ENHANCED BACKUP RING FEATURES FOR METAL FACE SEAL IN ROLLER CONE DRILL BITS
    1.
    发明申请
    ENHANCED BACKUP RING FEATURES FOR METAL FACE SEAL IN ROLLER CONE DRILL BITS 审中-公开
    用于金属表面密封的增强型支撑环特征

    公开(公告)号:WO2014124248A3

    公开(公告)日:2015-01-08

    申请号:PCT/US2014015289

    申请日:2014-02-07

    CPC classification number: E21B10/25

    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.

    Abstract translation: 用于辊锥形钻头中的面密封件的支撑环被配置为抵抗来自邻近的支撑环的暴露表面的钻井液的磨损,部分以各种形状从暴露的端面移除,同时材料的硬度增加 。 材料的去除抵消了由于弯曲而将在面密封组件上通过支撑环传递的力的增加。 可以可选地在去除的材料位置中包括弹簧。 另一种方法是增加所有或部分暴露边缘的边缘密度,同时通过使用电子束辐射不影响内部部分以增加交联密度,或通过允许具有更持久的边缘区域的整体结构的其它技术来增加边缘密度。

    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

    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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