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28 条记录 (耗时 0.022 秒)

    System and method for creating packers in a wellbore
    1.
    发明授权
    System and method for creating packers in a wellbore 有权
    在井筒中创建包装机的系统和方法

    公开(公告)号：US07461695B2

    公开(公告)日：2008-12-09

    申请号：US11216230

    申请日：2005-08-31

    申请人： Curtis L. Boney ,  Lawrence J. Leising

    发明人： Curtis L. Boney ,  Lawrence J. Leising

    IPC分类号： E21B43/04

    CPC分类号： E21B33/12

    摘要： A system and method is provided for creating a packer in a wellbore for utilization in a variety of wellbore applications. The packer is created by flowing a slurry of particular matter and liquid to a desired location. At the desired location, the slurry is dehydrated, leaving deposition of the particulate matter to create a packer.

    摘要翻译： 提供了一种用于在井眼中创建封隔器以在各种井眼应用中利用的系统和方法。 封隔器通过将特定物质和液体的浆液流动到期望的位置而产生。 在所需的位置，浆液脱水，留下颗粒物沉积以形成封隔器。

    Downhole application for a backpressure valve
    2.
    发明授权
    Downhole application for a backpressure valve 有权
    用于背压阀的井下应用

    公开(公告)号：US07857067B2

    公开(公告)日：2010-12-28

    申请号：US12253474

    申请日：2008-10-17

    申请人： Gokturk Tunc ,  Zheng Rong Xu ,  Patrick Schorn ,  Lawrence J. Leising

    发明人： Gokturk Tunc ,  Zheng Rong Xu ,  Patrick Schorn ,  Lawrence J. Leising

    IPC分类号： E21B21/10

    CPC分类号： E21B17/20 ,  E21B21/08 ,  E21B41/0035 ,  E21B47/18

    摘要： A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in bottom hole assembly while simultaneously being compatible with a pressure pulse tool downhole thereof. The backpressure valve includes pressure generating capacity below its internal valve assembly so as to avoid the tendency of the assembly to throttle open and closed. Furthermore, the pressure generation is achieved in a manner avoiding cavitation. As a result, once the backpressure valve is opened, the pressure pulse tool is able to reliably communicate with surface equipment at the oilfield.

    摘要翻译： 背压阀。 背压阀可以被配置为在底孔组件中保持基本受控的压力，同时与其井下的压力脉冲工具兼容。 背压阀包括在其内部阀组件下方的压力发生能力，以避免组件节流打开和关闭的趋势。 此外，以避免空化的方式实现压力产生。 结果，一旦背压阀打开，压力脉冲工具能够可靠地与油田的表面设备连通。

    Drilling connector
    4.
    发明授权
    Drilling connector 失效
    钻孔接头

    公开(公告)号：US5417291A

    公开(公告)日：1995-05-23

    申请号：US62645

    申请日：1993-05-14

    申请人： Lawrence J. Leising

    发明人： Lawrence J. Leising

    IPC分类号： E21B17/046 ,  E21B17/06 ,  E21B34/14

    CPC分类号： E21B34/14 ,  E21B17/046 ,  E21B17/06

    摘要： A tubular connector for connecting a drilling tool assembly to a drill string for use in CTD operations. The connector has a fluid flow passage therethrough, and comprises: a first part connected to the drill string and a second part connected to the drilling tool assembly; inter engaging formations such as splines provided on the first and second parts such that, when engaged, the formations do not prevent relative axial movement of the first and second parts but prevent relative rotation thereof; a threaded collar provided around adjacent end portions of the first and second parts for axial location thereof when connected. The connector can also include a non-return valve assembly located in the fluid flow passage; a pressure actuated piston device in the fluid flow passage for disconnecting the drilling tool assembly from the chill string; and a pressure actuated valve which, when operated, allows fluid communication between the fluid flow passage and an exterior region of the connector.

    摘要翻译： 一种用于将钻具组件连接到用于CTD操作的钻柱的管状连接器。 连接器具有通过其的流体流动通道，并且包括：连接到钻柱的第一部分和连接到钻具组件的第二部分; 相互接合的结构，例如设置在第一和第二部分上的花键，使得当接合时，结构不阻止第一和第二部分的相对轴向运动，而是防止其相对旋转; 当连接时，设置在第一和第二部分的相邻端部周围的螺纹轴环用于其轴向位置。 连接器还可以包括位于流体流动通道中的止回阀组件; 流体流动通道中的压力致动的活塞装置，用于将钻井工具组件与冷却柱分离; 以及压力致动阀，其在操作时允许流体流动通道和连接器的外部区域之间的流体连通。

    Selective direct and reverse circulation check valve mechanism for coiled tubing
    8.
    发明授权
    Selective direct and reverse circulation check valve mechanism for coiled tubing 有权
    用于连续油管的选择性直接和反向循环止回阀机构

    公开(公告)号：US06889771B1

    公开(公告)日：2005-05-10

    申请号：US10254134

    申请日：2002-09-25

    申请人： Lawrence J. Leising ,  Robert M. Ramsey ,  Howard L. McGill ,  Peter V. Smith

    发明人： Lawrence J. Leising ,  Robert M. Ramsey ,  Howard L. McGill ,  Peter V. Smith

    IPC分类号： E21B23/00 ,  E21B34/00 ,  E21B34/10 ,  E21B34/12 ,  E21B34/06

    CPC分类号： E21B23/006 ,  E21B34/10 ,  E21B34/103 ,  E21B34/12 ,  E21B2034/005

    摘要： A method and apparatus for selectively actuating a dual check valve assembly within a well for a direct circulating operational mode or a reverse circulating operational mode. A tubular housing which may be connected to well tubing is provided with a check valve assembly and may be provided with a rotatable J-slot mode indexing sleeve having an internal J-slot geometry. An inner tubular member which also may be connected to well tubing is linearly movable within the tubular housing to a valve open position, an indexing position and a valve enabled position being controlled by the J-slot geometry of the J-slot indexing sleeve or being controlled by moving the inner tubular element and resisting movement of the tubular housing. Relative positioning of the inner tubular member and the tubular housing to selective valve mode positions may also be achieved responsive to fluid flow, by mechanical compression, or by motion operation.

    摘要翻译： 一种用于在直接循环操作模式或反向循环操作模式中选择性地致动井内的双止回阀组件的方法和装置。 可以连接到井管的管状壳体设置有止回阀组件，并且可以设置有具有内部J形槽几何形状的可旋转的J型槽模式分度套筒。 还可以连接到井管的内部管状构件可在管状壳体内线性移动到阀打开位置，分度位置和阀启用位置由J形槽索引套管的J形槽几何形状控制，或者 通过移动内部管状元件并抵抗管状壳体的运动来控制。 内部管状构件和管状壳体相对于选择性阀模式位置的定位也可以通过机械压缩或通过运动操作来实现。