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    ENHANCED BACKUP RING EDGE FEATURES FOR METAL FACE SEAL IN ROLLER CONE DRILL BITS
    1.
    发明公开
    ENHANCED BACKUP RING EDGE FEATURES FOR METAL FACE SEAL IN ROLLER CONE DRILL BITS 审中-公开
    金属密封件在滚动铸造工艺中的改进的环边特征

    公开(公告)号：EP2954144A4

    公开(公告)日：2016-10-26

    申请号：EP14749558

    申请日：2014-02-07

    Applicant: BAKER HUGHES INC

    Inventor： LIN CHIH ,  KOLTERMANN TERRY J ,  ZAHRADNIK ANTON F ,  RICKS GREGORY L

    IPC: E21B10/25 ,  F16J15/34

    CPC classification number: E21B10/25 ,  E21B2010/225 ,  F16J15/328 ,  F16J15/3284 ,  F16J15/344

    Abstract: 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.

    DOWNHOLE TOOL BEARING SYSTEM CONTAINING DIAMOND ENHANCED MATERIALS
    5.
    发明申请
    DOWNHOLE TOOL BEARING SYSTEM CONTAINING DIAMOND ENHANCED MATERIALS 审中-公开
    包含钻石增强材料的井下工具轴承系统

    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。

    DRILL BIT WITH A DYNAMIC METAL SEAL
    7.
    发明公开
    DRILL BIT WITH A DYNAMIC METAL SEAL 审中-公开
    BOHRMEISSEL MIT DYNAMISCHER METALLDICHTUNG

    公开(公告)号：EP2992162A4

    公开(公告)日：2017-04-26

    申请号：EP14791711

    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

    CPC classification number: E21B10/25 ,  E21B10/22 ,  E21B2010/225 ,  Y10T29/49826

    Abstract: 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.

    Abstract translation: 在一个方面，公开了一种钻头，其在一个实施例中可以包括钻头本体，钻头本体上的旋转刀具以及钻头本体和旋转刀具之间的金属密封件，其包括第一密封构件，第二密封构件 具有与第一密封构件密封接触的第一端，相对于第一端固定的第二端以及在第一端和第二端之间的偏置构件，所述偏置构件响应于施加在外壳上的外部负载而调整第一密封构件上的负载 钻头。

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