发明公开
- 专利标题： Recovery of heavy oil
- 专利标题（中）： Gewinnung vonSchweröl。
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申请号： EP87307420.7申请日： 1987-08-21
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公开(公告)号： EP0261794A1公开(公告)日： 1988-03-30
- 发明人: Taylor, Alistair Stewart
- 申请人： The British Petroleum Company p.l.c.
- 申请人地址： Britannic House Moor Lane London EC2Y 9BU GB
- 专利权人： The British Petroleum Company p.l.c.
- 当前专利权人： The British Petroleum Company p.l.c.
- 当前专利权人地址： Britannic House Moor Lane London EC2Y 9BU GB
- 代理机构： MacLeod, Malcolm
- 优先权： GB8620706 19860827
- 主分类号： C10G1/04
- IPC分类号： C10G1/04
摘要：
Heavy crude oil is recovered from tar sand by treating the tar sand with a low concentration emulsion of a solvent in water containing 0.5 to 15% by volume of the solvent. Suitable solvents include hydrocarbons and halogenated hydrocarbons.
Solvent-in-water emulsions are efficient in extracting bitumen with the major advantage of greatly reduced solvent: tar sand ratios.
Solvent-in-water emulsions are efficient in extracting bitumen with the major advantage of greatly reduced solvent: tar sand ratios.
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