公开(公告)号：EP2470743A2

公开(公告)日：2012-07-04

申请号：EP10814172.2

申请日：2010-08-19

申请人： Baker Hughes Incorporated

发明人： LIN, Chih ,  DICK, Aaron, J.

IPC分类号： E21B10/22 ,  E21B10/25 ,  E21B10/50

CPC分类号： E21B10/25 ,  F16J15/3424 ,  F16J15/344 ,  Y10T29/49885

摘要： The present invention relates to a method and apparatus for forming a dynamic seal between two surfaces (136, 140). More specifically, the invention relates to creating a textured surface (166) with a thin, hard coating (176) on a metallic annular sealing ring (170) such as the sealing ring used in an earth boring drill bit (100).

公开(公告)号：EP1951987A1

公开(公告)日：2008-08-06

申请号：EP06816362.5

申请日：2006-10-11

申请人： Baker Hughes Incorporated

发明人： DICK, Aaron ,  LIN, Chih

IPC分类号： E21B10/24

CPC分类号： E21B10/24

摘要： An earth boring bit (11) has thrust faces (27,33) with one of the thrust faces (27) being at least partially tilted relative to the other. The bit has a cone (29) rotatably mounted to a bearing pin (1.9) of the bit body. The thrust faces are in the cone and on an end of the bearing pin. One of the thrust faces (33) is completely flat and perpendicular to the axis of the bearing pin. The other (27) thrust face has a tilted portion that is at a skewed angle relative to the axis. The tilted portion creates converging and diverging zones between the thrust faces (27,33).

公开(公告)号：EP1828535A2

公开(公告)日：2007-09-05

申请号：EP05852695.5

申请日：2005-12-02

申请人： BAKER HUGHES INCORPORATED

发明人： LIN, Chih ,  SULLIVAN, Eric, Charles

IPC分类号： E21B10/22 ,  E21B10/24

CPC分类号： E21B10/24 ,  F16C33/102 ,  F16C2240/40 ,  F16C2240/44

摘要： An earth boring bit has sliding engaging surfaces between a cone assembly and a bearing pin. Micropores (57) are formed in at least one of the engaging surfaces (53). Each of the micropores (57) has a leading portion (61) and a trailing portion (63). The leading portion is at a more gradual slope than the trailing portion. The micropores are located in a pattern of a greater density in a region of the engaging surfaces that operate at higher pressures than in other regions.

摘要翻译： 地镗头在锥形组件和轴承销之间具有滑动接合表面。 微孔形成在至少一个接合表面中。 每个微孔具有前导部分和尾部部分。 前导部分比后端部分具有更为缓慢的斜率。 在比其他区域更高的压力操作的接合表面的区域中，微孔位于较大密度的图案中。

公开(公告)号：EP2627852A1

公开(公告)日：2013-08-21

申请号：EP11832911.9

申请日：2011-08-31

申请人： Baker Hughes Incorporated ,  Element Six Limited ,  Element Six GmbH

发明人： DICK, Aaron, J. ,  CURRY, David, A. ,  KOLTERMANN, Terry, J. ,  LIN, Chih ,  SCOTT, Danny, E. ,  ZAHRADNIK, Anton, F. ,  VAN STADEN, Louise, Frances ,  FLYNN, Gerald, Francis ,  FRIES, Robert

IPC分类号： E21B10/22 ,  E21B10/50 ,  F16C32/00 ,  F04B39/00

CPC分类号： E21B4/003 ,  E21B10/22 ,  E21B10/23 ,  F16C17/04 ,  F16C33/043 ,  F16C33/1065 ,  F16C2352/00

摘要： 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.

摘要翻译： 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或硅键合金刚石材料的基体中的金刚石晶粒。 涂有反应性钎焊的钎焊金刚石砂粒或金刚石颗粒可用于轴承应用。 用于井下工具的轴承环可以至少部分地与金刚石增强材料形成。 在一个实施例中，轴承环可用于正位移电动机。 在另外的实施例中，轴承环可以用在潜水泵中。

公开(公告)号：EP2373867A2

公开(公告)日：2011-10-12

申请号：EP09837032.3

申请日：2009-12-23

申请人： Baker Hughes Incorporated

发明人： LIN, Chih ,  DICK, Aaron, J.

IPC分类号： E21B10/22 ,  C09D163/00 ,  C09D175/04

CPC分类号： E21B10/22 ,  Y10T29/49986

摘要： A drill bit bearing having a treated surface and method for preparing the same is provided. The method includes the steps of polishing at least one contacting surface of the bearing with an abrasive paste to a finish of less than about 10 μin Ra. The surface of the polishing instrument has a coating that includes a mixture of an epoxy cement and a polymer.

公开(公告)号：EP2992162A1

公开(公告)日：2016-03-09

申请号：EP14791711.6

申请日：2014-05-02

申请人： Baker Hughes Incorporated

发明人： LIN, Chih ,  DICK, Aaron, J. ,  SCHRODER, Jon, D. ,  ZAHRADNIK, Anton, F. ,  FLORES, Alejandro ,  BRADSHAW, Robert, D.

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

CPC分类号： E21B10/25 ,  E21B10/22 ,  E21B2010/225 ,  Y10T29/49826

摘要： In one aspect, a drill bit is disclosed that in one embodiment may include a bit body, a rotating cutter on the bit body, and a metallic seal between the bit body and the rotating cutter that includes a first seal member, a second seal member having a first end in sealing contact with the first seal member, a second end fixed relative to the first end and a bias member between the first end and the second end that adjusts the load on the first seal member in response to external load applied on the drill bit.

摘要翻译： 一方面，公开了一种钻头，其在一个实施例中可以包括钻头体，钻头体上的旋转切割器以及钻头体和旋转切割器之间的金属密封件，其包括第一密封构件，第二密封构件 具有与所述第一密封构件密封接触的第一端，相对于所述第一端固定的第二端和在所述第一端和所述第二端之间的偏置构件，其响应于施加在所述第一密封构件上的外部负载来调节所述第一密封构件上的载荷 钻头。

公开(公告)号：EP2954145A2

公开(公告)日：2015-12-16

申请号：EP14749624.4

申请日：2014-02-07

申请人： Baker Hughes Incorporated

发明人： LIN, Chih ,  KOLTERMANN, Terry, J. ,  ZAHRADNIK, Anton, F. ,  FLORES, Alejandro ,  RICKS, Gregory, L.

IPC分类号： E21B10/08 ,  E21B10/22

CPC分类号： E21B10/25

摘要： A backup ring for a face seal in a roller cone bit is configured to resist wear from drilling fluids present adjacent exposed faces of the backup ring, Portions are removed from an exposed end face in a variety of shapes while the hardness of the material is increased. The removal of material offsets an increase in force that would be transmitted through the backup ring on face seal assembly due to flexing. A spring can optionally be included in the removed material location. Another way is to increase the edge density of all or part of the exposed edges while leaving the interior portions unaffected by using electron beam radiation to increase the crosslink density or by other techniques that allow a unitary structure with a more durable edge region.

摘要翻译： 用于牙轮钻头中的面密封件的支承环被构造成抵抗存在于支承环的暴露面附近的钻井液的磨损。部分从暴露的端面以多种形状移除，同时材料的硬度增加 。 材料的移除抵消了因弯曲而通过面部密封组件上的支撑环传递的力的增加。 弹簧可以可选地包含在移除的材料位置中。 另一种方式是增加全部或部分暴露边缘的边缘密度，同时保持内部不受使用电子束辐射影响以增加交联密度或通过允许具有更耐用的边缘区域的整体结构的其他技术。

公开(公告)号：EP2954144A2

公开(公告)日：2015-12-16

申请号：EP14749558.4

申请日：2014-02-07

申请人： Baker Hughes Incorporated

发明人： LIN, Chih ,  KOLTERMANN, Terry, J. ,  ZAHRADNIK, Anton, F. ,  RICKS, Gregory, L.

IPC分类号： E21B10/08 ,  E21B10/22

CPC分类号： E21B10/25 ,  E21B2010/225 ,  F16J15/328 ,  F16J15/3284 ,  F16J15/344

摘要： A backup ring for a face seal in a roller cone bit is configured to resist wear from drilling fluids present adjacent exposed faces of the backup ring. Portions are removed from an exposed end face in a variety of shapes while the hardness of the material is increased. The removal of material offsets an increase in force that would be transmitted through the backup ring on face seal assembly due to flexing. A spring can optionally be included in the removed material location. Another way is to increase the edge density of all or part of the exposed edges while leaving the interior portions unaffected by using electron beam radiation to increase the crosslink density or by other techniques that allow a unitary structure with a more durable edge region.

摘要翻译： 用于牙轮钻头中的面密封件的支承环被构造成抵抗来自支承环的暴露面附近的钻井液的磨损。 部分从各种形状的暴露端面上移除，同时材料的硬度增加。 材料的移除抵消了因弯曲而通过面部密封组件上的支撑环传递的力的增加。 弹簧可以可选地包含在移除的材料位置中。 另一种方式是增加全部或部分暴露边缘的边缘密度，同时保持内部不受使用电子束辐射影响以增加交联密度或通过允许具有更耐用的边缘区域的整体结构的其他技术。

公开(公告)号：EP2622167A2

公开(公告)日：2013-08-07

申请号：EP11829990.8

申请日：2011-09-30

申请人： Baker Hughes Incorporated ,  Element Six Limited

发明人： FLORES, Alejandro ,  DICK, Aaron, J. ,  LIN, Chih ,  BRADFORD, John, F. ,  VAN STADEN, Louise, F. ,  SWANEPOEL, Gregory, B. ,  VAN DER RIET, Clement, D. ,  WAI, Siu-wah ,  VUKOVIC, Dragan ,  TANK, Klaus

IPC分类号： E21B10/22 ,  E21B10/24

CPC分类号： E21B10/23 ,  F16C17/10 ,  F16C33/106 ,  F16C43/04 ,  F16C2352/00 ,  Y10T29/49679

摘要： 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：EP2300684A1

公开(公告)日：2011-03-30

申请号：EP09735748.7

申请日：2009-04-21

申请人： Baker Hughes Incorporated

发明人： DICK, Aaron ,  KOLTERMANN, Terry, J. ,  LIN, Chih ,  BUTUC, Stefan, M. ,  FIELD-EATON, Cameron

IPC分类号： E21B47/12 ,  E21B47/06 ,  G01V3/38

CPC分类号： E21B10/24

摘要： A drill bit for drilling a wellbore, the drill bit having a body and at least one bearing. A rotar cone is rotatably attached to the bit body at the bearing. A lubricant reservoir is located in an inner portion of the bit body and is in fluid communication with the bearing. A communication port leads from the inner portion of the bit body to the exterior of the bit body. A fiber reinforced elastomeric pressure compensator diaphragm separates lubricant in the lubricant reservoir from the communication port.