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楚泽涵等：声波频谱测井探测深度的理论及实验考察，测井技术，１９９６（６）２０，４１１～４２１。对声波频谱测井的探测深度进行理论研究的结果表明声波测井的探测深度与声信号的频率有关，而与源距无关。滑行纵波、滑行横波和瑞利（Ｒａｙｌｅｉｇｈ）波在井壁上的探测深度也不尽相同。在实验中用不同厚度玻璃板观测滑行波的变化规律，并观测两层介质中滑行波与两种介质厚度的关系。实验结果与理论计算结果一致。本文定义用轴向传播转换模式工作的声波测井的最大探测深度为声波波长的３倍，而上述方式的声波测井，其声波能量的大部分集中在井壁附近１倍波长范围内，因此可将其定义为声波测井的探测范围。
Chu Zehan et al .: Theoretical and experimental investigation of sounding spectrum logging depth, logging technology, 1996 (6) 20,411 ~ 421. The theoretical study of the sounding depth of the acoustic spectrum logging results show that the sounding depth of acoustic logging is related to the frequency of the acoustic signal and not to the source distance. Glide waves, gliding waves and Rayleigh waves have different exploration depths on the borehole wall. In the experiment, the variation law of the gliding wave was observed with glass plates with different thicknesses and the relationship between the gliding wave and the thickness of the two media was observed. The experimental results are consistent with the theoretical calculation. This paper defines that the maximum sounding depth of acoustic logging working in axial propagation mode is three times of the acoustic wavelength. However, most of the sonic energy of acoustic logging in the above method is concentrated in the range of 1 wavelength near the borehole wall. It can be defined as the acoustic logging range.