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1. 发明授权

US5906245A Mechanically locked drill bit components 失效
标题翻译：机械锁定钻头组件
公开(公告)号：US5906245A
公开(公告)日：1999-05-25
申请号：US955250
申请日：1997-10-21
申请人： Gordon A. Tibbitts , Paul E. Pastusek
发明人： Gordon A. Tibbitts , Paul E. Pastusek
IPC分类号： E21B10/56 , E21B10/567 , E21B10/573 , E21B10/60 , E21B10/61 , E21B10/62 , E21C13/00
CPC分类号： E21B10/5673 , E21B10/573 , E21B10/61 , E21B10/62
摘要： Mounting apparatus is described for locking an insertable stud cutter or slug cutter or fluid nozzle into a socket on a rotatable earth boring drill bit. The cutter may be readily removed and replaced without damaging either the cutter, nozzle or bit. Apparatus are shown for permitting or, alternatively, preventing rotation of the cutter or nozzle in its socket. The mounting apparatus is particularly applicable to cutters having a cutting disk of polycrystalline diamond or other superabrasive material mounted on a carbide supporting body, or carbide body nozzles or nozzles having a bore lined with such a material.
摘要翻译：描述的安装装置用于将可插入的螺柱切割器或块塞切割器或流体喷嘴锁定在可旋转的钻孔钻头上的插座中。切割器可以容易地移除和更换，而不损坏切割器，喷嘴或钻头。示出了允许或者可选地防止切割器或喷嘴在其插座中旋转的装置。安装装置特别适用于具有安装在碳化物支撑体上的多晶金刚石或其他超级磨料的切割盘的切割器，或具有衬有这种材料的孔的碳化物体喷嘴或喷嘴。

2. 发明授权

US5431239A Stud design for drill bit cutting element 失效
标题翻译：钻头切割元件的螺柱设计
公开(公告)号：US5431239A
公开(公告)日：1995-07-11
申请号：US44938
申请日：1993-04-08
申请人： Gordon A. Tibbitts , Craig H. Cooley , Redd H. Smith , Paul E. Pastusek , Ralph M. Horton
发明人： Gordon A. Tibbitts , Craig H. Cooley , Redd H. Smith , Paul E. Pastusek , Ralph M. Horton
IPC分类号： E21B10/56 , E21B10/567 , E21B10/46
CPC分类号： E21B10/567
摘要： An improved stud design for an earth boring drill bit is disclosed preferably using materials of different hardness and toughness layered to provide maximum resistance to surface abrasion coupled with excellent structural properties including high strength with maximum fracture toughness. The bit body is conventionally attached to a drill string, and has a crown and gage portion. The studs preferably include a core, made of steel or other material having high fracture toughness, covered at least in part with a hard, abrasion resistant material such as tungsten carbide. Each stud is secured to a socket in the bit body by means of brazing or other suitable means such as a press fit. The cutting element is brazed to a mounting face of the stud prior to affixation of the stud to the bit body and is preferably comprised of a polycrystalline diamond compact adhered to a backing layer of tungsten carbide.
摘要翻译：公开了一种用于钻孔钻头的改进的螺柱设计，其使用不同硬度和韧性的材料，其层压以提供对表面磨损的最大阻力，以及优异的结构特性，包括具有最大断裂韧性的高强度。钻头主体通常安装在钻柱上，并具有表冠和表面部分。螺柱优选地包括由钢或其他具有高断裂韧性的材料制成的芯，至少部分地用硬的耐磨材料（例如碳化钨）覆盖。每个螺柱通过钎焊或其他合适的方式如压配合固定在钻头体中的插座上。在将螺柱固定到钻头体之前，将切割元件钎焊到螺柱的安装面上，并且优选地由粘附到碳化钨背衬层的多晶金刚石块组成。

3. 发明授权

US5678645A Mechanically locked cutters and nozzles 失效
标题翻译：机械锁定刀具和喷嘴
公开(公告)号：US5678645A
公开(公告)日：1997-10-21
申请号：US557962
申请日：1995-11-13
申请人： Gordon A. Tibbitts , Paul E. Pastusek
发明人： Gordon A. Tibbitts , Paul E. Pastusek
IPC分类号： E21B10/56 , E21B10/567 , E21B10/573 , E21B10/60 , E21B10/61 , E21B10/62 , E21C13/00
CPC分类号： E21B10/5673 , E21B10/573 , E21B10/61 , E21B10/62
摘要： Mounting apparatus is described for locking an insertable stud cutter or slug cutter or fluid nozzle into a socket on a rotatable earth boring drill bit. The cutter may be readily removed and replaced without damaging either the cutter, nozzle or bit. Apparatus are shown for permitting, or alternatively, preventing rotation of the cutter or nozzle in its socket. The mounting apparatus is particularly applicable to cutters having a cutting disk of polycrystalline diamond or other superabrasive material mounted on a carbide supporting body, or carbide body nozzles or nozzles having a bore lined with such a material.
摘要翻译：描述的安装装置用于将可插入的螺柱切割器或块塞切割器或流体喷嘴锁定在可旋转的钻孔钻头上的插座中。切割器可以容易地移除和更换，而不损坏切割器，喷嘴或钻头。示出了允许或替代地防止切割器或喷嘴在其插座中旋转的装置。安装装置特别适用于具有安装在碳化物支撑体上的多晶金刚石或其他超级磨料的切割盘的切割器，或具有衬有这种材料的孔的碳化物体喷嘴或喷嘴。

4. 发明申请

US20090218098A1 Methods Of Using A Particle Impact Drilling System For Removing Near-Borehole Damage, Milling Objects In A Wellbore, Under Reaming, Coring, Perforating, Assisting Annular Flow, And Associated Methods 有权
标题翻译：使用颗粒冲击钻孔系统去除近井眼损伤的方法，在井眼中，在铰孔，取心，取心，穿孔，辅助环流和关联方法
公开(公告)号：US20090218098A1
公开(公告)日：2009-09-03
申请号：US12363022
申请日：2009-01-30
申请人： Gordon A. Tibbitts , Greg Galloway , Adrian Vuyk, JR. , James Terry
发明人： Gordon A. Tibbitts , Greg Galloway , Adrian Vuyk, JR. , James Terry
IPC分类号： E21B29/00 , E21B43/11 , E21B29/10 , E21B29/06 , E21B43/114 , E21B7/16 , E21B7/18 , E21B7/08 , E21B7/06 , E21B49/02
CPC分类号： E21B7/18 , E21B10/42 , E21B10/602 , E21B21/10
摘要： A particle impact drilling system and method are described. In several exemplary embodiments, the system and method may be a part of, and/or used with, an apparatus or system, methods, to excavate a subterranean formation. The system can including, for example, removing near-borehole damage, casing, window milling, fishing, drilling with casing, under reaming, coring, perforating, effective circulatory density management, assisted annular flow, and directional control. Embodiments of associated systems and methods are also included.
摘要翻译：描述了颗粒冲击钻井系统和方法。在几个示例性实施例中，系统和方法可以是用于挖掘地下地层的装置或系统的方法的一部分和/或与其一起使用。该系统可以包括例如去除近井眼损伤，套管，窗铣，钓鱼，用套管钻孔，扩孔，取芯，穿孔，有效循环密度管理，辅助环形流动和方向控制。还包括相关系统和方法的实施例。

5. 发明申请

US20090200080A1 Impact excavation system and method with particle separation 审中-公开
标题翻译：冲击挖掘系统及粒子分离方法
公开(公告)号：US20090200080A1
公开(公告)日：2009-08-13
申请号：US11801268
申请日：2007-05-09
申请人： Gordon A. Tibbitts , Paul O. Padgett , Nathan J. Harder , Adrian Vuyk, JR. , Gregory G. Galloway , Harry Curlett , Samuel Curlett
发明人： Gordon A. Tibbitts , Paul O. Padgett , Nathan J. Harder , Adrian Vuyk, JR. , Gregory G. Galloway , Harry Curlett , Samuel Curlett
IPC分类号： E21B7/18 , E21B7/16
CPC分类号： E21B7/16 , E21B7/18 , E21B10/42 , E21B10/54 , E21B10/602 , E21B21/065 , E21B21/10
摘要： A system and method for excavating a subterranean formation, according to which a suspension of liquid and a plurality of impactors are introduced into at least one cavity formed in a body member and are discharging from the cavity so that the impactors remove a portion of the formation. The impactors are separated from at least a portion of the fluid, and are passed to a conduit so that the impactors accumulate in the conduit before being removed from the conduit.
摘要翻译：一种用于挖掘地层的系统和方法，根据该系统和方法，将液体和多个冲击器的悬浮液引入到形成在主体构件中的至少一个空腔中，并且从空腔排出，使得冲击器移除一部分地层。冲击器与流体的至少一部分分离，并且被传递到导管，使得冲击器在从管道移除之前积聚在导管中。

6. 发明授权

US06450271B1 Surface modifications for rotary drill bits 有权
标题翻译：旋转钻头的表面修饰
公开(公告)号：US06450271B1
公开(公告)日：2002-09-17
申请号：US09621064
申请日：2000-07-21
申请人： Gordon A. Tibbitts , Danny E. Scott , James L. Overstreet , Terry J. Kolterman , Chih Lin , James Andy Oxford , Steven R. Radford
发明人： Gordon A. Tibbitts , Danny E. Scott , James L. Overstreet , Terry J. Kolterman , Chih Lin , James Andy Oxford , Steven R. Radford
IPC分类号： E21B1000
CPC分类号： E21B10/567 , E21B10/52 , E21B2010/566
摘要： A rotary-type drill bit for drilling subterranean formations having areas or components having surfaces exhibiting a relatively low adhesion, preferably nonwater-wettable, surface over at least a portion thereof.
摘要翻译：一种用于钻探地下地层的旋转式钻头，其具有在其至少一部分上具有相对较低粘附性，优选非水可润湿表面的表面的区域或部件。

7. 发明授权

US06298930B1 Drill bits with controlled cutter loading and depth of cut 有权
标题翻译：钻头具有受控的切割装载和切割深度
公开(公告)号：US06298930B1
公开(公告)日：2001-10-09
申请号：US09383228
申请日：1999-08-26
申请人： L. Allen Sinor , Wayne R. Hansen , Mark W. Dykstra , Craig H. Cooley , Gordon A. Tibbitts
发明人： L. Allen Sinor , Wayne R. Hansen , Mark W. Dykstra , Craig H. Cooley , Gordon A. Tibbitts
IPC分类号： E21B1046
CPC分类号： E21B10/43 , E21B10/573 , E21B2010/566
摘要： A rotary drag bit including exterior features to control the depth of cut by cutters mounted thereon, so as to control the volume of formation material cut per bit rotation as well as the torque experienced by the bit and an associated bottomhole assembly. The exterior features preferably precede, taken in the direction of bit rotation, cutters with which they are associated, and provide sufficient bearing area so as to support the bit against the bottom of the borehole under weight on bit without exceeding the compressive strength of the formation rock. The exterior features may be oriented and configured to function optimally at a predicted rate of penetration, or range of rates, at which the bit may be operated, such rate or rates being further optionally maximized in softer formations in light of the ability of the bit to hydraulically clear a maximum volume of formation cuttings to prevent so-called bit balling.
摘要翻译：一种旋转牵引钻头，包括外部特征以控制安装在其上的切割器的切割深度，以便控制每位旋转切割的成形材料的体积以及钻头和相关的井底组件所经历的扭矩。外部特征优选地在钻头旋转的方向，与它们相关联的切割器之前提供，并且提供足够的承载面积，以便在钻头的重量下支撑钻头的底部而不超过地层的抗压强度岩。外部特征可以被定向和配置为以预测的穿透速率或比特的运行范围最佳地起作用，这种速率或速率在软地层中进一步可选地根据钻头的能力而最大化以液压方式清除最大体积的地层切屑，以防止所谓的钻孔。

8. 发明授权

US5503236A Swivel/tilting bit crown for earth-boring drills 失效
标题翻译：用于钻孔钻头的旋转/倾斜钻头表冠
公开(公告)号：US5503236A
公开(公告)日：1996-04-02
申请号：US117214
申请日：1993-09-03
申请人： Gordon A. Tibbitts
发明人： Gordon A. Tibbitts
IPC分类号： E21B7/06 , E21B7/08 , E21B10/00 , E21B17/04 , E21B17/05 , E21B17/20 , F16D3/24 , F16D3/44 , E21B10/62
CPC分类号： E21B7/068 , E21B10/00 , E21B17/04 , E21B17/05 , E21B17/20 , E21B7/064 , F16D3/24 , F16D3/44
摘要： A drill bit for drilling subterranean formations includes a device to provide a "universal" effect between the shank and crown for self alignment of the crown with the bore hole in the formation. The bit is suitable for downhole assemblies configured for straight drilling, directional drilling and navigational drilling. The device can be incorporated into both drag bits and roller-type "rock" bits. Preferred embodiments include a flexible sub connecting the crown to the shank portion and having reduced stiffness relative to the drill string. Alternatively a spherical universal joint or trunnion type universal is used. Replaceable lugs increase durability and reliability of the universal. The device equalizes the loads on cutters while reducing wear, average loads, and impact loads on cutters. Bore hole diameter and chatter of the bit in the bore hole are reduced, promoting maximum efficiency and rate of penetration as wobble and precession are minimized.
摘要翻译：用于钻探地下地层的钻头包括在柄和冠之间提供“通用”效应的装置，用于使冠部与地层中的钻孔自对准。该钻头适用于直井钻井，定向钻井和导航钻井的井下组件。该装置可以并入拖曳位和滚子式“摇滚”位。优选实施例包括将冠部连接到柄部分并且相对于钻柱具有降低的刚度的柔性子部分。或者，使用球形万向接头或耳轴式通用型。可更换的凸耳增加了通用的耐用性和可靠性。该装置使刀具上的负载相等，同时减少刀具上的磨损，平均载荷和冲击载荷。钻孔中的钻孔直径和钻头的颤动减小，从而在摆动和进动最小化的同时提高最大效率和穿透速度。

9. 发明授权

US5435403A Cutting elements with enhanced stiffness and arrangements thereof on earth boring drill bits 失效
标题翻译：切削元件具有增强的刚度和布置在地球钻头上
公开(公告)号：US5435403A
公开(公告)日：1995-07-25
申请号：US164481
申请日：1993-12-09
申请人： Gordon A. Tibbitts
发明人： Gordon A. Tibbitts
IPC分类号： E21B10/42 , E21B10/43 , E21B10/54 , E21B10/55 , E21B10/56 , E21B10/567 , E21B10/573 , E21B10/60 , E21B10/46
CPC分类号： E21B10/43 , E21B10/55 , E21B10/567 , E21B10/5735 , E21B10/60
摘要： A cutting element having a substantially planar table of superhard material mounted on a substrate or backing. The superhard material table, the substrate, or an insert placed between those two components provides additional stiffness to the cutting element and resistance to bending and impact loading experienced by the cutting element when drilling a formation. The additional stiffness reduces fracture of the table of superhard material and, if the reinforcing member or portion is formed of an abrasion and erosion resistant material, the cutting element will wear linearly at a reduced rate due to the enhanced volume of such material. The thicker or reinforced portion of the cutting element extends linearly, and if the cutting element is circular, extends diametrically. Cooperative arrangements of such cutting elements are also disclosed.
摘要翻译：切割元件具有安装在基底或背衬上的基本平坦的超硬材料台。超硬材料台，基板或放置在这两个部件之间的插入件为切割元件提供了额外的刚度，并且在钻探地层时对切割元件所经受的弯曲和冲击载荷的抵抗力提供了额外的刚性。额外的刚度可以减少超硬材料台的断裂，如果加强件或部分由耐磨损和耐腐蚀材料形成，则由于这种材料的体积增大，切割元件将以降低的速度线性磨损。切割元件的较厚或加强部分线性延伸，如果切割元件是圆形的，则直径延伸。还公开了这种切割元件的协同布置。

10. 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。

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