发明名称 |
Surfactant flooding secondary oil recovery - with surfactant comprising mixt. of petroleum sulphonates of specified average equivalent wt. distribution |
摘要 |
<p>A process for the secondary recovery of oil from subterranean promotions by surfactant flooding is claimed, the injected fluid being an aq. saline (>=20000 ppm total dissolved solids) fluid contg. (a) a surfactant (I) consisting of petroleum sulphonates of specified average equivalent weights, and (b) a solubilising co-surfactant (II) selected from ethoxylated alkanols, ethoxylated alkylphenols, alkyl(aryl) polyethoxy sulphates and/or alkyl(aryl) polyalkoxyalkyl sulphonates. The specified pref. equivalent weight distribution of (I) optimises the surfactant flood formulations and enables accurate predictability of the enhanced recoveries.</p> |
申请公布号 |
DE3005673(A1) |
申请公布日期 |
1981.10.08 |
申请号 |
DE19803005673 |
申请日期 |
1980.02.15 |
申请人 |
TEXACO DEVELOPMENT CORP. |
发明人 |
THOMAS CARLIN,JOSEPH;WILLIS WARE,JAMES;NIEL TYLER,TIMOTHY;EUGENE MILLS,MELVIN |
分类号 |
C09K8/584;(IPC1-7):21B43/22 |
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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