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11. 发明授权

US07325611B2 Cement compositions for reducing gas or water migration and methods of using the same 失效
标题翻译：用于还原气体或水迁移的水泥组合物及其使用方法
公开(公告)号：US07325611B2
公开(公告)日：2008-02-05
申请号：US11372001
申请日：2006-03-09
申请人： Ashok K. Santra , Mfon Anita , B. Raghava Reddy
发明人： Ashok K. Santra , Mfon Anita , B. Raghava Reddy
IPC分类号： E21B33/13
CPC分类号： C04B24/20 , C04B28/02 , C09K8/467 , C04B2103/50 , C04B24/163
摘要： A method of cementing a wellbore comprising preparing a cement composition comprising a water-soluble aromatic sulfonated polymer, and placing the cement composition into the wellbore, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having a comparable thickening time and lacking a water-soluble aromatic sulfonated polymer. A cement composition comprising a water-soluble aromatic sulfonated polymer, wherein the cement composition develops a compressive strength of greater than about zero in less time than a similar cement composition having comparable thickening time and lacking a water-soluble aromatic sulfonated polymer.
摘要翻译：一种固井井的方法，包括制备包含水溶性芳族磺化聚合物的水泥组合物，并将该水泥组合物置于井筒中，其中该水泥组合物在比相似的水泥组合物更短的时间内产生大于约零的抗压强度具有可比较的增稠时间和缺乏水溶性芳香族磺化聚合物。一种水泥组合物，其包含水溶性芳族磺化聚合物，其中所述水泥组合物在比具有相当的增稠时间和不含水溶性芳族磺化聚合物的类似水泥组合物的时间内在较短的时间内产生大于约零的压缩强度。

12. 发明授权

US07297664B2 Cement-free zeolite and fly ash settable fluids and methods therefor 失效
标题翻译：无水泥沸石和粉煤灰可固化流体及其方法
公开(公告)号：US07297664B2
公开(公告)日：2007-11-20
申请号：US10901507
申请日：2004-07-28
申请人： Ashok K. Santra , Karen Luke , B. Raghava Reddy
发明人： Ashok K. Santra , Karen Luke , B. Raghava Reddy
IPC分类号： C09K8/74 , E21B43/00
CPC分类号： C09K8/16
摘要： Zeolite and Class F fly ash compositions are provided for use as cement-free settable fluids such as settable spotting fluids and cementitious compositions.
摘要翻译：提供沸石和F级粉煤灰组合物用作无水泥的可固化流体，例如可固化点样液和水泥组合物。

13. 发明授权

US07290613B2 Cement compositions comprising aromatic sulfonated polymers and methods of using the same 有权
标题翻译：包含芳族磺化聚合物的水泥组合物及其使用方法
公开(公告)号：US07290613B2
公开(公告)日：2007-11-06
申请号：US10966937
申请日：2004-10-15
申请人： Ashok K. Santra , B. Raghava Reddy , Russell M. Fitzgerald
发明人： Ashok K. Santra , B. Raghava Reddy , Russell M. Fitzgerald
IPC分类号： E21B33/138
CPC分类号： C04B28/02 , C04B24/163 , C09K8/493
摘要： A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.
摘要翻译：维护渗透地下地层的井筒的方法包括将包含芳族磺化聚合物的水泥组合物置于井眼中并使水泥组合物凝固。在一个实施方案中，水泥组合物的过渡时间小于或等于约60分钟，或者小于或等于约50分钟，小于或等于约40分钟，小于或等于约30分钟，更少大于或等于约20分钟，或小于或等于约10分钟。因此，过渡时间可能足够短以在其组合之前抑制大量气体迁移到水泥组合物中。在另一个实施方案中，当水泥组合物组合时，水泥组合物表现出在大约10分钟或更短时间内从35Bc（Bearden单元）的值增加到约100Bc的粘度。

14. 发明申请

US20120180698A1 Biodegradable Retarder for Cementing Applications 有权
标题翻译：用于水泥应用的生物降解缓凝剂
公开(公告)号：US20120180698A1
公开(公告)日：2012-07-19
申请号：US13433931
申请日：2012-03-29
申请人： Ashok K. Santra , B. Raghava Reddy , D. Chad Brenneis
发明人： Ashok K. Santra , B. Raghava Reddy , D. Chad Brenneis
IPC分类号： C09K8/467
CPC分类号： C04B28/02 , C04B24/10 , C04B24/38 , C04B2103/0072 , C04B2103/0074 , C04B2103/20 , C04B2111/10 , C09K8/467 , Y02W30/92 , Y02W30/94 , C04B14/062 , C04B14/24 , C04B24/06 , C04B24/2641 , C04B2103/50 , C04B18/082 , C04B18/146 , C04B22/0013
摘要： Cement compositions comprising carboxylated inulin and methods of using the same to cement a workspace. In one embodiment, a method of cementing includes providing a cement composition comprising a carboxylated inulin, for example, in a subterranean formation. The method further includes allowing the cement composition to set. In some embodiments, the cement composition has a thickening time of from about 2 hours to about 11 hours. In other embodiments, the cement composition has a viscosity that is about constant for a period of time after the cement composition is placed.
摘要翻译：包含羧化菊粉的水泥组合物及其使用方法来粘合工作空间。在一个实施方案中，固井方法包括提供包含羧化菊粉的水泥组合物，例如在地层中。该方法还包括允许水泥组合物固化。在一些实施方案中，水泥组合物具有约2小时至约11小时的增稠时间。在其它实施方案中，水泥组合物具有在水泥组合物放置之后一段时间内约为一定的粘度。

15. 发明授权

US07694738B2 Methods of using wellbore sealant compositions containing cationic latexes 有权
标题翻译：使用含有阳离子胶乳的井筒密封剂组合物的方法
公开(公告)号：US07694738B2
公开(公告)日：2010-04-13
申请号：US11291719
申请日：2005-12-01
申请人： B. Raghava Reddy , Samuel J. Lewis , Ashok K. Santra , Anthony V. Palmer
发明人： B. Raghava Reddy , Samuel J. Lewis , Ashok K. Santra , Anthony V. Palmer
IPC分类号： E21B33/13
CPC分类号： C04B28/06 , C04B28/14 , C04B28/30 , C04B28/34 , C09K8/467 , C04B24/26 , C04B2103/0094 , C04B2103/40 , C04B24/12 , C04B24/2676
摘要： A method of servicing a wellbore in contact with a subterranean formation, comprising: placing a sealant composition comprising a cementitious material and a cationic latex into the wellbore.
摘要翻译：一种维护与地层接触的井眼的方法，包括：将包含水泥质材料和阳离子胶乳的密封剂组合物放置在井眼中。

16. 发明授权

US07687440B2 Wellbore sealant compositions containing cationic latexes 有权
标题翻译：含有阳离子胶乳的井筒密封剂组合物
公开(公告)号：US07687440B2
公开(公告)日：2010-03-30
申请号：US11291795
申请日：2005-12-01
申请人： B. Raghava Reddy , Samuel J. Lewis , Ashok K. Santra , Anthony V. Palmer
发明人： B. Raghava Reddy , Samuel J. Lewis , Ashok K. Santra , Anthony V. Palmer
IPC分类号： C04B40/00 , C09K8/504 , C09K8/588 , E21B33/13
CPC分类号： C04B28/06 , C04B28/34 , C04B24/003 , C04B24/12 , C04B24/16 , C04B24/2676 , C04B2103/40 , C04B7/32 , C04B11/00 , C04B14/304
摘要： A wellbore sealant composition comprising a cementitious material and a cationic latex into the wellbore.
摘要翻译：井眼密封剂组合物，其包含水泥质材料和阳离子胶乳进入井眼。

17. 发明授权

US09546314B2 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：含有相对渗透性调节剂和与其协同作用的伴侣聚合物的处理液及其使用方法
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
IPC分类号： C09K8/60 , C09K8/508 , C09K8/035 , C09K8/588
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。

18. 发明授权

US09150781B2 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
IPC分类号： C09K8/88 , C09K8/035 , C09K8/512
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。

19. 发明授权

US08940670B2 Cement compositions comprising sub-micron alumina and associated methods 有权
标题翻译：包含亚微米级氧化铝和相关方法的水泥组合物
公开(公告)号：US08940670B2
公开(公告)日：2015-01-27
申请号：US13435701
申请日：2012-03-30
申请人： Rahul Chandrakant Patil , B. Raghava Reddy , Abhimanyu Deshpande , Christopher L. Gordon , Craig W. Roddy , Jiten Chatterji , Roger S. Cromwell
发明人： Rahul Chandrakant Patil , B. Raghava Reddy , Abhimanyu Deshpande , Christopher L. Gordon , Craig W. Roddy , Jiten Chatterji , Roger S. Cromwell
IPC分类号： C09K8/46 , C04B7/32 , E21B33/00 , C04B14/30 , C04B28/02 , C04B28/08 , C09K8/467 , C09K8/473 , C04B111/00
CPC分类号： C09K8/46 , C04B14/303 , C04B28/02 , C04B28/08 , C04B2111/00146 , C04B2111/00215 , C09K8/467 , C09K8/473 , C09K2208/10 , Y02W30/92 , Y02W30/94 , Y02W30/95 , C04B20/008 , C04B24/161 , C04B24/2611 , C04B24/2652 , C04B24/2676 , C04B2103/50 , C04B14/047 , C04B14/106 , C04B14/108 , C04B18/08 , C04B18/141 , C04B18/162 , C04B24/26 , C04B38/10 , C04B14/308
摘要： Methods and compositions that comprise sub-micron alumina for accelerating setting of a cement composition. An embodiment includes a method of cementing in a subterranean formation. The method may comprise introducing a cement composition into the subterranean formation, wherein the cement composition comprises hydraulic cement, sub-micron alumina, and water. The method further may comprise allowing the cement composition to set in the subterranean formation. Another embodiment includes a cement composition that may comprise hydraulic cement, sub-micron alumina, and water.
摘要翻译：包含亚微米氧化铝以促进水泥组合物固化的方法和组合物。一个实施例包括在地层中固井的方法。该方法可以包括将水泥组合物引入到地层中，其中水泥组合物包含水硬性水泥，亚微米级氧化铝和水。该方法还可以包括允许水泥组合物固定在地层中。另一个实施方案包括可以包含水硬性水泥，亚微米级氧化铝和水的水泥组合物。

20. 发明授权

US08636069B2 Wellbore servicing fluid compositions and use thereof 有权
标题翻译： Wellbore维护流体组合物及其用途
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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