公开(公告)号：GB2398091A

公开(公告)日：2004-08-11

申请号：GB0408974

申请日：2001-05-14

Applicant: BAKER HUGHES INC

Inventor： SULLIVAN ERIC CHARLES ,  ZALESKI THEODORE EDWARD ,  SCHMIDT SCOTT RAY ,  NGUYEN DON QUY ,  ZADRAPA GLENN R ,  LIN CHIH

IPC: E21B10/22 ,  E21B44/00 ,  E21B47/06

Abstract: An apparatus for adaptive control for a downhole bit has a number of sensors 2101,2103, 2105, which send information based on downhole parameters to a controller 2100 carried near to a drill head. Based on the information sent to the controller 2100, it can activate actuators 2109, 2111, 2113, to alter the downhole operations, for example, the direction of the drill bit, angle of drill cones, angle of coolant nozzles or speed of rotation of the bit.

公开(公告)号：GB2381020A

公开(公告)日：2003-04-23

申请号：GB0221634

申请日：2002-09-17

Applicant: BAKER HUGHES INC

Inventor： LIN CHIH ,  KOLTERMANN TERRY ,  SCOTT DANNY E

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

Abstract: An earth-boring bit has a mechanical face seal assembly with PCD faces. The bit has a bearing shaft 15 with a cone 16 rotatably mounted on the bearing shaft. The seal locates between the bearing shaft and the cone for sealing lubricant therein. The seal includes at least one rigid seal ring 21 having a carbide body and an annular PCD face 33 located on it. The mating face 35 may also be of a PCD material, and as shown is formed by an annular insert 23 which has a metal carbide body 36. An energizing elastomer forces the faces together and, elastomer 31 prevents the ingress of debris. Various configurations of the faces 33, 35 are disclosed, as is a method of forming the faces.

公开(公告)号：FR2752596B1

公开(公告)日：2000-10-13

申请号：FR9710008

申请日：1997-08-05

Applicant: BAKER HUGHES INC

Inventor： LIN CHIH

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

Abstract: An earth-boring bit has a bit body, at least one cantilevered bearing shaft, including a base and a cylindrical journal bearing surface extending inwardly and downwardly from the bit body, and at least one cutter mounted for rotation on the cylindrical journal bearing surface of the bearing shaft. A seal assembly is disposed between the cylindrical journal bearing surface and the cutter proximally to the base of the cantilevered bearing shaft. The seal assembly includes at least one rigid seal ring having a seal face in contact with a second seal face. A selected one of the seal faces is at least partially formed of a hard ceramic type material with the other seal face being formed of a relatively softer material to provide improved wear resistance for the seal assembly.

公开(公告)号：FR2752596A1

公开(公告)日：1998-02-27

申请号：FR9710008

申请日：1997-08-05

Applicant: BAKER HUGHES INC

Inventor： LIN CHIH

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

Abstract: An earth-boring bit has a bit body, at least one cantilevered bearing shaft, including a base and a cylindrical journal bearing surface extending inwardly and downwardly from the bit body, and at least one cutter mounted for rotation on the cylindrical journal bearing surface of the bearing shaft. A seal assembly is disposed between the cylindrical journal bearing surface and the cutter proximally to the base of the cantilevered bearing shaft. The seal assembly includes at least one rigid seal ring having a seal face in contact with a second seal face. A selected one of the seal faces is at least partially formed of a hard ceramic type material with the other seal face being formed of a relatively softer material to provide improved wear resistance for the seal assembly.

公开(公告)号：SG11201508992SA

公开(公告)日：2015-11-27

申请号：SG11201508992S

申请日：2014-05-02

Applicant: BAKER HUGHES INC

Inventor： LIN CHIH ,  DICK AARON J ,  SCHRODER JON D ,  ZAHRADNIK ANTON F ,  FLORES ALEJANDRO ,  BRADSHAW ROBERT D

IPC: E21B10/25 ,  E21B10/08 ,  F16J15/16

公开(公告)号：ZA201302613B

公开(公告)日：2014-10-29

申请号：ZA201302613

申请日：2013-04-11

Applicant: BAKER HUGHES INC ,  ELEMENT SIX LTD

Inventor： FLORES ALEJANDRO ,  LIN CHIH ,  VAN STADEN LOUISE F ,  VAN DER RIET CLEMENT DAVID ,  VUKOVIC DRAGAN ,  DICK AARON J ,  BRADFORD JOHN F ,  SWANEPOEL GREGORY B ,  WAI SIU-WAH ,  TANK KLAUS

IPC: E21B20060101

Abstract: Bearings for downhole tools including a first bearing member and a second bearing member, at least one of the first and second bearing members having a channel formed therein. Methods of cooling bearings of downhole tools comprise flowing a fluid within a channel formed in at least one bearing member. Heat is transferred from at least the at least one bearing member to the fluid. The fluid is flowed away from the at least one bearing member.

公开(公告)号：SG189368A1

公开(公告)日：2013-05-31

申请号：SG2013027396

申请日：2011-08-31

Applicant: BAKER HUGHES INC

Inventor： DICK AARON J ,  CURRY DAVID A ,  KOLTERMANN TERRY J ,  LIN CHIH ,  SCOTT DANNY E ,  ZAHRADNIK ANTON F

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 or a silicon-bonded diamond material. A brazed diamond grit or diamond particles coated with a reactive braze may be utilized for bearing applications. Bearing rings for use in downhole tools may be formed at least in part with the diamond-enhanced material. In one embodiment, the bearing rings may be used in a positive displacement motor. In additional embodiments, the bearing rings may be used in a submersible pump.

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：SG121146A1

公开(公告)日：2006-04-26

申请号：SG200505967

申请日：2005-09-16

Applicant: BAKER HUGHES INC

Inventor： LIN CHIH ,  NGUYEN DON QUY ,  RICKS GREGORY L ,  KOLTERMANN TERRY J

Abstract: A metal face seal for an earth boring drill bit where the drill bit has a bit body, at least one bit leg, a bearing pin on each bit leg, and a cone rotatably mounted on each bearing pin. The metal face seal is located in the cavity formed between the interior surface of the cone and the bearing pin. The metal face seal consists of a rigid seal ring having a forward surface that engages a rotating seal surface of the cone. An energizer ring biases the rigid seal ring toward the rotating seal surface. A secondary seal engages the bearing pin surface, the energizer ring, and the rigid seal ring. The secondary seal ring has a protuberance on its forward side for filling void spaces between the energizer ring, the rigid seal ring, and the secondary seal ring.

公开(公告)号：GB2410277A

公开(公告)日：2005-07-27

申请号：GB0507277

申请日：2001-05-14

Applicant: BAKER HUGHES INC

Inventor： SULLIVAN ERIC CHARLES ,  ZALESKI JR THEODORE EDWARD ,  SCHMIDT SCOTT RAY ,  NGUYEN DON QUY ,  ZADRAPA GLENN R ,  LIN CHIH

IPC: E21B10/24 ,  E21B47/06 ,  E21B47/18 ,  E21B10/18

Abstract: A drill bit (26, fig 1) having a bit condition sensor system to relay information on downhole conditions during drilling has an oscillator 901, capacitor 903 and resistor 905. The resistor 905 (which may be a thermocouple temperature sensor) changes with temperature which changes the oscillation frequency of oscillator 901. The output of oscillator 901 is fed to a sampling circuit 907 and recording circuit 909 which uses the information to determine and record information, eg, temperature in a drill bit leg (fig 3).