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    Oxidative internal breaker for viscoelastic surfactant fluids
    11.
    发明授权
    Oxidative internal breaker for viscoelastic surfactant fluids 有权
    用于粘弹性表面活性剂流体的氧化内部破碎机

    公开(公告)号：US07879770B2

    公开(公告)日：2011-02-01

    申请号：US11532565

    申请日：2006-09-18

    申请人： Lijun Lin ,  Yiyan Chen ,  Philip F. Sullivan ,  Belgin Baser ,  Carlos Abad ,  Jesse C. Lee

    发明人： Lijun Lin ,  Yiyan Chen ,  Philip F. Sullivan ,  Belgin Baser ,  Carlos Abad ,  Jesse C. Lee

    IPC分类号： C09K8/74 ,  C09K8/68 ,  C09K8/524 ,  C09K8/60 ,  C09K8/528

    CPC分类号： C09K8/68 ,  C09K8/602 ,  C09K2208/26

    摘要： Compositions and methods are given for delayed breaking of viscoelastic surfactant gels inside formation pores, particularly for use in hydraulic fracturing. Breaking inside formation pores is accomplished without mechanical intervention or use of a second fluid. Oxidizing agents such as air, oxygen, persulfates, bromates, peroxides, and others are used. The break may be accelerated, for example with a free radical propagating species, or retarded, for example with an oxygen scavenger. In certain brines, for example bromide brines, certain zwitterionic viscoelastic fluid systems that can decarboxylate and that require an anion-containing co-surfactant undergo delayed degradation if oxygen is present, for example from fluid preparation or in a foam.

    摘要翻译： 给出组合物和方法用于延迟破裂地层孔隙内的粘弹性表面活性剂凝胶，特别是用于水力压裂。 破碎内部形成孔隙是在没有机械干预或使用第二流体的情况下完成的。 使用氧化剂如空气，氧气，过硫酸盐，溴酸盐，过氧化物等。 可以加速断裂，例如用自由基传播物质或延迟的，例如用氧清除剂。 在某些盐水中，例如溴化物盐水，可以脱羧并且需要含阴离子的辅助表面活性剂的某些两性离子粘弹性流体体系如果存在氧，例如从流体制备或泡沫中经历延迟降解。

    Polymer Delivery In Well Treatment Applications
    12.
    发明申请
    Polymer Delivery In Well Treatment Applications 有权
    聚合物输送在井处理应用中

    公开(公告)号：US20090023615A1

    公开(公告)日：2009-01-22

    申请号：US12166804

    申请日：2008-07-02

    申请人： Yiyan Chen ,  Lijun Lin ,  Philip F. Sullivan

    发明人： Yiyan Chen ,  Lijun Lin ,  Philip F. Sullivan

    IPC分类号： C09K8/60

    CPC分类号： C09K8/035 ,  B01F3/1214 ,  B01F3/2276 ,  B01F15/06 ,  B01F2003/1285 ,  B01F2015/062 ,  B01F2215/0081 ,  C09K8/5756 ,  C09K8/68 ,  C09K8/685 ,  C09K8/70 ,  C09K8/887 ,  C09K8/90

    摘要： This invention relates to compositions and methods for treating subterranean formations, in particular, oilfield stimulation compositions and methods using water-in-water polymer emulsions to uniformly dissolve a rheologically active polymer, such as a thickener or friction reducer, in the treatment fluid. The emulsions have a low viscosity and are easily pumped for mixing into a treatment fluid, where upon dilution with an aqueous medium, the polymer is easily hydrated without forming fish-eyes. The partitioning agent in the water-in-water emulsion does not generally affect the rheology of the treatment fluid. The invention also relates to further processing of the emulsion by wet grinding, high shear mixing and/or heating to enhance the hydration rate in the preparation of the well treatment fluid.

    摘要翻译： 本发明涉及用于处理地下地层的组合物和方法，特别是油田刺激组合物和使用水包水聚合物乳液在处理液中均匀溶解流变学活性聚合物如增稠剂或摩擦减小剂的方法。 乳液具有低粘度并且容易地泵入以混合到处理流体中，其中当用水性介质稀释时，聚合物容易水合而不形成鱼眼。 水包油乳液中的分配剂通常不影响处理液的流变性。 本发明还涉及通过湿法研磨，高剪切混合和/或加热进一步处理乳液，以提高在井处理流体的制备中的水化速率。

    Foaming agent for subterranean formations treatment, and methods of use thereof
    15.
    发明授权
    Foaming agent for subterranean formations treatment, and methods of use thereof 有权
    用于地下地层处理的发泡剂及其使用方法

    公开(公告)号：US08916507B2

    公开(公告)日：2014-12-23

    申请号：US13167808

    申请日：2011-06-24

    申请人： Lijun Lin ,  Carlos Abad ,  Bruno Drochon ,  Gregory Kubala ,  Laura Shafer ,  Alejandro Pena ,  Ramsey Buoy

    发明人： Lijun Lin ,  Carlos Abad ,  Bruno Drochon ,  Gregory Kubala ,  Laura Shafer ,  Alejandro Pena ,  Ramsey Buoy

    IPC分类号： C09K8/60 ,  C09K8/536 ,  C09K8/70 ,  C09K8/74 ,  C09K8/68 ,  C09K8/90 ,  C09K8/94

    CPC分类号： C09K8/536 ,  C09K8/68 ,  C09K8/703 ,  C09K8/74 ,  C09K8/90 ,  C09K8/905 ,  C09K8/94 ,  C09K2208/26

    摘要： A wellbore treatment fluid is formed from an aqueous medium, a gas component, a viscosifying agent, and a surfactant. The surfactant is represented by the chemical formula: [R—(OCH2CH2)m—Oq—YOn]pX wherein R is a linear alkyl, branched alkyl, alkyl cycloaliphatic, or alkyl aryl group; O is an oxygen atom; Y is either a sulfur or phosphorus atom; m is 1 or more; n is a integer ranging from 1 to 3; p is a integer ranging from 1 to 4; q is a integer ranging from 0 to 1; and X is a cation. The fluid may be used in treating a subterranean formation penetrating by a wellbore by introducing the fluid into the wellbore. The fluid may be used in fracturing a subterranean formation penetrated by a wellbore by introducing the fluid into the formation at a pressure equal to or greater than the fracture initiation pressure.

    摘要翻译： 井眼处理流体由水性介质，气体成分，增粘剂和表面活性剂形成。 表面活性剂由化学式表示：[R-（OCH 2 CH 2）m -Oq-YOn] pX其中R是直链烷基，支链烷基，烷基脂环族或烷基芳基; O是氧原子; Y是硫或磷原子; m为1以上; n为1〜3的整数; p是1至4的整数; q是0到1的整数; X是阳离子。 流体可以用于通过将流体引入井眼来处理穿透井眼的地下地层。 该流体可用于通过在等于或大于断裂起始压力的压力下将流体引入地层来压裂井眼穿透的地下岩层。

    Apparatus and method of searching multi-carrier active set pilots
    16.
    发明授权
    Apparatus and method of searching multi-carrier active set pilots 有权
    搜索多载波主动飞行员的装置和方法

    公开(公告)号：US08599749B2

    公开(公告)日：2013-12-03

    申请号：US12544334

    申请日：2009-08-20

    申请人： Gregory R. Lie ,  Lijun Lin ,  Robert K. Chan ,  Manasi D. Gandhi

    发明人： Gregory R. Lie ,  Lijun Lin ,  Robert K. Chan ,  Manasi D. Gandhi

    IPC分类号： H04W4/00 ,  H04B3/10 ,  H04J3/14

    CPC分类号： H04L27/2647 ,  H04J11/0079

    摘要： Apparatus and methods are described herein for detecting pilot signals. An access terminal determines whether each pilot signal in its active set can be tracked. If not, the access terminal adjusts the search window center associated with any untracked pilot to a position that allows tracking. In some aspects, a known search window center of a tracked member of a same pilot group may be used.

    摘要翻译： 这里描述了用于检测导频信号的装置和方法。 接入终端确定其活动组中的每个导频信号是否可被跟踪。 如果不是，则接入终端将与任何未跟踪的导频相关联的搜索窗口中心调整到允许跟踪的位置。 在一些方面，可以使用同一导频组的被跟踪的成员的已知搜索窗口中心。

    Gelled liquid hydrocarbon treatment fluids and their associated methods of use
    17.
    发明授权
    Gelled liquid hydrocarbon treatment fluids and their associated methods of use 失效
    胶化液态烃处理液及其相关使用方法

    公开(公告)号：US08567499B2

    公开(公告)日：2013-10-29

    申请号：US12830512

    申请日：2010-07-06

    申请人： Leiming Li ,  Lijun Lin ,  Syed A. Ali

    发明人： Leiming Li ,  Lijun Lin ,  Syed A. Ali

    IPC分类号： E21B43/22

    CPC分类号： C09K8/32 ,  C09K8/502 ,  C09K8/52 ,  C09K8/64 ,  C09K2208/26 ,  C09K2208/30

    摘要： A method of forming a gelled liquid hydrocarbon treatment fluid is disclosed. The method comprises combining a liquid hydrocarbon, a phosphoric acid ester and a pre-mixed solution comprising water, ferrous ion (Fe2+) and an amine; and forming the gelled liquid hydrocarbon treatment fluid. A method of treating a portion of a subterranean formation is also disclosed and comprises: providing a gelled liquid hydrocarbon treatment fluid, by combining a liquid hydrocarbon, a phosphoric acid ester and a pre-mixed solution comprising water, ferrous ion and an amine, and treating the portion of the subterranean formation with the gelled liquid hydrocarbon treatment fluid.

    摘要翻译： 公开了一种形成胶态液体烃处理流体的方法。 该方法包括液体烃，磷酸酯和包含水，亚铁离子（Fe 2+）和胺的预混合溶液; 并形成凝胶状液体烃处理流体。 还公开了一种处理地下地层的一部分的方法，其包括：通过组合液体烃，磷酸酯和包含水，亚铁离子和胺的预混合溶液来提供凝胶液态烃处理流体，以及 用胶凝的液体烃处理流体处理地层的一部分。

    Acidic viscosity enhancer for viscoelastic surfactant fluids
    19.
    发明授权
    Acidic viscosity enhancer for viscoelastic surfactant fluids 有权
    用于粘弹性表面活性剂流体的酸性粘度增强剂

    公开(公告)号：US08247355B2

    公开(公告)日：2012-08-21

    申请号：US12491459

    申请日：2009-06-25

    申请人： Leiming Li ,  Lijun Lin ,  Mathew M. Samuel ,  Syed Ali ,  Paul R. Howard

    发明人： Leiming Li ,  Lijun Lin ,  Mathew M. Samuel ,  Syed Ali ,  Paul R. Howard

    IPC分类号： C09K8/62 ,  C09K8/68 ,  C09K8/74

    CPC分类号： C09K8/602 ,  C09K8/68 ,  C09K8/703 ,  C09K8/72 ,  C09K2208/30

    摘要： The invention discloses method of treating a subterranean formation of a well bore, the method comprising: providing a treatment fluid comprising: an aqueous base fluid; a viscosity enhancer; and a viscoelastic surfactant, wherein the enhancer is acid in the aqueous base fluid and co-operates with the viscoelastic surfactant to enhance viscosity compared to viscoelastic surfactant alone in the aqueous base fluid; and introducing the treatment fluid into the well bore.

    摘要翻译： 本发明公开了一种处理井眼地下地层的方法，所述方法包括：提供一种处理流体，包括：基础水溶液; 粘度增强剂; 粘弹性表面活性剂，其中增强剂在碱性水基液中为酸，并与粘弹性表面活性剂配合，以提高粘度，与单独的含水基体液中的粘弹性表面活性剂相比较; 并将处理流体引入井眼。