useful as fluid loss control agents in oil-based drilling fluids. The humate bears a unique compositional make-up.
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| 申请公布号 |
US4889645(A) |
申请公布日期 |
1989.12.26 |
| 申请号 |
US19850699845 |
申请日期 |
1985.02.08 |
| 申请人 |
UNION CAMP CORPORATION |
发明人 |
FIRTH, JR., WILLIAM C. |
| 分类号 |
C08H99/00;C09K8/20;E21B21/00 |
主分类号 |
C08H99/00 |
| 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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