| 发明名称 |
Polyimide quaternary salts as clay stabilization agents |
| 摘要 |
A clayish formation, such as encountered in rock surrounding an oil well bore, is stabilized with a novel quaternary ammonium salt of an imide of polymaleic anhydride. The invention is particularly relevant to hydraulic fracturing fluids used for enhanced oil recovery.
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| 申请公布号 |
GB2244270(A) |
申请公布日期 |
1991.11.27 |
| 申请号 |
GB19910009290 |
申请日期 |
1991.04.30 |
| 申请人 |
* PETROLITE CORPORATION |
发明人 |
JOHN A * SCHIELD;MICHAEL I * NAIMAN;GARY A * SCHERUBEL |
| 分类号 |
C07D207/40;C08F8/44;C09K8/60;C09K17/24 |
主分类号 |
C07D207/40 |
| 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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