公开(公告)号：US20100276209A1

公开(公告)日：2010-11-04

申请号：US12773164

申请日：2010-05-04

申请人： Zhou Yong ,  Sike Xia

发明人： Zhou Yong ,  Sike Xia

IPC分类号： E21B10/50 ,  E21B10/08 ,  B05D1/10

CPC分类号： E21B10/50 ,  B22F2998/00 ,  C22C29/02 ,  C22C29/14 ,  C22C29/16 ,  B22F2207/01 ,  B22F2207/11

摘要： A roller cone drill bit having a layer of wear resistant material applied thereon utilizing a thermal spray process and methods of manufacturing such drill bits.

摘要翻译： 一种具有使用热喷涂工艺施加在其上的耐磨材料层的辊锥钻头以及制造这种钻头的方法。

公开(公告)号：US20100236834A1

公开(公告)日：2010-09-23

申请号：US12728932

申请日：2010-03-22

申请人： Sike Xia ,  Zhou Yong

发明人： Sike Xia ,  Zhou Yong

IPC分类号： E21B10/46 ,  E21B10/50 ,  E21B10/55 ,  C04B35/56

CPC分类号： E21B10/50 ,  B22F2005/001 ,  C22C29/005 ,  C22C29/08

摘要： A hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a sintered carbide and a cast tungsten carbide, wherein the cast carbide is present in a quantity of at least 22% by weight, based on the total weight of the carbide phase, and the cast carbide comprises particles having sizes in the range of from 30 to 60 mesh. Also provided is a hardfacing composition comprising an iron-based binder alloy; and a carbide phase comprising a super dense sintered carbide and one or more additional carbide materials, wherein the super dense sintered carbide is present in a quantity of at least 10 percent by weight (% w), based on the total weight of the carbide phase, and comprises particles having sizes in the range of from 16 to 40 mesh. Included are methods of manufacturing such hardfacing compositions and downhole tools having such improved hardfacing compositions applied thereon.

摘要翻译： 包含铁基粘合剂合金的表面硬化组合物; 以及包含烧结碳化物和铸造碳化钨的碳化物相，其中所述铸碳化物以基于所述碳化物相的总重量为至少22重量％的量存在，并且所述铸造碳化物包括具有 范围从30到60目。 还提供了包含铁基粘合剂合金的硬化组合物; 和包含超密度烧结碳化物和一种或多种另外的碳化物材料的碳化物相，其中所述超致密烧结碳化物以基于碳化物相的总重量的至少10重量％（％w）的量存在 ，并且包含尺寸在16至40目范围内的颗粒。 包括制造这种表面硬化组合物的方法以及应用于其上的具有这种改进的耐硬化组合物的井下工具。

公开(公告)号：US07461708B2

公开(公告)日：2008-12-09

申请号：US10918993

申请日：2004-08-16

申请人： Zhou Yong ,  Sudarsanam Chellappa

发明人： Zhou Yong ,  Sudarsanam Chellappa

IPC分类号： E21B10/25 ,  E21B10/22

CPC分类号： E21B10/25

摘要： A drill bit and seal assembly therefor include a seal gland, an elastomeric sealing seal disposed in the seal gland and having a dynamic sealing surface and a static sealing surface, and at least one auxiliary elastomeric annular seal member disposed between the static sealing surface of the sealing seal and the seal gland. The auxiliary annular seal member serves to prevent relative movement of the sealing seal relative to the surfaces of the seal gland and to permit sealing seals of various cross-sections and shapes to adapt to and function with a conventionally sized and shaped gland. The auxiliary annular seal member is sized and configured and its material properties selected so as to impart the appropriate squeeze to the sealing seal to provide the desired contact pressure and footprint. Choice of the appropriate auxiliary seal member may permit the same sized seal to be employed in seal glands of differing sizes.

摘要翻译： 钻头及其密封组件包括密封压盖，设置在密封压盖中的弹性体密封密封件，并具有动态密封表面和静态密封表面，以及至少一个辅助弹性体环形密封件，其设置在 密封密封和密封盖。 辅助环形密封构件用于防止密封密封件相对于密封压盖表面的相对移动，并且允许密封各种横截面和形状的密封件，以适应常规尺寸和形状的压盖并与其功能相同。 辅助环形密封构件的尺寸和构造被选择，并且其材料特性被选择以便适当地挤压到密封密封件以提供期望的接触压力和占地面积。 选择适当的辅助密封构件可以允许在不同尺寸的密封压盖中使用相同尺寸的密封件。

公开(公告)号：US20080105467A1

公开(公告)日：2008-05-08

申请号：US11601029

申请日：2006-11-17

申请人： Zhou Yong ,  George B. Witman ,  Carlos Torres

发明人： Zhou Yong ,  George B. Witman ,  Carlos Torres

IPC分类号： E21B10/24

CPC分类号： E21B10/24

摘要： A rotary rock bit includes a lubricant reservoir with a pressure compensation assembly disposed therein. The pressure compensation assembly is adapted to permit selective adjustment of the relief pressure set by the assembly through the selective adjustment of one member in the assembly with respect to another member in the assembly.

摘要翻译： 旋转岩石钻头包括其中设置有压力补偿组件的润滑剂储存器。 压力补偿组件适于允许通过组合件中的一个构件相对于组件中的另一个构件的选择性调节来选择性地调整由组件设定的释放压力。

公开(公告)号：US07331410B2

公开(公告)日：2008-02-19

申请号：US10923653

申请日：2004-08-20

申请人： Zhou Yong ,  Jim Minikus ,  Armardeep Singh ,  Quan Nguyen ,  Sharath Kolachalam

发明人： Zhou Yong ,  Jim Minikus ,  Armardeep Singh ,  Quan Nguyen ,  Sharath Kolachalam

IPC分类号： E21B10/08

CPC分类号： E21B10/50 ,  E21B10/16

摘要： Disclosed are a variety of arcuate-shaped inserts for drill bits, and in particular, for placement in rolling cone cutters of drill bits. The arcuate inserts include 360° or ring-shaped inserts, as well as inserts of smaller arcuate length. The arcuate inserts are suitable for use in all surfaces of the rolling cone cutter, and in other locations in drill bits, and may have specialized cutting surfaces and material enhancements to enhance their cutting duty performance. Certain arcuate inserts may include stress relieving discontinuities such that, upon assembly into the cone or during drilling, the arcuate inserts may fragment in a controlled and predicted manner into shorter arcuate lengths.

摘要翻译： 公开了用于钻头的各种弧形插入件，特别地，用于放置在钻头的滚动锥形切割器中。 弧形刀片包括360°或环形刀片，以及较小弓形长度的刀片。 弧形插入件适用于滚动圆锥切割机的所有表面，以及钻头中的其他位置，并且可具有专门的切割表面和材料增强功能，以增强其切割性能。 某些弓形刀片可包括应力消除不连续性，使得在组装到锥体中或在钻孔期间，弓形刀片可以以受控和预测的方式分段成较短的弓形长度。

公开(公告)号：US20060065445A1

公开(公告)日：2006-03-30

申请号：US10951383

申请日：2004-09-28

申请人： Sudarsanam Chellappa ,  Zhou Yong

发明人： Sudarsanam Chellappa ,  Zhou Yong

IPC分类号： E21B10/00

CPC分类号： E21B10/25

摘要： Sealing arrangements for a rotary cone rock-bit comprising a leg extending from a bit body and a cone rotatably mounted to the leg. A seal is disposed radially between the cone and the leg. A footprint defines an area of contact between the seal and the leg. Compression of the seal generates a contact pressure between the seal and the leg. An axial centerline evenly bisects the footprint into a mud side and a grease side. A contact pressure profile defines the contact pressure over the footprint, wherein the contact pressure on the mud side of the footprint is greater than the contact pressure on the grease side of the footprint.

摘要翻译： 用于旋转锥形岩石钻头的密封装置，包括从钻头体延伸的腿部和可旋转地安装到腿部的锥体。 密封件径向设置在锥体和腿部之间。 足迹限定了密封和腿之间的接触面积。 密封件的压缩会在密封件和支腿之间产生接触压力。 轴向中心线将占地面积均匀分为泥浆侧和油脂边。 接触压力分布限定了占地面积上的接触压力，其中足迹的泥浆侧面上的接触压力大于占地面积的油脂侧面上的接触压力。

公开(公告)号：US06460636B1

公开(公告)日：2002-10-08

申请号：US09465631

申请日：1999-12-17

申请人： Zhou Yong ,  Suprant J. Huang ,  Nathan R. Anderson ,  J. Daniel Belnap ,  Chris E. Cawthorne ,  Ronald K. Eyre ,  Madapusi K. Keshavan ,  Per I. Nese ,  Michael A. Siracki ,  Gary R. Portwood

发明人： Zhou Yong ,  Suprant J. Huang ,  Nathan R. Anderson ,  J. Daniel Belnap ,  Chris E. Cawthorne ,  Ronald K. Eyre ,  Madapusi K. Keshavan ,  Per I. Nese ,  Michael A. Siracki ,  Gary R. Portwood

IPC分类号： E21B1046

CPC分类号： E21B10/5673 ,  E21B10/56 ,  E21B10/573 ,  E21B10/5735 ,  E21B17/1092

摘要： A cutter element for use in a drill bit, comprising a substrate and a cutting layer. The substrate comprises a grip portion and an extension portion, where the grip portion has an insert axis and an extension portion including an interface surface having a first apex. The cutting layer is affixed to the interface surface and has a cutting surface having a second apex. The cutting layer is shaped such that when a plane passing through the first apex and lying parallel to the insert axis and normal to a radius from the insert axis, the plane divides the cutting layer into major and minor portions and the major portion has a major volume that is at least 60 percent of the total volume of said cutting layer. Alternative embodiments of the present invention include variations wherein the first and second apices do not coincide and wherein the interface surface of the substrate is not axisymmetric. Using these variations, cutter elements having sizeable variations in thickness are constructed.

摘要翻译： 一种用于钻头的切割元件，包括基底和切割层。 基板包括握持部分和延伸部分，其中握持部分具有插入轴线和包括具有第一顶点的界面的延伸部分。 切割层固定在界面表面上并具有具有第二顶点的切割表面。 切割层被成形为使得当平面穿过第一顶点并且平行于插入轴线平行并且平行于插入轴线的半径时，该平面将切割层分成主要和次要部分，并且主要部分具有主要部分 体积为所述切割层的总体积的至少60％。 本发明的替代实施例包括其中第一和第二顶点不重合并且其中基底的界面不是轴对称的变型。 使用这些变型，构造了具有相当大的厚度变化的切割元件。

公开(公告)号：US09212523B2

公开(公告)日：2015-12-15

申请号：US13309389

申请日：2011-12-01

申请人： Zhou Yong ,  Weiqi Yin ,  Bradley J. Head

发明人： Zhou Yong ,  Weiqi Yin ,  Bradley J. Head

IPC分类号： E21B10/16 ,  E21B10/58

CPC分类号： E21B10/58 ,  E21B10/16

摘要： A drill bit configured for boring holes or wells into the earth, the drill bit having a face and a plurality of zones, the drill bit having geometrically sharp inserts located in an inner zone and non-geometrically sharp inserts located in an outer zone.

摘要翻译： 钻头，其构造成用于将孔或井钻入地球，所述钻头具有面和多个区域，所述钻头具有位于内部区域中的几何锋利的刀片和位于外部区域中的非几何锋利的刀片。

公开(公告)号：US08020638B2

公开(公告)日：2011-09-20

申请号：US11554141

申请日：2006-10-30

申请人： Sudarsanam Chellappa ,  Zhou Yong

发明人： Sudarsanam Chellappa ,  Zhou Yong

IPC分类号： E21B10/00 ,  E21B10/22

CPC分类号： E21B10/25

摘要： A seal assembly for sealing between a journal shaft and a rotating cone cutter of a drill bit. In an embodiment, the seal assembly comprises a seal gland positioned between the journal shaft and the cone cutter. In addition, the seal assembly comprises an annular seal body disposed about the journal shaft within an annular recess. The seal body comprises a dynamic sealing surface at its outer diameter D1 that forms a dynamic seal with the sealing surface of the recess and a static sealing surface at its inner diameter D2 that forms a static seal with an outer bearing surface of the journal shaft.

摘要翻译： 一种密封组件，用于密封轴颈轴和钻头的旋转圆锥切割器。 在一个实施例中，密封组件包括位于轴颈轴与锥形切割器之间的密封压盖。 此外，密封组件包括在环形凹部内围绕轴颈轴设置的环形密封体。 密封体包括在其外径D1处的动态密封表面，其形成与凹部的密封表面的动态密封件，以及在其内径D2处形成与轴颈轴的外部轴承表面的静态密封件的静态密封表面。

公开(公告)号：US07665547B2

公开(公告)日：2010-02-23

申请号：US11601029

申请日：2006-11-17

申请人： Zhou Yong ,  George B. Witman, IV ,  Carlos Torres

发明人： Zhou Yong ,  George B. Witman, IV ,  Carlos Torres

IPC分类号： E21B10/24

CPC分类号： E21B10/24

摘要： A rotary rock bit includes a lubricant reservoir with a pressure compensation assembly disposed therein. The pressure compensation assembly is adapted to permit selective adjustment of the relief pressure set by the assembly through the selective adjustment of one member in the assembly with respect to another member in the assembly.

摘要翻译： 旋转岩石钻头包括其中设置有压力补偿组件的润滑剂储存器。 压力补偿组件适于允许通过组合件中的一个构件相对于组件中的另一个构件的选择性调节来选择性地调整由组件设定的释放压力。