| 发明名称 |
Water soluble surfactant mobility control agent in oil recovery |
| 摘要 |
Certain water-soluble substituted phenol formaldehyde type copolymers retain their viscosities in high brine environments and are highly useful as surfactant-mobility control agents in oil recovery processes.
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| 申请公布号 |
US4374740(A) |
申请公布日期 |
1983.02.22 |
| 申请号 |
US19810225573 |
申请日期 |
1981.01.16 |
| 申请人 |
MOBIL OIL CORPORATION |
发明人 |
CHEN, CATHERINE S. H. |
| 分类号 |
C09K8/588;(IPC1-7):E21B43/22 |
主分类号 |
C09K8/588 |
| 代理机构 |
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代理人 |
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| 地址 |
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