公开(公告)号：US20090057030A1

公开(公告)日：2009-03-05

申请号：US12193463

申请日：2008-08-18

Applicant: Roger Didericksen ,  S. Ravi Teja ,  Irrinki Rangayya Naidu

Inventor： Roger Didericksen ,  S. Ravi Teja ,  Irrinki Rangayya Naidu

IPC: E21B10/00 ,  B21K5/04

CPC classification number: E21B10/54

Abstract: A mining bit includes a bit body having a central axis, the bit body having a forward portion with faceted surfaces and a rearward attachment portion. The mining bit further includes a plurality of wings extending from the faceted surfaces of the bit body and arranged about a central hub. A plurality of cutting elements are disposed on distal ends of the wings.

Abstract translation: 采矿钻头包括具有中心轴线的钻头本体，钻头体具有带有多面的表面的前部部分和后部附接部分。 采矿钻头还包括从钻头体的多面延伸并围绕中心毂布置的多个翼。 多个切割元件设置在翼的远端。

公开(公告)号：US06679342B2

公开(公告)日：2004-01-20

申请号：US10214020

申请日：2002-08-07

Applicant: Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert Denton ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau

Inventor： Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert Denton ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau

IPC: E21B1000

CPC classification number: E21B10/25 ,  F16C21/00 ,  F16C33/7836 ,  F16C33/7896 ,  F16C2352/00 ,  Y10S277/928

Abstract: A drill bit for use in a borehole at least partially containing drilling fluid includes a bit body having at least two bit components, including at least one leg, the leg having a journal segment, and a roller cone rotatably mounted upon the journal segment and forming at least one bearing cavity therebetween. Also included is an annular primary seal disposed between the leg and the roller cone, an annular secondary seal disposed between the leg and the roller cone and between the annular primary seal and the borehole and an annular space disposed between the annular primary seal and the annular secondary seal, the annular space at least partially containing fluid and being in substantially absolute fluid isolation from the bearing cavity and a conduit for permitting the flow of fluid from the annular space to the borehole. The annular secondary seal may be primarily elastomeric and a passage for permitting the flow of fluid may further permit the flow of fluid from the borehole to the annular space. The annular space may at least partially include a grease possessing a water washout value of under approximately 50% per ASTM D-4049 water spray test for lubrication characteristics and the grease may include a polymer tackifier of between approximately 1% and approximately 5% by weight.

Abstract translation: 用于至少部分地包含钻井流体的钻孔中的钻头包括具有至少两个钻头部件的钻头体，所述钻头体包括至少一个腿部，所述腿部具有轴颈部分，以及可旋转地安装在所述轴颈部段上并形成 其间具有至少一个轴承腔。 还包括设置在腿和辊锥之间的环形主密封件，设置在腿和辊锥之间以及环形主密封件和钻孔之间的环形次级密封件，以及设置在环形主密封件和环形主密封件之间的环形空间 第二密封件，至少部分地包含流体并且与轴承腔基本上绝对的流体隔离的环形空间和用于允许流体从环形空间流到钻孔的导管。 环形二次密封件可以主要是弹性体，并且用于允许流体流动的通道可以进一步允许流体从钻孔流到环形空间。 环形空间可以至少部分地包括具有低于大约50％的水冲洗值的润滑脂，其根据ASTM D-4049喷水试验进行润滑特性，并且润滑脂可以包括约1重量％和约5重量％之间的聚合物增粘剂 。

公开(公告)号：US06264367B1

公开(公告)日：2001-07-24

申请号：US09411427

申请日：1999-10-01

Applicant: Robert H. Slaughter, Jr. ,  Roger Didericksen

Inventor： Robert H. Slaughter, Jr. ,  Roger Didericksen

IPC: E21B1022

CPC classification number: E21B10/25

Abstract: A drill bit for use in an earthen annulus that contains loose particles is connected to a fluid supply source and includes a bit body having at least one journal segment and at least one fluid conduit in fluid communication with the fluid supply source. A roller cone is rotatably mounted upon the journal segment and forms at least one bearing cavity therebetween. Annular primary and secondary seals are disposed between the roller cone and the bit body and between the bearing cavity and the earthen annulus. An air groove is provided around at least a portion of the cone or leg between the primary seal and the earthen annulus. The groove circumscribes less than the entire circumference of the groove or leg, and in preferred embodiments includes an exit port and/or a diversion plug. Both the exit port and the diversion plug help prevent the groove from becoming plugged with debris.

Abstract translation: 用于含有松散颗粒的土体环的钻头连接到流体供应源，并且包括具有至少一个轴颈段的钻头体和与流体供应源流体连通的至少一个流体导管。 辊筒可旋转地安装在轴颈段上，并在其间形成至少一个轴承腔。 环形主密封件和次密封件设置在辊锥体和钻头体之间以及轴承腔和土体环之间。 在主密封件和土体环之间的锥体或腿部的至少一部分周围设置有空气槽。 凹槽围绕凹槽或腿的整个圆周限制，并且在优选实施例中包括出口和/或分流塞。 出口和分流塞都有助于防止凹槽堵塞。

公开(公告)号：US06206110B1

公开(公告)日：2001-03-27

申请号：US09487947

申请日：2000-01-18

Applicant: Robert H. Slaughter, Jr. ,  Peter T. Cariveau ,  Kirk A. Norris ,  Roger Didericksen ,  William M. Conn

Inventor： Robert H. Slaughter, Jr. ,  Peter T. Cariveau ,  Kirk A. Norris ,  Roger Didericksen ,  William M. Conn

IPC: E21B1024

CPC classification number: E21B10/003 ,  E21B10/18 ,  E21B10/24

Abstract: A rotary cone rock bit, comprises a bit body including a plurality of legs extending therefrom, each of the legs having an outer surface that includes a leading surface and a trailing surface, a roller cone rotatably supported on each of the legs, a bearing system between each cone and the leg on which it is supported, and a lubricant reservoir in fluid communication with the bearing system. The reservoir can be provided with a wear resistant plug, if desired. In the present bit, the reservoir can be pressured-balanced with fluid in the bit plenum or the borehole annulus, or maintained at some desired differential with respect to either of these. Alternatively, the reservoir can be formed inside the bit body, preferably by means of a canister, which can be provided with venting means as desired.

Abstract translation: 一种旋转锥形岩石钻头，包括一个钻头体，其包括从其延伸的多个腿，每个腿具有包括前表面和后表面的外表面，可旋转地支撑在每个腿上的滚子圆锥体，轴承系统 在每个锥体和其所支撑的腿部之间，以及与轴承系统流体连通的润滑剂储存器。 如果需要，储存器可以设置有耐磨塞。 在现在的位，储存器可以与钻头压力室或钻孔环中的流体进行加压平衡，或者相对于这些中的任何一个保持在某种所需的差别。 或者，储存器可以形成在钻头体内，优选地通过罐，其可以根据需要设置有排气装置。

公开(公告)号：US06196339B1

公开(公告)日：2001-03-06

申请号：US09201614

申请日：1998-11-30

Applicant: Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau ,  Robert Denton

Inventor： Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau ,  Robert Denton

IPC: E21B1000

CPC classification number: E21B10/25 ,  F16C21/00 ,  F16C33/7836 ,  F16C33/7896 ,  F16C2352/00 ,  Y10S277/928

Abstract: A drill bit for use in a borehole at least partially containing drilling fluid includes a bit body having at least two bit components, including at least one leg, the leg having a journal segment, and a roller cone rotatably mounted upon the journal segment and forming at least one bearing cavity therebetween. Also included is an annular primary seal disposed between the leg and the roller cone and an annular secondary seal disposed between the leg and the roller cone and between the annular primary seal and the borehole. An annular space is defined between the annular primary seal and the annular secondary seal, the annular space at least partially containing fluid and being in substantially absolute fluid isolation from the bearing cavity. The seals are configured to allow the passage of a fluid from the annular space to the borehole. The annular secondary seal may be primarily elastomeric and a passage for fluid from the borehole to the annular space can be included. The annular space may at least partially include a grease possessing a water washout value of under approximately 50% per ASTM D-4049 water spray test for lubrication characteristics and the grease may include a polymer tackifier of between approximately 1% and approximately 5% by weight.

Abstract translation: 用于至少部分地包含钻井流体的钻孔中的钻头包括具有至少两个钻头部件的钻头体，所述钻头体包括至少一个腿部，所述腿部具有轴颈部分，以及可旋转地安装在所述轴颈部段上并形成 其间具有至少一个轴承腔。 还包括设置在腿部和滚子锥体之间的环形主密封件以及设置在腿部和滚子锥体之间以及环形主密封件和钻孔之间的环形副密封件。 环形空间限定在环形主密封件和环形二次密封件之间，环形空间至少部分地包含流体并且与轴承腔基本上绝对的流体隔离。 密封件构造成允许流体从环形空间通向钻孔。 环形二次密封件可以主要是弹性体，并且可以包括用于从钻孔到环形空间的流体的通道。 环形空间可以至少部分地包括具有低于大约50％的水冲洗值的润滑脂，其根据ASTM D-4049喷水试验进行润滑特性，并且润滑脂可以包括约1重量％和约5重量％之间的聚合物增粘剂 。

公开(公告)号：US06196338B1

公开(公告)日：2001-03-06

申请号：US09235257

申请日：1999-01-22

Applicant: Robert Slaughter ,  Roger Didericksen

Inventor： Robert Slaughter ,  Roger Didericksen

IPC: E21B1046

CPC classification number: E21B10/52

Abstract: A method of manufacturing a rolling cone with hard-facing coating for use in drilling boreholes is disclosed. The method includes a step of depositing a layer of hardfacing material by an arc process, e.g., a gas-shielding tungsten arc welding process, a plasma-transferred arc welding process, or a metal inert gas arc welding process, over areas susceptible to erosion on the rolling cone surface. A rolling cone rock bit for drilling boreholes with a layer of hardfacing material deposited by an arc process either on the lands or in grooves or both of the cone surface is provided. Furthermore, a cone for attachment to the bit body of a rock bit with a layer of hardfacing material deposited on selected lands or in selected grooves or both of the cone surface also is provided.

Abstract translation: 公开了一种制造用于钻孔的具有硬面涂层的滚动锥体的方法。 该方法包括通过电弧工艺（例如，气体屏蔽钨电弧焊接工艺，等离子体转移电弧焊接工艺或金属惰性气体电弧焊接工艺）在易受侵蚀的区域上沉积硬化材料层的步骤 在滚动锥面上。 提供了一种用于钻孔的滚动锥形钻头，其具有通过电弧工艺沉积在平台上或凹槽中或两个锥形表面中的表面硬化材料层。 此外，还提供了一种用于连接到具有沉积在选定的平台上或选定的凹槽中的硬质材料层的岩石钻头体的锥体，或锥形表面的两者。

公开(公告)号：US6123337A

公开(公告)日：2000-09-26

申请号：US980917

申请日：1997-12-01

Applicant: Zhigang Fang ,  Sujian Huang ,  Chris E. Cawthorne ,  Brian A. James ,  G. Steve Kyker ,  Robert Denton ,  Roger Didericksen

Inventor： Zhigang Fang ,  Sujian Huang ,  Chris E. Cawthorne ,  Brian A. James ,  G. Steve Kyker ,  Robert Denton ,  Roger Didericksen

IPC: E21B10/22 ,  E21B10/25 ,  F16J15/16 ,  E21B33/10

CPC classification number: E21B10/25 ,  Y10S277/91 ,  Y10S277/936 ,  Y10S277/944

Abstract: A high performance rock bit journal seal is formed from a composite material comprising an elastomeric material and a nonelastomeric polymeric material. The polymeric material is preferably in the form of fibers compiled or woven into a sheet. The elastomeric material may include one or more lubricant additives. The composite seal material comprises a number of repeating sheets of polymeric fabric that are bonded together with the elastomeric material. The seal can either be formed entirely of the composite seal material or partially of the composite material, in which case it is preferred that the seal wear or dynamic surface be formed from the composite material and the remaining portion of the seal be formed from an elastomeric material. The seal can be used as a primary journal seal, or as a secondary journal seal in a dual seal bit. Seals formed from the composite seal material display enhanced wear resistance, reduced coefficient of friction, and improved high-temperature stability and endurance when compared to noncomposite seal materials, thereby both extending the useful life of seals formed therefrom formed and of rock bits that employ such seals.

Abstract translation: 高性能岩石钻头密封件由包括弹性体材料和非弹性聚合材料的复合材料形成。 聚合物材料优选为编织或织成片材的纤维的形式。 弹性体材料可以包括一种或多种润滑剂添加剂。 复合密封材料包括与弹性体材料结合在一起的多个聚合物织物的重复片材。 密封件可以完全由复合密封材料或复合材料部分地形成，在这种情况下，优选的是，密封件磨损或动态表面由复合材料形成，并且密封件的剩余部分由弹性体形成 材料。 密封件可用作主轴颈密封件，也可用作双密封钻头中的次级密封件。 与复合密封材料相比，由复合密封材料形成的密封件显示出增强的耐磨性，降低的摩擦系数和改善的高温稳定性和耐久性，从而延长了由其形成的密封件的使用寿命和使用这种密封材料的岩石钻头 海豹

公开(公告)号：US6116357A

公开(公告)日：2000-09-12

申请号：US925700

申请日：1997-09-09

Applicant: Robert Wagoner ,  Roger Didericksen ,  William M. Conn ,  Peter Thomas Cariveau

Inventor： Robert Wagoner ,  Roger Didericksen ,  William M. Conn ,  Peter Thomas Cariveau

IPC: E21B10/00 ,  E21B10/18 ,  E21B10/24 ,  E21B10/22

CPC classification number: E21B10/18 ,  E21B10/003 ,  E21B10/24

Abstract: A drill bit for boring a bore hole in an earthen formation comprises: a bit body having a pin end, a cutting end and a longitudinal bit axis and including at least two legs extending from the cutting end, each of the legs including a bearing that rotatably supports a cutter cone. The bit body further includes a fluid flow system, including a flowway in said pin end that is in fluid communication with at least one exit port in the cutting end, the exit port being defined by a nozzle boss and disposed adjacent one of the legs. Each of the legs includes a leading side surface, a trailing side surface, and a center panel, and at least one of said legs is asymmetric such that its trailing side surface is larger than its leading side surface. The present bit can also include a lubricant system that has its opening in the trailing side of the leg, and can further include various wear resistant coatings and inserts on its surface.

Abstract translation: 一种用于在土层中钻孔的钻头包括：具有销端，切割端和纵向钻头轴线并且包括从切割端延伸的至少两个腿的钻头体，每个腿包括轴承，所述轴承包括： 可旋转地支撑切割锥。 钻头体还包括流体流动系统，该流体流动系统包括在所述销端中的与所述切割端中的至少一个出口端口流体连通的流道，所述出口由喷嘴凸台限定并且邻近所述支腿设置。 每个腿包括前侧表面，后侧表面和中心面板，并且所述腿中的至少一个是不对称的，使得其后侧表面大于其前侧表面。 现在的位还可以包括在腿的后侧具有开口的润滑剂系统，并且还可以在其表面上包括各种耐磨涂层和插入物。

公开(公告)号：US5887981A

公开(公告)日：1999-03-30

申请号：US980935

申请日：1997-12-01

Applicant: Robert H. Slaughter, Jr. ,  Peter Cariveau ,  Roger Didericksen

Inventor： Robert H. Slaughter, Jr. ,  Peter Cariveau ,  Roger Didericksen

IPC: E21B10/22 ,  E21B10/25 ,  F16C33/72

CPC classification number: E21B10/25 ,  F16C19/49 ,  F16C19/54 ,  F16C33/78 ,  F16C2352/00

Abstract: A drill bit for use in an earthen annulus that contains loose particles is connected to a fluid supply source and includes a bit body having at least one journal segment and at least one fluid conduit in fluid communication with the fluid supply source. A roller cone is rotatably mounted upon the journal segment and forms at least one bearing cavity therebetween. An annular primary seal is disposed between the roller cone and the bit body and between the bearing cavity and the earthen annulus, and an annular gap is disposed between the annular primary seal and the earthen annulus. The annular gap is in fluid communication with the fluid conduit and the earthen annulus. An annular secondary seal is disposed between the annular primary seal and the earthen annulus and is capable of substantially preventing the ingress of debris from the earthen annulus to the annular primary seal.

Abstract translation: 用于含有松散颗粒的土体环的钻头连接到流体供应源，并且包括具有至少一个轴颈段的钻头体和与流体供应源流体连通的至少一个流体导管。 辊筒可旋转地安装在轴颈段上，并在其间形成至少一个轴承腔。 环形主密封件设置在辊锥体和钻头体之间以及轴承腔和土体环之间，并且环形间隙设置在环形主密封件和土层环之间。 环形间隙与流体导管和土层环流体连通。 环形二次密封件设置在环形主密封件和土层环之间，并且能够基本上防止碎屑从土层环进入环形主密封件。

公开(公告)号：US06695079B2

公开(公告)日：2004-02-24

申请号：US10100100

申请日：2002-03-18

Applicant: Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau ,  Robert Denton

Inventor： Gary Ray Portwood ,  Chris Edward Cawthorne ,  Robert H. Slaughter, Jr. ,  Roger Didericksen ,  Peter Cariveau ,  Robert Denton

IPC: E21B1000

CPC classification number: E21B10/25 ,  F16C21/00 ,  F16C33/7836 ,  F16C33/7896 ,  F16C2352/00 ,  Y10S277/928

Abstract: A drill bit for use in a borehole at least partially containing drilling fluid includes a bit body having at least two bit components, including at least one leg, the leg having a journal segment, and a roller cone rotatably mounted upon the journal segment and forming at least one bearing cavity therebetween. Also included is an annular primary seal disposed between the leg and the roller cone, an annular secondary seal disposed between the leg and the roller cone and between the annular primary seal and the borehole and an annular space disposed between the annular primary seal and the annular secondary seal, the annular space at least partially containing fluid and being in substantially absolute fluid isolation from the bearing cavity and a conduit for permitting the flow of fluid from the annular space to the borehole. The annular secondary seal may be primarily elastomeric and the means for permitting the flow of fluid may further permit the flow of fluid from the borehole to the annular space. The annular space may at least partially include a grease possessing a water washout value of under approximately 50% per ASTM D-4049 water spray test for lubrication characteristics and the grease may include a polymer tackifier of between approximately 1% and approximately 5% by weight.

Abstract translation: 用于至少部分地包含钻井流体的钻孔中的钻头包括具有至少两个钻头部件的钻头体，所述钻头体包括至少一个腿部，所述腿部具有轴颈部分，以及可旋转地安装在所述轴颈部段上并形成 其间具有至少一个轴承腔。 还包括设置在腿和辊锥之间的环形主密封件，设置在腿和辊锥之间以及环形主密封件和钻孔之间的环形次级密封件，以及设置在环形主密封件和环形主密封件之间的环形空间 第二密封件，至少部分地包含流体并且与轴承腔基本上绝对的流体隔离的环形空间和用于允许流体从环形空间流到钻孔的导管。 环形二次密封件可以主要是弹性体，并且用于允许流体流动的装置还可以允许流体从钻孔流到环形空间。 环形空间可以至少部分地包括具有低于大约50％的水冲洗值的润滑脂，其根据ASTM D-4049喷水试验进行润滑特性，并且润滑脂可以包括约1重量％和约5重量％之间的聚合物增粘剂 。