| 发明名称 |
Method for ensuring injectivity of polymer solutions |
| 摘要 |
Without interrupting an enhanced oil recovery polymer flood of a subterranean formation, ultrasonic energy is used to maintain the injectivity of a polymer solution during the polymer flood by modifying the properties of the injected polymer solution.
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| 申请公布号 |
US5139087(A) |
申请公布日期 |
1992.08.18 |
| 申请号 |
US19910708164 |
申请日期 |
1991.05.31 |
| 申请人 |
UNION OIL COMPANY OF CALIFORNIA |
发明人 |
HUTCHINS, RICHARD D.;DOVAN, HOAI T. |
| 分类号 |
C09K8/588;E21B43/00 |
主分类号 |
C09K8/588 |
| 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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