公开(公告)号：CA2714749A1

公开(公告)日：2009-08-27

申请号：CA2714749

申请日：2009-02-17

Applicant: BAKER HUGHES INC

Inventor： DICK AARON ,  CURRY DAVID A ,  KOLTERMANN TERRY J ,  LIN CHIH ,  SCOTT DAN E ,  ZAHRADNIK ANTON ,  KIRWAN BRENDAN P

IPC: E21B10/48 ,  E21B10/02

Abstract: Downhole tool bearings are provided with diamond enhanced materials. The diamond enhanced materials comprise diamond grains in a matrix of tungsten or silicon carbide. A brazed diamond grit or diamond particles coated with a reactive braze may be utilized for bearing applications. Bearing rings formed at least in part with diamond enhanced material are installed on at least one of the bearing pin journal, the nose and the cone cavity. The bearing rings may be continuous rings or partial rings and attached to the journal pin or cone cavity. These may include thrust bearings, rollers, roller race, balls and ball races made of diamond enhanced material. These bearing surfaces also are formed at least in part with diamond enhanced material and attached to portions of the journal or cone bearing surfaces.

公开(公告)号：GB2392181B

公开(公告)日：2006-08-30

申请号：GB0319404

申请日：2003-08-19

Applicant: BAKER HUGHES INC

Inventor： SCOTT DANNY E ,  LIN CHIH ,  DICK AARON

IPC: E21B10/22 ,  E21B10/25 ,  F16J15/34

Abstract: An earth-boring bit has a seal assembly with a seal face having a DLC coating. The seal assembly locates between a bearing pin and a cone of the bit. The seal assembly has at least one rigid ring that rotates against a mating surface. The DLC coating is diamond-like carbon that may be coated by different processes onto either the ring, the mating surface, or both.

公开(公告)号：GB2392181A

公开(公告)日：2004-02-25

申请号：GB0319404

申请日：2003-08-19

Applicant: BAKER HUGHES INC

Inventor： SCOTT DANNY E ,  LIN CHIH ,  DICK AARON

IPC: E21B10/22 ,  E21B10/25 ,  F16J15/34

Abstract: A rolling cone cutter has a bearing pin 15 on which is mounted a cone 17. A bearing sleeve 21 rotates with the cone and a rigid ring 23 is biassed against the sleeve by an energizing ring 29. There is an excluder ring 31. One or both the inter-engaging faces of the sleeve and the ring 23 is coated with a layer of DLC material. The DLC material, or diamond-like carbon, is a form of meta-stable amorphous carbon or hydrocarbon compound with properties very similar to those of diamond. To form the layer on the face 27 of the ring 23, a first operation comprises the deposition of material trom an RF plasma, sustained in hydrocarbon gases, onto negatively biased ring 23. After heating, face 27 is etched by argon ion bombardment. Then one or more metallic interlayers is applied from a sputter source such as a chromium target. Lastly, acetylene is introduced and a plasma is ignited between face 27 and the chamber walls. The acetylene decomposes to form carbon atoms that coat face 27 on the metallic interlayer with DLC. During the entire coating process, the temperature will be maintained below the lowest transformation temperature of the ring 23. Other processes are suitable, including primary ion beam deposition of carbon items. The coating preferably has a thickness of 2 to 3 micrometers, the hardness is in the range from 2,000 to 5,000 Knoop.

公开(公告)号：WO2009105420A2

公开(公告)日：2009-08-27

申请号：PCT/US2009034271

申请日：2009-02-17

Applicant: BAKER HUGHES INC ,  DICK AARON ,  CURRY DAVID A ,  KOLTERMANN TERRY J ,  LIN CHIH ,  SCOTT DAN E ,  ZAHRADNIK ANTON ,  KIRWAN BRENDAN P

Inventor： DICK AARON ,  CURRY DAVID A ,  KOLTERMANN TERRY J ,  LIN CHIH ,  SCOTT DAN E ,  ZAHRADNIK ANTON ,  KIRWAN BRENDAN P

IPC: E21B10/48 ,  E21B10/02

CPC classification number: E21B10/22

Abstract: Downhole tool bearings are provided with diamond enhanced materials. The diamond enhanced materials comprise diamond grains in a matrix of tungsten or silicon carbide. A brazed diamond grit or diamond particles coated with a reactive braze may be utilized for bearing applications. Bearing rings formed at least in part with diamond enhanced material are installed on at least one of the bearing pin journal, the nose and the cone cavity. The bearing rings may be continuous rings or partial rings and attached to the journal pin or cone cavity. These may include thrust bearings, rollers, roller race, balls and ball races made of diamond enhanced material. These bearing surfaces also are formed at least in part with diamond enhanced material and attached to portions of the journal or cone bearing surfaces.

Abstract translation: 井下工具轴承配有钻石增强材料。 金刚石增强材料包括在钨或碳化硅的基体中的金刚石晶粒。 用反应性钎焊涂覆的钎焊金刚石砂粒或金刚石颗粒可用于轴承应用。 至少部分形成有金刚石增强材料的轴承环安装在轴承销轴颈，鼻部和锥体腔中的至少一个上。 轴承圈可以是连续的环或部分环，并且连接到轴颈销或锥形腔。 这些可能包括由钻石增强材料制成的推力轴承，滚子，滚子赛，球和球赛。 这些轴承表面也至少部分地由金刚石增强材料形成，并且附接到轴颈或锥形轴承表面的部分。

公开(公告)号：WO2008131095A3

公开(公告)日：2008-12-24

申请号：PCT/US2008060621

申请日：2008-04-17

Applicant: BAKER HUGHES INC ,  KOLTERMANN TERRY ,  DICK AARON ,  LIN CHIH C

Inventor： KOLTERMANN TERRY ,  DICK AARON ,  LIN CHIH C

IPC: E21B10/25

CPC classification number: E21B10/25

Abstract: An earth boring bit has a bit body (13) with at least one bearing pin (15). A cone (16) is rotatably mounted on the bearing pin (15). A seal assembly (19) is located between the cone (16) and the bearing pin (15), the seal assembly (19) having at least one flexible seal member (25,31). A flexible pressure compensating diaphragm (17) is mounted in the body (13). The diaphragm (17) has one side adapted to be exposed to borehole fluids and another side in contact with lubricant contained in bearing spaces between the cone (16) and the bearing pin (15). The flexible seal member (25,31) and the diaphragm (17) are, formed of a fluprinated elastomer. The elastomer is either a perf luoroelastomer (FFKM) or a f luoroelastomer (FKM).

Abstract translation: 地镗头具有带有至少一个轴承销（15）的钻头体（13）。 锥体（16）可旋转地安装在轴承销（15）上。 密封组件（19）位于锥体（16）和轴承销（15）之间，密封组件（19）具有至少一个柔性密封件（25,31）。 柔性压力补偿膜片（17）安装在主体（13）中。 隔膜（17）具有适于暴露于井眼流体的一侧，另一侧与容纳在锥体（16）和轴承销（15）之间的轴承空间中的润滑剂接触。 柔性密封构件（25,31）和隔膜（17）由氟化弹性体形成。 弹性体是全氟橡胶（FFKM）或氟橡胶（FKM）。

公开(公告)号：MX2009011203A

公开(公告)日：2009-11-25

申请号：MX2009011203

申请日：2008-04-17

Applicant: BAKER HUGHES INC

Inventor： LIN CHIH C ,  KOLTERMANN TERRY ,  DICK AARON

IPC: E21B10/25

Abstract: Una barrena de perforación terrestre tiene un cuerpo (13) de barrena con por lo menos un perno (15) de cojinete. Un cono (16) se monta en forma giratoria en el perno (15) de cojinete. Un ensamble (19) sellador se ubica entre el cono (16) y el perno (15) de cojinete, el ensamble (19) sellador tiene por lo menos un miembro (25, 31) sellador flexible. Una presión flexible que compensa en diafragma (17) se monta en el cuerpo (13). El diafragma (17) tiene un lado adaptado para exponerse a los fluidos del pozo de sondeo y otro lado en contacto con el lubricante que se encuentra en los espacios del cojinete entre el cono (16) y el perno (15) de cojinete. El miembro (25, 31) sellador flexible y el diafragma (17) se forman de un elastómero fluorado. El elastómero es ya sea un perfluoroelastómero (FFKM) o un fluoroelastómero (FKM).

公开(公告)号：CA2682604A1

公开(公告)日：2008-10-16

申请号：CA2682604

申请日：2008-04-03

Applicant: BAKER HUGHES INC

Inventor： NGUYEN DON ,  DICK AARON ,  KOLTERMANN TERRY ,  SULLIVAN ERIC ,  ANTON ZAHRADNIK ,  SHU SCOTT

IPC: E21B10/22 ,  E21B10/25

Abstract: A thrust washer located between the thrust surfaces of the head and the c one of a drill bit allows for radial rotation between the cone, thrust washe r, and head during drilling operations. The thrust washer also accommodates axial rotation between the cone and the head. The mating thrust surfaces bet ween the thrust washer and the head are contoured to allow the thrust washer to rotate axially with the cone, and provide increased bearing contact betw een the thrust washer and the cone.