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240 条记录 (耗时 0.028 秒)

    Hydrophobically and Cationically Modified Relative Permeability Modifiers and Associated Methods
    13.
    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
    15.
    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。

    Casing shoes and methods of reverse-circulation cementing of casing
    16.
    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。

    Wellbore Servicing Fluid Compositions and Use Thereof
    17.
    发明申请
    Wellbore Servicing Fluid Compositions and Use Thereof 有权
    Wellbore维修流体组合物及其用途

    公开(公告)号：US20110067867A1

    公开(公告)日：2011-03-24

    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： E21B33/13 ,  C09K8/02 ,  C09K8/46 ,  C09K8/487

    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％。

    Compositions and methods of stabilizing subterranean formations containing reactive shales
    18.
    发明授权
    Compositions and methods of stabilizing subterranean formations containing reactive shales 有权
    稳定包含反应性页岩的地下地层的组合物和方法

    公开(公告)号：US07741251B2

    公开(公告)日：2010-06-22

    申请号：US10862132

    申请日：2004-06-04

    申请人： Larry S. Eoff ,  B. Raghava Reddy ,  J. Michael Wilson

    发明人： Larry S. Eoff ,  B. Raghava Reddy ,  J. Michael Wilson

    IPC分类号： C09K8/588 ,  C09K8/88 ,  C09K8/90

    CPC分类号： C09K8/607 ,  C08F220/34 ,  C08F220/60 ,  C09K8/12 ,  C09K8/24 ,  C09K8/5083 ,  C09K8/52 ,  C09K2208/12

    摘要： The present invention relates to well bore stabilization and, more particularly, to treatment fluids that may reduce the tendency of shales to swell and associated methods. In some embodiments, the present invention provides a method of stabilizing a subterranean formation that comprises a shale, the method comprising contacting the subterranean formation that comprises the shale with a treatment fluid, the treatment fluid comprising a base fluid, and a hydrophobically modified polymer. In other embodiments, the treatment fluids comprise a base fluid and a hydrophilically modified polymer. In yet other embodiments, the present invention provides shale-inhibiting components, treatment fluids, and methods of reducing the tendency of shale to swell when exposed to a treatment fluid.

    摘要翻译： 本发明涉及井眼稳定性，更具体地说，涉及可减少页岩膨胀倾向的相关方法的处理流体。 在一些实施方案中，本发明提供了一种稳定包含页岩的地下地层的方法，该方法包括将包含页岩的地层与处理流体接触，处理流体包含基础流体和疏水改性的聚合物。 在其它实施方案中，处理流体包括基础流体和亲水改性的聚合物。 在其它实施方案中，本发明提供了页岩抑制组分，处理流体和当暴露于处理流体时页岩膨胀趋势的方法。

    Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation
    20.
    发明授权
    Methods and compositions for reducing the production of water and stimulating hydrocarbon production from a subterranean formation 有权
    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：US07595283B2

    公开(公告)日：2009-09-29

    申请号：US11471738

    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.

    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，可以通过适当的原位反应来提供相对导磁率调节剂。