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    Apparatus and methods for communicating with a downhole tool
    2.
    发明授权
    Apparatus and methods for communicating with a downhole tool 有权

    公开(公告)号：US10591635B2

    公开(公告)日：2020-03-17

    申请号：US14738071

    申请日：2015-06-12

    申请人： WELL RESOLUTIONS TECHNOLOGY

    发明人： Lianhe Guo ,  Tsili Wang ,  Bruce Carter

    IPC分类号： E21B47/12 ,  G01V11/00

    摘要： An apparatus for communicating with a downhole tool includes a sensor body including at least two electrodes electrically insulated from one another and an external control device configured to engage the two electrodes. Detection circuitry connected to the two electrodes is configured to monitor an electrical status across the two electrodes, through the external control device, and upon detecting a change in electrical status that matches a predefined pattern, communicate a command to power management circuitry to alter a power status of the downhole tool.

    APPARATUS AND METHODS FOR MAKING AZIMUTHAL RESISTIVITY MEASUREMENTS
    5.
    发明申请
    APPARATUS AND METHODS FOR MAKING AZIMUTHAL RESISTIVITY MEASUREMENTS 有权

    公开(公告)号：US20170371063A1

    公开(公告)日：2017-12-28

    申请号：US15696543

    申请日：2017-09-06

    申请人： WELL RESOLUTIONS TECHNOLOGY

    发明人： Tsili Wang

    IPC分类号： G01V3/30 ,  G01V3/12 ,  G01V3/26 ,  G01V3/28

    CPC分类号： G01V3/30 ,  G01V3/12 ,  G01V3/26 ,  G01V3/28 ,  G01V3/34 ,  G06F17/30486 ,  G06F17/3053

    摘要： A resistivity measuring tool used in a drillstring having a drill bit on a distal end for drilling a wellbore in a formation includes a tool body having a longitudinal axis, a sensor configured to measure the angular position of the tool body relative to the wellbore, at least one axial antenna including a wire winding for generating an axial magnetic moment parallel with the longitudinal axis, and at least one transverse antenna. The transverse antenna includes an antenna body disposed within a pocket extending radially inward from an outer surface of the tool body and one or more turns of wire wound around the antenna body, the wire winding generating a transverse magnetic moment orthogonal to the longitudinal axis.

    Apparatus and method for downhole resistivity measurements
    7.
    发明授权
    Apparatus and method for downhole resistivity measurements 有权
    井下电阻率测量的装置和方法

    公开(公告)号：US09575201B2

    公开(公告)日：2017-02-21

    申请号：US14251388

    申请日：2014-04-11

    申请人： Well Resolutions Technology

    发明人： Tsili Wang

    IPC分类号： G01V3/00 ,  G01V3/26 ,  E21B49/00 ,  E21B47/12 ,  G01V3/28

    CPC分类号： G01V3/26 ,  E21B47/122 ,  E21B49/00 ,  G01V3/28

    摘要： A downhole tool includes a body having a longitudinal axis and bore therethrough, an array of longitudinal electrode segments separated by electrical insulators, wherein substantially an entire cross section of said body comprises at least one electrode segment, at least one longitudinal electrode configured to emit a first electrical current into said formation and measure said first emitted current, at least one longitudinal electrode segment configured to emit a second electrical current for directing said first emitted current into said formation, and at least one longitudinal electrode segment configured to receive said first emitted current returning from said formation.

    摘要翻译： 井下工具包括具有纵向轴线和穿过其中的孔的主体，由电绝缘体分开的纵向电极段阵列，其中所述主体的基本上整个横截面包括至少一个电极段，至少一个纵向电极，被配置为发射 第一电流进入所述地层并测量所述第一发射电流，至少一个纵向电极段被配置为发射第二电流，用于将所述第一发射电流引导到所述地层中;以及至少一个纵向电极段，被配置为接收所述第一发射电流 从所述地层返回。