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11. 发明授权

US07589048B2 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation 有权
公开(公告)号：US07589048B2
公开(公告)日：2009-09-15
申请号：US11471148
申请日：2006-06-20
申请人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
发明人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
IPC分类号： C09K8/588 , C09K8/88 , C09K8/90
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.

12. 发明授权

US07552771B2 Methods to enhance gas production following a relative-permeability-modifier treatment 有权
标题翻译：相对渗透调节剂处理后提高气体产量的方法
公开(公告)号：US07552771B2
公开(公告)日：2009-06-30
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： E21B43/25 , E21B43/295
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。

13. 发明授权

US08420576B2 Hydrophobically and cationically modified relative permeability modifiers and associated methods 有权
标题翻译：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
申请人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple
发明人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple
IPC分类号： C09K8/60 , C09K8/588 , E21B43/22
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。

14. 发明授权

US07322414B2 Crosslinkable-polymer compositions and associated methods 有权
标题翻译：可交联聚合物组合物和相关方法
公开(公告)号：US07322414B2
公开(公告)日：2008-01-29
申请号：US11170237
申请日：2005-06-28
申请人： B. Raghava Reddy , Larry S. Eoff , Eldon D. Dalrymple , Julio Vasquez
发明人： B. Raghava Reddy , Larry S. Eoff , Eldon D. Dalrymple , Julio Vasquez
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。

15. 发明授权

US08623793B2 Hydrophobically and cationically modified relative permeability modifiers and associated methods 有权
标题翻译：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：US08623793B2
公开(公告)日：2014-01-07
申请号：US13534166
申请日：2012-06-27
申请人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple
发明人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple
IPC分类号： C09K8/60 , C09K8/588 , E21B43/22
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; 或甲基丙烯酸烷基二甲基铵乙酯卤化物。

16. 发明授权

US08592353B2 Methods useful for diverting aqueous fluids in subterranean operations 有权
标题翻译：用于在地下作业中转移含水流体的方法
公开(公告)号：US08592353B2
公开(公告)日：2013-11-26
申请号：US13422646
申请日：2012-03-16
申请人： Eldon D. Dalrymple , Larry S. Eoff , B. Raghava Reddy
发明人： Eldon D. Dalrymple , Larry S. Eoff , B. Raghava Reddy
IPC分类号： C09K8/588
CPC分类号： C09K8/528 , C09K8/5083 , C09K8/74
摘要： Method of diverting fluids in a subterranean formation including the steps of providing a first fluid comprising an aqueous fluid and a hydrophobically modified water-soluble relative permeability modifier; introducing the first fluid into a well bore such that the first treatment fluid penetrates into a portion of the subterranean formation in a sufficient amount so as to substantially divert a second treatment fluid to another portion of the subterranean formation. Then, a second aqueous fluid is introduced into the well bore and substantially diverted from the portion of the subterranean formation penetrated with the first treatment fluid. In some cases, a well treatment operation, such as acid stimulation operation, a clay stabilization operation, or a scale inhibition operation, is performed using the second fluid.
摘要翻译：在地层中转移流体的方法，包括提供包含含水流体和疏水改性的水溶性相对渗透性改性剂的第一流体的步骤; 将第一流体引入井眼，使得第一处理流体以足够的量渗入地下地层的一部分，以便将第二处理流体基本上转移到地下地层的另一部分。然后，将第二含水流体引入井眼中，并且基本上从穿过第一处理流体的地层的部分转向。在一些情况下，使用第二流体执行井处理操作，例如酸刺激操作，粘土稳定操作或防垢操作。

17. 发明授权

US08273692B2 Permeability-modifying drilling fluids and methods of use 有权
标题翻译：渗透性改进钻井液及其使用方法
公开(公告)号：US08273692B2
公开(公告)日：2012-09-25
申请号：US13206848
申请日：2011-08-10
申请人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
发明人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
IPC分类号： C09K8/58
CPC分类号： C09K8/508 , C09K8/035 , C09K8/5083 , C09K8/5086 , C09K8/514 , C09K8/68 , C09K8/72
摘要： Methods of reducing the permeability of a subterranean formation to aqueous-based fluids using a water-soluble relative permeability modifier that comprises a hydrophobically modified polymer, wherein the hydrophobically modified polymer is a reaction product of: a hydrophilic polymer that comprises a polymer selected from the group consisting of a polyvinylamine, a poly(vinylamine/vinyl alcohol), and an alkyl acrylate polymer; and, a hydrophobic compound comprising at least one alkyl chain having a carbon chain length between about 4 and about 22 carbons. The water-soluble relative permeability modifier may be placed within a subterranean drilling operation such that the water-soluble relative permeability modifier attaches onto surfaces within the subterranean formation to effect permeability of aqueous fluids.
摘要翻译：使用包含疏水改性聚合物的水溶性相对渗透性改性剂降低地层对水基流体的渗透性的方法，其中所述疏水改性的聚合物是以下物质的反应产物：亲水性聚合物，其包含选自由聚乙烯胺，聚（乙烯胺/乙烯醇）和丙烯酸烷基酯聚合物组成的组; 以及包含至少一个碳链长度在约4至约22个碳之间的烷基链的疏水化合物。水溶性相对渗透性改性剂可以放置在地下钻井操作中，使得水溶性相对渗透性改性剂附着在地层内的表面上以实现含水流体的渗透性。

18. 发明授权

US08158720B2 Crosslinkable polymer compositions and associated methods 有权
标题翻译：可交联聚合物组合物及相关方法
公开(公告)号：US08158720B2
公开(公告)日：2012-04-17
申请号：US11170280
申请日：2005-06-28
申请人： B. Raghava Reddy , Larry S. Eoff , Eldon D. Dalrymple , Julio Vasquez
发明人： B. Raghava Reddy , Larry S. Eoff , Eldon D. Dalrymple , Julio Vasquez
IPC分类号： C08G63/91 , E21B33/13
CPC分类号： C08L5/08 , C08B37/003 , C08K5/0008 , C08K5/09 , C08L33/26 , C08L39/06 , C08L61/02 , C08L67/04 , C08L2666/04 , C08L2666/18 , C08L2666/26
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以包含水性流体，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。

19. 发明申请

US20110034351A1 Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods 有权
标题翻译：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：US20110034351A1
公开(公告)日：2011-02-10
申请号：US12538203
申请日：2009-08-10
申请人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple
发明人： Larry S. Eoff , B. Raghava Reddy , Eldon D. Dalrymple
IPC分类号： C09K8/60
CPC分类号： C09K8/508
摘要： Methods and compositions including a method comprising introducing a hydrophobically and cationically modified relative permeability modifier into a portion of a subterranean formation, wherein the hydrophobically and cationically modified relative permeability modifier comprises a hydrophilic polymer backbone with a hydrophobic modification and a cationic modification.
摘要翻译：方法和组合物，其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中的方法，其中所述疏水性和阳离子改性的相对渗透性改性剂包含具有疏水性改性和阳离子改性的亲水性聚合物主链。

20. 发明授权

US07759292B2 Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation 有权
标题翻译：用于减少水的产生并刺激来自地层的烃生产的方法和组合物
公开(公告)号：US07759292B2
公开(公告)日：2010-07-20
申请号：US10760443
申请日：2004-01-20
申请人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
发明人： Larry S. Eoff , Eldon D. Dalrymple , B. Raghava Reddy
IPC分类号： C09K8/588 , C09K8/88 , C09K8/90
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 methods of the present invention further comprise the step of injecting an acidizing treatment into the subterranean formation. 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，本发明的方法还包括将酸化处理注入到地层中的步骤。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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