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138 条记录 (耗时 0.018 秒)

    EXCAVATING HEAD
    7.
    发明公开
    EXCAVATING HEAD 审中-公开

    公开(公告)号：EP3268570A1

    公开(公告)日：2018-01-17

    申请号：EP16717704.7

    申请日：2016-03-11

    申请人： Palmieri S.p.A.

    发明人： PALMIERI, Silvano

    IPC分类号： E21B7/28 ,  E21D9/00 ,  E21B10/08

    CPC分类号： E21B7/28 ,  E21B10/08 ,  E21D3/00

    摘要： The excavating head (1) comprises: an attachment element (8) to a driving machine to place the head (1) in rotation; a plate-shaped body (2) connected to the attachment element (8) and having a first main face (3) and a second main face (4) opposite to each other, the first main face (3) being facing to the excavation front; and an excavation tool (17) associated with the plate-shaped body (2) so as to protrude at least in part from the first main face (3); at least a through opening (20) and crossing the plate-shaped body (2) between the first main face (3) and the second main face (4), the excavation tool (17) being at least partially housed within the latter.

    DRILLING EQUIPMENT DEVICE ESPECIALLY ARRANGED FOR REAMING A BOREHOLE IN A ROCK FORMATION AND METHOD OF REAMING A BOREHOLE IN A ROCK FORMATION
    9.
    发明公开
    DRILLING EQUIPMENT DEVICE ESPECIALLY ARRANGED FOR REAMING A BOREHOLE IN A ROCK FORMATION AND METHOD OF REAMING A BOREHOLE IN A ROCK FORMATION 审中-公开
    钻井设备，特别是对于一个井在岩层延伸及方法井在岩层延伸

    公开(公告)号：EP2976486A4

    公开(公告)日：2016-11-09

    申请号：EP14772571

    申请日：2014-03-18

    申请人： NORHARD AS

    发明人： HAUGHOM PER OLAV

    IPC分类号： E21B7/28 ,  E21B4/00 ,  E21B4/04 ,  E21B7/30 ,  E21B10/08 ,  E21B10/28

    CPC分类号： E21B4/006 ,  E21B4/04 ,  E21B7/28 ,  E21B7/30 ,  E21B10/08 ,  E21B10/28

    摘要： A drilling equipment device (2') for use when reaming a pilot hole (13) in a rock formation (1), in which a drilling unit (2) comprises a rotatable drill-bit structure (15) fitted with roller cutters (12) which are arranged to break up the rock formation (1), the drill-bit structure (15) and an associated housing (16) being supported on a drill stem (21) which is connected in a rotationally rigid manner to a non-rotatable drill string (4). A method of reaming a pilot hole (13) in a rock formation (1) is described as well.

    摘要翻译： 甲钻井设备装置（2“），用于使用当扩孔在岩层（1），其中钻孔单元（2）包括装配有辊式切刀可旋转基体钻头结构（15）的导向孔（13）（12 ）被布置以破碎岩层（1），所述钻头结构（15）和上相关联的壳体（16）被支撑在其被连接在一个转动的方式到非一钻杆（21）的所有 可旋转的钻柱（4）。 在岩层（1）铰孔的导向孔（13）的方法被描述为良好。

    DRILL BIT WITH A DYNAMIC METAL SEAL
    10.
    发明公开
    DRILL BIT WITH A DYNAMIC METAL SEAL 审中-公开
    BOHRMEISSEL MIT DYNAMISCHER METALLDICHTUNG

    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。