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    Methods of placing treatment chemicals
    32.
    发明授权
    Methods of placing treatment chemicals 有权
    处理化学品的处理方法

    公开(公告)号：US07216705B2

    公开(公告)日：2007-05-15

    申请号：US11062943

    申请日：2005-02-22

    Applicant: Rajesh K. Saini ,  Bradley L. Todd

    Inventor： Rajesh K. Saini ,  Bradley L. Todd

    IPC: E21B43/27 ,  E21B43/267 ,  E21B43/02

    CPC classification number: C09K8/805 ,  C09K8/68 ,  C09K8/685 ,  C09K2208/26

    Abstract: Among the methods provided are methods of treating a subterranean formation comprising placing a solid treatment chemical and a tacky polymer onto a solid substrate to create a coated solid substrate; placing the coated solid substrate into a portion of a subterranean formation; and, allowing the tacky polymer to degrade and allowing the solid treatment chemical to be released into the portion of the subterranean formation. Also provided are methods of creating a particulate pack comprising a treatment chemical in a subterranean formation comprising placing a solid treatment chemical and a tacky polymer onto a particulate to create a coated particulate; creating a slurry comprising the coated particulates slurried into a treatment fluid; placing the slurry into a portion of a subterranean formation so as to create a particulate pack; and, allowing the tacky polymer to degrade and allowing the solid treatment chemical to be released into the portion of the subterranean formation.

    Abstract translation: 所提供的方法之一是处理地层的方法，包括将固体处理化学品和粘性聚合物置于固体基质上以产生涂覆的固体基质; 将涂覆的固体基质置于地层的一部分中; 并且允许粘性聚合物降解并使得固体处理化学品被释放到地层的部分中。 还提供了在地下地层中产生包含处理化学物质的颗粒包装的方法，包括将固体处理化学品和粘性聚合物置于颗粒上以产生涂覆颗粒; 产生一种浆料，其包含浆料化成处理流体的被覆微粒; 将浆料放置在地层的一部分中以产生颗粒状包装; 并且允许粘性聚合物降解并使得固体处理化学品被释放到地层的部分中。

    One-time use composite tool formed of fibers and a biodegradable resin
    33.
    发明授权
    One-time use composite tool formed of fibers and a biodegradable resin 有权
    一次性复合工具由纤维和可生物降解的树脂形成

    公开(公告)号：US07093664B2

    公开(公告)日：2006-08-22

    申请号：US10803668

    申请日：2004-03-18

    Applicant: Bradley L. Todd ,  Rajesh K. Saini ,  Loren C. Swor ,  Phillip M. Starr

    Inventor： Bradley L. Todd ,  Rajesh K. Saini ,  Loren C. Swor ,  Phillip M. Starr

    IPC: E21B29/00

    CPC classification number: E21B33/12 ,  E21B23/00

    Abstract: The present invention is directed to disposable composite downhole tool formed of a resin-coated fiber. The fiber is formed of a degradable polymer, such as a poly(lactide) or polyanhydride. The resin is formed of the same degradable polymer as the fiber. It chemically bonds to the fiber, thereby making a strong rigid structure once cured. The fiber may be formed into a fabric before being coated with the resin. Alternatively, the fiber is formed of a non-biodegradable material.

    Abstract translation: 本发明涉及由树脂涂覆纤维形成的一次性复合井下工具。 纤维由可降解聚合物如聚（丙交酯）或聚酐形成。 树脂由与纤维相同的可降解聚合物形成。 它与纤维化学键合，从而在固化后形成坚固的刚性结构。 纤维可以在涂覆树脂之前形成织物。 或者，纤维由不可生物降解的材料形成。

    Water-soluble degradable synthetic vinyl polymers and related methods
    34.
    发明授权
    Water-soluble degradable synthetic vinyl polymers and related methods 有权
    水溶性降解合成乙烯基聚合物及相关方法

    公开(公告)号：US09334338B2

    公开(公告)日：2016-05-10

    申请号：US12771961

    申请日：2010-04-30

    Applicant: Alexander Bismarck ,  Emilia M. Kot ,  Rajesh K. Saini

    Inventor： Alexander Bismarck ,  Emilia M. Kot ,  Rajesh K. Saini

    IPC: C08F4/40 ,  C08F2/22 ,  C08F4/04 ,  C08F293/00 ,  C08F4/06

    CPC classification number: C08F4/40 ,  C08F2/22 ,  C08F4/04 ,  C08F4/06 ,  C08F293/00

    Abstract: Of the many embodiments presented herein, one is a subterranean treatment fluid comprising: an aqueous fluid; and a water-soluble degradable synthetic vinyl polymer having a labile link in its backbone. Also provided in one instance is a water-soluble degradable synthetic vinyl polymer with labile group in its backbone made by a redox polymerization, the redox polymerization reaction comprising these reactants: a macroinitiator that comprises a labile link, an oxidizing metal ion, and a vinyl monomer.

    Abstract translation: 在本文提出的许多实施方案中，一种是地下处理流体，包括：含水流体; 和其主链具有不稳定连接的水溶性可降解合成乙烯基聚合物。 在一种情况下还提供了在其主链中通过氧化还原聚合制备的具有不稳定基团的水溶性可降解合成乙烯基聚合物，所述氧化还原聚合反应包括这些反应物：包含不稳定连接的大分子引发剂，氧化金属离子和乙烯基 单体。

    Nanohybrid-stabilized emulsions and methods of use in oil field applications
    36.
    发明授权
    Nanohybrid-stabilized emulsions and methods of use in oil field applications 有权
    纳米杂化稳定乳液和油田应用中的使用方法

    公开(公告)号：US08739876B2

    公开(公告)日：2014-06-03

    申请号：US13005861

    申请日：2011-01-13

    Applicant: Rajesh K. Saini ,  Lewis R. Norman

    Inventor： Rajesh K. Saini ,  Lewis R. Norman

    IPC: E21B43/16

    CPC classification number: C09K8/36 ,  B82Y30/00 ,  C04B40/0633 ,  C09K8/265 ,  C09K8/467 ,  C09K8/62 ,  C09K8/74 ,  C09K2208/14 ,  C04B28/02 ,  C04B2103/10

    Abstract: Methods of using nanohybrid-stabilized emulsions in a well are provided that include the steps of: (a) forming an emulsion comprising: (i) a nanohybrid; (ii) water or an aqueous solution; and (iii) a water-immiscible liquid; (b) introducing a well fluid comprising the emulsion into a well; and (c) after the step of introducing, modifying the nanohybrid to break the emulsion in the well. The methods can be used in various applications, such as in drilling, completion, or intervention operations.

    Abstract translation: 提供了在井中使用纳米混合物稳定的乳液的方法，其包括以下步骤：（a）形成乳液，其包含：（i）纳米混合物; （ii）水或水溶液; 和（iii）与水不混溶的液体; （b）将包含乳液的井液引入井中; 和（c）在引入步骤之后，改变纳米混合物以破坏孔中的乳液。 这些方法可用于各种应用中，例如在钻井，完井或干预操作中。

    On-the fly coating of acid-releasing degradable material onto a particulate
    37.
    发明授权
    On-the fly coating of acid-releasing degradable material onto a particulate 有权
    将释放酸的可降解材料的飞沫涂层在颗粒上

    公开(公告)号：US08541051B2

    公开(公告)日：2013-09-24

    申请号：US10736339

    申请日：2003-12-15

    Applicant: Rajesh K. Saini ,  Bradley L. Todd

    Inventor： Rajesh K. Saini ,  Bradley L. Todd

    IPC: B05D7/00 ,  E21B43/16

    CPC classification number: C09K8/536 ,  C09K8/706 ,  C09K8/72 ,  C09K8/805 ,  E21B43/04

    Abstract: The present invention relates to methods and compositions for treating subterranean formations, and more specifically, to improved methods and compositions for degrading filter cake deposited on a subterranean formation. One embodiment of the present invention provides a method of creating particulates coated with acid-releasing degradable material on-the-fly comprising the step of: combining an acid-releasing degradable material with a solvent or a plasticizer to create a coating solution; and, coating the coating solution onto a particulate on-the-fly to create coated particulates. Another embodiment of the present invention provides a gravel pack comprising gravel particles coated on-the-fly with an acid-releasing degradable material.

    Abstract translation: 本发明涉及用于处理地下地层的方法和组合物，更具体地说，涉及降解沉积在地层上的滤饼的改进方法和组合物。 本发明的一个实施方案提供了一种在真空下产生涂有释放酸的可降解材料的颗粒的方法，包括以下步骤：将释放酸的可降解材料与溶剂或增塑剂组合以产生涂布溶液; 并将该涂层溶液涂覆在颗粒上以形成涂覆的微粒。 本发明的另一个实施方案提供了一种砾石充填包，其中包含用脱酸剂降解材料在飞行中涂覆的砾石颗粒。

    Methods for Improving Coatings on Downhole Tools
    38.
    发明申请
    Methods for Improving Coatings on Downhole Tools 审中-公开
    改善井下工具涂料的方法

    公开(公告)号：US20130081801A1

    公开(公告)日：2013-04-04

    申请号：US13252403

    申请日：2011-10-04

    Applicant: Feng Liang ,  Bradley L. Todd ,  Thomas D. Welton ,  Rajesh K. Saini

    Inventor： Feng Liang ,  Bradley L. Todd ,  Thomas D. Welton ,  Rajesh K. Saini

    IPC: E21B33/12 ,  E21B43/00 ,  E21B34/06 ,  E21B17/00 ,  B05D3/10 ,  E21B43/08

    CPC classification number: E21B43/08 ,  C09D5/008

    Abstract: The present invention relates to the use of degradable coatings suitable for use on downhole tools. In particular, the present invention relates to pliable coatings for use on downhole tools that have been designed to be able to resist flaking or breaking off of the tool in response to a physical shock. Some embodiments of the present invention provide methods of reacting lactic acid, glycolic acid, or a combination thereof in a polymerization reaction to form a degradable polymer; combining the degradable polymer and a plasticizer to form a coating composition; applying the coating composition to a downhole tool; placing the coated downhole tool into a portion of a subterranean formation; and, hydrolyzing the degradable polymer of the coating composition to release an acid and degrade the coating.

    Abstract translation: 本发明涉及适用于井下工具的可降解涂料的应用。 特别地，本发明涉及用于井下工具的柔性涂层，其被设计成能够抵抗物理冲击而抵抗工具的剥落或破裂。 本发明的一些实施方案提供了在聚合反应中使乳酸，乙醇酸或其组合反应形成可降解聚合物的方法; 组合可降解聚合物和增塑剂以形成涂料组合物; 将涂料组合物施加到井下工具; 将涂覆的井下工具放置在地层的一部分中; 并且水解涂料组合物的可降解聚合物以释放酸并降解涂层。

    COMPOSITIONS AND METHODS FOR BREAKING A VISCOSITY INCREASING POLYMER AT VERY LOW TEMPERATURE USED IN DOWNHOLE WELL APPLICATIONS
    40.
    发明申请
    COMPOSITIONS AND METHODS FOR BREAKING A VISCOSITY INCREASING POLYMER AT VERY LOW TEMPERATURE USED IN DOWNHOLE WELL APPLICATIONS 审中-公开

    公开(公告)号：US20110152133A1

    公开(公告)日：2011-06-23

    申请号：US13039887

    申请日：2011-03-03

    Applicant: Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    Inventor： Michael W. Sanders ,  Jeffrey L. Mundy ,  Fong Fong Foo ,  Rajesh K. Saini

    IPC: C09K8/00

    CPC classification number: C09K8/524 ,  C09K8/68 ,  C09K2208/26

    Abstract: A composition for treating a portion of a wellbore or a portion of a subterranean formation is provided, the composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted to be within an appropriate range for the type of activator. A method for treating a portion of a wellbore or a portion of a subterranean formation, the method comprising the steps of: forming or providing a composition comprising: (a) water; (b) a source of hydrogen peroxide, and (c) an activator for the source of hydrogen peroxide; wherein the pH of the composition is adjusted within an appropriate range for the type of activator; and introducing the composition through a wellbore to treat a portion of a wellbore or a portion of a subterranean formation. The activator can be a water-soluble alkanoyl-donor compound or a chelated transition metal. Preferably, the composition further comprises an iron chelating agent. The composition and method are adapted for breaking a viscosity increasing polymer, such as xanthan. The method has particular applications where the static temperature of the portion of the wellbore or the portion of the subterranean formation to be treated is less than 100° F. (38° C.).

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