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11.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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12.发明申请LEWIS ACID AS GELATION RETARDER FOR CROSSLINKABLE POLYMER COMPOSITIONS 有权LEWIS ACID作为可交联聚合物组合物的凝胶阻滞剂公开(公告)号：US20110214867A1
公开(公告)日：2011-09-08
申请号：US12717004
申请日：2010-03-03
CPC分类号： C09K8/512 , C09K8/5083 , 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 Lewis 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 Lewis acid; and (iv) water; (d) selecting the water-soluble polymer, the crosslinker, the Lewis 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）路易斯酸; 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）路易斯酸; 和（iv）水; （d）选择水溶性聚合物，交联剂，路易斯酸和水及其比例，使得在估计的处理条件下进行试验时，处理液的凝胶化时间至少为1小时; 和（e）将处理流体通过井眼注入到地层的部分中。
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13.发明授权公开(公告)号：US07563750B2
公开(公告)日：2009-07-21
申请号：US10763800
申请日：2004-01-24
CPC分类号： C09K8/5086 , C09K8/5083 , C09K8/514 , C09K8/588
摘要： An exemplary method of the present invention for performing an injection operation includes providing a water-soluble relative permeability modifier, introducing the water-soluble relative permeability modifier into a subterranean formation; and injecting an aqueous injection fluid into the subterranean formation after introducing the water-soluble relative permeability modifier. An exemplary permeability-modifying injection fluid of the present invention contains water-soluble relative permeability modifier. The water-soluble relative permeability modifiers of the present invention include hydrophobically modified water-soluble polymers, hydrophilically modified water-soluble polymers, and water-soluble polymers without hydrophobic or hydrophilic modification.
摘要翻译： 本发明的用于进行注射操作的示例性方法包括提供水溶性相对渗透性改性剂，将水溶性相对渗透性改性剂引入地层; 并在引入水溶性相对渗透性改性剂之后，将水性注射液注入地层。 本发明的示例性渗透性改性注射液含有水溶性相对渗透性改良剂。 本发明的水溶性相对渗透性改性剂包括疏水改性的水溶性聚合物，亲水改性的水溶性聚合物和没有疏水或亲水改性的水溶性聚合物。
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14.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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15.发明授权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可凝胶化处理液及其使用方法公开(公告)号：US09150781B2
公开(公告)日：2015-10-06
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。 可凝胶化处理流体可以包含基础水性水溶液，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：US08636069B2
公开(公告)日：2014-01-28
申请号：US12564562
申请日：2009-09-22
申请人： B. Raghava Reddy , Ron James Crook , Larry S. Eoff
发明人： B. Raghava Reddy , Ron James Crook , Larry S. Eoff
IPC分类号： E21B43/27
CPC分类号： C09K8/512 , C04B24/38 , C04B28/02 , C08J3/075 , C08J2305/04 , C08J2305/06 , C08L5/04 , C08L5/06 , C09K8/467 , C09K8/514 , C09K8/887 , C09K8/90
摘要： A method of servicing a wellbore in contact with a subterranean formation comprising placing a wellbore servicing fluid comprising a polyuronide polymer within the wellbore, contacting the wellbore servicing fluid with a divalent ion source, and allowing the wellbore servicing fluid to form a gel within the wellbore wherein the divalent ion source is located within the wellbore. A method of servicing a wellbore in contact with a subterranean formation comprising (a) placing a wellbore servicing fluid comprising a polyuronide polymer into the wellbore wherein the wellbore servicing fluid contacts a calcium ion source, (b) shutting the wellbore and allowing the servicing fluid to set into place for a period of time, and (c) repeating steps (a) and (b) until the permeability of a structure within the wellbore is reduced by about 50%.
摘要翻译： 一种维护与地下地层接触的井眼的方法，包括将井眼维修流体包括在井筒内的聚脲醚聚合物，使井筒维修流体与二价离子源接触，并允许井筒维修流体在井筒内形成凝胶 其中所述二价离子源位于所述井眼内。 一种维修与地下地层接触的井筒的方法，包括（a）将包含聚脲醚聚合物的井筒维修流体放置在井筒中，其中井筒维修流体接触钙离子源，（b）关闭井眼并允许维修流体 以固定一段时间，（c）重复步骤（a）和（b），直到井眼内的结构的渗透率降低约50％。
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17.发明申请Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods 有权疏水和阳离子改性相对渗透性改性剂及相关方法公开(公告)号：US20120264885A1
公开(公告)日：2012-10-18
申请号：US13534166
申请日：2012-06-27
IPC分类号： C08F265/06
CPC分类号： C09K8/508
摘要： Methods comprising providing a relative permeability modifier that comprises a hydrophilic polymer backbone with a hydrophobic modification and incorporating at least one cationic compound onto the hydrophilic polymer backbone. The hydrophilic polymer is one or more of: a polyacrylamide; a polyvinylamine; a poly(vinylamine/vinyl alcohol); an alkyl acrylate polymer; cellulose; chitosan; a polyamide; a polyetheramine; a polyhydroxyetheramine; a polylysine; a polysulfone; a gum; or a starch. The hydrophobic modification is achieved either by reacting the hydrophilic polymer with a hydrophobic compound or by a polymerization reaction product of a hydrophilic monomer and a hydrophobically modified hydrophilic monomer. The hydrophobic compound has an alkyl chain length from 4 to 22 carbons and is one or more of: an alkyl acrylate; an alkyl methacrylate; an alkyl acrylamide; an alkyl methacrylamide; or an alkyl dimethylammoniumethyl methacrylate halide.
摘要翻译： 方法包括提供相对渗透性调节剂，其包含具有疏水性修饰的亲水性聚合物主链并将至少一种阳离子化合物并入亲水性聚合物主链上。 亲水性聚合物是以下中的一种或多种：聚丙烯酰胺; 聚乙烯胺 聚（乙烯胺/乙烯醇）; 丙烯酸烷基酯聚合物; 纤维素; 壳聚糖; 聚酰胺; 聚醚胺 聚羟基胺; 聚赖氨酸 聚砜; 口香糖 或淀粉。 通过使亲水性聚合物与疏水化合物反应或通过亲水性单体和疏水改性的亲水性单体的聚合反应产物来实现疏水改性。 疏水性化合物的烷基链长度为4〜22个碳原子，为丙烯酸烷基酯中的一种或多种。 甲基丙烯酸烷基酯 烷基丙烯酰胺; 烷基甲基丙烯酰胺; 或烷基二甲基铵乙基甲基丙烯酸酯卤化物。
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公开(公告)号：US20110067867A1
公开(公告)日：2011-03-24
申请号：US12564562
申请日：2009-09-22
申请人： B. Raghava Reddy , Ron James Crook , Larry S. Eoff
发明人： B. Raghava Reddy , Ron James Crook , Larry S. Eoff
CPC分类号： C09K8/512 , C04B24/38 , C04B28/02 , C08J3/075 , C08J2305/04 , C08J2305/06 , C08L5/04 , C08L5/06 , C09K8/467 , C09K8/514 , C09K8/887 , C09K8/90
摘要： A method of servicing a wellbore in contact with a subterranean formation comprising placing a wellbore servicing fluid comprising a polyuronide polymer within the wellbore, contacting the wellbore servicing fluid with a divalent ion source, and allowing the wellbore servicing fluid to form a gel within the wellbore wherein the divalent ion source is located within the wellbore. A method of servicing a wellbore in contact with a subterranean formation comprising (a) placing a wellbore servicing fluid comprising a polyuronide polymer into the wellbore wherein the wellbore servicing fluid contacts a calcium ion source, (b) shutting the wellbore and allowing the servicing fluid to set into place for a period of time, and (c) repeating steps (a) and (b) until the permeability of a structure within the wellbore is reduced by about 50%.
摘要翻译： 一种维护与地下地层接触的井眼的方法，包括将井眼维修流体包括在井筒内的聚脲醚聚合物，使井筒维修流体与二价离子源接触，并允许井筒维修流体在井筒内形成凝胶 其中所述二价离子源位于所述井眼内。 一种维修与地下地层接触的井筒的方法，包括（a）将包含聚脲醚聚合物的井筒维修流体放置在井筒中，其中井筒维修流体接触钙离子源，（b）关闭井眼并允许维修流体 以固定一段时间，（c）重复步骤（a）和（b），直到井眼内的结构的渗透率降低约50％。
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19.发明授权Compositions and methods of stabilizing subterranean formations containing reactive shales 有权稳定包含反应性页岩的地下地层的组合物和方法公开(公告)号：US07741251B2
公开(公告)日：2010-06-22
申请号：US10862132
申请日：2004-06-04
CPC分类号： C09K8/607 , C08F220/34 , C08F220/60 , C09K8/12 , C09K8/24 , C09K8/5083 , C09K8/52 , C09K2208/12
摘要： The present invention relates to well bore stabilization and, more particularly, to treatment fluids that may reduce the tendency of shales to swell and associated methods. In some embodiments, the present invention provides a method of stabilizing a subterranean formation that comprises a shale, the method comprising contacting the subterranean formation that comprises the shale with a treatment fluid, the treatment fluid comprising a base fluid, and a hydrophobically modified polymer. In other embodiments, the treatment fluids comprise a base fluid and a hydrophilically modified polymer. In yet other embodiments, the present invention provides shale-inhibiting components, treatment fluids, and methods of reducing the tendency of shale to swell when exposed to a treatment fluid.
摘要翻译： 本发明涉及井眼稳定性，更具体地说，涉及可减少页岩膨胀倾向的相关方法的处理流体。 在一些实施方案中，本发明提供了一种稳定包含页岩的地下地层的方法，该方法包括将包含页岩的地层与处理流体接触，处理流体包含基础流体和疏水改性的聚合物。 在其它实施方案中，处理流体包括基础流体和亲水改性的聚合物。 在其它实施方案中，本发明提供了页岩抑制组分，处理流体和当暴露于处理流体时页岩膨胀趋势的方法。
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20.发明授权公开(公告)号：US07595283B2
公开(公告)日：2009-09-29
申请号：US11471738
申请日：2006-06-20
CPC分类号： C09K8/508 , C09K8/035 , C09K8/5083 , C09K8/5086 , C09K8/514 , C09K8/68 , C09K8/72
摘要： The present invention relates to subterranean treatment fluids, and more particularly, the present invention relates to subterranean treatment fluids comprising relative permeability modifiers and methods for using such subterranean treatment fluids in subterranean operations to reduce the production of water from and stimulate hydrocarbon production in a subterranean formation. In certain embodiments, the methods of the present invention generally comprise the steps of providing a permeability-modifying aqueous treatment fluid comprising a relative permeability modifier and contacting a subterranean formation with the permeability-modifying aqueous treatment fluid. Optionally, the permeability-modifying aqueous treatment fluid may be injected in the subterranean formation at a pressure sufficient to create or enhance at least one fracture therein. In another embodiment, the relative permeability modifier may be provided by appropriate reaction in situ.
摘要翻译： 本发明涉及地下处理流体，更具体地说，本发明涉及包含相对渗透性改性剂的地下处理流体和在地下操作中使用这种地下处理流体的方法，以减少地下水的产生并刺激地下烃的产生 形成。 在某些实施方案中，本发明的方法通常包括提供包含相对渗透性改性剂并使地层与渗透性改性水处理流体接触的渗透性改性水处理流体的步骤。 任选地，渗透性改性水处理流体可以以足以产生或增强其中的至少一个裂缝的压力注入到地下地层中。 在另一个实施方案中，可以通过适当的原位反应来提供相对导磁率调节剂。
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