公开(公告)号：US08353371B2

公开(公告)日：2013-01-15

申请号：US12626139

申请日：2009-11-25

申请人： Craig H. Cooley ,  Jair J. Gonzalez

发明人： Craig H. Cooley ,  Jair J. Gonzalez

IPC分类号： E21B10/36 ,  E21B10/42

CPC分类号： E21B10/567 ,  B24D3/008 ,  B24D99/005 ,  C04B35/528 ,  C04B2235/3847 ,  C04B2237/36 ,  C04B2237/363 ,  C04B2237/555 ,  C04B2237/58 ,  C04B2237/62 ,  C04B2237/70 ,  C04B2237/76 ,  E21B10/46 ,  E21B10/5735 ,  Y10T428/24488 ,  Y10T428/24496 ,  Y10T428/24545

摘要： In various embodiments, a polycrystalline diamond compact (“PDC”) comprises a substrate including an interfacial surface having a raised region. The PDC comprises a polycrystalline diamond (“PCD”) table bonded to the interfacial surface of the substrate. The PCD table defines an upper surface and exhibits a thickness over the raised region. The PCD table includes a plurality of bonded diamond grains defining a plurality of interstitial regions. A first region of the PCD table adjacent to the substrate includes metal-solvent catalyst disposed interstitially between the bonded diamond grains thereof, and a leached second region of the PCD table extends inwardly from the upper surface. The interstitial regions of the leached second region are depleted of metal-solvent catalyst. The geometry of the PCD table and raised region may be selected so that residual compressive stresses therein are retained to a sufficient level after leaching to provide a damage tolerant/thermally-stable PCD table.

摘要翻译： 在各种实施例中，多晶金刚石复合体（PDC）包括包括具有凸起区域的界面的基底。 PDC包括结合到衬底的界面表面的多晶金刚石（PCD）工作台。 PCD表定义了上表面，并且在凸起区域上表现出厚度。 PCD表包括限定多个间隙区域的多个结合金刚石晶粒。 与基板相邻的PCD台的第一区域包括在其结合的金刚石晶粒之间间隙地设置的金属溶剂催化剂，并且PCD台的浸出的第二区域从上表面向内延伸。 浸出的第二区域的间隙区域耗尽金属 - 溶剂催化剂。 可以选择PCD表和凸起区域的几何形状，使得其中的残余压缩应力在浸出之后保持在足够的水平以提供耐损伤/热稳定的PCD表。

公开(公告)号：US08277124B2

公开(公告)日：2012-10-02

申请号：US12394489

申请日：2009-02-27

申请人： Timothy N. Sexton ,  Craig H. Cooley

发明人： Timothy N. Sexton ,  Craig H. Cooley

IPC分类号： F16C31/00 ,  F16C33/00 ,  F16C33/02 ,  F16C33/18 ,  F16C17/04

CPC分类号： F16C33/108 ,  E21B4/003 ,  F16C17/04 ,  F16C33/043 ,  F16C33/26 ,  F16C2352/00

摘要： In an embodiment, a bearing apparatus comprises a first bearing assembly including a plurality of circumferentially-spaced first bearing elements each of which includes a first bearing surface. The bearing apparatus further includes a second bearing assembly including a plurality of circumferentially-spaced second bearing elements each of which includes a second bearing surface oriented to engage the first bearing surfaces of the first bearing assembly during operation. At least one of the second bearing elements may be circumferentially spaced from an adjacent one of the second bearing elements by a lateral spacing greater than a lateral dimension of the at least one of the second bearing elements.

摘要翻译： 在一个实施例中，轴承装置包括第一轴承组件，其包括多个周向间隔开的第一轴承元件，每个轴承元件包括第一支承表面。 轴承装置还包括第二轴承组件，其包括多个周向间隔开的第二轴承元件，每个第二轴承元件包括在操作期间定向成与第一轴承组件的第一支承表面接合的第二轴承表面。 第二轴承元件中的至少一个可以与第二轴承元件中的相邻的一个圆周间隔开大于第二轴承元件中的至少一个的横向尺寸的横向间隔。

公开(公告)号：US20120234609A1

公开(公告)日：2012-09-20

申请号：US13487541

申请日：2012-06-04

申请人： Craig H. Cooley ,  Timothy N. Sexton ,  S. Barrett Peterson ,  Jeffrey Lund ,  Christopher F. Johnson

发明人： Craig H. Cooley ,  Timothy N. Sexton ,  S. Barrett Peterson ,  Jeffrey Lund ,  Christopher F. Johnson

IPC分类号： E21B10/46 ,  E21B10/36

CPC分类号： E21B10/42 ,  B23B27/12 ,  E21B10/08 ,  E21B10/55 ,  E21B10/567 ,  E21B10/62 ,  E21B2010/545

摘要： A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.

公开(公告)号：US20120048622A1

公开(公告)日：2012-03-01

申请号：US13289871

申请日：2011-11-04

申请人： Craig H. Cooley ,  Timothy N. Sexton ,  S. Barrett Peterson ,  Jeffrey Lund ,  Christopher F. Johnson

发明人： Craig H. Cooley ,  Timothy N. Sexton ,  S. Barrett Peterson ,  Jeffrey Lund ,  Christopher F. Johnson

IPC分类号： E21B7/00

CPC分类号： E21B10/42 ,  B23B27/12 ,  E21B10/08 ,  E21B10/55 ,  E21B10/567 ,  E21B10/62 ,  E21B2010/545

摘要： A subterranean drilling system may include a drill string and a rotary drill bit coupled to the drill string. The rotary drill bit may include a bit body and a cutting element coupled to the bit body, with the cutting element being structured to rotate in response to torque applied to the cutting element. The system also may include a cam assembly coupled to the drill string, a cam follower assembly in contact with a cam surface of the cam assembly, and a torque-applying structure coupled to the cam follower assembly. The torque-applying structure may be configured to apply torque to the cutting element in response to relative rotation between the cam assembly and the cam follower assembly.

摘要翻译： 地下钻井系统可以包括钻柱和连接到钻柱的旋转钻头。 旋转钻头可以包括钻头体和联接到钻头体的切割元件，其中切割元件构造成响应于施加到切割元件的扭矩而旋转。 该系统还可以包括联接到钻柱的凸轮组件，与凸轮组件的凸轮表面接触的凸轮从动件组件和联接到凸轮从动件组件的扭矩施加结构。 扭矩施加结构可以被配置为响应于凸轮组件和凸轮从动件组件之间的相对旋转而向切割元件施加扭矩。

公开(公告)号：US08079431B1

公开(公告)日：2011-12-20

申请号：US12405585

申请日：2009-03-17

申请人： Craig H. Cooley ,  Jeffery B. Lund ,  Jair J. Gonzalez

发明人： Craig H. Cooley ,  Jeffery B. Lund ,  Jair J. Gonzalez

IPC分类号： E21B10/43

CPC分类号： E21B10/55 ,  E21B3/00 ,  E21B10/42 ,  E21B10/567 ,  E21B10/573 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633 ,  E21B2010/545

摘要： A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.

摘要翻译： 公开了一种旋转钻头。 旋转钻头可以包括钻头体，限定在钻头体中的切削槽，以及可旋转地联接到钻头体的切削元件。 切割元件可以至少部分地定位在切割凹槽内。 旋转钻头还可以包括与切割元件相邻的旋转诱导构件，用于引导切割元件相对于切割凹槽的旋转。 旋转诱导构件可以包括弹性构件或振动构件。 旋转钻头还可以包括从切割凹槽的内部邻近切割元件的外径延伸的突起。 还公开了一种钻井地层的方法。

公开(公告)号：US20110174547A1

公开(公告)日：2011-07-21

申请号：US12964208

申请日：2010-12-09

申请人： Timothy N. Sexton ,  Craig H. Cooley

发明人： Timothy N. Sexton ,  Craig H. Cooley

IPC分类号： F16C33/38 ,  H02K5/16

CPC分类号： F16C33/26 ,  F16C17/03 ,  F16C23/04 ,  F16C27/02 ,  F16C33/043 ,  F16C41/02 ,  F16C2352/00

摘要： Various embodiments of the present invention relate to bearing assemblies configured to accommodate non-uniform loading and misalignment with an adjacent bearing assembly. In one embodiment of the present invention, a bearing assembly for use in a subterranean drilling system is disclosed. The bearing assembly includes a support ring and a retention ring attached to the support ring, with the retention ring including a plurality of through holes. The bearing assembly includes a plurality of bearing elements each of which includes a superhard bearing surface. Each of the bearing elements is positioned in and extends from a corresponding through hole of the plurality of through holes. At least a number of the bearing elements are configured to restrict displacement through the corresponding through hole and away from the support ring. Further embodiments of the present invention are directed to a thrust-bearing apparatus, a radial bearing apparatus, and a downhole motor that incorporates disclosed thrust-bearing and radial bearing assemblies.

摘要翻译： 本发明的各种实施例涉及构造成适应与相邻轴承组件的不均匀加载和不对准的轴承组件。 在本发明的一个实施例中，公开了一种用于地下钻井系统的轴承组件。 轴承组件包括支撑环和附接到支撑环的保持环，保持环包括多个通孔。 轴承组件包括多个轴承元件，每个轴承元件包括超硬轴承表面。 每个轴承元件定位在多个通孔的对应的通孔中并从其延伸。 至少多个轴承元件构造成限制通过相应的通孔并远离支撑环的位移。 本发明的另外的实施例涉及一种包括所公开的推力轴承和径向轴承组件的推力轴承装置，径向轴承装置和井下电动机。

公开(公告)号：US20110174544A1

公开(公告)日：2011-07-21

申请号：US12761535

申请日：2010-04-16

申请人： Shawn C. Scott ,  Jeffrey A. Johns ,  Timothy N. Sexton ,  Craig H. Cooley

发明人： Shawn C. Scott ,  Jeffrey A. Johns ,  Timothy N. Sexton ,  Craig H. Cooley

IPC分类号： E21B4/00 ,  F16C33/00 ,  F16C17/04 ,  B23P6/00

CPC分类号： E21B4/003 ,  F16C17/02 ,  F16C17/04 ,  F16C33/043 ,  F16C33/108 ,  F16C33/26 ,  F16C43/02 ,  F16C2206/04 ,  F16C2352/00 ,  Y10T29/49718

摘要： Various embodiments relate to bearing assemblies configured to enable removal and replacement of superhard bearing elements, and bearing apparatuses that may utilize such bearing assemblies. The disclosed bearing assemblies may be used in a number of applications, such as downhole motors in subterranean drilling systems, directional drilling systems, roller-cone drill bits, and many other applications. In an embodiment, a bearing assembly includes a support ring and a retention ring assembled with the support ring. The retention ring includes a plurality of through holes. The bearing assembly further includes a plurality of superhard bearing elements, with each superhard bearing element inserted partially through and projecting from a corresponding one of the through holes of the retention ring. The retention ring and each superhard bearing element are collectively configured to restrict displacement of each superhard bearing element beyond a selected position in a direction away from the support ring.

摘要翻译： 各种实施例涉及构造成能够移除和更换超硬轴承元件的轴承组件以及可以利用这种轴承组件的轴承装置。 所公开的轴承组件可用于许多应用中，例如地下钻井系统中的井下电机，定向钻井系统，滚子钻头钻头以及许多其它应用。 在一个实施例中，轴承组件包括支撑环和与支撑环组装的保持环。 保持环包括多个通孔。 轴承组件还包括多个超硬轴承元件，其中每个超硬轴承元件部分地插入并从保持环的相应的一个通孔突出。 保持环和每个超硬轴承元件共同构造成限制每个超硬轴承元件在远离支撑环的方向超出选定位置的位移。

公开(公告)号：US20100218995A1

公开(公告)日：2010-09-02

申请号：US12394489

申请日：2009-02-27

申请人： Timothy N. Sexton ,  Craig H. Cooley

发明人： Timothy N. Sexton ,  Craig H. Cooley

IPC分类号： E21B7/00 ,  F16C17/04 ,  E21B4/00

CPC分类号： F16C33/108 ,  E21B4/003 ,  F16C17/04 ,  F16C33/043 ,  F16C33/26 ,  F16C2352/00

摘要： In an embodiment, a bearing apparatus comprises a first bearing assembly including a plurality of circumferentially-spaced first bearing elements each of which includes a first bearing surface. The bearing apparatus further includes a second bearing assembly including a plurality of circumferentially-spaced second bearing elements each of which includes a second bearing surface oriented to engage the first bearing surfaces of the first bearing assembly during operation. At least one of the second bearing elements may be circumferentially spaced from an adjacent one of the second bearing elements by a lateral spacing greater than a lateral dimension of the at least one of the second bearing elements.

摘要翻译： 在一个实施例中，轴承装置包括第一轴承组件，其包括多个周向间隔开的第一轴承元件，每个轴承元件包括第一支承表面。 轴承装置还包括第二轴承组件，其包括多个周向间隔开的第二轴承元件，每个第二轴承元件包括在操作期间定向成与第一轴承组件的第一支承表面接合的第二轴承表面。 第二轴承元件中的至少一个可以与第二轴承元件中的相邻的一个圆周间隔开大于第二轴承元件中的至少一个的横向尺寸的横向间隔。

公开(公告)号：US06527065B1

公开(公告)日：2003-03-04

申请号：US09650799

申请日：2000-08-30

申请人： Gordon A. Tibbitts ,  Craig H. Cooley

发明人： Gordon A. Tibbitts ,  Craig H. Cooley

IPC分类号： E21B1008

CPC分类号： E21B10/43 ,  E21B10/55 ,  E21B10/5673 ,  E21B10/5735 ,  E21B10/602

摘要： Cutting elements for use in a rotary drill bit are configured to facilitate positioning of the cutting elements at a positive rake angle with respect to the formation to enhance compressive stresses in the cutting element and to reduce cutting loads on the cutting elements. The cutting element generally comprises a three-dimensional superabrasive cutting member having a leading edge and a three-dimensional arcuate scoop-like surface which conveys formation cuttings away from the cutting element. The cutting element may also be formed to a substrate or backing. A drill bit suitable for use of the cutting elements of the invention is disclosed which includes passageways and internal fluid passages for enhancing the conveyance of formation cuttings away from the leading edge of the cutting element. A method of drilling earthen formations with a drill bit incorporating at least one cutting element comprising a three-dimensional superabrasive cutting member having a leading edge and a three-dimensional arcuate scoop-like surface which conveys formation cuttings away from the cutting element is also disclosed.

摘要翻译： 用于旋转钻头的切割元件构造成便于切割元件相对于地层以正向前角定位，以增强切割元件中的压缩应力并减少切割元件上的切割负载。 切割元件通常包括具有前缘和三维弓形勺状表面的三维超研磨切割构件，其将形成切屑传送离开切割元件。 切割元件也可以形成为基底或背衬。 公开了一种适于使用本发明的切割元件的钻头，其包括通道和内部流体通道，用于增强地层切屑远离切割元件的前缘的传送。 还公开了一种用钻头结合至少一个切割元件的钻头钻地层的方法，所述切割元件包括具有前缘的三维超研磨切割构件和将切割元件传送成形切割的三维弓形勺状表面 。

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。