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    Increased point of contact Tungsten Carbide insert for fixed rotary drill bit
    1.
    发明申请
    Increased point of contact Tungsten Carbide insert for fixed rotary drill bit 审中-公开
    增加接点用于固定旋转钻头的碳化钨刀片

    公开(公告)号：US20140196958A1

    公开(公告)日：2014-07-17

    申请号：US13998133

    申请日：2013-10-04

    申请人： Hi-Jet, LLC

    发明人： Jonathan R. Schmidt ,  Rafe E. Neasbitt ,  Spencer David Hendrix ,  Zan Elden Svendsen

    IPC分类号： E21B10/567 ,  E21B10/56 ,  E21B10/55

    CPC分类号： E21B10/567 ,  E21B10/43

    摘要： A fixed rotary drill bit, especially the type rotary drill bits incorporating a plurality of spaced polycrystalline diamond compact (PDC) cutters or cutting elements on a plurality of radial blades, includes multiple tungsten carbide inserts (TCI) spaced between the PDC cutters or cutting elements, each TCI providing a mitigation to vibration for the drill bits, rapidly adapting the TCIs by wear from the intermediary formation ridges created from drilling resulting in the creation of a unique kerf in each TCI, thus increasing stability of the bit from lateral instability, making the drill bit more efficient, and promoting a continual steady state of drilling.

    摘要翻译： 固定的旋转钻头，特别是在多个径向叶片上并入多个间隔开的多晶金刚石（PDC）切割器或切割元件的旋转钻头包括在PDC切割器或切割元件之间间隔开的多个碳化钨刀片（TCI） ，每个TCI为钻头的振动提供缓解，通过来自钻孔产生的中间形成脊的磨损快速地适应TCI，导致在每个TCI中创建独特的切口，从而增加钻头从侧向不稳定性的稳定性，使得 钻头效率更高，促进钻井持续稳定。