【摘要】 为了研究声波在井内的声场传播特性,根据井孔声场传播原理,利用实轴积分法模拟单极子声源的声场响应,研究了声源频率、井径、地层参数对全波列信号的影响,得出:声源频率应该选择8～12k Hz;井径应该选择较小尺寸;慢速地层中接收器不能接收到横波;根据全波列波形图可以判断地层信息。更多还原

【Abstract】 In order to study the sound field propagation characteristics of acoustic wave in the well, the sound field response of the monopole source was simulated by the real axis integration method according to the principle of sound field propagation. The effects of sound source frequency, well diameter and formation parameters on the full wave train signal were studied. It’s concluded that the sound source frequency should be 8-12 kHz; the well diameter should be chosen to be smaller; the receiver in the slow formation cannot receive the transverse wave; the formation information can be judged according to the full wave train waveform.更多还原