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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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4.发明授权Weak organic acid as gelation retarder for crosslinkable polymer compositions 有权弱有机酸作为交联聚合物组合物的凝胶阻滞剂公开(公告)号：US08522874B2
公开(公告)日：2013-09-03
申请号：US12716951
申请日：2010-03-03
CPC分类号： C09K8/5083 , C09K8/512 , C09K8/882 , C09K8/887
摘要： 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 weak organic acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition.
摘要翻译： 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）弱有机酸; 和（d）水; 其中所述处理流体是可交联聚合物组合物。
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5.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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7.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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8.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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9.发明申请METHODS TO ENHANCE GAS PRODUCTION FOLLOWING A RELATIVE-PERMEABILITY-MODIFIER TREATMENT 有权相对渗透性改性剂处理方法提高气体生产公开(公告)号：US20090120642A1
公开(公告)日：2009-05-14
申请号：US11985154
申请日：2007-11-14
申请人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple , Don M. Everett , Mauricio Gutierrez , Danhua Zhang
发明人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple , Don M. Everett , Mauricio Gutierrez , Danhua Zhang
IPC分类号： E21B43/267
CPC分类号： C09K8/885 , C09K8/5083 , C09K8/5086 , C09K8/602 , C09K8/882
摘要： Provided embodiments relate to introducing a water-drainage-rate-enhancing agent into a subterranean formation to enhance gas production following a relative-permeability-modifier treatment to decrease undesired water production. An exemplary embodiment provides a method of treating a subterranean formation such that initiation of gas production is enhanced following the treatment, the method comprising: introducing a relative-permeability modifier into at least a portion of the subterranean formation such that the relative-permeability modifier reduces permeability of the portion to aqueous fluids; and introducing a water-drainage-rate-enhancing agent into at least a portion of the subterranean formation. Another exemplary embodiment provides a treatment fluid comprising a carrier fluid, a relative-permeability modifier, and a water-drainage-rate-enhancing agent.
摘要翻译： 所提供的实施方案涉及将引入排水速率的剂引入地层，以在相对渗透调节剂处理之后增强气体产生，以减少不期望的水分产生。 一个示例性的实施方案提供了一种处理地层的方法，使得在处理之后使气体产生的开始得到增强，所述方法包括：将相对渗透性改性剂引入到地层的至少一部分中，使得相对渗透调节剂降低 该部分对含水流体的渗透性; 并将排水速率增强剂引入所述地层的至少一部分。 另一个示例性实施方案提供了包含载体流体，相对渗透性改性剂和排水速率增强剂的处理流体。
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公开(公告)号：US07220708B2
公开(公告)日：2007-05-22
申请号：US10375787
申请日：2003-02-27
CPC分类号： C09K8/32 , C09K8/035 , C09K8/12 , C09K8/5083
摘要： A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternative embodiment, a method is provided for producing a water soluble polymer formed from a hydrophilic monomer for use as a relative permeability modifying polymer.
摘要翻译： 提供了一种用于与钻井液一起使用的相对渗透性改性聚合物的方法和组合物，其包含由疏水或疏水改性的亲水单体和亲水单体形成的水溶性聚合物。 在替代实施方案中，提供了一种用于制备由亲水性单体形成的用作相对渗透性改性聚合物的水溶性聚合物的方法。
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