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1. 发明授权

US07775302B2 Casing shoe and retrievable bit assembly 有权
标题翻译：套管鞋和可回收的钻头组件
公开(公告)号：US07775302B2
公开(公告)日：2010-08-17
申请号：US12184675
申请日：2008-08-01
申请人： Tommy M. Warren
发明人： Tommy M. Warren
IPC分类号： E21B10/66 , E21B10/32 , E21B17/14
CPC分类号： E21B17/14 , E21B10/64
摘要： An earth boring bit assembly has a tubular mandrel carried by a casing shoe at the lower end of a string of casing. The casing shoe has stabilizer blades spaced circumferentially apart from each other. A cutter arm seat is formed on the leading edge of each blade at a lower end of the casing shoe. Windows are formed in and spaced circumferentially around the mandrel. A cutter arm is pivotally mounted within each window of the mandrel and movable from an extended position located within one of the cutter arm seats to a recessed position within its window. The cutter arm seats support the cutter arms for torque and axial weight. A sleeve inside the mandrel prevents the cutter arms from pivoting to a recessed position until the sleeve is moved to a released position.
摘要翻译：地镗头组件具有由套管的下端的套管托架承载的管状心轴。套管鞋具有彼此周向间隔开的稳定器叶片。在套管鞋的下端形成有每个刀片的前缘上的刀臂座。窗部围绕心轴形成并围绕圆周间隔开。刀具臂枢转地安装在心轴的每个窗口内，并且可以从位于其中一个刀臂座内的延伸位置移动到其窗内的凹进位置。切割臂支座支撑切割臂的扭矩和轴向重量。心轴内的套筒可防止刀具臂枢转到凹入位置，直到套筒移动到释放位置。

2. 发明授权

US5975222A Reverse circulation drilling system with bit locked underreamer arms 失效
标题翻译：反向循环钻孔系统，带有位锁定的手臂
公开(公告)号：US5975222A
公开(公告)日：1999-11-02
申请号：US790066
申请日：1997-01-28
申请人： Ardis L. Holte
发明人： Ardis L. Holte
IPC分类号： E21B10/26 , E21B4/14 , E21B10/32 , E21B10/36 , E21B10/66 , E21B21/16
CPC分类号： E21B10/36 , E21B10/32 , E21B10/66 , E21B21/16 , E21B4/14
摘要： A drill bit assembly includes a driver adapted for attachment to a down hole pneumatic hammer. A pilot bit is coupled to the driver in a manner permitting rotational and axial movement between driver and pilot bit. A series of underreamer arms are disposed intermediate the driver and the pilot bit and engage a centrally disposed cam block on the pilot bit. Pivot pins of the underreamer arms are journaled in and move with the driver during partial rotation of the driver during arm deployment and retraction. Passageways in the driver and pilot bit direct compressed air to the working surface of the bit for discharging particles upwardly through channels in the bit and driver. Inclined surfaces on the underreaming arms cooperate with the lower end of a casing to contribute to are retraction prior to removal of the assembly through the casing.
摘要翻译：钻头组件包括适于附接到井下气动锤的驱动器。引导位以允许驱动器和引导位之间的旋转和轴向移动的方式联接到驱动器。一系列扩充臂布置在驾驶员和导向钻头之间，并且与引导钻头上的中心布置的凸轮块接合。在手臂部署和撤回期间，在驱动器的部分旋转期间，扩充臂的枢轴引脚被记录并且随着驾驶员移动。驾驶员和驾驶员中的通道将直接压缩空气直接送到钻头的工作表面，以便通过钻头和驱动器中的通道将颗粒向上排放。在流动的臂之间的倾斜表面与壳体的下端配合以有助于在通过壳体移除组件之前缩回。

3. 发明授权

US5787999A Drill bit with set of underreamer arms 失效
标题翻译：钻一点钻头
公开(公告)号：US5787999A
公开(公告)日：1998-08-04
申请号：US674123
申请日：1996-07-01
申请人： Ardis L. Holte
发明人： Ardis L. Holte
IPC分类号： E21B10/26 , E21B4/14 , E21B10/32 , E21B10/36 , E21B10/66 , E21B21/16 , F21B10/66
CPC分类号： E21B21/16 , E21B10/32 , E21B10/36 , E21B10/66 , E21B4/14
摘要： A drill bit assembly includes a driver adapted for attachment to a down hole pneumatic hammer. A pilot bit is coupled to the driver in a manner permitting rotational and axial movement between driver and pilot bit. A series of underreamer arms are disposed intermediate the driver and the pilot bit and engage a centrally disposed cam block on the pilot bit. Pivot pins of the underreamer arms are journaled in and move with the driver during partial rotation of the driver during arm deployment and retraction. Passageways in the driver and pilot bit direct compressed air to the working surface of the bit for discharging particles upwardly through channels in the bit and driver. Inclined surfaces on the underreaming arms cooperate with the lower end of a casing to contribute to arm retraction prior to removal of the assembly through the casing.
摘要翻译：钻头组件包括适于附接到井下气动锤的驱动器。引导位以允许驱动器和引导位之间的旋转和轴向移动的方式联接到驱动器。一系列扩充臂布置在驾驶员和导向钻头之间，并且与引导钻头上的中心布置的凸轮块接合。在手臂部署和撤回期间，在驱动器的部分旋转期间，扩充臂的枢轴引脚被记录并且随着驾驶员移动。驾驶员和驾驶员中的通道将直接压缩空气直接送到钻头的工作表面，以便通过钻头和驱动器中的通道将颗粒向上排放。在通过壳体移除组件之前，在流动臂上的倾斜表面与壳体的下端配合以有助于臂缩回。

4. 发明授权

US5662182A System for in situ replacement of cutting means for a ground drill 失效
标题翻译：用于原位更换地面钻机切割装置的系统
公开(公告)号：US5662182A
公开(公告)日：1997-09-02
申请号：US433402
申请日：1995-07-07
申请人： Gavin Thomas McLeod , Matthew Vance Egan
发明人： Gavin Thomas McLeod , Matthew Vance Egan
IPC分类号： E21B7/00 , E21B10/02 , E21B10/62 , E21B10/64 , E21B10/66 , E21B23/03 , E21B25/02
CPC分类号： E21B10/66 , E21B10/02 , E21B25/02
摘要： A retractable drill bit system (10) comprises a drive sub (18) which is adapted for connection to a lower end of a drill (12), a tool (20) for installing and retractable drill bit segments (22) from the drive sub (18); and an insert (24) for selectively locking the bit segments (22) to an end of the drive sub (18) and releasing the bit segments (22). A plurality of recesses (5B) are formed about an inner circumferential wall at one end of the drive sub (18) and a landing seat (32) formed about the inner wall upstream of the recesses (58). The area of the interior wall between the landing seat (32) and recesses (58) is profiled with a series of tapered and level surfaces. The tool (20) includes a slidable cradle (176) extending from one end about which the bit segments (22) are held during installation and retrieval. The bit segments (22) being held in place about the cradle by an elastic band (198). The insert (24) is provided at one end with a series of keyways (218) which locate over the bit segments (22) when the bit segments are locked to the drive sub (18). The insert (24) is always retained within the drive sub (18). Bit segments (22) are carried by the tool (20) to the drive sub (18) and locked in place by the insert (24). The tool (20) can then be withdrawn and the drill (12) operated in the normal manner. To receive the bit segments (22), the tool (20) is relowered into the drill and then withdrawn a short distance to retract the insert (24) so that the bit segments (22) collapse back onto the cradle (176) and can then be withdrawn from the drill (12).
摘要翻译： PCT No.PCT / AU94 / 00322 Sec。 371日期：1995年7月7日 102（e）日期1995年7月7日PCT提交1994年6月15日PCT公布。 WO94 / 29567 PCT出版物日期1994年12月22日可伸缩钻头系统（10）包括适于连接到钻头（12）的下端的驱动副（18），用于安装和缩回钻头段（22）的工具（20））从驱动子（18）; 以及用于选择性地将钻头段（22）锁定到驱动副（18）的端部并释放钻头段（22）的插入件（24）。围绕驱动副（18）的一端的内周壁和在凹部（58）的上游的内壁周围形成的着陆座（32）形成有多个凹部（5B）。着陆座（32）和凹槽（58）之间的内壁的区域具有一系列锥形和水平面。工具（20）包括一个从一端延伸的可滑动支架（176），在安装和检索期间，钻头段（22）围绕该保持位延伸。钻头段（22）通过弹性带（198）保持在托架周围的适当位置。当钻头段被锁定到驱动副（18）时，插入件（24）在一端处设置有一系列键槽（218），其位于钻头段（22）之上。插入件（24）总是保持在驱动副（18）内。位段（22）由工具（20）承载到驱动器副（18）并由插入件（24）锁定就位。然后可以撤回工具（20），钻头（12）以正常方式操作。为了接收钻头段（22），工具（20）被倒入钻头中，然后退出短距离以缩回插入件（24），使得钻头段（22）折回到支架（176）上，并且可以然后从钻机（12）中取出。

5. 发明授权

US5361859A Expandable gage bit for drilling and method of drilling 失效
标题翻译：用于钻孔的可扩展计量钻头和钻孔方法
公开(公告)号：US5361859A
公开(公告)日：1994-11-08
申请号：US17150
申请日：1993-02-12
申请人： Gordon A. Tibbitts
发明人： Gordon A. Tibbitts
IPC分类号： E21B10/20 , E21B10/32 , E21B10/42 , E21B10/54 , E21B10/55 , E21B10/66 , E21B10/62
CPC分类号： E21B10/55 , E21B10/20 , E21B10/32 , E21B10/42 , E21B10/66
摘要： A drill bit for use with earth drilling equipment, the drill bit having a body and movable cutting members or blades variably positionable between a first position in which the diameter defined by the cutting members is generally equal to or less than the diameter of the drill bit body and a second position in which the diameter defined by the cutting members is greater than the diameter of the drill bit body. The second, expanded position is assumed by the cutting members when they are in contact with the bottom of a hole and are thereby urged upwardly relative to the bit body. The first, retracted position is assumed by the cutting members when the drill bit is being tripped into or out of the hole and, because the cutting members are essentially retracted relative to the bit body, the drill bit does not become jammed downhole. A fixed-blade adaptation of the invention is also contemplated.
摘要翻译：一种用于地球钻井设备的钻头，所述钻头具有主体和可变地定位在第一位置之间的可移动切割构件或刀片，其中由所述切割构件限定的直径通常等于或小于所述钻头的直径主体和第二位置，其中由切割构件限定的直径大于钻头体的直径。当切割构件与孔的底部接触并且因此相对于钻头体向上推动时，第二扩展位置由切割构件假定。当钻头进入或离开钻孔时，由切割构件假设第一个缩回位置，并且因为切割构件基本上相对于钻头体缩回，所以钻头不会在井下堵塞。也考虑了本发明的固定刀片适配。

6. 发明授权

US5113954A Excavation tool 失效
标题翻译：挖掘工具
公开(公告)号：US5113954A
公开(公告)日：1992-05-19
申请号：US660546
申请日：1991-02-25
申请人： Takeshi Hayashi , Shigeru Sato , Katsuaki Tsujimoto , Daishiro Miyazaki , Yoneo Hiwasa , Toshiki Ishimatsu
发明人： Takeshi Hayashi , Shigeru Sato , Katsuaki Tsujimoto , Daishiro Miyazaki , Yoneo Hiwasa , Toshiki Ishimatsu
IPC分类号： E21B10/32 , E21B10/56 , E21B10/66
CPC分类号： E21B10/66 , E21B10/327 , E21B10/56
摘要： An excavation tool, having a pair of insertion holes placed in the bottom surface of a device, which receives the impact force of a hammer and the rotational force of a hammer cylinder, at positions separated in a radial direction from the center of the device and symmetrical around this center as a center of rotation, also having block axles, one end of each of which is freely rotatably inserted into one of the insertion holes, and having blocks, which have a roughly semicircular shape with a diameter roughly equal to that of the device, into the lead end surfaces of which are set bits, and which have straight edge surfaces which are flat surfaces vertical with respect to the lead end surfaces, provided at the other end of the block axles and with the straight edge surfaces in mutual opposition; in an extended diameter state of the blocks, the blocks are moved in opposite directions along a radius of the device by rotating the blocks around the block axles, and the distance between the centers of the insertion holes provided in the bottom surface of the device and the center of this device is set at from 0.2 times the diameter of the bottom surface of the device to 0.3 times thereof.

7. 发明授权

US5009271A Drill assembly 失效
标题翻译：钻组件
公开(公告)号：US5009271A
公开(公告)日：1991-04-23
申请号：US552921
申请日：1990-07-16
申请人： Milan Maric , John I. Kulas
发明人： Milan Maric , John I. Kulas
IPC分类号： E21B7/20 , E21B10/32 , E21B10/38 , E21B10/40 , E21B10/56 , E21B10/66 , E21B17/07
CPC分类号： E21B10/327 , E21B10/38 , E21B10/40 , E21B10/56 , E21B10/66 , E21B17/076 , E21B7/208
摘要： Drill tools with eccentric bits for drilling a hole having a large diameter generally include a bit for swinging out to an eccentric position for drilling, and for swinging into a non-eccentric position for removal from a tubular casing. Relatively complicated structures are required for effecting bit movement, and it is often difficult to remove the bit for replacement or repair. A drill assembly offering a solution to both problems includes a mandrel for rotatable mounting in a tubular casing, a bit rotatably mounted in the mandrel, the bit and mandrel normally rotating together in one direction with the bit eccentric with respect to the mandrel, whereby the bit can bore a hole larger in diameter than the casing, a head on the bit for engaging a formation to stop rotation of the bit, shoulders on the bit and mandrel for retaining the bit in the eccentric drilling position, and inclined cam surface on the bit for engaging the bottom of the casing when the bit is moved upwardly to cause the bit to rotate in the other direction (opposite to the drilling direction) to a release position in which the bit is aligned with the casing for movement therethrough, and second shoulders on the mandrel and bit for limiting rotation of the bit to the release position. The shoulders on the mandrel and bit are in the forms of projections which overlap in the vertical direction, each projection defining approximately one-quarter of the cylinder for rotation between the bit extended and the bit retracted positions.
摘要翻译：用于钻出具有大直径的孔的偏心钻头的钻具通常包括用于摆动到用于钻孔的偏心位置的钻头，以及用于摆动到非偏心位置以从管状壳体移除。需要相对复杂的结构来实现钻头移动，并且通常难以将钻头移除以进行更换或维修。提供两个问题的解决方案的钻机组件包括用于可旋转地安装在管状壳体中的心轴，可旋转地安装在心轴中的钻头，通常在一个方向上一起旋转的钻头和心轴相对于心轴偏心的钻头，钻头可以钻一个直径大于套管的孔，钻头上的头部用于接合地层以停止钻头的旋转，钻头和心轴上的肩部将钻头保持在偏心钻孔位置，并且倾斜的凸轮表面当钻头向上移动以使钻头沿另一方向（与钻削方向相反）旋转到释放位置时，该钻头与壳体对准以便通过其移动，并且第二轴上的肩部和钻头用于限制钻头旋转到释放位置。心轴和钻头上的肩部处于垂直方向上重叠的突起的形式，每个突起限定了用于在钻头延伸位和钻头缩回位置之间旋转的缸的四分之一左右。

8. 发明授权

US4700789A Device to obtain ring-shaped cavities in the bottom of drilled holes made in any type of medium 失效
标题翻译：在任何类型的介质中制造的钻孔底部获得环形空腔的装置
公开(公告)号：US4700789A
公开(公告)日：1987-10-20
申请号：US845073
申请日：1986-03-19
申请人： Vicente S. Velasco
发明人： Vicente S. Velasco
IPC分类号： B23B35/00 , B23B41/00 , B23B41/06 , B23B51/00 , B28D1/14 , E21B10/32 , E21B10/66
CPC分类号： B23B51/0036
摘要： An apparatus for creating annular cavities in the bottom of drilled holes in any medium having a body, an axle within the body at one end and rotated by a conventional drill, a reamer secured to the axle at its other end, an inner part enveloping the axle and an outer part enveloping the inner part, both parts being eccentric and rotatable with respect to each other. Their respective eccentricities are such that when opposing each other in opposite directions, the axle is parallel to the outer part. Joint rotation of the parts causes the reamer to move in a planetary manner. The outer part may be held stationary or dragged along by the inner part for joint rotation. Channels are provided within the parts to the reamer to supply cooling water to the reamer and to remove waste material generated by the reamer.
摘要翻译：一种用于在任何具有主体的介质中的钻孔底部产生环形空腔的装置，其一端处于主体内并由常规钻头旋转的轴，在其另一端固定到该轴的扩孔机，轴和包围内部的外部部件，两个部件是偏心的并且可相对于彼此旋转。它们各自的偏心度使得当相反方向彼此相对时，该轴平行于外部部分。部件的联合旋转导致铰刀以行星方式移动。外部部分可以保持固定或者被内部部分拖动以进行联合旋转。将通道设置在扩孔器的部件内，以向铰刀提供冷却水并除去铰刀产生的废料。

9. 发明授权

US4651837A Downhole retrievable drill bit 失效
标题翻译：井下可回收钻头
公开(公告)号：US4651837A
公开(公告)日：1987-03-24
申请号：US615932
申请日：1984-05-31
申请人： Walter G. Mayfield
发明人： Walter G. Mayfield
IPC分类号： E21B10/64 , E21B4/00 , E21B10/66
CPC分类号： E21B4/00 , E21B10/66
摘要： A rotary well-drilling bit lowered through a drill string to a special orienting, positioning and aligning sub attached to the bottom of the drill string with the aid of mud pressure with the bit approximately 90.degree. from its normal operating position. The drill bit is prepositioned before entering the drill string and utilizes a drill bit positioning means to properly orient and position the drill bit at the bottom of the borehole. Once properly positioned and oriented, a wireline attached motor turns an assembly shaft which raises the drill bit into its bit receptacle. Removal of the drill bit is accomplished by relowering the wireline attached motor and turning the assembly shaft to loosen the shaft from the drill bit and raising the wireline, wireline motor, assembly shaft and drill bit through the drill string.
摘要翻译：旋转钻井钻头通过钻柱下降到特殊定向，定位和对准辅助钻柱的底部，借助于泥浆压力，该钻头与钻头的正常工作位置相差约90°。钻头在进入钻柱之前进行预定位，并利用钻头定位装置来正确地定位钻头位于钻孔底部的位置。一旦适当定位和定向，有线连接的电机转动组装轴，其将钻头升高到其钻头容器中。钻头的去除是通过对连接电缆的电机进行倒带并转动组件轴来从钻头松开轴并且通过钻柱将电缆，有线电动机，组装轴和钻头提升的方法实现的。

10. 发明授权

US4545443A Means for drilling 失效
标题翻译：钻井手段
公开(公告)号：US4545443A
公开(公告)日：1985-10-08
申请号：US493059
申请日：1983-06-10
申请人： Harry A. I. Wiredal
发明人： Harry A. I. Wiredal
IPC分类号： E21B7/20 , E21B10/38 , E21B10/66 , E21B21/00 , E21B10/26 , E21B1/02
CPC分类号： E21B10/327 , E21B10/38 , E21B10/40 , E21B10/66 , E21B21/00 , E21B7/20
摘要： Drilling means of the type having a pilot bit, a reamer and a guidemember mounted in the bottom end of the casing tube, and which transmits impacts to the casing. The guide member is snugly enclosed in the thickened mouth portion of the casing tube and has a plurality of channels which are segments of a spiral through which the drilling debris is discharged upwardly to the casing tube.
摘要翻译：该类型的钻孔装置具有安装在套管的底端中的导向钻头，铰刀和引导件，并将冲击传递到壳体。引导构件紧密地封闭在套管的增稠口部分中，并且具有多个通道，这些通道是螺旋段，钻屑通过该通道向上排放到套管。

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