DRILL STRING TELEMETRY SYSTEM AND METHOD

    公开(公告)号:EP2360497B1

    公开(公告)日:2018-12-05

    申请号:EP11166321.7

    申请日:2003-12-12

    IPC分类号: G01V11/00 E21B47/12

    摘要: A telemetry system and method for communicating information axially along a drill string (20) comprised of a drive train (78) supported within a housing (80). The system includes an axial conducting loop (22) formed by the drill string (20) for conducting an axial electrical signal embodying the information between a first axial position (48) and a second axial position (50) in the drill string (20), which axial conducting loop (22) extends between the first (48) and second (50) axial positions. A transmitter (170) transmits information to the axial conducting loop (22). The drive train includes a downhole end (24) which extends from and is located below the housing (80). At least one of the first (48) and second (50) axial positions is located in the downhole end (24). The method includes the step of conducting the axial electrical signal between the first (48) and second (50) axial positions through the axial conducting loop (22) which extends between the first (48) and second (50) axial positions.

    Drill String Telemetry System and Method
    2.
    发明公开
    Drill String Telemetry System and Method 审中-公开
    方法和测量系统的信号传递钻杆

    公开(公告)号:EP2360497A3

    公开(公告)日:2015-12-16

    申请号:EP11166321.7

    申请日:2003-12-12

    IPC分类号: G01V11/00 E21B47/12

    摘要: A telemetry system for communicating information axially along a drill string (24). The system includes an axial conducting loop (22) formed by the drill string for conducting an axial electrical signal embodying the information between a first axial position and a second axial position in the drill string, which axial conducting loop extends between the first and second axial positions. A transmitter (170) transmits information to the axial conducting loop. Further, at least a portion of the drill string between the first and second axial positions comprises an outer axial conductor (54) and an inner axial conductor (52) fixedly connected within the outer axial conductor such that an annular space is defined therebetween and such that the longitudinal axes thereof are substantially coincidental, and wherein at least a portion of the axial conducting loop is comprised of the inner and outer axial conductors. An electrical insulator is disposed within the annular space.

    Drill String Telemetry System and Method
    3.
    发明公开
    Drill String Telemetry System and Method 审中-公开
    VERFAHREN UND SYSTEM ZURMESSSIGNALÜBERTRAGUNGFÜRBOHRGESTÄNGE

    公开(公告)号:EP2360497A2

    公开(公告)日:2011-08-24

    申请号:EP11166321.7

    申请日:2003-12-12

    IPC分类号: G01V11/00 E21B47/12

    摘要: A telemetry system for communicating information axially along a drill string (24). The system includes an axial conducting loop (22) formed by the drill string for conducting an axial electrical signal embodying the information between a first axial position and a second axial position in the drill string, which axial conducting loop extends between the first and second axial positions. A transmitter (170) transmits information to the axial conducting loop. Further, at least a portion of the drill string between the first and second axial positions comprises an outer axial conductor (54) and an inner axial conductor (52) fixedly connected within the outer axial conductor such that an annular space is defined therebetween and such that the longitudinal axes thereof are substantially coincidental, and wherein at least a portion of the axial conducting loop is comprised of the inner and outer axial conductors. An electrical insulator is disposed within the annular space.

    摘要翻译: 一种遥测系统,用于沿着钻柱(24)轴向地传送信息。 该系统包括由钻柱形成的轴向导电回路(22),用于传导轴向电信号,该轴向电信号体现在钻柱中的第一轴向位置和第二轴向位置之间的信息,该轴向导电回路在第一和第二轴向 位置。 发射机(170)向轴向传导环路发送信息。 此外,在第一和第二轴向位置之间的钻柱的至少一部分包括固定地连接在外轴向导体内的外轴向导体(54)和内轴向导体(52),使得在其间限定环形空间, 其纵向轴线基本上是重合的,并且其中轴向导电回路的至少一部分由内部和外部轴向导体组成。 电绝缘体设置在环形空间内。