发明名称 |
Method of enhanced oil recovery employing thickened amphoteric surfactant solutions |
摘要 |
A method is disclosed for recovering petroleum from a subterranean reservoir penetrated by at least one injection well and at least one production well comprising: injecting into the reservoir through the injection well a surfactant slug comprising an aqueous solution containing about 0.001 to about 5% by weight of an amphoteric surfactant and an effective amount of a high molecular weight homopolysaccharide gum thickener derived from fungus strains of the genus Schlerotium to provide the surfactant slug with a viscosity exceeding the viscosity of the petroleum in the reservoir; and recovering fluid from the production well.
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申请公布号 |
US4554974(A) |
申请公布日期 |
1985.11.26 |
申请号 |
US19830559524 |
申请日期 |
1983.12.08 |
申请人 |
THE STANDARD OIL COMPANY |
发明人 |
KALPAKCI, BAYRAM;CHAN, KENG S. |
分类号 |
C09K8/584;C09K8/90;(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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