OBSERVATION OF VIBRATION OF ROTARY APPARATUS
    1.
    发明申请
    OBSERVATION OF VIBRATION OF ROTARY APPARATUS 审中-公开
    旋转装置的振动观察

    公开(公告)号:US20160251955A1

    公开(公告)日:2016-09-01

    申请号:US15031147

    申请日:2014-10-21

    Abstract: The operation of rotary equipment carried on elongate structure such as coiled tubing extending into a borehole from the Earth's surface is carried out by providing at least one optical fibre extending downhole to the rotary equipment from the surface, using optical time domain reflectometry to operating the optical fibre as a distributed vibration sensor while the rotary equipment is in operation, and thereby observing vibration created by the rotary equipment.

    Abstract translation: 通过使用光学时域反射测量技术来提供从表面延伸到井下的至少一根光纤到井下的旋转设备的至少一根光纤,从而进行延伸结构的旋转设备的操作,例如从地球表面延伸到钻孔中的连续油管。 光纤作为分布式振动传感器,同时旋转设备运行,从而观察由旋转设备产生的振动。

    INSTRUMENTED CUTTER
    3.
    发明申请

    公开(公告)号:US20220178246A1

    公开(公告)日:2022-06-09

    申请号:US17598334

    申请日:2020-03-27

    Abstract: A rotary cutting tool for use in a wellbore has an instrumented cutter fitted into a cavity in the tool body. The instrumented cutter body has an outer end portion exposed at the open end of a cavity and is connected to the tool body through at least one connecting section having a smaller cross-section and greater compliance than the outer end portion. The outer end portion and the connecting section are slightly movable within the cavity but the cavity surrounds at least part of the outer end portion sufficiently closely to limit transverse movement to elastic strain of the compliant connecting portion. One or more sensors, which may be strain gauges, are used to measure force on the outer end portion in a plurality of directions transverse to the cavity and causing elastic strain of the at least one connecting section.

    Instrumented cutter
    4.
    发明授权

    公开(公告)号:US11828164B2

    公开(公告)日:2023-11-28

    申请号:US17598334

    申请日:2020-03-27

    CPC classification number: E21B47/013 E21B10/32 E21B10/42 E21B10/567 E21B29/005

    Abstract: A rotary cutting tool for use in a wellbore has an instrumented cutter fitted into a cavity in the tool body. The instrumented cutter body has an outer end portion exposed at the open end of a cavity and is connected to the tool body through at least one connecting section having a smaller cross-section and greater compliance than the outer end portion. The outer end portion and the connecting section are slightly movable within the cavity but the cavity surrounds at least part of the outer end portion sufficiently closely to limit transverse movement to elastic strain of the compliant connecting portion. One or more sensors, which may be strain gauges, are used to measure force on the outer end portion in a plurality of directions transverse to the cavity and causing elastic strain of the at least one connecting section.

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