- 专利标题: Methods for recovering oil from an oil reservoir
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申请号: US12290393申请日: 2008-10-30
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公开(公告)号: US07770642B2公开(公告)日: 2010-08-10
- 发明人: Manilal S. Dahanayake , Bruno Langlois , Paul-Joel Derian , Jean-Pierre Marchand
- 申请人: Manilal S. Dahanayake , Bruno Langlois , Paul-Joel Derian , Jean-Pierre Marchand
- 申请人地址: US NJ Cranbury
- 专利权人: Rhodia, Inc.
- 当前专利权人: Rhodia, Inc.
- 当前专利权人地址: US NJ Cranbury
- 代理机构: Ohlandt, Greeley, Ruggiero & Perle, LLP
- 主分类号: E21B43/22
- IPC分类号: E21B43/22
摘要:
There is a method for enhancing the recovery of oil from a reservoir. The method has the step of a) introducing a flooding fluid into the reservoir and b) extracting the oil through a wellbore at a location different than the point of introduction of the flooding fluid into the reservoir. The flooding fluid has water and an amount of one or more non-polymeric viscoelastic surfactants sufficient to provide an interfacial surface tension of about 1 mNm or less and a viscosity of about 10 cps or more. The one or more surfactants is selected from the group of one or more cationic surfactants, one or more zwitterionic surfactants, one or more amphoteric surfactants, one or more anionic surfactants, and combinations thereof.
公开/授权文献
- US20090065205A1 Methods for recovering oil from an oil reservoir 公开/授权日:2009-03-12