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Fluidic mud pulse data transmission apparatus
Fluidic mud pulse data transmission apparatus
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机译:流体泥浆脉冲数据传输装置
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摘要
A mud pulse transmitter is presented for transmitting information by pressure pulses to the surface during the drilling of a borehole. A vortex valve is controlled by a fluidic feedback oscillator to generate the mud pulses. The oscillator frequency may be varied or the oscillator turned on and off by valves in the feedback paths of the oscillator, thereby permitting the transmission of information.
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