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1. 发明授权

US07726398B2 Water flooding method 有权
标题翻译：水驱法
公开(公告)号：US07726398B2
公开(公告)日：2010-06-01
申请号：US11921569
申请日：2006-06-15
申请人： Ian Ralph Collins , Kang Li , Andrew Guy Livingston , John Dale Williams
发明人： Ian Ralph Collins , Kang Li , Andrew Guy Livingston , John Dale Williams
IPC分类号： E21B43/20 , E21B43/40
CPC分类号： E21B43/20
摘要： A method of recovering hydrocarbons from a porous subterranean hydrocarbon-bearing formation by: (a) reducing the salinity of a saline source water by reverse osmosis using a membrane having a first surface and a second surface by (i) feeding the saline source water to the first surface of the membrane, and (ii) removing treated water of reduced salinity from the second surface of the membrane; and (b) injecting the treated water into the formation; wherein the membrane is selectively permeable to water over dissolved solids such that when (i) the saline source water has a total dissolved solids content of at least 17,500 ppm, and (ii) the applied pressure across the membrane is greater than the osmotic pressure across the membrane and lies within the range 45 to 90 bar (4.5 to 9.0 M Pa), the total dissolved solids content of the treated water is in the range 500 to 5000 ppm.
摘要翻译：一种通过以下方法从多孔地下含烃地层中回收烃的方法：（a）通过使用具有第一表面和第二表面的膜通过反渗透来降低盐水源的盐度，所述膜通过（i）将盐水源供给到膜的第一表面，和（ii）从膜的第二表面去除盐度降低的处理水; 和（b）将经处理的水注入地层; 其中所述膜选择性地可透过水溶解的固体，使得当（i）所述盐水源具有至少17,500ppm的总溶解固体含量时，以及（ii）所述膜上施加的压力大于所述渗透压该膜位于45至90巴（4.5至9.0MPa）的范围内，处理水的总溶解固体含量在500至5000ppm的范围内。

2. 发明申请

US20090050320A1 Water flooding method 有权
标题翻译：水驱法
公开(公告)号：US20090050320A1
公开(公告)日：2009-02-26
申请号：US11921569
申请日：2006-06-15
申请人： Ian Ralph Collins , Kang Li , Andrew Guy Livingston , John Dale Williams
发明人： Ian Ralph Collins , Kang Li , Andrew Guy Livingston , John Dale Williams
IPC分类号： E21B43/20
CPC分类号： E21B43/20
摘要： A method of recovering hydrocarbons from a porous subterranean hydrocarbon-bearing formation by: (a) reducing the salinity of a saline source water by reverse osmosis using a membrane having a first surface and a second surface by (i) feeding the saline source water to the first surface of the membrane, and (ii) removing treated water of reduced salinity from the second surface of the membrane; and (b) injecting the treated water into the formation; wherein the membrane is selectively permeable to water over dissolved solids such that when (i) the saline source water has a total dissolved solids content of at least 17,500 ppm, and (ii) the applied pressure across the membrane is greater than the osmotic pressure across the membrane and lies within the range 45 to 90 bar (4.5 to 9.0 MPa), the total dissolved solids content of the treated water is in the range 500 to 5000 ppm. Increased oil recovery can be achieved.
摘要翻译：一种通过以下方法从多孔地下含烃地层中回收烃的方法：（a）通过使用具有第一表面和第二表面的膜通过反渗透来降低盐水源的盐度，所述膜通过（i）将盐水源供给到膜的第一表面，和（ii）从膜的第二表面去除盐度降低的处理水; 和（b）将经处理的水注入地层; 其中所述膜选择性地可透过水溶解的固体，使得当（i）所述盐水源具有至少17,500ppm的总溶解固体含量时，以及（ii）所述膜上施加的压力大于所述渗透压并且处于45至90巴（4.5至9.0MPa）的范围内，处理水的总溶解固体含量在500至5000ppm的范围内。可以提高石油采收率。

3. 发明申请

US20120261340A1 PROCESS OF SUPPLYING WATER OF CONTROLLED SALINITY 有权
公开(公告)号：US20120261340A1
公开(公告)日：2012-10-18
申请号：US13519057
申请日：2011-01-11
申请人： John Dale Williams
发明人： John Dale Williams
IPC分类号： C02F1/44 , B01D61/08 , B01D61/18
CPC分类号： B01D61/022 , B01D61/025 , B01D61/027 , B01D61/06 , B01D61/12 , B01D61/58 , B01D63/12 , B01D2311/14 , B01D2311/16 , B01D2317/04 , B01D2317/08 , C02F1/44 , C02F1/441 , C02F1/442 , C02F1/444 , C02F2101/101 , C02F2103/08 , C02F2103/10 , C02F2209/05 , C02F2209/40 , C02F2301/043 , C02F2303/10 , Y02A20/131 , Y02W10/30
摘要： A process of producing an injection water stream of controlled salinity and controlled sulfate anion content that is suitable for injection into an oil bearing formation of an oil reservoir, the process comprising the steps of: (a) feeding a source water having a total dissolved solids content in the range of 20,000 to 45,000 ppm and a sulfate anion concentration in the range of 1,000 to 4,000 ppm, preferably, 1,500 ppm to 4,000 ppm to a desalination plant that comprises a plurality of reverse osmosis (RO) membrane units and a plurality of nanofiltration (NF) membrane units wherein the source water is pressurised to a pressure in the range of 350 to 1250 psi absolute, and dividing the source water to provide a feed water for the RO membrane units (hereinafter “RO feed water”) and a feed water for the NF membrane units (hereinafter “NF feed water”); (b) if necessary, increasing the pressure of the RO feed water to a value in the range of 900 to 1250 psi absolute before introducing the RO feed water to the RO membrane units and withdrawing an RO permeate and an RO retentate from the RO membrane units wherein the RO membrane units are operated in either a single-pass, single-stage mode or in a single-pass, two-stage mode and wherein the recovery of RO permeate is in the range of 35 to 75% by volume, preferably, 35 to 60% by volume based on the volume of the RO feed water that is fed to the RO membrane units such that the RO permeate has a total dissolved solids contents of less than 250 ppm, and a sulfate anion concentration of less than 3 ppm; (c) if necessary, reducing the pressure of the NF feed water to a value in the range of 350 to 450 psi absolute before introducing the NF feed water to the NF membrane units and withdrawing an NF permeate and an NF retentate from the NF membrane units wherein the NF membrane units are operated in a single-pass, single-stage mode and wherein the NF membrane units are operated with a recovery of NF permeate in the range of 35 to 60% by volume based on the volume of the NF feed water that is fed to the NF membrane units such that the NF permeate has a total dissolved solids content in the range of 15,000 to 40,000 ppm, preferably, 15,000 to 35,000 ppm, and a sulfate anion concentration of less than 40 ppm, preferably less than 30 ppm; and (d) mixing at least a portion of the RO permeate and at least a portion of the NF permeate in a ratio in the range of 2:1 to 40:1, preferably, 4:1 to 27:1, in particular, 10:1 to 25:1 to provide an injection water having a total dissolved solids content in the range of 500 to 5,000 ppm, and a sulfate anion concentration of less than 7.5 ppm, preferably, less than 5 ppm, more preferably less than 3 ppm.

4. 发明授权

US09492790B2 Process of supplying water of controlled salinity 有权
标题翻译：供水控制盐度的过程
公开(公告)号：US09492790B2
公开(公告)日：2016-11-15
申请号：US13519057
申请日：2011-01-11
申请人： John Dale Williams
发明人： John Dale Williams
IPC分类号： B01D61/02 , B01D61/12 , C02F1/44 , C02F101/10 , B01D61/58 , B01D61/06 , B01D63/12 , C02F103/08 , C02F103/10
CPC分类号： B01D61/022 , B01D61/025 , B01D61/027 , B01D61/06 , B01D61/12 , B01D61/58 , B01D63/12 , B01D2311/14 , B01D2311/16 , B01D2317/04 , B01D2317/08 , C02F1/44 , C02F1/441 , C02F1/442 , C02F1/444 , C02F2101/101 , C02F2103/08 , C02F2103/10 , C02F2209/05 , C02F2209/40 , C02F2301/043 , C02F2303/10 , Y02A20/131 , Y02W10/30
摘要： Process for producing an injection water for an oil reservoir by pressurizing water having a total dissolved solids content of 20,000 to 45,000 ppm and a sulfate concentration of 1,000 to 4,000 ppm to 350 to 1250 psi absolute; and dividing the water into first and second feeds for reverse osmosis (RO) and nanofiltration (NF) units respectively. The units are operated in single-pass, single-stage mode or single-pass, two-stage mode, the NF permeate has a pressure at least 5 psi higher than the RO permeate, and the recoveries of the RO and NF permeates are 35 to 75% and 35 to 60% by volume respectively. RO permeate and NF permeate are mixed in a ratio of 2:1 to 40:1 to provide injection water having a TDS content of 500 to 5,000 ppm, and a sulfate concentration of less than 7.5 ppm.
摘要翻译：用于通过对总溶解固体含量为20,000至45,000ppm和硫酸盐浓度为1,000至4,000ppm至350至1250psi绝对值的水进行加压来生产用于储油器的注入水的方法; 并分别将水分解成用于反渗透（RO）和纳滤（NF）单元的第一和第二进料。这些装置以单程，单级模式或单程两级模式运行，NF渗透物的压力比RO渗透物高至少5 psi，RO和NF渗透物的回收率为35 至75％至35％至60％。 RO渗透物和NF渗透物以2:1〜40:1的比例混合，得到TDS含量为500〜5000ppm，硫酸盐浓度小于7.5ppm的注入水。

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