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公开(公告)号:US20220220807A1
公开(公告)日:2022-07-14
申请号:US17595569
申请日:2020-05-21
摘要: A hybrid bit includes a fixed cutting structure and a rolling cutting structure. The fixed cutting structure includes a plurality of fixed cutting elements. The rolling cutting structure is coupled to the fixed cutting structure and includes a journal bore extending through the rolling cutting structure from a leading face to a trailing face, and a radially outer surface. The rolling cutting structure also includes a plurality of cutting elements extending from the radially outer surface of the rolling cutting structure.
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公开(公告)号:US20210054695A1
公开(公告)日:2021-02-25
申请号:US16813135
申请日:2020-03-09
申请人: BLY IP INC.
摘要: A drill bit comprises a first and a second body received within the first body. Each of the first body and second body has a respective crown, each crown having an inner and an outer operative circumference. The outer operative circumference of the second body and the inner operative circumference of the first body can define a first volume that can receive a tubular core sample. The second body can define a break surface that breaks the tubular core sample into core pieces. The drill bit can be employed in a borehole with a reverse circulation system that pumps fluid around an outer surface of the bit, and returning fluid can carry the core pieces out of the borehole.
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公开(公告)号:US10107039B2
公开(公告)日:2018-10-23
申请号:US14720189
申请日:2015-05-22
发明人: Jon Schroder
摘要: A modular hybrid drill bit is disclosed comprising a plurality of fixed blades and at least one rolling cutter assembly that is mechanically fastened to a bit body by a plurality of mechanical fasteners. The at least one rolling cutter assembly can be adjusted to change the axial and radial exposure of the rolling cutter elements.
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公开(公告)号:US09782857B2
公开(公告)日:2017-10-10
申请号:US14611167
申请日:2015-01-30
发明人: Don Q. Nguyen , Carl E. Poteet , Eric C. Sullivan , John F. Bradford , Mark P. Blackman , Alan J. Massey , Gregory L. Ricks
摘要: A method of improving the service life of a drill bit comprises creating a weldment between load bearing portions of the drill bit where the weldment has a preselected root gap greater than about 25 mils and a preselected root face greater than about 25 mils, and where the weldment has a material property greater than the materials being joined.
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公开(公告)号:US09611698B2
公开(公告)日:2017-04-04
申请号:US14344448
申请日:2012-09-14
申请人: John P. Maher , Randy R. Runquist
发明人: John P. Maher , Randy R. Runquist
CPC分类号: E21B10/34 , B23P6/00 , E21B10/20 , E21B10/22 , E21B10/24 , E21B10/25 , E21B10/28 , Y10T29/49721 , Y10T29/4973
摘要: The present disclosure provides a back reamer roller cone that is configured so that the bearings assemblies therein can be relatively easily removed and replaced. Methods of replacing the bearing assemblies in a back reamer are also provided.
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公开(公告)号:US20160237753A1
公开(公告)日:2016-08-18
申请号:US15025467
申请日:2013-10-31
IPC分类号: E21B10/20
摘要: A disclosed embodiment for a drill bit arm for a rotary subterranean drill bit includes a pocket that extends radially inward from an outer surface of the drill bit arm. The pocket may include a void where work piece material has been removed. The pocket may be next to a leading edge of the drill bit arm and may extend to remove at least a portion of a trailing edge of the drill bit arm. When the drill bit arm includes a lifting surface, the pocket may be next to and follow an upward curvature of the lifting sur face. The pocket may reduce wear and tear on the drill bit arm during operation. The pocket may provide a location for placing a desired piece of equipment, such as an instrumentation element and/or a communication element.
摘要翻译: 用于旋转地下钻头的钻头臂的公开的实施例包括从钻头臂的外表面径向向内延伸的凹槽。 袋子可以包括已经去除工件材料的空隙。 袋可以在钻头臂的前缘旁边,并且可以延伸以移除钻头臂的后缘的至少一部分。 当钻头臂包括提升表面时,口袋可以在提升表面的上方的曲率旁边并跟随。 在操作过程中,该口袋可能会减少钻头臂的磨损。 口袋可以提供放置所需的设备(例如仪表元件和/或通信元件)的位置。
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公开(公告)号:US20150337603A1
公开(公告)日:2015-11-26
申请号:US14720189
申请日:2015-05-22
发明人: Jon SCHRODER
摘要: A modular hybrid bit is disclosed comprising a plurality of fixed blades and at least one rolling cutter assembly that is mechanically fastened to the bit body by a plurality of mechanical fasteners. The rolling cutter assembly can be adjusted to change the axial and radial exposure of the rolling cutter elements.
摘要翻译: 公开了一种模块化混合钻头,其包括多个固定刀片和通过多个机械紧固件机械地紧固到钻头体上的至少一个滚切刀具组件。 可以调节滚动刀具组件以改变滚动刀具元件的轴向和径向暴露。
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公开(公告)号:US20140216824A1
公开(公告)日:2014-08-07
申请号:US14131640
申请日:2012-06-28
申请人: Karl Kammerer , Wolfgang Essig
发明人: Karl Kammerer , Wolfgang Essig
摘要: A drill head including a tool holder, chisel supports mounted thereon and drill bits. According to this invention, the chisel supports can be separated from the tool holder.
摘要翻译: 一种钻头,包括工具架,安装在其上的凿子支撑件和钻头。 根据本发明,凿子支撑件可以与工具架分离。
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公开(公告)号:US20100206638A1
公开(公告)日:2010-08-19
申请号:US12370766
申请日:2009-02-13
申请人: Todd Bielawa , James Schulz
发明人: Todd Bielawa , James Schulz
CPC分类号: E21B10/28
摘要: An improved hole opener assembly for horizontal drilling is disclosed that is less prone to failure as a result of cone arm break out or pocket side wall fracture. The interface between the cone arm and the pocket employs a key and slot configuration with a tighter fit than between the arm and the pocket to reduce the stress on the pocket side wall during drilling.
摘要翻译: 公开了一种用于水平钻孔的改进的开孔器组件,其由于锥形臂破裂或袋侧壁破裂而不容易发生故障。 锥形臂和口袋之间的界面采用了紧密配合的钥匙和槽形结构,而不是在臂和袋之间,以减少在钻孔期间袋侧壁上的应力。
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公开(公告)号:US07140454B2
公开(公告)日:2006-11-28
申请号:US10482890
申请日:2002-07-05
申请人: Douwe Johannes Runia
发明人: Douwe Johannes Runia
CPC分类号: E21B10/633 , E21B10/20 , E21B47/00
摘要: A well drilling bit having a bit body attachable to a tubular drill string, which bit body is internally provided with a passageway providing fluid communication, when the drill string is attached to the bit body, between the interior of the drill string and the exterior of the bit body; a closure element for selectively closing the passageway; and one or more chip-making elements, wherein the chip-making elements has one or more roller-cones, wherein the closure element is releasably connectable to the bit body, and outwardly movable from a closing position to an opening position, and wherein the closure element includes at least one of the roller-cones.
摘要翻译: 一种钻井钻头,其具有可附接到管状钻柱的钻头体,该钻头体内部设置有通道,当钻柱附接到钻头体时,该钻杆体在钻柱的内部和钻柱的内部之间提供流体连通 位身 用于选择性地关闭通道的闭合元件; 以及一个或多个芯片制造元件,其中所述芯片制造元件具有一个或多个辊锥,其中所述封闭元件可释放地连接到所述钻头体,并且可以从关闭位置向外移动到打开位置,并且其中 闭合元件包括至少一个辊锥体。
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