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1. 发明授权

US3882946A Turbodrill 失效
标题翻译： TURBODRILL
公开(公告)号：US3882946A
公开(公告)日：1975-05-13
申请号：US46379674
申请日：1974-04-24
申请人： IOANNESIAN ROLEN ARSENIEVICH , IOANESIAN JURY ROLENOVICH
发明人： IOANNESIAN ROLEN ARSENIEVICH , IOANESIAN JURY ROLENOVICH
IPC分类号： E21B4/02 , F03B13/02 , E21B3/12
CPC分类号： E21B4/02 , F03B13/02 , Y10S415/903
摘要： A turbodrill provided with at least two multistage hydraulic turbines mounted one after another and operating in succession at different speeds. According to the invention, the first element along the path of the drilling fluid fed from the turbodrill is a low-speed turbine and/or hydrodynamic braking stages mounted on a solid shaft and capable of passing the total flow of the fluid. The second element along the path of the drilling fluid is a high-speed turbine capable of utilizing a high pressure drop and developing a high torque, with the turbine being mounted on a hollow shaft connected to a bit. Ahead of the high-speed turbine inlet, there is mounted a device dividing the fluid coming from the low-speed turbine into two flows, one being directed to the high-speed turbine and the other being directed to the bit through the hollow shaft of this turbine. The turbodrill allows a high pressure drop to be utilized in the bit without increasing the pressure in the delivery line of the mud pump and thereby providing for a hydraulic effect without using a packing gland at low speeds of the bit and high axial loads on the bottom hole.
摘要翻译：一个涡轮增压器配备有至少两台多级水轮机，它们依次安装在不同的速度下连续运行。根据本发明，沿着从涡轮泵送入的钻井液的路径的第一元件是安装在实心轴上并且能够使流体的总流动通过的低速涡轮机和/或液力动力制动级。沿着钻井流体路径的第二元件是能够利用高压降并显影高扭矩的高速涡轮机，其中涡轮机安装在连接到钻头的空心轴上。在高速涡轮机入口之前，安装有将来自低速涡轮机的流体分成两个流的装置，一个流向高速涡轮机，另一个通过空气轴被引导到钻头这个涡轮。涡轮增压器允许在钻头中使用高压降而不增加泥浆泵的输送管线中的压力，从而提供液压效果，而不会在钻头的低速度下使用填料压盖并且在底部的高轴向载荷孔。

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