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1. 发明授权

US09284478B2 Salt of weak bronsted base and bronsted acid as gelation retarder for crosslinkable polymer compositions 有权
标题翻译：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
申请人： B. Raghava Reddy , Larry S. Eoff , Julio Estuardo Vasquez , Eldon Dwyann Dalrymple
发明人： B. Raghava Reddy , Larry S. Eoff , Julio Estuardo Vasquez , Eldon Dwyann Dalrymple
IPC分类号： E21B43/22 , C09K8/508 , C09K8/512 , C09K8/88
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。

2. 发明授权

US08962535B2 Methods of diverting chelating agents in subterranean treatments 有权
标题翻译：在地下处理中转移螯合剂的方法
公开(公告)号：US08962535B2
公开(公告)日：2015-02-24
申请号：US12533150
申请日：2009-07-31
申请人： Thomas D. Welton , Bradley L. Todd , Larry S. Eoff
发明人： Thomas D. Welton , Bradley L. Todd , Larry S. Eoff
IPC分类号： C09K8/68 , C09K8/86 , C09K8/528 , C09K8/74
CPC分类号： C09K8/86 , C09K8/528 , C09K8/74
摘要： Methods and compositions including a method comprising: providing a treatment fluid comprising an aqueous fluid, a relative permeability modifier, and a chelating agent; introducing the treatment fluid into a well bore that penetrates a subterranean formation; and allowing at least a first portion of the treatment fluid to penetrate into a portion of the subterranean formation so as to substantially divert a second portion of the treatment fluid to another portion of the subterranean formation.
摘要翻译：方法和组合物，包括一种方法，包括：提供包含水性流体，相对渗透性改性剂和螯合剂的处理流体; 将处理流体引入渗透地下地层的井眼; 并且允许处理流体的至少第一部分渗透到地下地层的一部分中，以便基本上将处理流体的第二部分转移到地下地层的另一部分。

3. 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。

4. 发明申请

US20130000911A1 Gellable Treatment Fluids Comprising Quaternary Ammonium Salt Gel-Time Modifiers and Methods for Use Thereof 有权
标题翻译：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
IPC分类号： E21B43/16 , C09K8/50
CPC分类号： C09K8/12 , C09K8/035 , C09K8/512 , C09K8/52 , C09K8/588 , C09K8/685 , C09K8/882 , C09K8/887
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。

5. 发明授权

US08302691B2 Methods for increasing gas production from a subterranean formation 有权
标题翻译：从地层增加天然气产量的方法
公开(公告)号：US08302691B2
公开(公告)日：2012-11-06
申请号：US11655402
申请日：2007-01-19
申请人： B. Raghava Reddy , Larry S. Eoff , Danhua Leslie Zhang , Eldon D. Dalrymple , Paul S. Brown
发明人： B. Raghava Reddy , Larry S. Eoff , Danhua Leslie Zhang , Eldon D. Dalrymple , Paul S. Brown
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。

6. 发明申请

US20120258894A1 Treatment Fluids Containing a Relative Permeability Modifier and a Companion Polymer Interacting Synergistically Therewith and Methods for Use Thereof 有权
标题翻译：包含相对渗透性改性剂和伴侣聚合物的处理液与其协同作用及其使用方法
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
CPC分类号： C09K8/508 , C09K8/035 , C09K8/588
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。

7. 发明授权

US08251141B2 Methods useful for controlling fluid loss during sand control operations 有权
标题翻译：防砂控制操作中控制流体损失的方法
公开(公告)号：US08251141B2
公开(公告)日：2012-08-28
申请号：US11501595
申请日：2006-08-09
申请人： Larry S. Eoff , David L. Brown , Eldon D. Dalrymple , Paul S. Brown
发明人： Larry S. Eoff , David L. Brown , Eldon D. Dalrymple , Paul S. Brown
IPC分类号： E21B43/22 , E21B43/04
CPC分类号： C09K8/508 , C09K8/5083 , C09K8/5086 , C09K8/512 , C09K8/516 , C09K8/575 , C09K8/5751 , C09K8/68 , E21B21/003
摘要： Methods comprising providing a carrier fluid comprising an aqueous-based component, a water-soluble relative permeability modifier, and gravel particulates wherein the water-soluble relative permeability modifier suspends at least a portion of the gravel particulates; and introducing the carrier fluid into a well bore penetrating a subterranean formation, such that the gravel particulates form a gravel pack near the well bore. In some embodiments, the carrier fluid is substantially free of a viscosifying agent.
摘要翻译：包括提供包含水基组分，水溶性相对渗透性改性剂和砾石颗粒的载体流体的方法，其中水溶性相对渗透性改性剂悬浮至少一部分砾石微粒; 并将载体流体引入穿透地层的井眼中，使得砾石颗粒在井眼附近形成砾石填料。在一些实施方案中，载体流体基本上不含增粘剂。

8. 发明申请

US20120048550A1 Methods Useful for Controlling Fluid Loss in Subterranean Formations 有权
标题翻译：用于控制地层中流体损失的方法
公开(公告)号：US20120048550A1
公开(公告)日：2012-03-01
申请号：US13292185
申请日：2011-11-09
申请人： Ronald G. Dusterhoft , Bradley L. Todd , David W. Ritter , Larry S. Eoff
发明人： Ronald G. Dusterhoft , Bradley L. Todd , David W. Ritter , Larry S. Eoff
IPC分类号： E21B33/13
CPC分类号： C09K8/5083 , C09K8/508 , C09K8/5086 , C09K8/512 , C09K8/516 , C09K8/575 , C09K8/5751 , C09K8/68 , E21B21/003
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 reaction product of a hydrophilic compound and a hydrophilic polymer. In some methods the hydrophilic polymer may be selected from the group consisting of: a polyacrylamide, a polyvinylamine, a poly(vinylamine/vinyl alcohol), an alkyl acrylate polymer, and a combination thereof. In other methods the hydrophilic polymer may be selected from the group consisting of: a polyvinylamine; a poly(vinylamine/vinyl alcohol); a cellulose; a chitosan; a polyamide; a polyetheramine; a polyethyleneimine; a polyhydroxyetheramine; a polylysine; a polysulfone; a gum; a starch, and a combination thereof.
摘要翻译：使用包含亲水性化合物和亲水性聚合物的反应产物的水溶性相对渗透性调节剂降低地层对水性流体的渗透性的方法。在一些方法中，亲水聚合物可选自：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及其组合。在其它方法中，亲水聚合物可以选自：聚乙烯胺; 聚（乙烯胺/乙烯醇）; 纤维素; 壳聚糖聚酰胺; 聚醚胺聚乙烯亚胺聚羟基胺; 聚赖氨酸聚砜; 口香糖淀粉及其组合。

9. 发明申请

US20120012320A1 POLYMERIZING AND ANCHORING A WATER-SOLUBLE POLYMER TO AN IN-PLACE MINERAL SURFACE OF A WELL 有权
标题翻译：将水溶性聚合物聚合并固定在一个良好的矿物矿物表面
公开(公告)号：US20120012320A1
公开(公告)日：2012-01-19
申请号：US12835579
申请日：2010-07-13
申请人： Jimmie D. Weaver , Larry S. Eoff
发明人： Jimmie D. Weaver , Larry S. Eoff
IPC分类号： E21B43/16
CPC分类号： C09K8/80 , C09K8/508
摘要： Methods are provided using an anchoring agent for a water-soluble polymer that is in-place polymerized in a subterranean formation. The anchoring agent comprises a hydrolyzable silyl group that reacts with one or more dangling hydroxyl groups of a mineral surface in the subterranean formation to form “hard” bonds, “anchoring” to the mineral surface. The anchoring agent is selected to have another functional group for covalent attachment to the water-soluble polymer. This can help a water-soluble polymer be anchored to a mineral surface in a subterranean formation. Accordingly, it is believed that monomolecular layers of water-soluble polymer will be formed and anchored to the mineral surface, which will provide excellent elastic properties to the matrix. The monomolecular layers are not expected to interfere with the permeability of the matrix.
摘要翻译：使用在地层中原位聚合的水溶性聚合物的锚固剂提供方法。锚固剂包括与地下地层中的矿物表面的一个或多个悬挂的羟基反应的可水解甲硅烷基，以形成“固定”到矿物表面的“硬”键。选择锚定剂具有用于与水溶性聚合物共价连接的另一官能团。这可以帮助水溶性聚合物锚定在地层中的矿物表面。因此，认为水溶性聚合物的单分子层将形成并锚定到矿物表面，这将为基质提供优异的弹性。预计单分子层不会干扰基质的渗透性。

10. 发明申请

US20110214866A1 SALT OF WEAK BRONSTED BASE AND BRONSTED ACID AS GELATION RETARDER FR CROSSLINKABLE POLYMER COMPOSITIONS 有权
标题翻译：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
申请人： B. Raghava Reddy , Larry S. Eoff , Julio Edtuardo Vasquez , Eldon Dwyann Dalrymple
发明人： B. Raghava Reddy , Larry S. Eoff , Julio Edtuardo Vasquez , Eldon Dwyann Dalrymple
IPC分类号： E21B43/22 , C09K8/42
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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