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1. 发明授权

US07575055B2 Storable nonaqueous cement slurries and methods of using same 有权
标题翻译：可储存的非水性水泥浆料及其使用方法
公开(公告)号：US07575055B2
公开(公告)日：2009-08-18
申请号：US11428771
申请日：2006-07-05
申请人： B. Raghava Reddy , Mfon Antia
发明人： B. Raghava Reddy , Mfon Antia
IPC分类号： E21B33/13
CPC分类号： C09K8/467 , C04B14/06 , C04B24/2611 , C04B28/02 , C04B14/047 , C04B14/064 , C04B24/02 , C04B24/2641 , C04B24/2652 , C04B24/2664 , C04B24/2676 , C04B2103/40
摘要： A method of servicing a wellbore comprising preparing a nonaqueous storable cementitious composition, mixing said composition with an aqueous fluid and, placing said composition into a wellbore. A method of cementing comprising preparing a mixture of cement, a suspension fluid, a dehydrating agent, a first surfactant, and a suspension aid, adding an aqueous solution and a second surfactant to said mixture and, placing the mixture downhole, and allowing the cement to set. A method of producing a lightweight cement slurry comprising the addition of a nonaqueous fluid to cement and water wherein the water content is less than about 40% by total weight of the composition. A method of servicing a wellbore comprising preparing a cement composition comprising from about 80% by weight cement suspended in a nonaqueous fluid, and stabilizing said cement composition through the addition of a suspension aid.
摘要翻译：一种维修井筒的方法，包括制备非水可储存的水泥质组合物，将所述组合物与含水流体混合，并将所述组合物置于井筒中。一种固井方法，包括制备水泥，悬浮液，脱水剂，第一表面活性剂和悬浮助剂的混合物，向所述混合物中加入水溶液和第二表面活性剂，并将混合物置于井下，并允许水泥设置。一种生产轻质水泥浆料的方法，包括向水泥和水中加入非水性流体，其中水含量小于组合物总重量的约40％。一种维修井筒的方法，包括制备包含约80重量％悬浮在非水流体中的水泥的水泥组合物，以及通过添加悬浮助剂来稳定所述水泥组合物。

2. 发明授权

US07449062B2 Cement compositions for reducing gas or water migration and methods of using the same 失效
公开(公告)号：US07449062B2
公开(公告)日：2008-11-11
申请号：US11947454
申请日：2007-11-29
申请人： Ashok K Santra , Mfon Antia , B. Raghava Reddy
发明人： Ashok K Santra , Mfon Antia , B. Raghava Reddy
IPC分类号： C04B24/20
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.

3. 发明申请

US20080006404A1 STORABLE NONAQUEOUS CEMENT SLURRIES AND METHODS OF USING SAME 有权
标题翻译：有条件的非水性水泥浆及其使用方法
公开(公告)号：US20080006404A1
公开(公告)日：2008-01-10
申请号：US11428771
申请日：2006-07-05
申请人： B. Raghava Reddy , Mfon Antia
发明人： B. Raghava Reddy , Mfon Antia
IPC分类号： E21B33/13 , C09K8/00
CPC分类号： C09K8/467 , C04B14/06 , C04B24/2611 , C04B28/02 , C04B14/047 , C04B14/064 , C04B24/02 , C04B24/2641 , C04B24/2652 , C04B24/2664 , C04B24/2676 , C04B2103/40
摘要： A method of servicing a wellbore comprising preparing a nonaqueous storable cementitious composition, mixing said composition with an aqueous fluid and, placing said composition into a wellbore. A method of cementing comprising preparing a mixture of cement, a suspension fluid, a dehydrating agent, a first surfactant, and a suspension aid, adding an aqueous solution and a second surfactant to said mixture and, placing the mixture downhole, and allowing the cement to set. A method of producing a lightweight cement slurry comprising the addition of a nonaqueous fluid to cement and water wherein the water content is less than about 40% by total weight of the composition. A method of servicing a wellbore comprising preparing a cement composition comprising from about 80% by weight cement suspended in a nonaqucous fluid, and stabilizing said cement composition through the addition of a suspension aid.
摘要翻译：一种维修井筒的方法，包括制备非水可储存的水泥质组合物，将所述组合物与含水流体混合，并将所述组合物置于井筒中。一种固井方法，包括制备水泥，悬浮液，脱水剂，第一表面活性剂和悬浮助剂的混合物，向所述混合物中加入水溶液和第二表面活性剂，并将混合物置于井下，并允许水泥设置。一种生产轻质水泥浆料的方法，包括向水泥和水中加入非水性流体，其中水含量小于组合物总重量的约40％。一种维修井筒的方法，包括制备一种水泥组合物，该水泥组合物包含约80重量％的悬浮在非饱和流体中的水泥，以及通过添加悬浮助剂来稳定所述水泥组合物。

4. 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。

5. 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。

6. 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。

7. 发明申请

US20140076550A1 Systems and Methods for Detecting Microannulus Formation and Remediation 审中-公开
标题翻译：检测微生物形成和修复的系统和方法
公开(公告)号：US20140076550A1
公开(公告)日：2014-03-20
申请号：US13615714
申请日：2012-09-14
申请人： Michael T. Pelletier , Christopher Michael Jones , B. Raghava Reddy , Ashok K. Santra
发明人： Michael T. Pelletier , Christopher Michael Jones , B. Raghava Reddy , Ashok K. Santra
IPC分类号： E21B47/005
CPC分类号： E21B33/14 , E21B47/123 , G01N21/47
摘要： Optical analysis systems may be useful in detecting microannulus formation in a wellbore casing and remediating a microannulus. In some instances, a system may include a cement sheath disposed about and in contact with at least a portion of an exterior surface of a casing; and at least one optical computing device arranged coupled to the casing, the at least one optical computing device having at least one integrated computational element configured to optically interact with a material of interest and thereby generate optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the material of interest, the material of interest comprising at least one selected from the group consisting of the cement sheath, a displacement composition disposed between the cement sheath and the exterior surface of the casing, and any combination thereof.
摘要翻译：光学分析系统可用于检测井眼套管中的微小球形成并修复微量元素。在一些情况下，系统可以包括设置在壳体的外表面的至少一部分周围并与其接触的水泥护套; 以及至少一个耦合到所述壳体的光学计算设备，所述至少一个光学计算设备具有至少一个集成的计算元件，其被配置为与感兴趣的材料光学相互作用，从而产生光学相互作用的光，以及至少一个检测器，接收光学相互作用的光并产生对应于感兴趣材料的特征的输出信号，感兴趣的材料包括选自由水泥护套组成的组中的至少一种，置于水泥护套和外表面之间的置换组合物的壳体，以及它们的任何组合。

8. 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％。

9. 发明授权

US08619256B1 Systems and methods for monitoring the properties of a fluid cement composition in a flow path 有权
标题翻译：用于监测流动路径中的流体水泥组合物的性质的系统和方法
公开(公告)号：US08619256B1
公开(公告)日：2013-12-31
申请号：US13615696
申请日：2012-09-14
申请人： Michael T. Pelletier , Christopher Michael Jones , B. Raghava Reddy , Ashok Santra
发明人： Michael T. Pelletier , Christopher Michael Jones , B. Raghava Reddy , Ashok Santra
IPC分类号： G01N15/02
CPC分类号： C04B40/0032 , E21B47/0005 , G01N15/0205 , G01N21/85 , G01N33/383 , G06E1/00 , C04B28/02
摘要： Optical analysis systems may be useful in systems and methods for various properties of fluid cement compositions. For example, a method may include generating with an optical computing device a plurality of output signals corresponding to a plurality of time points and a characteristic of a fluid cement composition at a monitoring location within a flow path, the optical computing device having an electromagnetic radiation source configured to optically interact with the fluid cement composition and an integrated computational element, wherein the integrated computational element is configured to produce and convey optically interacted light to a detector which generates a plurality of output signals corresponding to the characteristic at a plurality of time points; receiving the plurality of output signals with a signal processor communicably coupled to the detector; and determining a difference between at least two of the output signals with the signal processor.
摘要翻译：光学分析系统可用于流体水泥组合物的各种性质的系统和方法中。例如，一种方法可以包括利用光学计算设备产生对应于多个时间点的多个输出信号和在流动路径内的监视位置处的流体水泥组合物的特征，所述光学计算设备具有电磁辐射源，被配置为与流体水泥组合物光学相互作用和集成的计算元件，其中所述集成的计算元件被配置为产生并将光学相互作用的光传送到检测器，所述检测器产生对应于多个时间点处的特性的多个输出信号 ; 用可通信地耦合到所述检测器的信号处理器接收所述多个输出信号; 以及使用信号处理器确定至少两个输出信号之间的差。

10. 发明授权

US08522874B2 Weak organic acid as gelation retarder for crosslinkable polymer compositions 有权
标题翻译：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
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 , C09K8/60
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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