MAGNETIC DOWNHOLE TOOL AND RELATED SUBASSEMBLIES HAVING MU-METALLIC SHIELDING
    5.
    发明申请
    MAGNETIC DOWNHOLE TOOL AND RELATED SUBASSEMBLIES HAVING MU-METALLIC SHIELDING 审中-公开
    具有多金属屏蔽功能的磁性工具及相关底板

    公开(公告)号:US20160369596A1

    公开(公告)日:2016-12-22

    申请号:US15039014

    申请日:2013-12-24

    Abstract: Systems and related methods are disclosed that involve the use of a magnetic downhole assembly or a magnetic downhole tool. The assembly and tool include a mu-metal sleeve that is operable to isolate a magnetic field and a permanent magnet disposed within the mu-metal sleeve. The assembly and tool also include an actuator that is operable to selectively extend and retract the sleeve to alternatingly expose and shield the permanent magnet. A conveyance is operable to deploy the magnetic downhole assembly and tool to a selected location within a wellbore and a controller is communicatively coupled to the actuator and operable to generate a control signal that causes the actuator to extend or retract the permanent magnet from the mu-metal sleeve.

    Abstract translation: 公开了涉及使用磁性井下组件或磁性井下工具的系统和相关方法。 组件和工具包括可操作以隔离磁场的mu金属套筒和设置在mu金属套筒内的永磁体。 组件和工具还包括致动器,其可操作以选择性地延伸和缩回套筒以交替地暴露和屏蔽永磁体。 运输工具可操作地将磁性井下组件和工具部署到井眼内的选定位置,并且控制器可通信地联接到致动器并且可操作以产生控制信号,该控制信号使致动器从永磁体延伸或缩回, 金属套管

    Magnetic Downhole Tool And Related Subassemblies Having Mu-Metallic Shielding

    公开(公告)号:US20190136668A1

    公开(公告)日:2019-05-09

    申请号:US16239822

    申请日:2019-01-04

    Abstract: Systems and related methods are disclosed that involve the use of a magnetic downhole assembly or a magnetic downhole tool. The assembly and tool include a mu-metal sleeve that is operable to isolate a magnetic field and a permanent magnet disposed within the mu-metal sleeve. The assembly and tool also include an actuator that is operable to selectively extend and retract the sleeve to alternatingly expose and shield the permanent magnet. A conveyance is operable to deploy the magnetic downhole assembly and tool to a selected location within a wellbore and a controller is communicatively coupled to the actuator and operable to generate a control signal that causes the actuator to extend or retract the permanent magnet from the mu-metal sleeve.

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