发明名称 |
Waterflooding process employing cationic-nonionic copolymers |
摘要 |
This specification discloses a waterflooding process for producing oil from an oil-containing subterranean formation penetrated by an injection well and a production well. An aqueous solution of a copolymer formed of hydrophobic olefinic segments and cationic aromatic hydrophilic segments is injected into and driven through the formation in the production of oil therefrom.
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申请公布号 |
US4110232(A) |
申请公布日期 |
1978.08.29 |
申请号 |
US19770787807 |
申请日期 |
1977.04.15 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
SCHWAB, FREDERICK C.;SHEPPARD, EDWARD W.;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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主权项 |
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地址 |
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