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1. 发明申请

US20220081974A1 DOWN-THE-HOLE HAMMER DRILL BIT ASSEMBLY 有权
公开(公告)号：US20220081974A1
公开(公告)日：2022-03-17
申请号：US17414787
申请日：2019-11-27
申请人： SANDVIK MINING AND CONSTRUCTION OY , SANDVIK MINING AND CONSTRUCTION TOOLS AB
发明人： Olivier BRUANDET
IPC分类号： E21B10/38 , E21B4/14
摘要： A down-the-hole drilling assembly activated by fluid under pressure includes a casing having an axially rearward and forward end, a piston arranged movably inside the casing, a plurality of fluid passages for feeding and discharging pressurized fluid into and out of a working chamber for generating reciprocating movement of the piston, a drill bit at the forward end and provided with an anvil facing towards the piston for receiving impacts therefrom and an annular drive sub surrounding at least a portion of a shank and cooperating with the bit to form fluid passages extending length-wise along the shank. The drive sub has a concave arcuate groove extending circumferentially to form a chamber for collecting fluid from the hammer exhaust and redistributing a volume of the collected fluid from channels formed between complimentary splines of the drive sub and splines of the bit to flushing holes arranged in the bit.

2. 发明授权

US11085242B2 Pneumatic drilling with packer slideable along stem drill rod 有权
公开(公告)号：US11085242B2
公开(公告)日：2021-08-10
申请号：US16426549
申请日：2019-05-30
申请人： Numa Tool Company
发明人： Robert F. Vincent , Robert J. Meneghini , David T. Flynn
IPC分类号： E21B4/14 , E21B21/12 , E21B33/128 , E21B33/129 , E21B21/10 , E21B17/18 , E21B33/12 , E21B10/38 , E21B17/10
摘要： A bottom hole assembly (BHA) and method for drilling a bore with a pneumatic percussion hammer includes an expandable packer surrounding the stem rod connected to the hammer. The packer has an inner surface confronting the outer surface of the stem rod in an axially slideable, sealed relationship. The packer is expanded and fixed in the bore to separate a region of high hydraulic pressure above the packer from a region of lower hydraulic pressure below the packer. The method includes operating the pneumatic hammer and bit, while (i) the stem rod advances with a sliding seal against an inside surface of the expanded packer; (ii) pneumatic pressurization and exhaust for the hammer are guided within the stem rod; and (iii) the exhaust from the hammer is discharged into the lower clearance region surrounding the bit at the bottom of the bore.

3. 发明申请

US20200248510A1 THREADED COUPLING FOR PERCUSSION DRILL BIT 审中-公开
公开(公告)号：US20200248510A1
公开(公告)日：2020-08-06
申请号：US16268677
申请日：2019-02-06
申请人： James Jing Yao
发明人： James Jing Yao
IPC分类号： E21B17/042 , E21B10/38 , E21B10/42
摘要： An internally threaded bit for percussion drilling is provided, which has thread roots wider than the thread crests. The bit exhibits a reduced rate of ringing off, and can accept drill rods having a range of crest widths.

4. 发明授权

US10422185B2 Dual circulation fluid hammer drilling system 有权
公开(公告)号：US10422185B2
公开(公告)日：2019-09-24
申请号：US15550921
申请日：2015-11-16
申请人： Strada Design Limited
发明人： Ian Speer , Warren Strange
IPC分类号： E21B10/38 , E21B7/24 , E21B21/12 , E21B1/00 , E21B3/02 , E21B17/18 , E21B21/08 , E21B21/00
摘要： A dual circulation fluid hammer drilling system (10) has a fluid hammer (12) which is coupled to a drill string (14). The system (10) utilizes a first fluid (16) and a second fluid (18). The first fluid (16) is delivered through the drill string (14) to drive or otherwise power the fluid hammer (12). The second fluid (18) is also delivered through the drill string (14) but in isolation of the first fluid (16) so they do not mix within the drill string (14). The second fluid (18) passes through a hammer bit (38) of the hammer drill (12) and is directed to flow out from a bit face (20). Thus when the system (10) is in use the second fluid (18) will flow across the bit face (20). The first fluid (16) also exits the drilling system (10) at the hammer drill (12). However the first fluid (16) exits upstream or up-hole of the bit face (20).

5. 发明授权

US10344536B2 Drill bit for improved transport of cuttings 有权
公开(公告)号：US10344536B2
公开(公告)日：2019-07-09
申请号：US15551681
申请日：2016-02-03
申请人： SANDVIK INTELLECTUAL PROPERTY AB
发明人： Rasmus Hemph , Conny Kraft
IPC分类号： E21B10/38 , E21B10/567
摘要： A rock drill bit includes a head provided at one end of an elongate shank. A plurality of fluid flushing passageways extend axially from an internal bore extending through the shank with at least one fluid flushing passageway having an exit end at the front face formed as an elongate slot having a length greater than a width to facilitate the rearward transport of cut rock fragment.

6. 发明授权

US09739095B2 Drill bit having a sunken button and rock drilling tool for use with such a drill bit 有权
公开(公告)号：US09739095B2
公开(公告)日：2017-08-22
申请号：US14353499
申请日：2012-10-23
申请人： SANDVIK INTELLECTUAL PROPERTY AB
发明人： Conny Seppala
IPC分类号： E21B10/46 , E21B10/36 , E21B10/56 , E21B10/38
CPC分类号： E21B10/56 , E21B10/36 , E21B10/38 , E21B10/46
摘要： A drill bit for percussive rock drilling tools includes a drill bit head having a front surface including a face surface defining a forward-most end of the drill bit head and at least one hole in the drill bit head for receiving a button. The drill bit includes at least one recess located in the face surface. The recess is larger than the hole. The hole is disposed in the recess so that an open end of the hole is disposed below the face surface. The drill bit head further includes a gauge surrounding the face surface, the recess being partially disposed in the gauge.

7. 发明申请

US20160153236A1 PERCUSSION HAMMER BIT 审中-公开
标题翻译：殴打锤子
公开(公告)号：US20160153236A1
公开(公告)日：2016-06-02
申请号：US14895820
申请日：2014-08-20
申请人： Alan J. MARSHALL
发明人： Alan J. MARSHALL
IPC分类号： E21B1/00 , E21B4/14 , E21B10/38
CPC分类号： E21B1/00 , E21B4/14 , E21B10/36 , E21B10/38 , E21B10/64
摘要： A drill bit for use with a percussion drilling apparatus can include an elongated body with a first end, a second end, and a longitudinal surface extending between the first and second ends. A plurality of splines extends along the longitudinal surface of the drill bit internally, and at least one of the splines has an apex, a root, and a planar surface between the apex and root. The planar surface can be oriented at an angle to a plane extending from a center of the drill bit to a midpoint of the apex. The internal splines of the hammer bit correspond to external splines in a hammer casing.
摘要翻译：用于冲击钻孔设备的钻头可以包括具有第一端，第二端和在第一和第二端之间延伸的纵向表面的细长主体。多个花键沿着钻头的纵向表面在内部延伸，并且至少一个花键在顶点和根部之间具有顶点，根部和平面。平面表面可以与从钻头的中心延伸到顶点的中点的平面成一定角度。锤头的内部花键对应于锤套管中的外花键。

8. 发明授权

US09309726B2 Method and apparatus for remotely changing flow profile in conduit and drilling bit 有权
标题翻译：用于远程改变管道和钻头中流动剖面的方法和装置
公开(公告)号：US09309726B2
公开(公告)日：2016-04-12
申请号：US13897348
申请日：2013-05-17
申请人： Ahmed Tahoun , Raed I Kafafy , Karam J Jawamir , Mohammed A Aldheeb , Abdul Mushawwir Khalil
发明人： Ahmed Tahoun , Raed I Kafafy , Karam J Jawamir , Mohammed A Aldheeb , Abdul Mushawwir Khalil
IPC分类号： E21B10/61 , E21B34/06 , E21B10/18 , E21B10/38
CPC分类号： E21B10/61 , E21B10/18 , E21B10/38 , E21B34/06
摘要： An apparatus and method for remotely adjusting the hydraulic horse power per square inch (HSI) of a drill bit. The apparatus and method may allow the nozzle geometry to be varied remotely without the need to pull the drill string outside the hole. This nozzle may include a body configured to be secured within the rotary drill bit, and a fluid passage within that body that leads to an orifice. The geometry of the fluid passage may be variable, and varying it may result in a change in the nozzle HSI; this may allow drilling different rock formations to be optimized in different drilling environments. Different placements of the nozzle, such as within the inner flow passage or between the inner flow passage and annular flow passage for controlling flow profile within a wellbore, a tubular string or a flow conduit, may be envisioned.
摘要翻译：一种用于远程调节钻头每平方英寸（HSI）的液压马力的装置和方法。该装置和方法可以允许喷嘴几何形状可以远程变化，而不需要将钻柱拉到孔外。该喷嘴可以包括构造成固定在旋转钻头内的主体，以及在该主体内通向孔口的流体通道。流体通道的几何形状可以是可变的，并且改变它可能导致喷嘴HSI的变化; 这可能允许钻井不同的岩层在不同的钻井环境中进行优化。可以设想喷嘴的不同布置，例如在内部流动通道内部或内部流动通道和环形流动通道之间，用于控制井眼，管状管柱或流动管道内的流动分布。

9. 发明授权

US09045945B2 Attachment for percussion drill tools 有权
标题翻译：冲击钻具附件
公开(公告)号：US09045945B2
公开(公告)日：2015-06-02
申请号：US13814746
申请日：2011-08-10
申请人： Joseph Purcell
发明人： Joseph Purcell
IPC分类号： E21B4/14 , E21B10/38 , E21B21/10 , E21B31/03
CPC分类号： E21B4/14 , E21B10/38 , E21B21/103 , E21B31/03
摘要： An attachment for a fluid-operated percussion drill tool, the drill tool having a backhead assembly for attachment to a drill rod. The attachment comprises a shaft attachable to the backhead assembly, wherein the shaft comprises a central bore in fluid communication with a pressure bore of the drill rod. The attachment further comprises a sleeve co-axially slidably mounted on the shaft, the sleeve comprising an outer shoulder at a rear end thereof, and at least one rearwardly-directed exhaust passage. Pressurised air supplied from the central bore of the shaft to urge the sleeve rearwards into a closed position in which air is prevented from exhausting through the exhaust passage. When a restriction is encountered at the shoulder, the sleeve moves forward to an open position in which air is permitted to exhaust through the exhaust passage adjacent to the restriction.
摘要翻译：用于流体操作的冲击钻具的附件，所述钻具具有用于附接到钻杆的后端组件。附件包括可附接到后端组件的轴，其中轴包括与钻杆的压力孔流体连通的中心孔。所述附件还包括同轴地可滑动地安装在所述轴上的套筒，所述套筒在其后端处包括外肩部以及至少一个后向定向的排气通道。从轴的中心孔供应的加压空气将套筒向后推动到关闭位置，在该位置防止空气通过排气通道排出。当在肩部处遇到限制时，套筒向前移动到打开位置，在该位置允许空气通过与限制件相邻的排气通道排出。

10. 发明授权

US08992130B2 Arrangement for a down-the-hole hammer drill for use in soil consolidation through jet grouting 有权
标题翻译：用于通过喷射灌浆进行土壤固结的井下锤钻的布置
公开(公告)号：US08992130B2
公开(公告)日：2015-03-31
申请号：US13145093
申请日：2010-01-20
申请人： Magnus Hörman , Peter F. Johansson
发明人： Magnus Hörman , Peter F. Johansson
IPC分类号： E21B4/14 , E21B10/38 , E02D3/12 , E21B33/138
CPC分类号： E21B4/14 , E02D3/12 , E21B33/138
摘要： An arrangement for a down-the-hole hammer drill, for use in soil consolidation by jet grouting, and comprising a cylindrical machine housing, an impact mechanism driven by pressurised fluid that impacts onto a drill bit mounted in a chuck in the machine housing that allows reciprocating motion, whereby the machine housing has a central supply line for the driving fluid to the impact mechanism in which channels in the drill bit constitute outlets for used driving fluid. The machine housing is provided with a grouting nozzle for jet grouting, that the grouting nozzle is directed in a sideways direction and arranged at the periphery of the wall of the machine housing, that a rinsing channel for conducting a grouting mixture through the machine housing to the said grouting nozzle is arranged whereby the rinsing channel for the grouting mixture is separate from the supply line for the driving fluid of the impact mechanism.
摘要翻译：用于井下锤钻的布置，用于通过喷射灌浆的土壤固结，并且包括圆柱形机壳，由加压流体驱动的冲击机构，冲击机构撞击安装在机器壳体中的卡盘中的钻头，允许往复运动，由此机器壳体具有用于驱动流体到冲击机构的中心供应管线，其中钻头中的通道构成用于驱动流体的出口。机器壳体设有喷射灌浆灌浆喷嘴，灌浆喷嘴沿侧向定向并布置在机壳外壁的周边，一冲洗通道，用于将灌浆混合物通过机壳传送至所述灌浆喷嘴被布置成使得灌浆混合物的冲洗通道与用于冲击机构的驱动流体的供应管线分开。

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