BEARING INSERT SLEEVE FOR ROLLER CONE BIT
    14.
    发明申请
    BEARING INSERT SLEEVE FOR ROLLER CONE BIT 有权
    轴承塞子套筒用于滚子锥头

    公开(公告)号:US20080093128A1

    公开(公告)日:2008-04-24

    申请号:US11582684

    申请日:2006-10-18

    IPC分类号: E21B10/00

    CPC分类号: E21B10/22 E21B10/25

    摘要: An earth boring bit has a bearing pin with a sleeve mounted on it. The sleeve is fixed against rotation but able to float relative to the bearing pin. A cone fits over and forms a bearing surface with the sleeve. The sleeve and bearing pin are configured to have a clearance between them that has a forward portion that progressively decreases in a rearward direction. The clearance progressively decreases in a forward direction from the rearward end of the sleeve. The cone and the sleeve are able to tilt in unison with each other relative to the bearing pin when the bit is loaded.

    摘要翻译: 地镗头具有安装在其上的套筒的轴承销。 套筒固定不能旋转,但能相对于轴承销浮动。 锥体装配并与套筒形成支承​​面。 套筒和支承销构造成在它们之间具有间隙,其具有在向后方向上逐渐减小的前部。 间隙从套筒的后端沿向前方向逐渐减小。 当钻头加载时,锥体和套筒能够相对于轴承销彼此一致倾斜。

    Drill bit with a dynamic metal seal
    15.
    发明授权
    Drill bit with a dynamic metal seal 有权
    钻头采用动态金属密封

    公开(公告)号:US09316055B2

    公开(公告)日:2016-04-19

    申请号:US13886911

    申请日:2013-05-03

    IPC分类号: E21B10/25 E21B10/22

    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: 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。

    Drill Bit with a Dynamic Metal Seal
    16.
    发明申请
    Drill Bit with a Dynamic Metal Seal 有权
    钻头用动态金属密封

    公开(公告)号:US20140326514A1

    公开(公告)日:2014-11-06

    申请号:US13886911

    申请日:2013-05-03

    IPC分类号: E21B10/62

    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: 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。

    Elastomer Material for High Temperature Roller Cone Bits
    17.
    发明申请
    Elastomer Material for High Temperature Roller Cone Bits 审中-公开
    高温滚筒钻头用弹性体材料

    公开(公告)号:US20080257610A1

    公开(公告)日:2008-10-23

    申请号:US12104891

    申请日:2008-04-17

    IPC分类号: E21B10/25

    CPC分类号: E21B10/25

    摘要: An earth boring bit has a bit body with at least one bearing pin. A cone is rotatably mounted on the bearing pin. A seal assembly is located between the cone and the bearing pin, the seal assembly having at least one flexible seal member. A flexible pressure compensating diaphragm is mounted in the body. The diaphragm has one side adapted to be exposed to borehole fluids and another side in contact with lubricant contained in bearing spaces between the cone and the bearing pin. The flexible seal member and the diaphragm are formed of a fluorinated elastomer. The elastomer is either a perfluoroelastomer (FFKM) or a fluoroelastomer (FKM).

    摘要翻译: 地镗头具有至少一个轴承销的位体。 锥体可旋转地安装在轴承销上。 密封组件位于锥体和支承销之间,密封组件具有至少一个柔性密封构件。 柔性压力补偿膜片安装在主体内。 隔膜具有适于暴露于井眼流体的一侧,另一侧与锥体和轴承销之间的轴承空间中包含的润滑剂接触。 柔性密封构件和隔膜由氟化弹性体形成。 弹性体是全氟弹性体(FFKM)或氟弹性体(FKM)。

    Fiber Reinforced Pressure Compensator Diaphragm
    18.
    发明申请
    Fiber Reinforced Pressure Compensator Diaphragm 审中-公开
    纤维增强压力补偿器隔膜

    公开(公告)号:US20090260888A1

    公开(公告)日:2009-10-22

    申请号:US12427335

    申请日:2009-04-21

    IPC分类号: E21B10/24 F16N11/00

    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 rotary 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.

    摘要翻译: 一种用于钻井的钻头,所述钻头具有主体和至少一个轴承。 旋转锥体在轴承处可旋转地附接到钻头体。 润滑剂储存器位于钻头体的内部并与轴承流体连通。 连通端口从钻头体的内部部分引导到钻头体的外部。 纤维增强的弹性体压力补偿器隔膜将润滑剂储存器中的润滑剂与通信端口分开。

    Lubricated Diamond Bearing Drill Bit
    19.
    发明申请
    Lubricated Diamond Bearing Drill Bit 审中-公开
    润滑钻石轴承钻头

    公开(公告)号:US20090236147A1

    公开(公告)日:2009-09-24

    申请号:US12052627

    申请日:2008-03-20

    IPC分类号: C09K8/035

    摘要: A method for lubricating a diamond bearing system of a downhole well tool involves dispensing a polyol lubricant for the reduction of friction between the two diamond surfaces. The lubricant forms a reduced friction surface film on the diamond. The polyol lubricant may be mixed with water. The polyol lubricant may contain ethylene glycol, glycerol, or a combination with water.

    摘要翻译: 用于润滑井下钻井工具的金刚石轴承系统的方法包括分配多元醇润滑剂以减少两个金刚石表面之间的摩擦。 润滑剂在金刚石上形成减少的摩擦表面膜。 多元醇润滑剂可以与水混合。 多元醇润滑剂可以含有乙二醇,甘油或与水的组合。