公开(公告)号：US09605484B2

公开(公告)日：2017-03-28

申请号：US14194710

申请日：2014-03-01

申请人： Drilformance Technologies, LLC

发明人： Sean Gillis ,  Matt Mangan

IPC分类号： E21B7/24 ,  E21B44/00 ,  E21B10/08

CPC分类号： E21B7/24 ,  E21B10/083 ,  E21B44/00

摘要： A drilling apparatus including a drill bit and a nutation device. The drilling apparatus is configured to enable the drill bit to be rotated at a rotation frequency while the nutation device simultaneously nutates the drill bit at a nutation frequency. The nutation device may include a vibrating device for imposing vibrations upon the drilling apparatus at a vibration frequency, thereby causing nutation of the drill bit at the nutation frequency. The drilling apparatus may include a tuning mechanism for tuning the vibration frequency of the vibrating device. A method including rotating a drill bit at a rotation frequency and simultaneously nutating the drill bit at a nutation frequency.

公开(公告)号：US20110315452A1

公开(公告)日：2011-12-29

申请号：US13172507

申请日：2011-06-29

申请人： Robert J. Buske ,  John F. Bradford

发明人： Robert J. Buske ,  John F. Bradford

IPC分类号： E21B10/14

CPC分类号： E21B10/14 ,  E21B10/06 ,  E21B10/083 ,  E21B10/16

摘要： Drill bits with at least two roller cones of different diameters and/or utilizing different cutter pitches in order to reduce bit tracking during drilling operations are described. In particular, earth boring drill bits are provided, the bits having two or more roller cones, and optionally one or more cutter blades, the bits being arranged for reducing tracking by the roller cone teeth during operation by adjusting the teeth spacing, cone pitch angle, and/or the diameter of one or more of the cones. These configurations enable anti-tracking behavior and enhanced drilling efficiency during bit operation.

摘要翻译： 描述了具有不同直径的至少两个滚子锥体和/或利用不同切割器间距的钻头，以减少钻孔操作期间的钻头跟踪。 特别地，设置钻孔钻头，钻头具有两个或更多个滚子锥体，以及可选地一个或多个切割刀片，该钻头被布置用于通过调整齿间距，锥齿距角度减小在操作期间通过滚子锥齿的跟踪 ，和/或一个或多个锥体的直径。 这些配置在位操作期间能够实现抗跟踪行为和提高钻井效率。

公开(公告)号：US07464773B2

公开(公告)日：2008-12-16

申请号：US11465727

申请日：2006-08-18

申请人： Allen Kent Rives

发明人： Allen Kent Rives

IPC分类号： E21B10/08 ,  E21B10/24

CPC分类号： E21B10/083 ,  E21B10/24

摘要： A lubricating nutating single cone drill bit 10 includes bit shank 12 with an axially skewed journal 18 rotatably retaining cutter body 22. Bearings (26, 28, 30, 32) enable rotation of the cutter body 22. Lubrication flows to a gap between the axially skewed journal 18 and cutter body 22 from lubricant chamber 76 having plunger 80 acted on by an annulus fluid, the gap bounded by first 66 and second 68 radial dynamic seals. A fluid passage 90 extending through the bit 10 communicates with fluid inlet port 88 on the proximal end 16 of the bit shank 12. Fluid passage 90 also communicates with a first fluid outlet port 98 on the distal end 36 of the axially skewed journal 18 and with a second fluid outlet port 94 formed on a lateral portion of bit shank 12.

摘要翻译： 润滑章动单锥钻头10包括钻头柄12，其具有可旋转地保持切割器主体22的轴向倾斜的轴颈18.轴承（26,28,30,32）能够使切割器主体22旋转。润滑流动到轴向 倾斜的轴颈18和切割器主体22从具有柱塞80的润滑剂室76起作用，其由环形流体作用，间隙由第一和第二轴向径向动态密封限定。 延伸穿过钻头10的流体通道90与钻头柄12的近端16上的流体入口88连通。流体通道90还与轴向倾斜的轴颈18的远端36上的第一流体出口98连通， 具有形成在钻头柄12的侧部上的第二流体出口端口94。

公开(公告)号：US20080041628A1

公开(公告)日：2008-02-21

申请号：US11551182

申请日：2006-10-19

申请人： Allen Kent Rives

发明人： Allen Kent Rives

IPC分类号： E21B10/24

CPC分类号： E21B10/083 ,  E21B10/24

摘要： Lubricating nutating single cone drill bit (10, 100) includes bit shank (12, 112) with axially skewed journal (18, 118) rotatably retaining cutter body (22, 122). Bearings (26, 28, 30, 32; 126, 128, 130, 132) can enable rotation of cutter body (22, 122). Lubricant can be dispensed to a gap between journal (18, 118) and cutter body (22, 122) from lubricant chamber (76; 176, 179) having plunger (80; 180, 183), the gap bounded by first (66, 166) and second (68, 168) radial dynamic seals. Fluid passage (90, 190) extending through bit (10, 100) can communicate with fluid inlet port (88, 188) on proximal end (16, 116) of bit shank (12, 122). Fluid passage (90, 190) can further communicate with first fluid outlet port (98, 198) on distal end (36, 136) of journal (18, 118) and with second fluid outlet port (94, 194) formed on lateral portion of bit shank (12, 112).

摘要翻译： 润滑章动单锥钻头（10,100）包括具有可旋转地保持切割器本体（22,122）的轴向倾斜轴颈（18,118）的钻头柄（12,112）。 轴承（26,28,30,32; 126,128,130,132）能够使刀具本体（22,122）旋转。 润滑剂可以从具有柱塞（80; 180,183）的润滑剂室（76; 176,179）分配到轴颈（18,118）和切割器主体（22,122）之间的间隙，所述间隙由第一（66， 166）和第二（68,168）径向动态密封。 延伸穿过钻头（10,100）的流体通道（90,190）可与位柄（12,122）的近端（16,116）上的流体入口端口（88,188）连通。 流体通道（90,190）可以进一步与轴颈（18,118）的远端（36,136）上的第一流体出口（98,198）连通，并且与侧面部分上形成的第二流体出口（94,194） 的位柄（12,112）。

公开(公告)号：US07299887B2

公开(公告)日：2007-11-27

申请号：US10512399

申请日：2003-03-26

申请人： Xuezhong Liu ,  Yan Zhao

发明人： Xuezhong Liu ,  Yan Zhao

IPC分类号： E21B10/08 ,  E21B10/14

CPC分类号： E21B10/083

摘要： This invention relates to a single cone bit with offset axis and composite cones for oil and gas drilling, mining and other subterranean drilling operations. The bit consists of a head body and a cone. The cone section has a shape of composite cones. The outer circumference of the cone is composed of from back face of the cone to top of the cone an extended gage surface, an outer cone surface and a main cone surface. A plurality of cutting elements is mounted onto each cone surface. A head journal at lower end of the head body is for rotatablely connection with the cone. Between the axis of head journal and the axis of the bit, there is an offset value d along rotating direction of the cone. A gage pad is arranged on head body at a location opposite to the offset direction of the head journal. The gage pad is fitted with inserts or hardfaced with wear resistant alloy to prevent bit from whirling and prevent head body from being worn out and to ensure gage protection. Junk slots are machined along the side of head body and jet ports are arranged at lower bevel of the head body to guarantee cuttings removal and effective cleaning results. This invention improves the bit's ability to break rocks through impact for specific use in hard formations. The bit performance is obviously improved and overall drilling cost reduced.

摘要翻译： 本发明涉及一种具有偏心轴的单锥形钻头和用于油气钻井，采矿和其他地下钻井作业的复合锥体。 该钻头由头体和锥体组成。 锥形部分具有复合锥体的形状。 锥体的外圆周由圆锥体的后表面到锥体的顶部，延伸的计量表面，外圆锥表面和主锥体表面组成。 多个切割元件安装在每个锥体表面上。 头部主体下端的头颈部用于与锥体可旋转连接。 在磁头轴颈轴与钻头的轴线之间，沿锥体的旋转方向存在偏移值d。 在头部主体的与头颈部的偏移方向相反的位置处布置有量具垫。 量具垫配有插入件或耐磨合金表面，以防止钻头旋转，并防止头体磨损，并确保量具保护。 垃圾槽沿头部主体加工，喷嘴端口布置在头部主体的下斜面处，以确保切屑清除和有效的清洁效果。 本发明提高了钻头通过冲击破碎岩石的能力，用于硬地层中的特定用途。 钻头性能明显提高，整体钻井成本降低。

公开(公告)号：US4096917A

公开(公告)日：1978-06-27

申请号：US766589

申请日：1977-02-08

申请人： Jesse W. Harris

发明人： Jesse W. Harris

IPC分类号： E21B10/08 ,  E21B10/24 ,  E21B10/28 ,  E21B10/38 ,  E21B10/52 ,  E21B10/56 ,  E21B9/08 ,  E21C13/01 ,  E21C13/06

CPC分类号： E21B10/246 ,  E21B10/083 ,  E21B10/28 ,  E21B10/38 ,  E21B10/52 ,  E21B10/56

摘要： A partially solid head bit having a flow passage therethrough located at approximately the center of the bit is shown. The bit is designed for use in conjunction with a hammer action drilling apparatus. The flow passage extends through a shank of the bit to the bottom thereof. Surrounding the shank is a substantially hemispherical spiraled burr having an opening therethrough. The burr pushes against a shoulder of the shank during drilling. The mating surfaces of the shank and burr are lubricated by a suitable oil reservoir. On spirals of the burr and on the lower end of the shank are mounted hardened inserts for impacting against and breaking up the formation through which the bit may drill. The bottom of the shank may be even with, extend through, or be recessed with respect to the lower edge of the burr. The shank is angled a few degrees off the centerline of the drilling string to cause a wobbling action upon rotating the drill bit.

摘要翻译： 示出了位于钻头中心附近的具有流动通道的部分实心头部钻头。 该钻头设计用于与锤击钻孔装置结合使用。 流动通道延伸穿过钻头的柄部到其底部。 围绕柄部的是具有穿过其的开口的大致半球状的螺旋毛刺。 在钻孔期间，毛刺推动柄的肩膀。 柄和毛刺的配合表面由合适的储油器润滑。 在螺纹螺纹和柄的下端上安装有硬化刀片，用于冲击和破坏钻头可钻的地层。 柄部的底部可以相对于毛刺的下边缘是均匀的，延伸穿过的或者凹进的。 柄与钻柱的中心线倾斜几度，以在钻头旋转时产生摆动作用。

公开(公告)号：US3861477A

公开(公告)日：1975-01-21

申请号：US38331673

申请日：1973-07-27

申请人： RECH & 0 ACTIVITIES PETROLIERE

发明人： LAZAYRES ROBERT

IPC分类号： E21B10/08 ,  E21B10/24 ,  E21B10/50 ,  E21B17/10 ,  E21B9/36

CPC分类号： E21B17/10 ,  E21B10/083 ,  E21B10/24 ,  E21B10/50

摘要： A novel drilling bit constituted by a cylindrical roller having a diameter which is smaller than the diameter and larger than the radius of the drilled hole. The roller is rotatably mounted on a tubular shaft which is parallel to but displaced eccentrically with respect to the axis of the drill stem and armed on the flat cutting face thereof with cutting elements and peripheral teeth, protection against radial wear being provided by anti-abrasive elements incorporated in the surface of the cylindrical zone which forms an extension of the teeth. A drill-sten connector which is coaxial with the hole balances the eccentric displacement of the roller by means of eccentric masses which are protected against wear and is provided with a duct for drilling fluid.

摘要翻译： 一种由直径比直径小于钻孔半径大的圆柱滚子构成的新型钻头。 辊可旋转地安装在管状轴上，管状轴平行于但相对于钻杆的轴线偏心地移动，并且在切割元件和周边齿的平面切割面上安装，防止径向磨损由抗磨损 结合在形成牙齿延伸部的圆柱形区域的表面中的元件。 与孔同轴的钻孔连接器通过防止磨损的偏心块平衡辊的偏心位移，并且设置有用于钻探流体的管道。

公开(公告)号：US2076845A

公开(公告)日：1937-04-13

申请号：US66405833

申请日：1933-04-03

申请人： GLOBE OIL TOOLS CO

发明人： HOWARD JOHN H ,  CATLAND ALFRED C

IPC分类号： E21B10/08

CPC分类号： E21B10/083

公开(公告)号：US2025258A

公开(公告)日：1935-12-24

申请号：US73868534

申请日：1934-08-06

申请人： ZUBLIN JOHN A

发明人： ZUBLIN JOHN A

IPC分类号： E21B10/08

CPC分类号： E21B10/083

公开(公告)号：US1914042A

公开(公告)日：1933-06-13

申请号：US60098932

申请日：1932-03-24

申请人： RATH EDWIN L

发明人： RATH EDWIN L

IPC分类号： E21B10/08 ,  E21B10/12 ,  E21B10/16 ,  E21B10/24 ,  E21B10/60

CPC分类号： E21B10/60 ,  E21B10/083 ,  E21B10/12 ,  E21B10/16 ,  E21B10/24