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240 条记录 (耗时 0.036 秒)

    Methods of reducing the permeabilities of horizontal well bore sections
    51.
    发明授权
    Methods of reducing the permeabilities of horizontal well bore sections 有权
    降低水平井筒截面渗透性的方法

    公开(公告)号：US07159656B2

    公开(公告)日：2007-01-09

    申请号：US10780995

    申请日：2004-02-18

    申请人： Larry S. Eoff ,  B. Raghava Reddy

    发明人： Larry S. Eoff ,  B. Raghava Reddy

    IPC分类号： E21B33/138 ,  E21B43/00

    CPC分类号： C09K8/508

    摘要： Methods of temporarily reducing the permeability of one or more selected sections of a subterranean formation penetrated by a horizontal well bore and the flow of water or water and hydrocarbons or hydrocarbons therefrom are provided. The methods comprise the steps of preparing or providing an aqueous treating fluid comprising water and a water-soluble formation permeability reducing agent, introducing the aqueous treating fluid into one or more selected sections and when required, contacting the one or more selected sections with an aqueous treating fluid comprising water and a formation permeability restoring chemical.

    摘要翻译： 提供了暂时降低由水平井眼穿透的地层的一个或多个选定部分的渗透性的方法，以及水或水和烃或烃的流动。 所述方法包括以下步骤：制备或提供包含水和水溶性地层渗透性降低剂的水性处理流体，将所述水性处理流体引入一个或多个所选择的部分中，并且当需要时，使所述一个或多个选定部分与水 处理包含水和地层渗透性恢复化学品的流体。

    Methods of consolidating formations and forming a chemical casing
    54.
    发明授权
    Methods of consolidating formations and forming a chemical casing 失效
    巩固地层和形成化学外壳的方法

    公开(公告)号：US06823940B2

    公开(公告)日：2004-11-30

    申请号：US10716726

    申请日：2003-11-19

    申请人： B. Raghava Reddy ,  Larry S. Eoff ,  Donald L. Whitfill ,  J. Michael Wilson ,  Denise Berryhill ,  Russel M. Fitzgerald ,  Thomas E. Becker ,  Jimmie D. Weaver

    发明人： B. Raghava Reddy ,  Larry S. Eoff ,  Donald L. Whitfill ,  J. Michael Wilson ,  Denise Berryhill ,  Russel M. Fitzgerald ,  Thomas E. Becker ,  Jimmie D. Weaver

    IPC分类号： E21B33138

    CPC分类号： C09K8/12 ,  C09K8/24 ,  C09K8/508 ,  C09K8/512 ,  C09K8/5751 ,  Y10S507/903

    摘要： Methods of consolidating unconsolidated weak zones or formations and forming chemical casings include drilling a well bore with a drilling fluid having a pH in the range of from about 6 to 10 and that comprises water, a polymeric cationic catalyst which is adsorbed on the mineral surfaces in the weak zone, a particulate curable solid thermoset resin and a delay acid catalyst for curing the solid resin, and forming a filter cake on the walls of the well bore. The filter cake is then contacted with a treating fluid comprising a water soluble or water dispersible polymer which is capable of being cross-linked by a thermoset resin and causing the resin to be hard and tough when cured, and a water soluble or dispersible thermoset resin, whereby the treating fluid components deposit on the filter cake and the thermoset resin cures into a hard and tough cross-linked chemical casing thereon.

    摘要翻译： 固结未固结的弱区或结构并形成化学壳体的方法包括用具有约6至10范围内的pH的钻井液钻井孔，并且包括水，吸附在矿物表面上的聚合阳离子催化剂 弱区，可固化固体的固体热固性树脂和用于固化固体树脂的延迟酸催化剂，以及在孔的壁上形成滤饼。 然后将滤饼与包含水溶性或水分散性聚合物的处理流体接触，所述聚合物能够通过热固性树脂交联并使树脂在固化时硬而坚韧，并且水溶性或分散性热固性树脂 ，由此处理流体组分沉积在滤饼上，并且热固性树脂固化成其上坚硬且韧性的交联化学外壳。

    Well cement additives, compositions and methods
    55.
    发明授权
    Well cement additives, compositions and methods 有权
    水泥添加剂，组合物和方法

    公开(公告)号：US06497283B1

    公开(公告)日：2002-12-24

    申请号：US09988970

    申请日：2001-11-19

    申请人： Larry S. Eoff ,  B. Raghava Reddy

    发明人： Larry S. Eoff ,  B. Raghava Reddy

    IPC分类号： E21B3313

    CPC分类号： C09K8/487 ,  C04B24/163 ,  C04B2103/46 ,  C09K8/46

    摘要： Improved well cement additives, compositions and methods of using the compositions are provided. The well cement additives are basically comprised of a first monomer selected from the group of 2-acrylamido-2-methylpropane sulfonic acid, 2-allyloxy-2-hydroxy-1-propane sulfonic acid and vinylsulfonic acid, a second monomer selected from the group of N,N-dimethylacrylamide, acrylamide, N-vinylpyrrolidone, N-vinylacetamide and acrylonitrile and a third monomer selected from the group of C6 to C22 dimethylaminopropylmethacrylamide bromide, chloride and iodide and C6 to C22 dimethylaminoethylmethacrylate bromide, chloride and iodide.

    摘要翻译： 提供了改进的良好的水泥添加剂，组合物和使用该组合物的方法。 井水泥添加剂基本上由选自2-丙烯酰胺基-2-甲基丙磺酸，2-烯丙氧基-2-羟基-1-丙烷磺酸和乙烯基磺酸的第一单体组成，第二单体选自 的N，N-二甲基丙烯酰胺，丙烯酰胺，N-乙烯基吡咯烷酮，N-乙烯基乙酰胺和丙烯腈，以及选自C6至C22二甲基氨基丙基甲基丙烯酰胺溴化物，氯化物和碘化物的第三单体和C 6至C 22甲基丙烯酸二甲基氨基乙酯溴化物，氯化物和碘化物。

    Gellable Treatment Fluids Having Adjustable Gel Times and Methods Associated Therewith
    56.
    发明申请
    Gellable Treatment Fluids Having Adjustable Gel Times and Methods Associated Therewith 有权
    可凝胶处理液具有可调凝胶时间和与之相关的方法

    公开(公告)号：US20130277054A1

    公开(公告)日：2013-10-24

    申请号：US13454827

    申请日：2012-04-24

    申请人： B. Raghava Reddy ,  Larry S. Eoff ,  Freddy Crespo

    发明人： B. Raghava Reddy ,  Larry S. Eoff ,  Freddy Crespo

    IPC分类号： E21B43/27 ,  C09K8/60

    CPC分类号： C09K8/882 ,  C09K8/5083 ,  C09K8/512 ,  C09K8/887

    摘要： Gellable treatment fluids may have their gel times modified by using a polymer mixture therein that contains two or more polymers having disparate average molecular weights. Methods for treating a subterranean formation using such gellable treatment fluids can comprise providing a gellable treatment fluid comprising a polymer mixture and a crosslinking agent, introducing the gellable treatment fluid into a subterranean formation, and allowing the gellable treatment fluid to form a gel in the subterranean formation. The polymer mixture comprises a base polymer and an addend polymer, where the base polymer and the addend polymer each comprise an acrylamide monomer unit or a derivative thereof and have different average molecular weights, such that a molecular weight distribution of the polymer mixture contains at least two local maxima.

    摘要翻译： 可凝胶化处理液可以通过使用其中含有两种或更多种具有不同平均分子量的聚合物的聚合物混合物来改变凝胶时间。 使用这种可胶凝处理流体处理地下地层的方法可以包括提供包含聚合物混合物和交联剂的可凝胶化处理流体，将可凝胶化处理流体引入地层，并允许可凝胶化处理流体在地下形成凝胶 形成。 聚合物混合物包含基础聚合物和加成聚合物，其中基础聚合物和加成聚合物各自包含丙烯酰胺单体单元或其衍生物，并且具有不同的平均分子量，使得聚合物混合物的分子量分布至少包含 两个本地最大值。

    SALT OF WEAK BRONSTED BASE AND BRONSTED ACID AS GELATION RETARDER FR CROSSLINKABLE POLYMER COMPOSITIONS
    57.
    发明申请
    SALT OF WEAK BRONSTED BASE AND BRONSTED ACID AS GELATION RETARDER FR CROSSLINKABLE POLYMER COMPOSITIONS 有权
    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：US20120279708A9

    公开(公告)日：2012-11-08

    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。

    Methods useful for diverting aqueous fluids in subterranean operations
    58.
    发明授权
    Methods useful for diverting aqueous fluids in subterranean operations 有权
    用于在地下作业中转移含水流体的方法

    公开(公告)号：US08278250B2

    公开(公告)日：2012-10-02

    申请号：US11122836

    申请日：2005-05-05

    申请人： Eldon D. Dalrymple ,  Larry S. Eoff ,  B. Raghava Reddy

    发明人： Eldon D. Dalrymple ,  Larry S. Eoff ,  B. Raghava Reddy

    IPC分类号： E21B33/13

    CPC分类号： C09K8/528 ,  C09K8/5083 ,  C09K8/74

    摘要： Methods of using relative permeability modifiers for the diversion of aqueous fluids during subterranean operations are provided. An embodiment of the present invention provides a method of diverting fluids in a subterranean formation that may comprise providing a treatment fluid comprising an aqueous fluid and a relative permeability modifier that comprises water-soluble polymer with hydrophobic or hydrophilic modification; introducing the treatment fluid into a well bore that penetrates the subterranean formation; and 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 or another aqueous treatment fluid to another portion of the subterranean.

    摘要翻译： 提供了在地下操作期间使用相对渗透性改性剂来转移含水流体的方法。 本发明的一个实施方案提供了一种转移地下地层中的流体的方法，其可以包括提供包含水性流体的处理流体和包含具有疏水或亲水改性的水溶性聚合物的相对渗透性改性剂; 将处理流体引入穿透地下地层的井眼; 以及处理流体的至少第一部分，以渗透到地下地层的一部分中，从而基本上将处理流体的第二部分或另一种含水处理流体转移到地下的另一部分。

    Methods Useful for Diverting Aqueous Fluids in Subterranean Operations
    59.
    发明申请
    Methods Useful for Diverting Aqueous Fluids in Subterranean Operations 有权
    用于在地下作业中分散水溶液的方法

    公开(公告)号：US20120168166A1

    公开(公告)日：2012-07-05

    申请号：US13422646

    申请日：2012-03-16

    申请人： Eldon D. Dalrymple ,  Larry S. Eoff ,  B. Raghava Reddy

    发明人： Eldon D. Dalrymple ,  Larry S. Eoff ,  B. Raghava Reddy

    IPC分类号： E21B43/00

    CPC分类号： C09K8/528 ,  C09K8/5083 ,  C09K8/74

    摘要： Method of diverting fluids in a subterranean formation including the steps of providing a first fluid comprising an aqueous fluid and a hydrophobically modified water-soluble relative permeability modifier; introducing the first fluid into a well bore such that the first treatment fluid penetrates into a portion of the subterranean formation in a sufficient amount so as to substantially divert a second treatment fluid to another portion of the subterranean formation. Then, a second aqueous fluid is introduced into the well bore and substantially diverted from the portion of the subterranean formation penetrated with the first treatment fluid. In some cases, a well treatment operation, such as acid stimulation operation, a clay stabilization operation, or a scale inhibition operation, is performed using the second fluid.

    摘要翻译： 在地层中转移流体的方法，包括提供包含含水流体和疏水改性的水溶性相对渗透性改性剂的第一流体的步骤; 将第一流体引入井眼，使得第一处理流体以足够的量渗入地下地层的一部分，以便将第二处理流体基本上转移到地下地层的另一部分。 然后，将第二含水流体引入井眼中，并且基本上从穿过第一处理流体的地层的部分转向。 在一些情况下，使用第二流体执行井处理操作，例如酸刺激操作，粘土稳定操作或防垢操作。

    Permeability-Modifying Drilling Fluids and Methods of Use
    60.
    发明申请
    Permeability-Modifying Drilling Fluids and Methods of Use 有权
    渗透性修正钻井液及其使用方法

    公开(公告)号：US20110294704A1

    公开(公告)日：2011-12-01

    申请号：US13206848

    申请日：2011-08-10

    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： C09K8/06

    CPC分类号： C09K8/508 ,  C09K8/035 ,  C09K8/5083 ,  C09K8/5086 ,  C09K8/514 ,  C09K8/68 ,  C09K8/72

    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 hydrophobically modified polymer, wherein the hydrophobically modified polymer is a reaction product of: a hydrophilic polymer that comprises a polymer selected from the group consisting of a polyvinylamine, a poly(vinylamine/vinyl alcohol), and an alkyl acrylate polymer; and, a hydrophobic compound comprising at least one alkyl chain having a carbon chain length between about 4 and about 22 carbons. The water-soluble relative permeability modifier may be placed within a subterranean drilling operation such that the water-soluble relative permeability modifier attaches onto surfaces within the subterranean formation to effect permeability of aqueous fluids.

    摘要翻译： 使用包含疏水改性聚合物的水溶性相对渗透性改性剂降低地层对水基流体的渗透性的方法，其中所述疏水改性的聚合物是以下物质的反应产物：亲水性聚合物，其包含选自 由聚乙烯胺，聚（乙烯胺/乙烯醇）和丙烯酸烷基酯聚合物组成的组; 以及包含至少一个碳链长度在约4至约22个碳之间的烷基链的疏水化合物。 水溶性相对渗透性改性剂可以放置在地下钻井操作中，使得水溶性相对渗透性改性剂附着在地层内的表面上以实现含水流体的渗透性。