公开(公告)号：US07600567B2

公开(公告)日：2009-10-13

申请号：US11596974

申请日：2005-05-19

申请人： Charles Arles Christopher ,  Ian Ralph Collins ,  Harry Frampton ,  Folkert Paul Visser

发明人： Charles Arles Christopher ,  Ian Ralph Collins ,  Harry Frampton ,  Folkert Paul Visser

IPC分类号： E21B43/20 ,  E21B43/38

CPC分类号： E21B43/20 ,  B01D61/025 ,  B01D61/04 ,  E21B43/36 ,  E21B43/385 ,  Y02A20/131

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.

摘要翻译： 一种从多孔地下含烃地层回收烃的方法，包括以下步骤：a）向脱盐组件的至少一个反向渗透装置供给具有总溶解固体含量（总盐度）为 至少10,000 ppm; b）在高盐度水进料流的渗透压的压力下，将高盐度水进料流的一部分驱动穿过脱盐组件的反渗透单元中的膜，同时排除至少一部分溶解的固体从交叉 所述膜产生总盐度小于5,000ppm的经处理的低盐度水产物流和浓缩废盐水，其中由膜上进料侧的高盐度水进料流施加的静水压头提供至少一个主要 组分克服渗透压所需的压力; c）从注入井将低盐度水产品流注入含烃地层; d）用低盐度水产品流将烃转移到相关的生产井; 和e）通过生产井从地层回收碳氢化合物。