发明名称 |
Desalination Method |
摘要 |
A method of recovering hydrocarbons from a porous subterranean hydrocarbon-bearing formation comprising the steps of : a) feeding to at least on reverse osmosis unit of a desalination assembly a high salinity water feed stream having a total dissolved solids content (total salinity) of at least 10,000 ppm; b) driving a portion of the high salinity water feed stream across a membrane in the reverse osmosis unit of the desalination assembly at a pressure above the osmotic pressure of the high salinity water feed stream while excluding at least a portion of the dissolved solids from crossing said membrane to produce a treated low salinity water product stream having a total salinity of less than 5,000 ppm and a concentrated waste brine stream wherein the hydrostatic head exerted by the high salinity water feed stream on the feed side of the membrane provides at least a major component of the pressure required to overcome the osmotic pressure; c) injecting the low salinity water product stream into the hydrocarbon-bearing formation from an injection well; d) displacing the hydrocarbons with the low salinity water product stream toward an associated production well; and e) recovering hydrocarbons from the formation via the production well.
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申请公布号 |
US2008169098(A1) |
申请公布日期 |
2008.07.17 |
申请号 |
US20050596974 |
申请日期 |
2005.05.19 |
申请人 |
BP EXPLORATION OPERATING COMPANY LIMITED |
发明人 |
CHRISTOPHER CHARLES ARLES;COLLINS IAN RALPH |
分类号 |
E21B43/20;B01D61/10;E21B43/36;E21B43/38 |
主分类号 |
E21B43/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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