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    Systems and Methods for Detecting Microannulus Formation and Remediation
    21.
    发明申请
    Systems and Methods for Detecting Microannulus Formation and Remediation 审中-公开
    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。

    Wellbore servicing fluid compositions and use thereof
    22.
    发明授权
    Wellbore servicing fluid compositions and use thereof 有权
    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％。

    Systems and methods for monitoring the properties of a fluid cement composition in a flow path
    23.
    发明授权
    Systems and methods for monitoring the properties of a fluid cement composition in a flow path 有权
    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。

    Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods
    26.
    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

    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： 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。

    Methods and compositions for altering the viscosity of treatment fluids used in subterranean operations
    28.
    发明授权
    Methods and compositions for altering the viscosity of treatment fluids used in subterranean operations 有权
    用于改变地下作业中使用的处理液的粘度的方法和组合物

    公开(公告)号：US08114818B2

    公开(公告)日：2012-02-14

    申请号：US12009027

    申请日：2008-01-16

    申请人： B. Raghava Reddy ,  Narongsak Tonmukayakul

    发明人： B. Raghava Reddy ,  Narongsak Tonmukayakul

    IPC分类号： C09K8/68

    CPC分类号： C09K8/86 ,  C09K8/035 ,  C09K8/502 ,  C09K8/506 ,  C09K8/5083 ,  C09K8/64 ,  C09K8/68 ,  C09K8/82 ,  C09K8/882 ,  C09K2208/30

    摘要： An embodiment of the present invention includes a method comprising introducing a cyclodextrin modifier into a well bore penetrating a subterranean formation. Another embodiment of the present invention includes a method of reducing viscosity of a treatment fluid comprising contacting a treatment fluid comprising a base fluid and a viscosifying agent with at least a cyclodextrin modifier wherein the cyclodextrin modifier interacts with the viscosifying agent to reduce viscosity of the treatment fluid. Another embodiment of the present invention includes a method of increasing viscosity of an aqueous fluid comprising contacting at least a hydrophobically modified polymer and a cyclodextrin modifier in the presence of at least the aqueous fluid, wherein the cyclodextrin modifier interacts with the hydrophobically modified polymer to viscosify the aqueous fluid. Another embodiment of the present invention includes a subterranean treatment fluid comprising a base fluid and a cyclodextrin modifier.

    摘要翻译： 本发明的一个实施方案包括一种方法，其包括将环糊精改性剂引入穿透地层的井筒中。 本发明的另一个实施方案包括降低处理流体的粘度的方法，包括使包含基础流体和增粘剂的处理流体与至少一种环糊精改性剂接触，其中环糊精改性剂与增粘剂相互作用以降低处理粘度 流体。 本发明的另一个实施方案包括增加含水流体的粘度的方法，包括在至少含水流体存在下使至少一种疏水改性聚合物和环糊精改性剂接触，其中该环糊精改性剂与该疏水改性聚合物相互作用以进行粘合 含水液体。 本发明的另一个实施方案包括含有基础流体和环糊精改性剂的地下处理流体。

    Compositions and systems for combatting lost circulation and methods of using the same
    29.
    发明申请
    Compositions and systems for combatting lost circulation and methods of using the same 有权
    打击流通的组成和制度及其使用方法

    公开(公告)号：US20110114318A1

    公开(公告)日：2011-05-19

    申请号：US12621329

    申请日：2009-11-18

    申请人： Ryan G. Ezell ,  B. Raghava Reddy

    发明人： Ryan G. Ezell ,  B. Raghava Reddy

    IPC分类号： E21B43/16

    CPC分类号： C09K8/5045 ,  C09K8/508 ,  C09K8/512

    摘要： A method of servicing a wellbore in a subterranean formation comprising preparing a composition comprising a base fluid, a thixotropic viscosifier, a gellable composition and a bridging material, applying a shear force to the composition such that the composition viscosity decreases, introducing the composition into a lost circulation zone in the subterranean formation, wherein the lost circulation zone comprises cavities greater than about 200 microns in diameter, decreasing the shear force applied to the composition, and allowing the composition to set in the lost circulation zone. A method of servicing a wellbore in a subterranean formation comprising placing a first stream comprising a dilute solution of a metal acrylate into a lost circulation zone in the subterranean formation, placing a second stream comprising an activator into the lost circulation zone, and forming a lost circulation material upon contacting of the metal acrylate and the activator, wherein the lost circulation material forms in from about 0 to about 60 minutes.

    摘要翻译： 一种在地下地层中维护井眼的方法，包括制备包含基础流体，触变增粘剂，可胶凝组合物和桥连材料的组合物，向组合物施加剪切力使得组合物粘度降低，将组合物引入 地下地层中的失水循环区，其中所述失水循环区包括直径大于约200微米的空腔，降低施加于所述组合物的剪切力，并允许所述组合物置于所述失水循环区中。 一种在地下地层中维护井筒的方法，包括将包含金属丙烯酸酯稀溶液的第一物流放置在地层中的失去循环区域中，将包含活化剂的第二物流放入到损失的循环区中， 金属丙烯酸酯和活化剂接触时的循环材料，其中所述失水循环材料形成约0至约60分钟。

    Casing shoes and methods of reverse-circulation cementing of casing
    30.
    发明授权
    Casing shoes and methods of reverse-circulation cementing of casing 有权
    套管鞋套和反向循环固井方法

    公开(公告)号：US07938186B1

    公开(公告)日：2011-05-10

    申请号：US11940095

    申请日：2007-11-14

    申请人： Anthony M. Badalamenti ,  Simon Turton ,  Karl W. Blanchard ,  Ronald R. Faul ,  Michael G. Crowder ,  Henry E. Rogers ,  James E. Griffith ,  B. Raghava Reddy

    发明人： Anthony M. Badalamenti ,  Simon Turton ,  Karl W. Blanchard ,  Ronald R. Faul ,  Michael G. Crowder ,  Henry E. Rogers ,  James E. Griffith ,  B. Raghava Reddy

    IPC分类号： E21B33/12

    CPC分类号： E21B34/102 ,  E21B21/10 ,  E21B33/14

    摘要： A method having the following steps: running a circulation valve comprising a reactive material into the well bore on the casing; reverse-circulating an activator material in the well bore until the activator material contacts the reactive material of the circulation valve; reconfiguring the circulation valve by contact of the activator material with the reactive material; and reverse-circulating a cement composition in the well bore until the reconfigured circulation valve decreases flow of the cement composition. A circulation valve for cementing casing in a well bore, the valve having: a valve housing connected to the casing and comprising a reactive material; a plurality of holes in the housing, wherein the plurality of holes allow fluid communication between an inner diameter of the housing and an exterior of the housing, wherein the reactive material is expandable to close the plurality of holes.

    摘要翻译： 一种具有以下步骤的方法：将包括反应性材料的循环阀运送到所述壳体上的井眼中; 在井眼中使活化剂材料反向循环，直到活化剂材料接触循环阀的反应性材料; 通过活化剂材料与反应性材料的接触来重新配置循环阀; 并使井眼中的水泥组合物反向循环，直到重新配置的循环阀减少水泥组合物的流动。 一种用于将套管固定在井眼中的循环阀，所述阀具有：连接到所述壳体并包括反应性材料的阀壳体; 所述壳体中的多个孔，其中所述多个孔允许所述壳体的内径和所述壳体的外部之间的流体连通，其中所述反应性材料可膨胀以封闭所述多个孔。