发明授权
US4540050A Method of improving conformance in steam floods with steam foaming agents
失效
用蒸汽发泡剂改善蒸汽洪水一致性的方法
- 专利标题： Method of improving conformance in steam floods with steam foaming agents
- 专利标题（中）： 用蒸汽发泡剂改善蒸汽洪水一致性的方法
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申请号： US638919申请日： 1984-08-08
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公开(公告)号： US4540050A公开(公告)日： 1985-09-10
- 发明人: Wann-Sheng Huang , Zean Z. Gassmann , Jeffrey T. Hawkins , Vernon H. Schievelbein , Wilbur L. Hall
- 申请人： Wann-Sheng Huang , Zean Z. Gassmann , Jeffrey T. Hawkins , Vernon H. Schievelbein , Wilbur L. Hall
- 申请人地址： NY White Plains
- 专利权人： Texaco Inc.
- 当前专利权人： Texaco Inc.
- 当前专利权人地址： NY White Plains
- 主分类号： B01F17/02
- IPC分类号： B01F17/02 ; C09K8/592 ; E21B43/24 ; E21B43/22
摘要：
The disclosed invention is a group of steam foaming agents for injection with steam and a non-condensable gas to decrease permeability in steam swept zones and increase oil recovery. The foaming agents have the general formula:RO(R'O).sub.n R"SO.sub.3 Mwhere R is an alkyl radical, branched or linear, or an alkylbenzene, alkyltoluene or alkylxylene group, having from about 8 to about 24 carbon atoms in the alkyl chain, R' is ethyl, propyl or a mixture of ethyl and propyl, n has an average value of about 1 to about 20, R" is ethyl, propyl, hydroxypropyl or butyl and M is an alkali metal or ammonium ion.
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