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1.发明授权公开(公告)号：US09546314B2
公开(公告)日：2017-01-17
申请号：US13081607
申请日：2011-04-07
申请人： Larry S. Eoff , Jeff W. Loucks , B. Raghava Reddy
发明人： Larry S. Eoff , Jeff W. Loucks , B. Raghava Reddy
摘要： Methods and compositions are described for treating water- and hydrocarbon-producing subterranean formations with a relative permeability modifier at concentrations below those conventionally used in the art, while not substantially impacting the treatment fluid's performance. Treatment fluids described herein comprise a base fluid, a relative permeability modifier comprising a hydrophobically modified hydrophilic polymer, and a companion polymer interacting synergistically with the relative permeability modifier such that the treatment fluid is operable to reduce the water permeability or to increase an aqueous fluid injection pressure of at least a portion of a subterranean formation by more than the relative permeability modifier or the companion polymer acting alone at like concentration. The water permeability reduction and/or the aqueous fluid injection pressure increase can be more than additive. Methods described herein comprise placing such treatment fluids in at least a portion of a subterranean formation.
摘要翻译： 描述了用相对渗透率调节剂处理含水和烃产生地层的方法和组合物，其浓度低于本领域常规使用的浓度，而基本上不影响处理液的性能。 本文所述的处理流体包括基础流体，包含疏水改性的亲水性聚合物的相对渗透性改进剂和与相对渗透性改性剂协同作用的伴侣聚合物，使得处理流体可操作以降低透水性或增加水性流体注射 至少一部分地层的压力大于相对渗透率调节剂或伴随聚合物以相同浓度单独作用的压力。 透水性降低和/或含水流体注射压力增加可以超过添加剂。 本文描述的方法包括将这种处理流体放置在地层的至少一部分中。
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2.发明申请公开(公告)号：US20120258894A1
公开(公告)日：2012-10-11
申请号：US13081607
申请日：2011-04-07
申请人： Larry S. Eoff , Jeff W. Loucks , B. Raghava Reddy
发明人： Larry S. Eoff , Jeff W. Loucks , B. Raghava Reddy
IPC分类号： C09K8/60
摘要： Methods and compositions are described for treating water- and hydrocarbon-producing subterranean formations with a relative permeability modifier at concentrations below those conventionally used in the art, while not substantially impacting the treatment fluid's performance. Treatment fluids described herein comprise a base fluid, a relative permeability modifier comprising a hydrophobically modified hydrophilic polymer, and a companion polymer interacting synergistically with the relative permeability modifier such that the treatment fluid is operable to reduce the water permeability or to increase an aqueous fluid injection pressure of at least a portion of a subterranean formation by more than the relative permeability modifier or the companion polymer acting alone at like concentration. The water permeability reduction and/or the aqueous fluid injection pressure increase can be more than additive. Methods described herein comprise placing such treatment fluids in at least a portion of a subterranean formation.
摘要翻译： 描述了用相对渗透率调节剂处理含水和烃产生地层的方法和组合物，其浓度低于本领域常规使用的浓度，而基本上不影响处理液的性能。 本文所述的处理流体包括基础流体，包含疏水改性的亲水性聚合物的相对渗透性改进剂和与相对渗透性改性剂协同作用的伴侣聚合物，使得处理流体可操作以降低透水性或增加水性流体注射 至少一部分地层的压力大于相对渗透率调节剂或伴随聚合物以相同浓度单独作用的压力。 透水性降低和/或含水流体注射压力增加可以超过添加剂。 本文描述的方法包括将这种处理流体放置在地层的至少一部分中。
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3.发明授权Salt of weak bronsted base and bronsted acid as gelation retarder for crosslinkable polymer compositions 有权弱青铜碱和青铜酸的盐作为可交联聚合物组合物的凝胶阻滞剂公开(公告)号：US09284478B2
公开(公告)日：2016-03-15
申请号：US12716979
申请日：2010-03-03
CPC分类号： C09K8/5083 , C09K8/512 , C09K8/882 , C09K8/887
摘要： According to one embodiment, a treatment fluid for a well includes: (a) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (b) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (c) a salt of a weak Bronsted base and a Bronsted acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition. According to another embodiment, a method for blocking the permeability of a portion of a subterranean formation penetrated by a wellbore is provided, the method including the steps of: (a) selecting the portion of the subterranean formation to be treated; (b) selecting estimated treatment conditions, wherein the estimated treatment conditions comprise temperature over a treatment time; (c) forming a treatment fluid that is a crosslinkable polymer composition comprising: (i) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (ii) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (iii) a salt of a weak Bronsted base and a Bronsted acid; and (iv) water; (d) selecting the water-soluble polymer, the crosslinker, the salt of a weak Bronsted base and a Bronsted acid, and the water, and the proportions thereof, such that the gelation time of the treatment fluid is at least 1 hour when tested under the estimated treatment conditions; and (e) injecting the treatment fluid through the wellbore into the portion of the subterranean formation.
摘要翻译： 根据一个实施方案，用于井的处理流体包括：（a）水溶性聚合物，其中所述水溶性聚合物包含至少一种非酸性烯属不饱和极性单体的聚合物; （b）包含胺基的有机交联剂，其中所述有机交联剂能够交联所述水溶性聚合物; （c）弱布朗斯台德碱和布朗斯台德酸的盐; 和（d）水; 其中所述处理流体是可交联聚合物组合物。 根据另一个实施例，提供了一种用于阻挡由井眼穿透的地下地层的一部分渗透性的方法，所述方法包括以下步骤：（a）选择待处理的地层的部分; （b）选择估计的治疗条件，其中估计的治疗条件包括治疗时间以上的温度; （c）形成作为可交联聚合物组合物的处理流体，其包含：（i）水溶性聚合物，其中所述水溶性聚合物包含至少一种非酸性烯键式不饱和极性单体的聚合物; （ii）包含胺基的有机交联剂，其中所述有机交联剂能够交联所述水溶性聚合物; （iii）弱布朗斯台德碱和布朗斯台德酸的盐; 和（iv）水; （d）选择水溶性聚合物，交联剂，弱布朗斯台德碱和布朗斯台德酸的盐以及水及其比例，使得当测试时处理液的凝胶化时间至少为1小时 在估计治疗条件下; 和（e）将处理流体通过井眼注入到地层的部分中。
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4.发明授权Hydrophobically and cationically modified relative permeability modifiers and associated methods 有权疏水性和阳离子改性的相对渗透性改性剂和相关方法公开(公告)号：US08420576B2
公开(公告)日：2013-04-16
申请号：US12538203
申请日：2009-08-10
CPC分类号： C09K8/508
摘要： Methods comprising introducing a hydrophobically and cationically modified relative permeability modifier into a portion of a subterranean formation. The hydrophobically and cationically modified relative permeability modifier comprises a hydrophilic polymer backbone with a hydrophobic modification and a cationic modification. The cationic modification may comprise at least one cationic compound comprising an alkyl chain length of from 1 to 3 carbons.
摘要翻译： 方法包括将疏水性和阳离子改性的相对渗透性改性剂引入地层的一部分。 疏水性和阳离子改性的相对渗透性改性剂包括具有疏水性改性和阳离子改性的亲水性聚合物主链。 阳离子改性可以包含至少一种包含1至3个碳原子的烷基链长度的阳离子化合物。
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5.发明申请Gellable Treatment Fluids Comprising Quaternary Ammonium Salt Gel-Time Modifiers and Methods for Use Thereof 有权包含季铵盐凝胶时间改性剂的胶凝处理液及其使用方法公开(公告)号：US20130000911A1
公开(公告)日：2013-01-03
申请号：US13171677
申请日：2011-06-29
申请人： B. Raghava Reddy , Larry S. Eoff
发明人： B. Raghava Reddy , Larry S. Eoff
摘要： Methods for reducing the amount of water produced from a subterranean formation can include the use of a gellable treatment fluid that comprises a quaternary ammonium salt as a gel-time modifier. The gellable treatment fluids can comprise an aqueous base fluid, a base polymer comprising an acrylamide monomer unit, an organic crosslinking agent, and a gel-time modifier comprising a quaternary ammonium salt.
摘要翻译： 用于减少从地层产生的水量的方法可以包括使用包含季铵盐作为凝胶时间改性剂的可胶凝处理流体。 可凝胶化的处理流体可以包含含水基础流体，包含丙烯酰胺单体单元的基础聚合物，有机交联剂和包含季铵盐的凝胶时间改性剂。
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公开(公告)号：US08302691B2
公开(公告)日：2012-11-06
申请号：US11655402
申请日：2007-01-19
IPC分类号： E21B43/25 , E21B43/295
CPC分类号： E21B43/006 , C09K8/68 , C09K8/885
摘要： Exemplary embodiments provide methods of treating a subterranean formation to improve gas production therefrom. Exemplary embodiments of the methods comprise introducing a cationic polyorganosiloxane into the subterranean formation, wherein the cationic polyorganosiloxane comprises at least two quaternary ammonium groups.
摘要翻译： 示例性实施例提供了处理地下地层以改善从其中产生气体的方法。 方法的示例性实施方案包括将阳离子聚有机硅氧烷引入到地层中，其中阳离子聚有机硅氧烷包含至少两个季铵基团。
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7.发明申请SALT OF WEAK BRONSTED BASE AND BRONSTED ACID AS GELATION RETARDER FR CROSSLINKABLE POLYMER COMPOSITIONS 有权弱碱性碱和琥珀酸盐作为凝胶阻滞剂FR可交联聚合物组合物公开(公告)号：US20110214866A1
公开(公告)日：2011-09-08
申请号：US12716979
申请日：2010-03-03
CPC分类号： C09K8/5083 , C09K8/512 , C09K8/882 , C09K8/887
摘要： According to one embodiment, a treatment fluid for a well includes: (a) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (b) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (c) a salt of a weak Bronsted base and a Bronsted acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition. According to another embodiment, a method for blocking the permeability of a portion of a subterranean formation penetrated by a wellbore is provided, the method including the steps of: (a) selecting the portion of the subterranean formation to be treated; (b) selecting estimated treatment conditions, wherein the estimated treatment conditions comprise temperature over a treatment time; (c) forming a treatment fluid that is a crosslinkable polymer composition comprising: (i) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (ii) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (iii) a salt of a weak Bronsted base and a Bronsted acid; and (iv) water; (d) selecting the water-soluble polymer, the crosslinker, the salt of a weak Bronsted base and a Bronsted acid, and the water, and the proportions thereof, such that the gelation time of the treatment fluid is at least 1 hour when tested under the estimated treatment conditions; and (e) injecting the treatment fluid through the wellbore into the portion of the subterranean formation.
摘要翻译： 根据一个实施方案，用于井的处理流体包括：（a）水溶性聚合物，其中所述水溶性聚合物包含至少一种非酸性烯属不饱和极性单体的聚合物; （b）包含胺基的有机交联剂，其中所述有机交联剂能够交联所述水溶性聚合物; （c）弱布朗斯台德碱和布朗斯台德酸的盐; 和（d）水; 其中所述处理流体是可交联聚合物组合物。 根据另一个实施例，提供了一种用于阻挡由井眼穿透的地下地层的一部分渗透性的方法，所述方法包括以下步骤：（a）选择待处理的地层的部分; （b）选择估计的治疗条件，其中估计的治疗条件包括治疗时间以上的温度; （c）形成作为可交联聚合物组合物的处理流体，其包含：（i）水溶性聚合物，其中所述水溶性聚合物包含至少一种非酸性烯属不饱和极性单体的聚合物; （ii）包含胺基的有机交联剂，其中所述有机交联剂能够交联所述水溶性聚合物; （iii）弱布朗斯台德碱和布朗斯台德酸的盐; 和（iv）水; （d）选择水溶性聚合物，交联剂，弱布朗斯台德碱和布朗斯台德酸的盐以及水及其比例，使得当测试时处理液的凝胶化时间至少为1小时 在估计治疗条件下; 和（e）将处理流体通过井眼注入到地层的部分中。
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公开(公告)号：US07322414B2
公开(公告)日：2008-01-29
申请号：US11170237
申请日：2005-06-28
IPC分类号： E21B43/27
CPC分类号： C09K8/514 , C09K8/5083 , C09K8/512
摘要： Crosslinkable-polymer compositions are provided that may be useful for, among other things, reducing, stopping, or diverting the flow of fluids in subterranean formations. The crosslinkable-polymer compositions may comprise an aqueous fluid, a chitosan-reacting polymer, chitosan, and a gelation-retarding additive comprising an acid derivative. Various methods of use are also provided.
摘要翻译： 提供可交联聚合物组合物，其可用于减少，停止或转移地下地层中的流体流动。 可交联聚合物组合物可包含水性流体，壳聚糖反应聚合物，壳聚糖和包含酸衍生物的凝胶阻滞添加剂。 还提供了各种使用方法。
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9.发明授权公开(公告)号：US06981552B2
公开(公告)日：2006-01-03
申请号：US10394461
申请日：2003-03-21
IPC分类号： E21B43/00
摘要： The present invention provides a well treatment fluid containing water, a amine-based polymer, and an oxidized polysaccharide-based polymer. The oxidized polysaccharide-based polymer is able to crosslink with the amine-based polymer and produce a gel having a viscosity of greater than about 20 cp, measured at a pH of about 4 to about 7 and at STP. The present invention also provides a method of treating a subterranean formation penetrated by a wellbore comprising the steps of: (a) forming the well treatment fluid, and (b) contacting the subterranean formation with the fluid.
摘要翻译： 本发明提供一种含有水，胺类聚合物和氧化多糖类聚合物的良好处理流体。 氧化的多糖类聚合物能够与胺类聚合物交联并产生粘度大于约20cp的凝胶，其在约4至约7的pH和STP下测量。 本发明还提供了一种处理井眼穿透的地层的方法，包括以下步骤：（a）形成井处理流体，和（b）使地层与流体接触。
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公开(公告)号：US06822061B2
公开(公告)日：2004-11-23
申请号：US10281773
申请日：2002-10-28
申请人： Larry S. Eoff , B. Raghava Reddy
发明人： Larry S. Eoff , B. Raghava Reddy
IPC分类号： C08F2802
CPC分类号： C09K8/487 , C04B24/163 , C04B2103/46 , C09K8/46
摘要： Improved well cement additives, compositions and methods of using the compositions are provided. The well cement additives are basically comprised of a first monomer selected from the group of 2-acrylamido-2-methylpropane sulfonic acid, 2-allyloxy-2-hydroxy-1-propane sulfonic acid and vinylsulfonic acid, a second monomer selected from the group of N,N-dimethylacrylamide, acrylamide, N-vinylpyrrolidone, N-vinylacetamide and acrylonitrile and a third monomer selected from the group of C6 to C22 dimethylaminopropylmethacrylamide bromide, chloride and iodide and C6 to C22 dimethylaminoethylmethacrylate bromide, chloride and iodide.
摘要翻译： 提供了改进的良好的水泥添加剂，组合物和使用该组合物的方法。 井水泥添加剂基本上由选自2-丙烯酰胺基-2-甲基丙磺酸，2-烯丙氧基-2-羟基-1-丙烷磺酸和乙烯基磺酸的第一单体组成，第二单体选自 的N，N-二甲基丙烯酰胺，丙烯酰胺，N-乙烯基吡咯烷酮，N-乙烯基乙酰胺和丙烯腈，以及选自C6至C22二甲基氨基丙基甲基丙烯酰胺溴化物，氯化物和碘化物的第三单体和C 6至C 22甲基丙烯酸二甲基氨基乙酯溴化物，氯化物和碘化物。
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