利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

39 条记录 (耗时 0.028 秒)

    Packer
    3.
    发明授权
    Packer 有权
    封隔器

    公开(公告)号：US06564876B2

    公开(公告)日：2003-05-20

    申请号：US09745973

    申请日：2001-02-09

    申请人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhaven ,  Mitchell G. Willcox ,  Dinesh R. Patel

    发明人： Vladimir Vaynshteyn ,  James D. Hendrickson ,  Jim B. Benton ,  Raghu Madhaven ,  Mitchell G. Willcox ,  Dinesh R. Patel

    IPC分类号： E21B2304

    CPC分类号： E21B43/116 ,  E21B33/126 ,  E21B33/1295 ,  E21B34/063

    摘要： A packer for use inside a casing of a subterranean well includes a resilient element, a housing and a rupture disc. The resilient element is adapted to seal off an annulus of the well when compressed, and the housing is adapted to compress the resilient element in response to a pressure exerted by fluid of the annulus of a piston head of the housing. The housing includes a port for establishing fluid communication with the annulus. The rupture disc is adapted to prevent the fluid in the annulus from entering the port and contacting the piston head until the pressure exerted by the fluid exceeds a predefined threshold and ruptures the rupture disc.

    摘要翻译： 用于在地下井的壳体内使用的封隔器包括弹性元件，壳体和破裂盘。 弹性元件适于在压缩时密封井的环空，并且壳体适于响应于由壳体的活塞头的环的流体施加的压力而压缩弹性元件。 壳体包括用于与环形部件建立流体连通的端口。 破裂盘适于防止环空中的流体进入端口并接触活塞头，直到由流体施加的压力超过预定阈值并破裂破裂盘。

    Reservoir communication with a wellbore
    4.
    发明授权
    Reservoir communication with a wellbore 有权

    公开(公告)号：US06598682B2

    公开(公告)日：2003-07-29

    申请号：US09797209

    申请日：2001-03-01

    申请人： Ashley B. Johnson ,  James E. Brooks ,  Lawrence A. Behrmann ,  Adinathan Venkitaraman ,  Ian Walton ,  Anthony P. Vovers ,  Vladimir Vaynshteyn ,  Dinesh R. Patel ,  Michael W. Fruge

    发明人： Ashley B. Johnson ,  James E. Brooks ,  Lawrence A. Behrmann ,  Adinathan Venkitaraman ,  Ian Walton ,  Anthony P. Vovers ,  Vladimir Vaynshteyn ,  Dinesh R. Patel ,  Michael W. Fruge

    IPC分类号： E21B2900

    CPC分类号： E21B43/04 ,  E21B21/00 ,  E21B37/08 ,  E21B43/1195 ,  E21B43/26 ,  E21B49/08 ,  E21B2021/006 ,  E21B2034/002

    摘要： A method and apparatus for improving reservoir communication includes, in one arrangement, use of one or more chambers to create an underbalance condition and/or a fluid surge in the wellbore. In another arrangement, a tool string comprises a packer, a circulating valve, and an atmospheric chamber, in which the circulating valve, when open, is adapted to vent a lower wellbore region below the packer when the packer is set, and the atmospheric chamber is capable of being operated to create an underbalance condition below the packer. In yet another arrangement, an apparatus comprises a subsea wellhead equipment including a blow-out preventer, choke line filled with a low density fluid, and a kill line filled with a heavy fluid. The choke line is adapted to be opened to create an underbalance condition in the wellbore. In yet another arrangement, a method of creating an underbalance condition comprises controlling wellbore pressure at least in a perforating interval to achieve a target level, configuring a perforating gun to achieve a target detonation pressure in the perforating gun upon detonation, and creating an underbalance condition in the perforating interval of the wellbore when the perforating gun is shot. In yet another arrangement, a tool string for use in a wellbore extending from a well surface comprises a closure member adapted to be positioned below the well surface, and a chamber defined at least in part by the closure member. The tool string further comprises at least a port selectively openable to enable communication between the chamber and a wellbore region. The port when open creates a fluid surging to the chamber to provide a low pressure condition in the wellbore region. A tool in the tool string is adapted to perform an operation in the low pressure condition.

    Safety method and apparatus for a perforating gun
    7.
    发明授权
    Safety method and apparatus for a perforating gun 有权
    穿孔枪的安全方法和装置

    公开(公告)号：US06298924B1

    公开(公告)日：2001-10-09

    申请号：US09641828

    申请日：2000-08-18

    申请人： Vladimir Vaynshteyn ,  Christian C. Spring

    发明人： Vladimir Vaynshteyn ,  Christian C. Spring

    IPC分类号： E21B43117

    CPC分类号： F42D1/055 ,  E21B43/11857

    摘要： An apparatus for use in a subterranean well includes a downhole energy source, a first switch, a second switch, a detonator, a first controller and a second controller. The first switch has a first predetermined state to transfer energy from the energy source, and the second switch has a second predetermined state to transfer the energy from the energy source. A detonator receives the energy from the energy source when the first switch and second switches are concurrently in the first and second predetermined states. A first controller independently detects a predetermined stimulus that is transmitted from the surface of the well and causes the first switch to enter to first predetermined state based on the detection by the first controller. A second controller independently detects the predetermined stimulus transmitted from the surface of the well and causes the second switch to enter the second predetermined state based on the detection by the second controller.

    摘要翻译： 一种用于地下井的装置包括井下能量源，第一开关，第二开关，雷管，第一控制器和第二控制器。 第一开关具有从能量源传递能量的第一预定状态，并且第二开关具有第二预定状态以从能量源传递能量。 当第一开关和第二开关同时处于第一和第二预定状态时，雷管从能量源接收能量。 第一控制器独立地检测从井的表面发送的预定的刺激，并且基于第一控制器的检测使第一开关进入第一预定状态。 第二控制器独立地检测从井的表面发送的预定刺激，并且基于第二控制器的检测使第二开关进入第二预定状态。

    METHODS FOR DETERMINING FORMATION STRENGTH OF A WELLBORE
    8.
    发明申请
    METHODS FOR DETERMINING FORMATION STRENGTH OF A WELLBORE 有权
    确定井筒形成强度的方法

    公开(公告)号：US20130186688A1

    公开(公告)日：2013-07-25

    申请号：US13554649

    申请日：2012-07-20

    申请人： John C. Rasmus ,  Vladimir Vaynshteyn ,  Roberto Suarez-Rivera

    发明人： John C. Rasmus ,  Vladimir Vaynshteyn ,  Roberto Suarez-Rivera

    IPC分类号： E21B47/06

    CPC分类号： E21B47/06 ,  E21B21/08 ,  E21B43/26

    摘要： A system and a method may determine formation strength of a well. The system and the method may use pressure measurements and temperature measurements to determine controlled fracture pressures before the uncontrolled fracture pressure is reached. The system and the method may use pressure measurements and temperature measurements to determine closure stresses while drilling and may use the closure stresses with core and log measurements to optimize a hydraulic stimulation program.

    摘要翻译： 系统和方法可以确定井的地层强度。 该系统和方法可以使用压力测量和温度测量来确定在达到不受控的断裂压力之前的受控断裂压力。 系统和方法可以使用压力测量和温度测量来确定钻井时的闭合应力，并且可以使用具有岩心和对数测量的闭合应力来优化液压刺激程序。

    PERFORATING WITH WIRED DRILL PIPE
    9.
    发明申请
    PERFORATING WITH WIRED DRILL PIPE 有权
    用有线钻孔管执行

    公开(公告)号：US20100230105A1

    公开(公告)日：2010-09-16

    申请号：US12724187

    申请日：2010-03-15

    申请人： Vladimir Vaynshteyn

    发明人： Vladimir Vaynshteyn

    IPC分类号： E21B43/116 ,  E21B43/11

    CPC分类号： E21B43/11857 ,  E21B47/04

    摘要： Embodiments of the invention include methods and systems for perforating a well using a wired work string assembly. According to embodiments of the invention, the method includes positioning a wired work string assembly in a wellbore, the work string assembly comprising a plurality of wired pipe communicatively coupled at each joint, a depth correlation tool, and a perforating gun assembly. A depth of the perforating gun assembly is determined from a depth correlation tool positioned within the wellbore, and an electrical signal related to the depth of the perforating gun assembly is transmitted to a surface above the wellbore. Firing of the perforating gun assembly is initiated via a signal transmitted from the surface above the wellbore. An electrical signal from the wellbore is transmitted to the surface to confirming the firing of perforating gun assembly. The system includes various tools for perforating the well using the disclosed methods.

    摘要翻译： 本发明的实施例包括使用有线工作串组件对井进行穿孔的方法和系统。 根据本发明的实施例，该方法包括将有线工作串组件定位在井眼中，工作串组件包括在每个关节处通信地连接的多个有线管，深度相关工具和穿孔枪组件。 穿孔枪组件的深度由位于井眼内的深度相关工具确定，并且与射孔枪组件的深度相关的电信号被传送到井眼上方的表面。 通过从井筒上方的表面传输的信号启动射孔枪组件的射击。 来自井筒的电信号被传递到表面以确认射孔枪组件的点火。 该系统包括用于使用所公开的方法穿孔的各种工具。