发明授权
- 专利标题: Method for improved oil recovery
- 专利标题(中): 油回收方法
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申请号: US668783申请日: 1984-11-06
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公开(公告)号: US4706749A公开(公告)日: 1987-11-17
- 发明人: Michael E. Hayes , Gary R. Hass , Robert Sharpe , Eirik Nestaas , Mikhail V. Ostrovsky
- 申请人: Michael E. Hayes , Gary R. Hass , Robert Sharpe , Eirik Nestaas , Mikhail V. Ostrovsky
- 申请人地址: ANX Willemstad
- 专利权人: Petroleum Fermentations N.V.
- 当前专利权人: Petroleum Fermentations N.V.
- 当前专利权人地址: ANX Willemstad
- 主分类号: C09K8/58
- IPC分类号: C09K8/58 ; E21B43/40 ; E21B43/22 ; E21B43/34
摘要:
A non-thermal, chemical "huff and puff" method for improved oil recovery is provided in which surfactant/cosurfactant/brine mixtures are used to recover viscous and other hydrocarbons from single wells.
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