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    EARTH-BORING TOOLS HAVING CUTTING ELEMENTS WITH CUTTING FACES EXHIBITING MULTIPLE COEFFICIENTS OF FRICTION, AND RELATED METHODS
    2.
    发明公开
    EARTH-BORING TOOLS HAVING CUTTING ELEMENTS WITH CUTTING FACES EXHIBITING MULTIPLE COEFFICIENTS OF FRICTION, AND RELATED METHODS 有权
    与具有多摩擦系数和相关手续的切割面切削元件ERDBOHRWERKZEUGE

    公开(公告)号：EP2844819A4

    公开(公告)日：2016-03-30

    申请号：EP13785153

    申请日：2013-05-01

    Applicant: BAKER HUGHES INC

    Inventor： BILEN JUAN MIGUEL ,  DIGIOVANNI ANTHONY A ,  LIN CHIH C ,  PATEL SURESH G ,  PESSIER RUDOLF CARL ,  SCOTT DANNY E ,  DOSTER MICHAEL L

    IPC: E21B10/567 ,  B23P15/28 ,  B24D18/00

    CPC classification number: B24D18/009 ,  B23K26/0078 ,  B23P15/28 ,  E21B10/567 ,  E21B10/5676 ,  E21B2010/566

    Abstract: An earth-boring tool having at least one cutting element with a multi-friction cutting face provides for the steering of formation cuttings as the cuttings slide across the cutting face. The multi-friction cutting element includes a diamond table bonded to a substrate of superabrasive material. The diamond table has a cutting face formed thereon with a cutting edge extending along a periphery of the cutting face. The cutting face has a first area having an average surface finish roughness less than an average surface finish roughness of a second area of the cutting face, the two areas separated by a boundary having a proximal end proximate a tool crown and a distal end remote from the tool crown.

    Abstract translation: 具有与多摩擦切削面的至少一个切割元件的钻地工具提供用于地层钻屑的转向为钻屑越过切削面滑动。 多摩擦切割元件包括结合到超级磨料材料的基板的金刚石台面。 金刚石台具有带切削刃沿切削面的外周延伸形成在其上的切削面。 切削面具有平均表面光洁度粗糙面的第一面积小于在所述切削面的第二区域的平均表面光洁度粗糙度，由具有近端的边界分开的两个区域邻近的工具冠部和从远端远程 该工具冠。

    SEAL WITH ABRASIVE PARTICLES FOR ROLLER CONE BIT BEARING
    3.
    发明申请
    SEAL WITH ABRASIVE PARTICLES FOR ROLLER CONE BIT BEARING 审中-公开
    密封用于滚子锥形轴承的磨料颗粒

    公开(公告)号：WO2009067650A3

    公开(公告)日：2011-01-27

    申请号：PCT/US2008084314

    申请日：2008-11-21

    Applicant: BAKER HUGHES INC ,  LIN CHIH C

    Inventor： LIN CHIH C

    IPC: E21B10/25

    CPC classification number: E21B10/25

    Abstract: A roller cone bit having an elastomeric seal (50) with a self break-in property is disclosed. The elastomeric seal includes abrasive material (54) on a sliding surface (53) for facilitating break-in. During break-in the abrasive particles smooth -the sliding surface on the bit leg by removing protrusions or surface roughness that results from machining the sliding surface and which may damage the seal's elastomeric body.

    Abstract translation: 公开了一种具有弹性体密封件（50）的滚子锥形钻头，其具有自我破裂特性。 弹性体密封件包括滑动表面（53）上的磨料（54），以便于进入。 磨损颗粒在打磨过程中通过移除由加工滑动表面而产生的突起或表面粗糙度，平滑滑动钻头的滑动表面，并可能损坏密封件的弹性体。

    5.
    发明专利
    未知

    公开(公告)号：DE602007003365D1

    公开(公告)日：2009-12-31

    申请号：DE602007003365

    申请日：2007-07-12

    Applicant: BAKER HUGHES INC

    Inventor： ZAHRADNIK ANTON ,  RICKS GREGORY L ,  PETERSON GREGORY W ,  NGUYEN DON QUY ,  LIN CHIH C ,  KOLTERMANN TERRY J

    IPC: E21B10/25

    Abstract: An elastomeric seal ring is located between each bearing pin and each cone of an earth-boring bit. An excluder ring or band is imbedded within the inner diameter of the seal ring. A portion of the inner diameter of the seal ring as well as the excluder ring are in dynamic sealing contact with the bearing pin. The excluder ring may be harder and more wear resistant than the seal ring. The excluder ring may have lubricating properties. An outer excluder ring may be located on the outer diameter of the seal ring for engaging the cone to resist rotation.

    MATERIAL ELASTOMERO PARA BARRENAS DE CONO DE RODILLO DE ALTA TEMPERATURA.
    6.
    发明专利
    MATERIAL ELASTOMERO PARA BARRENAS DE CONO DE RODILLO DE ALTA TEMPERATURA. 未知

    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).

    COMPOSITE METALLIC ELASTOMERIC SEALING COMPONENTS FOR ROLLER CONE DRILL BITS
    7.
    发明专利
    COMPOSITE METALLIC ELASTOMERIC SEALING COMPONENTS FOR ROLLER CONE DRILL BITS 未知

    公开(公告)号：CA2730409A1

    公开(公告)日：2011-08-03

    申请号：CA2730409

    申请日：2011-01-28

    Applicant: BAKER HUGHES INC

    Inventor： CURRY DAVID A ,  KOLTERMANN TERRY J ,  LIN CHIH C ,  HALL STUART

    IPC: E21B10/25

    Abstract: An earth boring bit has a bit body with a depending bearing pin, a cone rotatably mounted on the bearing pin, a seal gland between the cone and the bearing pin, and a seal assembly located in the seal gland. The seal assembly includes an annular metallic spring encircling the bearing pin. The spring has a geometric center line that extends in a circle around the bearing pin. The spring is elastically deformable in radial directions relative to the center line. An elastomeric layer is located on an exterior side of the spring and is biased by the spring against a surface of the seal gland.

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