发明名称 |
Sweep improvement in enhanced oil recovery |
摘要 |
A method for sweep improvement during enhanced oil recovery in a subterranean oil-bearing formation concerns the generation of foam by the dispersion of the displacing fluid in an aqueous solution of a mixed surfactant system. The mixed surfactant system comprises a lignosulfonate foaming agent and a surfactant foaming agent.
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申请公布号 |
US4703797(A) |
申请公布日期 |
1987.11.03 |
申请号 |
US19860831717 |
申请日期 |
1986.02.21 |
申请人 |
CITIES SERVICE CO. |
发明人 |
DJABBARAH, NIZAR F. |
分类号 |
C09K8/594;C09K8/94;E21B43/24;(IPC1-7):E21B43/24;E21B43/22;E21B47/00 |
主分类号 |
C09K8/594 |
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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