Mechanism for activating a plurality of downhole devices
    1.
    发明授权
    Mechanism for activating a plurality of downhole devices 有权
    用于激活多个井下装置的机构

    公开(公告)号:US08297367B2

    公开(公告)日:2012-10-30

    申请号:US12784612

    申请日:2010-05-21

    IPC分类号: E21B34/06

    摘要: A mechanism for selectively activating a plurality of downhole pathways including a) a valve having: i) a sleeve coupled for movement between an open and normally closed position; and ii) a valve magnet set mounted to the sleeve; and b) a dart for pumping in hole including a dart magnet set matched to the valve magnet set such that the dart couples to the valve when in close proximity and, in turn, the sleeve moves from the closed position to the open position.

    摘要翻译: 一种用于选择性地激活多个井下路径的机构,包括:a)阀,其具有:i)套筒,其耦合以在打开和常闭位置之间移动; 和ii)安装到所述套筒上的阀磁体; 以及b)用于泵入孔的飞镖,包括与阀磁体组合匹配的飞镖磁体,使得当紧密接近时,飞镖耦合到阀,并且套筒又从关闭位置移动到打开位置。

    MECHANISM FOR ACTIVATING A PLURALITY OF DOWNHOLE DEVICES
    2.
    发明申请
    MECHANISM FOR ACTIVATING A PLURALITY OF DOWNHOLE DEVICES 有权
    用于激活大量倒塌装置的机制

    公开(公告)号:US20110284240A1

    公开(公告)日:2011-11-24

    申请号:US12784612

    申请日:2010-05-21

    IPC分类号: E21B34/06 E21B34/00 E21B31/06

    摘要: A mechanism for selectively activating a plurality of downhole pathways including a) a valve having: i) a sleeve coupled for movement between an open and normally closed position; and ii) a valve magnet set mounted to the sleeve; and b) a dart for pumping in hole including a dart magnet set matched to the valve magnet set such that the dart couples to the valve when in close proximity and, in turn, the sleeve moves from the closed position to the open position.

    摘要翻译: 一种用于选择性地激活多个井下路径的机构,包括:a)阀,其具有:i)套筒,其耦合以在打开和常闭位置之间移动; 和ii)安装到所述套筒上的阀磁体; 以及b)用于泵入孔的飞镖,包括与阀磁体组合匹配的飞镖磁体,使得当紧密接近时,飞镖耦合到阀,并且套筒又从关闭位置移动到打开位置。

    Reducing axial wave reflections and identifying sticking in wireline cables
    3.
    发明授权
    Reducing axial wave reflections and identifying sticking in wireline cables 有权
    减少轴向波反射并识别有线电缆中的粘附

    公开(公告)号:US09133676B2

    公开(公告)日:2015-09-15

    申请号:US13338068

    申请日:2011-12-27

    IPC分类号: E21B23/14 E21B47/00 E21B19/08

    摘要: Techniques for axial vibration control of wireline tools and cables during logging operations. In undesirable cases the axial vibrations may lead to or exasperate the stick-slip problems of the logging tool. Control systems and strategies to minimize vibrations and techniques for identifying and inhibiting the sticking of the cable. A system includes a surface actuator and a sensor. The actuator generates an axial wave on the wireline cable which travels down the cable. If there is sticking of the cable, a reflection can also occur at the location of sticking. This shift in the transmission of the wave on the wireline cable is used to identify the onset and/or presence of sticking.

    摘要翻译: 测井作业期间电缆工具和电缆的轴向振动控制技术。 在不希望的情况下,轴向振动可能导致或者使用测井工具的粘滑问题。 用于最小化振动的控制系统和策略以及用于识别和抑制电缆粘附的技术。 系统包括表面致动器和传感器。 执行器在电缆上沿导线产生轴向波,该电缆沿着电缆行进。 如果有电缆的粘附,也可能会在粘贴位置发生反射。 使用有线电缆上的波的传输的这种变化来识别粘着的发生和/或存在。

    Dipole logging tool
    5.
    发明授权
    Dipole logging tool 有权
    偶极测井工具

    公开(公告)号:US06474439B1

    公开(公告)日:2002-11-05

    申请号:US09537836

    申请日:2000-03-29

    IPC分类号: G01V140

    CPC分类号: G01V1/52

    摘要: A logging tool having a tool body, which can be positioned in a fluid-filled borehole, including a receiver section and a dipole transmitter; wherein the dipole transmitter includes a transducer with a shell having a reaction mass and a motor located therein, the motor operatively connecting the shell and the reaction mass such that only an outer surface of the shell is in contact with the fluid in the borehole. This new type of dipole source for well logging involves shaking all or part (axially) of a dipole tool body to produce a pure, broadband acoustic dipole signal while at the same time coupling as little energy as possible into the tool body. Important variations on this idea include a linear phased array of shaker sources, and active cancellation of tool borne noise.

    摘要翻译: 一种具有工具主体的测井工具,该工具主体可定位在充满流体的钻孔中,包括接收器部分和偶极发射器; 其中所述偶极发射器包括具有壳体的换能器,所述壳体具有反作用物质和位于其中的马达,所述马达可操作地连接所述壳体和所述反作用物质,使得只有所述壳体的外表面与所述钻孔中的流体接触。 这种用于测井的新型偶极子源涉及摇动偶极工具体的全部或部分(轴向),以产生纯的宽带声偶极子信号,同时将尽可能少的能量耦合到工具主体中。 这个想法的重要变化包括振荡器源的线性相控阵列,以及主动消除工具噪声。

    Expandable downhole tool
    6.
    发明授权
    Expandable downhole tool 有权
    可扩展井下工具

    公开(公告)号:US09188698B2

    公开(公告)日:2015-11-17

    申请号:US12412360

    申请日:2009-03-27

    IPC分类号: G01V1/40 G01V11/00

    CPC分类号: G01V11/005 Y10T29/49826

    摘要: A downhole tool, having a central axis defined, may selectively include a sensor section including one or more arms connected to the tool body with an open/close mechanism. The open/close mechanism is configured to move in a radial direction with respect to the axis of the tool body. The tool also includes at least one sensor attached to the arm, and the tool may include at least one transmitter section on the tool. The transmitter is configured to transmit acoustic energy to a formation.

    摘要翻译: 具有限定中心轴线的井下工具可以选择性地包括传感器部分,该传感器部分包括具有打开/关闭机构连接​​到工具主体的一个或多个臂。 打开/关闭机构构造成相对于工具主体的轴线在径向方向上移动。 该工具还包括附接到臂的至少一个传感器,并且该工具可以包括在该工具上的至少一个发射器部分。 发射器被配置成将声能传递到地层。

    Sonic logging tool including receiver and spacer structure
    7.
    发明授权
    Sonic logging tool including receiver and spacer structure 有权
    声波测井仪包括接收器和间隔器结构

    公开(公告)号:US07336562B1

    公开(公告)日:2008-02-26

    申请号:US10416264

    申请日:2000-11-16

    IPC分类号: G01V1/52

    CPC分类号: G01V1/523 Y10S367/911

    摘要: A formation logging tool having a substantially continuous central mandrel with regularly spaced mass blocks disposed thereon, at least some of the mass blocks carrying sensors such as receivers. By adopting this structure, the tool can be made to behave as a mass-spring structure and its flexural and extensional behaviour controlled such that its dispersion curve does not extend into the dispersion curve of the formation to be logged. The structure can be applied to the whole of the logging tool or just to the receiver section and/or any spacer section between the receiver and the transmitter section.

    摘要翻译: 地层测井工具具有基本上连续的中心心轴,其上布置有规则间隔的质量块,至少一些承载传感器的质量块如接收器。 通过采用这种结构,该工具可以做成质量 - 弹簧结构,并且其弯曲和拉伸行为被控制,使得其分散曲线不延伸到要记录的地层的分散曲线中。 该结构可以应用于整个测井工具,或仅适用于接收器部分和/或接收器和发射器部分之间的任何间隔部分。

    Acoustic logging tool
    8.
    发明授权
    Acoustic logging tool 有权
    声学测井工具

    公开(公告)号:US06739423B2

    公开(公告)日:2004-05-25

    申请号:US10065407

    申请日:2002-10-15

    IPC分类号: G01V140

    CPC分类号: G01V1/523 Y10S367/911

    摘要: A sleeve for an acoustic logging tool has a structure with a window section having fewer bars than a conventional sleeve separated by a slotted region with thin circumferential slots which are stress-relieved at the ends (“dumb-bell” shaped). Steel receiver mounts are provided for hydrophone pressure sensors and this, together with the axially oriented hydrophones makes the tool less susceptible to interfering vibration.

    摘要翻译: 用于声学测井工具的套筒具有窗口部分的结构,其具有比常规套筒更少的杆,其由具有薄的周向狭槽的开槽区域分开,该圆周狭槽在端部(“哑铃形”)处被应力释放。 为水听器压力传感器提供钢接收器支架,这与轴向定向的水听器一起使得该工具不易受到干扰振动的影响。

    Acoustic logging tool
    9.
    发明授权
    Acoustic logging tool 有权
    声学测井工具

    公开(公告)号:US06494288B1

    公开(公告)日:2002-12-17

    申请号:US09674192

    申请日:2000-12-11

    IPC分类号: G01V140

    CPC分类号: E21B47/011 G01V1/523

    摘要: A sleeve for an acoustic logging tool having a structure with a window section having fewer bars than a conventional sleeve separated by a slotted region with thin circumferential slots which are stress-relieved at the ends (“dumb-bell” shaped). Steel receiver mounts are provided for hydrophone pressure sensors and this, together with the axially oriented hydrophones, makes the tool less susceptible to interfering vibration.

    摘要翻译: 一种用于声学测井工具的套筒,具有一个结构,其窗口部分具有比常规套筒更少的杆,该槽部分由具有在端部应力释放(“哑铃”形状)的薄周边槽的开槽区域分开。 为水听器压力传感器提供钢接收器支架,这与轴向定向的水听器一起使得该工具不易受到干扰振动的影响。

    Wellsite systems utilizing deployable structure
    10.
    发明授权
    Wellsite systems utilizing deployable structure 有权
    采用可部署结构的井场系统

    公开(公告)号:US07896088B2

    公开(公告)日:2011-03-01

    申请号:US12034191

    申请日:2008-02-20

    IPC分类号: E21B23/00

    摘要: An apparatus for deploying an instrument usable with a well comprises at least one reversibly expandable structure, at least one actuator operable to change a perimeter dimension of the at least one reversibly expandable structure, at least one instrument disposed interior of the at least one reversibly expandable structure, and having an axial dimension, and tractoring fluid disposed between the at least one reversibly expandable structure and the at least one instrument. The apparatus is operable to perform at least one of exerting thrust to convey the at least one instrument with respect to at least one adjacent surface, creating compensating pressure between the at least one instrument and the at least one adjacent surface, and sealing between the at least one instrument and the at least one adjacent surface.

    摘要翻译: 用于展开可用于井的仪器的装置包括至少一个可逆扩展的结构,至少一个致动器,其可操作以改变所述至少一个可逆扩展结构的周长尺寸;至少一个仪器,设置在所述至少一个可逆膨胀 结构,并且具有轴向尺寸,以及设置在所述至少一个可逆膨胀结构和所述至少一个仪器之间的牵引流体。 所述装置可操作以执行至少一个施加推力以相对于至少一个相邻表面输送所述至少一个仪器,在所述至少一个仪器与所述至少一个相邻表面之间产生补偿压力,以及在所述至少一个相邻表面之间的密封 至少一个仪器和所述至少一个相邻表面。