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公开(公告)号：US20090050320A1
公开(公告)日：2009-02-26
申请号：US11921569
申请日：2006-06-15
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。
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公开(公告)号：US07726398B2
公开(公告)日：2010-06-01
申请号：US11921569
申请日：2006-06-15
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。
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公开(公告)号：US07987907B2
公开(公告)日：2011-08-02
申请号：US12310788
申请日：2007-09-05
CPC分类号： E21B43/20 , C09K8/58 , Y10S507/904 , Y10S507/936
摘要： Method for increasing the recovery of crude oil from a reservoir containing at least one porous and permeable subterranean formation wherein the formation includes sandstone rock and at least one mineral that has a negative zeta potential under the reservoir conditions and wherein crude oil and connate water are present within the pores of the formation. The method is carried out by (A) injecting into the formation a slug of an aqueous displacement fluid that displaces crude oil from the surface of the pores of the formation wherein the pore volume (PV) of the slug of the aqueous displacement fluid is at least 0.2 and less than 1 and the aqueous displacement fluid has a total dissolved solids (TDS) content in the range of 200 to 10,000 ppm and the fraction of the total multivalent cation content of the aqueous displacement fluid to the total multivalent cation content of the connate water is less than 1, and (B) subsequently injecting into the formation a drive water of higher multivalent cation content and/or higher total dissolved solids content than the aqueous displacement fluid.
摘要翻译： 从含有至少一个多孔和可渗透的地层的储层中增加原油的回收率的方法，其中所述地层包括砂岩岩石和至少一种在储层条件下具有负ζ电位的矿物，并且其中存在原油和原生水 在地层的孔内。 该方法通过以下步骤进行：（A）向地层中注入含水置换液体的块状物，所述含水置换液体从地层孔隙的表面取代原油，其中含水置换流体的矿渣的孔体积（PV） 至少0.2和小于1，并且含水置换流体的总溶解固体（TDS）含量在200至10,000ppm的范围内，并且含水置换流体的总多价阳离子含量与总多价阳离子含量的比例相对于 原生水小于1，（B）随后向该地层注入含水位移流体中较高的多价阳离子含量和/或更高的总溶解固体含量的驱动水。
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公开(公告)号：US07600567B2
公开(公告)日：2009-10-13
申请号：US11596974
申请日：2005-05-19
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。
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公开(公告)号：US07419938B2
公开(公告)日：2008-09-02
申请号：US11091907
申请日：2005-03-29
申请人： Ian Ralph Collins
发明人： Ian Ralph Collins
CPC分类号： C09K8/82 , C09K8/52 , C09K8/54 , C09K8/602 , C09K2208/20 , C09K2208/22 , Y10S507/921
摘要： A method of treating a subterranean formation, the method comprising: (A) injecting down a well bore into the formation an admixture of (a) an emulsion having an internal aqueous phase comprising a water-soluble oil or gas field chemical or an aqueous dispersion of a water-dispersible oil or gas field chemical and an external oil phase comprising a liquid hydrocarbon and an oil-soluble surfactant and (b) a demulsifier comprising a solution of a surfactant having a cloud point temperature of above 40° C.; or (B) separately injecting down a well bore into the formation emulsion (a) and demulsifier (b) and generating an admixture of emulsion (a) and demulsifier (b) within the formation.
摘要翻译： 一种处理地下地层的方法，所述方法包括：（A）将井眼向井下注入（a）具有包含水溶性油或气田化学品或水分散体的内部水相的乳液的混合物 的水分散性油或气田化学品和包含液体烃和油溶性表面活性剂的外部油相，和（b）包含浊点温度高于40℃的表面活性剂溶液的破乳剂; 或（B）分别将井眼注入地层乳液（a）和破乳剂（b）中，并在地层内产生乳液（a）和破乳剂（b）的混合物。
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公开(公告)号：US6148913A
公开(公告)日：2000-11-21
申请号：US128624
申请日：1998-08-04
申请人： Ian Ralph Collins
发明人： Ian Ralph Collins
CPC分类号： E21B37/06 , C09K8/524 , C09K8/528 , Y10S507/928
摘要： This invention is a process and a formulation for minimising the squeezing and shut-in operations needed to inhibit scale in a production well using the precipitation squeeze method by injecting into an oil-bearing rock formation a water-miscible formulation comprising: (a) a water-miscible surfactant which is in liquid form, (b) a solution of water-soluble metal salt comprising a multivalent cation and (c) a solution of a water-miscible scale-inhibiting compound comprising an anionic component capable of forming a scale-inhibiting precipitate in situ in the presence of the cations in (b) upon injection into the rock formation, wherein the surfactant is a glycol ether and the minimum ion concentration of the scale inhibiting compound (c) is 50 ppm based on the total weight of the formulation.
摘要翻译： 本发明是一种方法和配方，其用于使用沉淀挤压法将抑制生产井中的水垢所需的挤压和关闭操作最小化，通过将含水岩石注入到含水岩层中，该水混溶性制剂包含：（a） 水溶性表面活性剂，其为液体形式，（b）包含多价阳离子的水溶性金属盐溶液和（c）含水混溶性垢抑制化合物的溶液，该化合物包含能形成刻度尺的阴离子组分， 在（b）中注入岩石中的阳离子存在时，原位抑制沉淀物，其中表面活性剂是二醇醚，并且防垢化合物（c）的最小离子浓度基于 配方。
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公开(公告)号：US20130125630A1
公开(公告)日：2013-05-23
申请号：US13812292
申请日：2011-07-29
IPC分类号： G01N1/00
CPC分类号： G01N1/00 , E21B43/20 , G01N15/082
摘要： The invention relates to an apparatus for simultaneously injecting fluids into a plurality of samples of porous media, comprising: a plurality of holders for the samples of porous media, each holder comprising a sleeve and first and second platens, the first platen having an inlet for an injection fluid and the second platen having an outlet for a produced fluid, and the samples of porous media being arranged, in use, in each of the holders such that the first platen and second platen of each holder contact a first and second end of the sample of porous medium respectively, the inlet of each first platen being in fluid communication with an injection line for injecting fluid into the sample of porous medium arranged in the holder, the outlet of each second platen being in fluid communication with a dedicated effluent line for removing fluid produced from the sample of porous medium arranged in the holder, on-line and/or off-line analytical means for analyzing the fluids injected into each of the samples of porous media, on-line and/or off-line means for analyzing the fluids removed from each of the samples of porous media. A method of simultaneously injecting injection fluid into the samples of porous media is also provided.
摘要翻译： 本发明涉及一种用于同时将流体注入到多孔介质的多个样品中的装置，包括：用于多孔介质样品的多个保持器，每个保持器包括套筒和第一和第二压板，第一压板具有用于 注射流体和第二压板具有用于产生的流体的出口，并且多孔介质样品在使用中被布置在每个保持器中，使得每个保持器的第一压板和第二压板接触第一和第二端 分别为多孔介质的样品，每个第一压板的入口与注射管路流体连通，用于将流体注入布置在保持器中的多孔介质的样品中，每个第二压板的出口与专用流出液流体连通 用于去除由布置在保持器中的多孔介质的样品产生的流体，用于分析注入到e中的流体的在线和/或离线分析装置 多孔介质的样品，在线和/或离线装置，用于分析从多孔介质的每个样品中去除的流体。 还提供了将注入流体同时注入到多孔介质样品中的方法。
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公开(公告)号：US08439111B2
公开(公告)日：2013-05-14
申请号：US13067720
申请日：2011-06-22
CPC分类号： E21B43/20 , C09K8/58 , Y10S507/904 , Y10S507/936
摘要： Hydrocarbons are recovered from subterranean formations by waterflooding. The method comprises passing an aqueous displacement fluid via an injection well through a porous and permeable sandstone formation to release oil and recovering said released oil from a production well spaced from said injection well, wherein (a) the sandstone formation comprises at least one mineral having a negative zeta potential under the formation conditions; (b) oil and connate water are present in the pores of the formation; and (c) the fraction of the divalent cation content of the said aqueous displacement fluid to the divalent cation content of said connate water is less than 1.
摘要翻译： 通过注水从地下地层中回收碳氢化合物。 该方法包括通过注入井将含水置换流体穿过多孔和可渗透的砂岩形成以释放油并从与所述注入井间隔开的生产井回收所述释放的油，其中（a）所述砂岩形成包括至少一种矿物， 在形成条件下的负ζ电位; （b）地层孔隙中存在油和合生水; 和（c）所述含水置换流体的二价阳离子含量与所述原生水的二价阳离子含量的比例小于1。
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公开(公告)号：US20100006283A1
公开(公告)日：2010-01-14
申请号：US12310788
申请日：2007-09-05
IPC分类号： E21B43/241
CPC分类号： E21B43/20 , C09K8/58 , Y10S507/904 , Y10S507/936
摘要： Hydrocarbons are recovered from subterranean formations by waterflooding. The method comprises passing an aqueous displacement fluid via an injection well through a porous and permeable sandstone formation to release oil and recovering said released oil from a production well spaced from said injection well, wherein (a) the sandstone formation comprises at least one mineral having a negative zeta potential under the formation conditions; (b) oil and connate water are present in the pores of the formation; and (c) the fraction of the divalent cation content of the said aqueous displacement fluid to the divalent cation content of said connate water is less than 1.
摘要翻译： 通过注水从地下地层中回收碳氢化合物。 该方法包括通过注入井将含水置换流体穿过多孔和可渗透的砂岩形成以释放油并从与所述注入井间隔开的生产井回收所述释放的油，其中（a）所述砂岩形成包括至少一种矿物， 在形成条件下的负ζ电位; （b）地层孔隙中存在油和合生水; 和（c）所述含水置换流体的二价阳离子含量与所述原生水的二价阳离子含量的比例小于1。
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公开(公告)号：US07306035B2
公开(公告)日：2007-12-11
申请号：US10524050
申请日：2003-08-06
CPC分类号： C09K8/706 , C09K8/512 , C09K8/514 , C09K8/516 , C09K8/52 , C09K8/54 , C09K8/601 , C09K8/887 , C09K2208/20 , Y10S507/902 , Y10S507/906
摘要： A method of introducing an oil field or gas field production chemical into a hydrocarbon-bearing porous subterranean formation penetrated by a wellbore comprising: injecting a gelling composition comprising an aqueous liquid, an oil field or gas field production chemical, and a gellable polymer through the wellbore into the porous subterranean formation wherein the gellable polymer forms a gel within the pores of the subterranean formation thereby encapsulating the production chemical in the gel; and controllably releasing the production chemical from the gel into a formation fluid.
摘要翻译： 一种将油田或气田生产化学物质引入到井眼穿透的含烃多孔地下地层中的方法，包括：通过所述井眼注入包含含水液体，油田或气田生产化学品和可凝胶聚合物的胶凝组合物 井眼进入多孔地层，其中可凝胶聚合物在地层的孔内形成凝胶，从而将生产化学品包封在凝胶中; 并且可控制地将生产化学品从凝胶释放到地层流体中。
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