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公开(公告)号：US5778991A
公开(公告)日：1998-07-14
申请号：US705007
申请日：1996-08-29
摘要： A directional boring apparatus is disclosed where the apparatus is controlled through a method which includes deviating a drill head from a straight path into a desired direction angled away from the straight path. The deviation is achieved by applying an axial force to the drill head when a drill head cutting member is positioned within an arc of rotation through which the desired direction passes. The drill head is retracted when the cutting member is outside of the arc of rotation.
摘要翻译： 公开了一种定向钻孔装置，其中通过包括将钻头从直线路径偏离到远离直线路径的期望方向的方法来控制装置。 当钻头切割构件定位在期望方向通过的旋转弧内时，通过向钻头施加轴向力来实现偏差。 当切割构件在旋转弧之外时，钻头缩回。
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公开(公告)号：US06588516B2
公开(公告)日：2003-07-08
申请号：US10191109
申请日：2002-07-08
IPC分类号： E21B1000
摘要： A drill head for an apparatus for horizontal directional drilling. The drill head includes a device for detecting angular orientation, a holder for the device for detecting angular orientation, the device for detecting angular orientation being disposed therein, a hammer driven by a liquid and a drill bit. The holder, the hammer and the drill bit are connected head to tail along a longitudinal axis of a drill string with the holder at a proximate end of the drill head and the drill bit at a distal end of the drill head.
摘要翻译： 一种水平定向钻井设备的钻头。 钻头包括用于检测角度定向的装置，用于检测角度定向的装置的保持器，用于检测角度定向的装置，其中设置有由液体驱动的锤和钻头。 保持器，锤子和钻头沿着钻柱的纵向轴线头尾连接，其中保持器在钻头的近端处，钻头位于钻头的远端。
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公开(公告)号：US06668946B2
公开(公告)日：2003-12-30
申请号：US10055735
申请日：2002-01-22
申请人： James R. Rankin , Richard K. Smith, Jr. , Peter C. Rozendaal , Randy R. Runquist , Scott A. Rempe
发明人： James R. Rankin , Richard K. Smith, Jr. , Peter C. Rozendaal , Randy R. Runquist , Scott A. Rempe
IPC分类号： E21B708
CPC分类号： E21B7/28 , E21B7/046 , E21B10/26 , E21B47/024
摘要： A steerable reamer and method for use in horizontal directional drilling. The reamer includes a carrier frame rotatably coupled to a reaming body, a carrier frame housing slidably coupled to the carrier frame, and an hydraulic cylinder for tilting the carrier frame relative to the carrier frame housing. The reamer may also include sondes for monitoring the position and orientation of the reamer during operation or a laser guidance system for automatically steering the reamer along a pilot bore.
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公开(公告)号：US06454025B1
公开(公告)日：2002-09-24
申请号：US09518419
申请日：2000-03-03
IPC分类号： E21B1000
摘要： A drill head for an apparatus for horizontal directional drilling. The drill head includes a device for detecting angular orientation, a holder for the device for detecting angular orientation, the device for detecting angular orientation being disposed therein, a hammer driven by a liquid and a drill bit. The holder, the hammer and the drill bit are connected head to tail along a longitudinal axis of a drill string with the holder at a proximate end of the drill head and the drill bit at a distal end of the drill head.
摘要翻译： 一种水平定向钻井设备的钻头。 钻头包括用于检测角度定向的装置，用于检测角度定向的装置的保持器，用于检测角度定向的装置，其中设置有由液体驱动的锤和钻头。 保持器，锤子和钻头沿着钻柱的纵向轴线头尾连接，其中保持器在钻头的近端处，钻头位于钻头的远端。
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公开(公告)号：USRE44427E1
公开(公告)日：2013-08-13
申请号：US13355308
申请日：2012-01-20
IPC分类号： E21B10/00
摘要： A drill head for an apparatus for horizontal directional drilling. The drill head includes a device for detecting angular orientation, a holder for the device for detecting angular orientation, the device for detecting angular orientation being disposed therein, a hammer driven by a liquid and a drill bit. The holder, the hammer and the drill bit are connected head to tail along a longitudinal axis of a drill string with the holder at a proximate end of the drill head and the drill bit at a distal end of the drill head.
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