| 发明名称 |
Secondary recovery of oil and polymers useful for this |
| 摘要 |
Water soluble polymers suitable for use in water flooding during the secondary recovery of oil are described. They are made by a process comprising reacting high molecular weight polyacrylamide with formaldehyde. Processes of water flooding using the polymers are also described.
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| 申请公布号 |
US4088584(A) |
申请公布日期 |
1978.05.09 |
| 申请号 |
US19740529176 |
申请日期 |
1974.12.03 |
| 申请人 |
ALLIED COLLOIDS LIMITED |
发明人 |
SMALLEY, GRAHAM;FROST, DAVID A.;ROTHWELL, ERIC |
| 分类号 |
C08F8/28;C09K8/588;(IPC1-7):E21B43/22;C08G12/06 |
主分类号 |
C08F8/28 |
| 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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