| 发明名称 |
Urea as a cosurfactant in enhanced oil recovery processes |
| 摘要 |
A surfactant system useful for oil recovery comprising salt water, a surfactant, such as a petroleum sulfonate, and urea. Optionally, a C3 to C8 alcohol is additionally present as a cosurfactant.
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| 申请公布号 |
US4493370(A) |
申请公布日期 |
1985.01.15 |
| 申请号 |
US19830461320 |
申请日期 |
1983.01.27 |
| 申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
STAPP, PAUL R.;CHANEY, MARY B. |
| 分类号 |
C09K8/584;(IPC1-7):E21B43/22 |
主分类号 |
C09K8/584 |
| 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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