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    Treatment fluids containing a relative permeability modifier and a companion polymer interacting synergistically therewith and methods for use thereof
    31.
    发明授权
    Treatment fluids containing a relative permeability modifier and a companion polymer interacting synergistically therewith and methods for use thereof 有权
    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。

    Wellbore servicing fluid compositions and use thereof
    33.
    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％。

    Wellbore Servicing Fluid Compositions and Use Thereof
    35.
    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
    36.
    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。

    Drilling fluid component
    37.
    发明授权
    Drilling fluid component 有权
    钻井液成分

    公开(公告)号：US07220708B2

    公开(公告)日：2007-05-22

    申请号：US10375787

    申请日：2003-02-27

    申请人： Frank Zamora ,  Larry S. Eoff ,  Eldon Dwyann Dalrymple ,  B. Raghava Reddy

    发明人： Frank Zamora ,  Larry S. Eoff ,  Eldon Dwyann Dalrymple ,  B. Raghava Reddy

    IPC分类号： C09K8/588 ,  C09K8/22 ,  E21B21/14

    CPC分类号： C09K8/32 ,  C09K8/035 ,  C09K8/12 ,  C09K8/5083

    摘要： A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternative embodiment, a method is provided for producing a water soluble polymer formed from a hydrophilic monomer for use as a relative permeability modifying polymer.

    摘要翻译： 提供了一种用于与钻井液一起使用的相对渗透性改性聚合物的方法和组合物，其包含由疏水或疏水改性的亲水单体和亲水单体形成的水溶性聚合物。 在替代实施方案中，提供了一种用于制备由亲水性单体形成的用作相对渗透性改性聚合物的水溶性聚合物的方法。

    Well treatment fluid and methods with oxidized chitosan-based compound
    39.
    发明授权
    Well treatment fluid and methods with oxidized chitosan-based compound 失效
    处理液和氧化壳聚糖类化合物的方法

    公开(公告)号：US06764981B1

    公开(公告)日：2004-07-20

    申请号：US10394898

    申请日：2003-03-21

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

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

    IPC分类号： C09K702

    CPC分类号： C09K8/68 ,  C09K8/08 ,  C09K8/514

    摘要： The present invention provides a well treatment fluid that contains water, an oxidized chitosan-based compound, and a water-soluble compound having carbonyl groups, wherein the oxidized chitosan-based compound has the property of being soluble in water up to about 2 wt % while maintaining a viscosity of less than about 1000 cp. The water used for the well treatment fluid is selected from the group consisting of fresh water, seawater, natural brine, formulated brine, 2% KCl solution, and any mixtures in any proportion thereof. The present invention also provides a method of treating a subterranean formation penetrated by a wellbore comprising the steps of: (a) forming the well treatment fluid, and (b) contacting the subterranean formation with the fluid.

    摘要翻译： 本发明提供一种包含水，氧化壳聚糖类化合物和具有羰基的水溶性化合物的良好处理液，其中所述氧化壳聚糖类化合物具有在水中可溶解的性质，直至约2重量％ 同时保持小于约1000cp的粘度。 用于井处理流体的水选自淡水，海水，天然盐水，配制的盐水，2％KCl溶液和任何比例的任何混合物。 本发明还提供了一种处理井眼穿透的地层的方法，包括以下步骤：（a）形成井处理流体，和（b）使地层与流体接触。

    Gellable treatment fluids having adjustable gel times and methods associated therewith
    40.
    发明授权
    Gellable treatment fluids having adjustable gel times and methods associated therewith 有权
    可凝胶化处理液具有可调凝胶时间和与之相关的方法

    公开(公告)号：US09175206B2

    公开(公告)日：2015-11-03

    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： C09K8/508 ,  C09K8/512

    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。