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    Far field diversion technique for treating subterranean formation
    6.
    发明授权
    Far field diversion technique for treating subterranean formation 有权
    用于处理地下地层的远场转移技术

    公开(公告)号：US08905136B2

    公开(公告)日：2014-12-09

    申请号：US12813959

    申请日：2010-06-11

    申请人： Bradley L. Todd ,  Stanley J. Heath ,  Jeff T. Fleming

    发明人： Bradley L. Todd ,  Stanley J. Heath ,  Jeff T. Fleming

    IPC分类号： E21B43/26 ,  C09K8/504 ,  C09K8/82 ,  C09K8/506 ,  C09K8/502 ,  C09K8/84

    CPC分类号： C09K8/68 ,  C09K8/502 ,  C09K8/5045 ,  C09K8/506 ,  C09K8/725 ,  C09K8/82 ,  C09K8/845

    摘要： An aqueous-swellable and degradable diverting system and the use of the system in treating a subterranean formation penetrated by a wellbore. The diverting system includes a carrier fluid and a partially dehydrated or anhydrous borate source material that does not swell or does not swell substantially when placed in contact with the carrier fluid. The carrier fluid is capable of carrying and placing the borate source material into a stimulation network substantially distanced from a wellbore. Exposure of the diverting composition to a sufficient amount of aqueous fluid swells the borate source material, bridges a desired portion of the stimulation network, and then dissolves at least a portion of the diverting composition. The diverting techniques allow for treatment in a subterranean formation to be diverted to a previously untreated portion of the formation, in particular a portion of the formation that is significantly distanced from the wellbore.

    摘要翻译： 水溶胀性和可降解的转移系统以及该系统用于处理井眼渗透的地下地层的用途。 转向系统包括载体流体和部分脱水或无水的硼酸盐源材料，当与载体流体接触时不会膨胀或不膨胀。 载体流体能够将硼酸盐源材料携带并放置在基本上远离井眼的刺激网络中。 将转移组合物暴露于足够量的水溶液中使硼酸盐源材料膨胀，桥接刺激网络的期望部分，然后溶解转移组合物的至少一部分。 转移技术允许在地下地层中的处理被转移到地层的先前未处理的部分，特别是地层中远离井眼的部分地层。

    Methods of providing fluid loss control or diversion
    7.
    发明授权
    Methods of providing fluid loss control or diversion 有权
    提供流体损失控制或转移的方法

    公开(公告)号：US08657003B2

    公开(公告)日：2014-02-25

    申请号：US12957522

    申请日：2010-12-01

    申请人： Thomas D. Welton ,  Bradley L. Todd

    发明人： Thomas D. Welton ,  Bradley L. Todd

    IPC分类号： E21B33/13

    CPC分类号： C09K8/80 ,  C09K8/032 ,  C09K8/426 ,  C09K8/5045 ,  C09K8/72

    摘要： Methods of controlling fluid loss, providing fluid diversion, or plugging a portion of a well bore using a treatment fluid including relatively insoluble borate material particulates that are placed into a subterranean formation to provide the desired action and then degrade over time in the subterranean formation in the presence of an aqueous fluid such as water.

    摘要翻译： 使用包括相对不溶的硼酸盐物质颗粒的处理流体来控制流体损失，提供流体分流或堵塞井眼的一部分的方法，所述处理流体放置在地下地层中以提供期望的作用，然后随着时间的推移在地下地层中降解 含水流体如水的存在。

    On-the fly coating of acid-releasing degradable material onto a particulate
    8.
    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

    申请人： Rajesh K. Saini ,  Bradley L. Todd

    发明人： Rajesh K. Saini ,  Bradley L. Todd

    IPC分类号： B05D7/00 ,  E21B43/16

    CPC分类号： C09K8/536 ,  C09K8/706 ,  C09K8/72 ,  C09K8/805 ,  E21B43/04

    摘要： 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.

    摘要翻译： 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
    9.
    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

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

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

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

    CPC分类号： E21B43/08 ,  C09D5/008

    摘要： 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.

    摘要翻译： 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。

    Method of forming self-diverting high-rate water packs
    10.
    发明授权
    Method of forming self-diverting high-rate water packs 有权
    形成自转高速水袋的方法

    公开(公告)号：US08167042B2

    公开(公告)日：2012-05-01

    申请号：US12620842

    申请日：2009-11-18

    申请人： Bradley L. Todd

    发明人： Bradley L. Todd

    IPC分类号： E21B43/04 ,  E21B43/25 ,  E21B43/267

    CPC分类号： C09K8/805 ,  C09K8/56 ,  C09K8/68 ,  E21B43/04 ,  Y10S507/924 ,  Y10S507/925

    摘要： Methods of forming gravel packs while reducing fluid loss to the surrounding subterranean formation. The methods involve suspending gravel that has been coated with a tackifying agent and degradable fines into a low viscosity carrier fluid and then placing that suspension into a subterranean formation so as to form a gravel pack wherein, as the gravel pack is placed, the degradable fines to de-adhere from the gravel and to fill at least a portion of the pore spaces within the gravel pack so as to reducing fluid loss through the gravel pack.

    摘要翻译： 在减少对周围地层的流体损失的同时形成砾石充填物的方法。 所述方法包括将已经涂覆有增粘剂和可降解细粉的砾石悬浮在低粘度载体流体中，然后将该悬浮液置于地层中，以形成砾石填充物，其中作为砾石填充物放置可降解细粉 从砂砾中去除并填充砾石包装内的至少一部分孔隙空间，以减少通过砾石包装的流体损失。