发明授权
US07186673B2 Stability enhanced water-in-oil emulsion and method for using same
有权
稳定性增强了油包水乳液及其使用方法
- 专利标题： Stability enhanced water-in-oil emulsion and method for using same
- 专利标题（中）： 稳定性增强了油包水乳液及其使用方法
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申请号： US09819332申请日： 2001-03-28
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公开(公告)号： US07186673B2公开(公告)日： 2007-03-06
- 发明人: Ramesh Varadaraj , James R. Bragg , Dennis G. Peiffer , Chester W. Elspass
- 申请人： Ramesh Varadaraj , James R. Bragg , Dennis G. Peiffer , Chester W. Elspass
- 申请人地址： US TX Houston
- 专利权人： ExxonMobil Upstream Research Company
- 当前专利权人： ExxonMobil Upstream Research Company
- 当前专利权人地址： US TX Houston
- 代理机构： ExxonMobil Upstream Research Co. Law Department
- 主分类号： E21B43/22
- IPC分类号： E21B43/22
摘要：
A method for enhancing the stability of a water-in-oil emulsion pretreating at least a portion of the oil prior to emulsification. The pretreatment step may consist of adding polymers to the oil, biotreating the oil, photochemically treating the oil, or combinations thereof. The emulsion may be used in various enhanced oil recovery methods including using the emulsion as a flooding agent to displace hydrocarbons in a subterranean formation, and using the emulsion as a barrier fluid for diverting flow of fluids in the formation.
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