公开(公告)号：WO2013102761A2

公开(公告)日：2013-07-11

申请号：PCT/GB2013/050004

申请日：2013-01-04

Applicant: THE TECHNOLOGY PARTNERSHIP PLC

Inventor： PALMER, Tim ,  TEGERDINE, David ,  BEAN, Edward ,  LLORENTE, Fernando Rodriguez

IPC: E21B47/16

CPC classification number: E21B47/16 ,  E21B47/14 ,  E21B47/18 ,  E21B47/182 ,  G01V1/223 ,  G01V1/44

Abstract: A method and apparatus for generating, propagating, encoding, decoding, modulating and detecting acoustic signals in a well borehole that comprises a signal generator located at a first location for generating an acoustic source signal; a medium for the propagation the acoustic source signal to a second location and the propagation of the reflections and partial reflections of acoustic signals as it propagates through the medium; an apparatus to remove a detectable amount of energy from propagated acoustic signals; a controllable signal modulator for attenuating the transmitted acoustic source signal; and a receiver for receiving the modulated acoustic signals reflected, partially reflected or both by at least one reflector respectively located at one or more other locations.

Abstract translation: 一种用于在井眼中产生，传播，编码，解码，调制和检测声信号的方法和装置，其包括位于第一位置处的信号发生器，用于产生声源信号; 用于将声源信号传播到第二位置的介质和当声信号传播通过介质时的声信号的反射和部分反射的传播; 从传播的声学信号中去除可检测量的能量的装置; 用于衰减所传输的声源信号的可控信号调制器; 以及接收器，用于接收被分别位于一个或多个其它位置处的至少一个反射器部分反射或二者反射的调制声信号。