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    DRILLING TOOL
    1.
    发明授权
    DRILLING TOOL 有权

    公开(公告)号：EP3044406B1

    公开(公告)日：2018-10-24

    申请号：EP14761369.9

    申请日：2014-09-09

    申请人： Welltec A/S

    发明人： ANDERSEN, Tomas, Sune ,  JENSEN, Sven, Karsten

    IPC分类号： B23B45/02 ,  E21B23/00 ,  E21B41/00 ,  E21B4/04 ,  E21B7/00 ,  E21B21/00

    CPC分类号： E21B4/04 ,  B23B45/02 ,  B23B2226/75 ,  B23B2270/62 ,  E21B7/00 ,  E21B21/00 ,  E21B41/00 ,  E21B2023/008

    摘要： A drilling tool comprising an electrical motor (6) driving a first shaft (7); a pump (8) driven by the motor (6) for pumping well fluid in through an inlet (9) and out through an outlet (10); a gear (11) driven by the first shaft (7) extending through the pump for reducing rotation of a second shaft; and a drilling head (14) having bits (15) and at least one drilling head fluid channel and being driven by the second shaft, the outlet (10) of the pump being fluidly connected with the fluid channel to pump well fluid out through the fluid channel. The gear (11) is arranged in a gear housing (17) arranged in a tool housing (18) defining a gear fluid channel providing fluid communication between the pump and the drilling head fluid channel to prevent well fluid from entering the gear.

    DRILLING TOOL
    2.
    发明公开
    DRILLING TOOL 审中-公开
    钻孔工具

    公开(公告)号：EP3044406A1

    公开(公告)日：2016-07-20

    申请号：EP14761369.9

    申请日：2014-09-09

    申请人： Welltec A/S

    发明人： ANDERSEN, Tomas, Sune ,  JENSEN, Sven, Karsten

    IPC分类号： E21B41/00 ,  E21B4/04 ,  E21B7/00 ,  E21B21/00

    CPC分类号： E21B4/04 ,  B23B45/02 ,  B23B2226/75 ,  B23B2270/62 ,  E21B7/00 ,  E21B21/00 ,  E21B41/00 ,  E21B2023/008

    摘要： A drilling tool comprising an electrical motor (6) driving a first shaft (7); a pump (8) driven by the motor (6) for pumping well fluid in through an inlet (9) and out through an outlet (10); a gear (11) driven by the first shaft (7) extending through the pump for reducing rotation of a second shaft; and a drilling head (14) having bits (15) and at least one drilling head fluid channel and being driven by the second shaft, the outlet (10) of the pump being fluidly connected with the fluid channel to pump well fluid out through the fluid channel. The gear (11) is arranged in a gear housing (17) arranged in a tool housing (18) defining a gear fluid channel providing fluid communication between the pump and the drilling head fluid channel to prevent well fluid from entering the gear.

    摘要翻译： 一种用于在石油钻井平台的水泥压载舱（3）中钻孔的钻孔工具（1），以便进入压载舱内的内部空间，包括驱动第一轴（7）的电动马达（6）; 由马达驱动的泵（8），用于将流体通过入口（9）泵入并通过出口（10）流出; 由第一轴驱动的齿轮（11），其延伸通过泵以减小第二轴（12）的旋转; 以及具有钻头和至少一个钻头流体通道并由第二轴（12）驱动的钻头（14），所述泵的出口与所述流体通道流体连接，以将井流体泵出通过所述流体通道。