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公开(公告)号：US1044598A
公开(公告)日：1912-11-19
申请号：US1911644837
申请日：1911-08-18
申请人： SULLIVAN JAMES C
发明人： SULLIVAN JAMES C
CPC分类号： E21B10/66
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公开(公告)号：US20160312575A1
公开(公告)日：2016-10-27
申请号：US15200514
申请日：2016-07-01
发明人： James A. Hewson , Philip M. Burge
CPC分类号： E21B7/061 , E21B10/66 , E21B34/06 , E21B43/103
摘要： A method of forming a supported subterranean well bore in which, in one disclosed embodiment, a first drill bit is mounted on a first string of casing tubulars via a steerable tool, and the drill bit is used to form a first bore. Upon reaching the required depth the casing string is cemented in place to support the formed bore and a second drill bit is mounted on a second casing string and is inserted into the first casing string. The second drill bit is used to drill through the wall of the first casing string and proceed to form a second, deeper bore. Once the second drill bit has reached the required depth, the second casing string is cemented in place to support the second bore.
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公开(公告)号：US20140041942A1
公开(公告)日：2014-02-13
申请号：US13804368
申请日：2013-03-14
申请人： DURA DRILLING, INC.
发明人： Robert E. Able
IPC分类号： E21B17/14
摘要： A drilling system for boring into ground includes a bottom hole assembly having a rotatable casing shoe, an independently rotatable driveshaft disposed within the casing shoe, and a bearing housing interdisposed between the driveshaft and the casing shoe to control a distance between a centerline of the driveshaft and a centerline of the casing shoe. The driveshaft includes a bit disposed at a distal end thereof, extending beyond the casing shoe distal end. The driveshaft centerline and the casing shoe centerline are substantially parallel and radially offset.
摘要翻译： 用于钻入地面的钻孔系统包括底孔组件，其具有可旋转的壳体靴，设置在壳体靴内的独立可旋转的驱动轴以及布置在驱动轴和壳体靴之间的轴承壳体，以控制驱动轴的中心线之间的距离 和套管鞋的中心线。 驱动轴包括设置在其远端的钻头，其延伸超过套管鞋的远端。 驱动轴中心线和套管鞋中心线基本平行并径向偏移。
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公开(公告)号：US20110259641A1
公开(公告)日：2011-10-27
申请号：US13062780
申请日：2009-09-08
摘要： The present invention concerns an apparatus (1) for modifying sidewalls of a borehole. The apparatus includes a longitudinal housing (2) adapted to fit inside the borehole. The housing includes a first end portion (11), a second end portion (12), and a side portion (13) between said end portions (11, 12), adapted to face the sidewalls of the borehole. Means (5) are provides on the side of the housing (2) for removing material from said borehole sidewall. The housing (2) is adapted to be rotated with a controlled rotational speed in relation to said borehole sidewalls and to be fed in a controlled rate of longitudinal motion in relation to said borehole. Furthermore, the invention relates to a method for making a borehole with internal, helical grooves.
摘要翻译： 本发明涉及一种用于修改钻孔侧壁的装置（1）。 该装置包括适于装配在钻孔内的纵向壳体（2）。 壳体包括第一端部部分（11），第二端部部分（12）和位于所述端部部分（11,12）之间的侧部分（13），适于面对钻孔的侧壁。 装置（5）设置在壳体（2）的侧面，用于从所述钻孔侧壁去除材料。 壳体（2）适于以相对于所述钻孔侧壁的受控旋转速度旋转并以相对于所述钻孔的受控控制的纵向运动速率进给。 此外，本发明涉及一种制造具有内部螺旋槽的钻孔的方法。
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48.发明申请Drill Bit and Method for Inserting, Expanding, Collapsing, and Retrieving Drill Bit 有权钻头和插入，扩展，折叠和取回钻头的方法公开(公告)号：US20110120774A1
公开(公告)日：2011-05-26
申请号：US12995766
申请日：2009-05-28
申请人： Douwe Johannes Runia
发明人： Douwe Johannes Runia
CPC分类号： E21B10/66 , E21B10/48 , E21B10/633 , E21B23/02
摘要： A drill bit comprising a bit body connectable to a drill string at an first end, which bit body is provided with a longitudinal passageway extending from an opening at the first end to a port at a second end a closure element for closing the passageway, when the closure element is in a closing position, which closure element is removable, and wherein the closure element comprises a first and a second member which are movable relative to each other between an expanded configuration and a collapsed configuration, in which collapsed configuration, the closure element is retractable through the passageway to the first end.
摘要翻译： 一种钻头，包括在第一端可连接到钻柱的钻头体，该钻头体设置有从第一端的开口延伸到第二端的端口的纵向通道，用于封闭通道的闭合元件， 闭合元件处于关闭位置，该闭合元件是可移除的，并且其中闭合元件包括第一和第二构件，第一和第二构件可在膨胀构型和收缩构型之间相对于彼此移动，其中收缩构型，封闭件 元件可以通过通道缩回到第一端。
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49.发明授权Liner drilling system and method of liner drilling with retrievable bottom hole assembly 有权衬管钻孔系统和衬管钻孔方法可回收底孔组件公开(公告)号：US07926578B2
公开(公告)日：2011-04-19
申请号：US12347610
申请日：2008-12-31
申请人： Michael E. Moffitt , Michael Brouse
发明人： Michael E. Moffitt , Michael Brouse
IPC分类号： E21B19/16
摘要： A liner drilling system employs a bottom hole assembly that may be retrieved before reaching the total liner depth. The system includes an outer string made up of a liner and a profile nipple. An inner string including a running tool, drill pipe, and a drill lock tool are lowered into the outer string and rotationally and axially locked to the outer string. Drilling may be performed by rotating the inner string, which also rotates the outer string. The operator may retrieve the inner string by pulling the inner string and the liner upward until the upper end of the liner is located at the drilling rig floor. While supporting the liner at the drilling rig floor, the operator retrieves the inner string, then re-runs it back into the outer string.
摘要翻译： 衬管钻孔系统采用底孔组件，其可以在达到总衬套深度之前被检索。 该系统包括由衬套和型材接头构成的外部线。 包括行进工具，钻杆和钻具锁定工具的内部柱被下降到外部柱中并且旋转并轴向地锁定到外部柱。 可以通过旋转内部柱而进行钻孔，其也旋转外部柱。 操作者可以通过向内拉动内柱和衬套来取回内柱，直到内衬的上端位于钻机底板。 当在钻机底盘上支撑衬管时，操作者检索内部柱，然后将其重新运回到外部柱中。
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公开(公告)号：US07775303B2
公开(公告)日：2010-08-17
申请号：US11547688
申请日：2005-04-06
申请人： Ove Göting
发明人： Ove Göting
CPC分类号： E21B7/20 , E21B10/327 , E21B10/40 , E21B10/66
摘要： An apparatus for a drilling tool includes a pilot drilling bit, a reamer, and a pilot body which is disposed to support the reamer and the pilot drilling bit at the end of a casing tube. The reamer includes a closed position in which the parts of the tool are concentric with one another and displaceable through the casing tube, and an open position in which at least a part of the reamer is located radially outside the casing tube. The pilot body includes a male portion which extends through the reamer, the male portion of the pilot body forming a cam surface for transferring rotation energy to the reamer and for switching the reamer between the closed and open positions, and the male portion of the pilot body being insertable in a recess in the pilot drilling bit.
摘要翻译： 一种用于钻具的装置包括一个先导钻头，一个铰刀和一个引导体，该导向体设置成在套管末端支撑铰刀和导向钻头。 铰刀包括关闭位置，其中工具的部件彼此同心并且可通过套管移动，以及打开位置，其中铰刀的至少一部分位于套管的径向外侧。 引导体包括延伸穿过铰刀的阳部分，引导体的阳部分形成凸轮表面，用于将旋转能量传递到铰刀并且用于在铰接器和打开位置之间切换铰刀，并且导向件的凸形部分 主体可插入导向钻头中的凹槽中。
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