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    CUTTING TOOL
    3.
    发明申请
    CUTTING TOOL 有权
    切割用具

    公开(公告)号：US20110290487A1

    公开(公告)日：2011-12-01

    申请号：US12859017

    申请日：2010-08-18

    申请人： Malcolm Perschke ,  Harshad Patil ,  Nishant Koti

    发明人： Malcolm Perschke ,  Harshad Patil ,  Nishant Koti

    IPC分类号： E21B29/00

    CPC分类号： E21B29/007

    摘要： A downhole tool having a cylindrical body, a sleeve having a contact portion disposed on a distal end, and a cutter having a radiused portion on a top surface operatively engageable with the contact portion. Also, a method of cutting drill pipe, the method including disposing a cutting tool in a wellbore around the drill pip and actuating a radiused cutter of the cutting tool, wherein the actuating includes radially extending the cutter into contact with the drill pipe. The method also includes applying a substantially constant force between the cutter and the drill pipe and rotating the cutting tool. Additionally, a cutter for a drill pipe cutting tool, the cutter including a work surface located at a first end of the cutter, an attachment point located at a second end of the cutter, and a radiused surface located between the work surface and the attachment point.

    摘要翻译： 一种具有圆柱形主体的井下工具，具有设置在远端上的接触部分的套筒以及具有与所述接触部分可操作地接合的上表面上的圆角部分的切割器。 另外，一种切割钻杆的方法，所述方法包括将切削工具设置在钻杆周围的井眼中并致动切割工具的圆弧切割器，其中所述致动包括径向延伸切割器与钻杆接触。 该方法还包括在切割器和钻杆之间施加基本恒定的力并旋转切割工具。 另外，一种用于钻杆切割工具的刀具，所述刀具包括位于所述刀具的第一端的工作表面，位于所述切割器的第二端的附接点以及位于所述工作表面和所述附件之间的圆角表面 点。

    Cutting tool
    4.
    发明授权
    Cutting tool 有权
    切割用具

    公开(公告)号：US08881817B2

    公开(公告)日：2014-11-11

    申请号：US12859017

    申请日：2010-08-18

    申请人： Malcolm Perschke ,  Harshad Patil ,  Nishant Koti

    发明人： Malcolm Perschke ,  Harshad Patil ,  Nishant Koti

    IPC分类号： E21B29/00

    CPC分类号： E21B29/007

    摘要： A downhole tool having a cylindrical body, a sleeve having a contact portion disposed on a distal end, and a cutter having a radiused portion on a top surface operatively engageable with the contact portion. Also, a method of cutting drill pipe, the method including disposing a cutting tool in a wellbore around the drill pip and actuating a radiused cutter of the cutting tool, wherein the actuating includes radially extending the cutter into contact with the drill pipe. The method also includes applying a substantially constant force between the cutter and the drill pipe and rotating the cutting tool. Additionally, a cutter for a drill pipe cutting tool, the cutter including a work surface located at a first end of the cutter, an attachment point located at a second end of the cutter, and a radiused surface located between the work surface and the attachment point.

    摘要翻译： 一种具有圆柱形主体的井下工具，具有设置在远端上的接触部分的套筒以及具有与所述接触部分可操作地接合的上表面上的圆角部分的切割器。 另外，一种切割钻杆的方法，所述方法包括将切削工具设置在钻杆周围的井眼中并致动切割工具的圆弧切割器，其中所述致动包括径向延伸切割器与钻杆接触。 该方法还包括在切割器和钻杆之间施加基本恒定的力并旋转切割工具。 另外，一种用于钻杆切割工具的刀具，所述刀具包括位于所述刀具的第一端的工作表面，位于所述切割器的第二端的附接点以及位于所述工作表面和所述附件之间的圆角表面 点。

    Milling system and method of milling
    6.
    发明申请
    Milling system and method of milling 审中-公开
    铣削系统和铣削方法

    公开(公告)号：US20080093076A1

    公开(公告)日：2008-04-24

    申请号：US11584454

    申请日：2006-10-20

    申请人： Harshad Patil ,  Malcolm Perschke

    发明人： Harshad Patil ,  Malcolm Perschke

    IPC分类号： E21B43/11

    CPC分类号： E21B29/06 ,  E21B7/064 ,  E21B10/567

    摘要： A mill assembly includes a shaft; a lead mill secured to a first end of the shaft, the lead mill including a first body having a plurality of first blades and a plurality of first cutters having substantially cylindrical bodies secured to the plurality of first blades; and a second mill secured to the shaft a selected distance from the lead mill, the second mill including a second body having a plurality of second blades and a plurality of second cutters having substantially cylindrical bodies secured to the plurality of blades.

    摘要翻译： 磨机组件包括轴; 固定在所述轴的第一端的主磨机，所述主磨机包括具有多个第一刀片的第一本体和具有固定到所述多个第一刀片的基本圆柱形主体的多个第一刀具; 以及第二磨机，其与所述主轴磨机相距一定距离地固定到所述轴上，所述第二轧机包括具有多个第二刀片的第二主体和具有固定到所述多个刀片的基本圆柱形主体的多个第二刀具。