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    • 23. 发明授权
    • Electro-hydraulic drilling with shock wave reflection
    • 电液钻探与冲击波反射
    • US08746365B2
    • 2014-06-10
    • US13252085
    • 2011-10-03
    • Alexander F. Gutsol
    • Alexander F. Gutsol
    • E21B7/15E21B7/00
    • E21B7/15
    • Shock waves produced during electro-hydraulic drilling can be reflected into a rock body where the reflected shock waves are converted from compression waves to tension waves, which are more efficient at breaking down the rock body. A system configured for electro-hydraulic drilling where shock waves produced during drilling are reflected into the rock body includes two electrodes and a shock wave reflector disposed at an electro-hydraulic drill head. The two electrodes are configured to (1) facilitate formation of a spark along a spark path spanning the two electrodes and (2) facilitate a pulse of electricity being passed through the spark to form a primary shock wave emanating from the spark path. The shock wave reflector is configured to reflect a portion of the primary shock wave such that the reflected shock wave is concentrated to a focal region within the rock body.
    • 在电液钻井过程中产生的冲击波可以反射到岩体中,反射的冲击波从压缩波转换为张力波,这在破碎岩体方面更有效率。 一种被配置用于电液钻井的系统,其中在钻井期间产生的冲击波被反射到岩体中包括设置在电液钻头上的两个电极和冲击波反射器。 两个电极被配置为(1)沿着跨越两个电极的火花通路形成火花,以及(2)促使电脉冲通过火花以形成从火花通路发出的初级冲击波。 冲击波反射器被配置为反射主冲击波的一部分,使得反射的冲击波集中在岩体内的焦点区域。