摘要
文中提出采集纵波和转换波资料的联合观测系统,并全面地叙述了其野外试验情况。利用这种联合观测系统能够迅速而有效地获得纵波和转换波。文中还给出计算转换波时距曲线的一种新方法。根据此法建立了转换波处理的两个模块(转换波动校正和转换波常速扫描),再结合其它常规模块构成了转换波处理新流程。用它处理出良好的转换波叠加剖面,其形态与纵波叠加剖面一致。最后,根据这两种剖面算出了波速比Vs/Vp的变化曲线,它将有助于岩性解释。
Abstract
Using the combined layout chart of two components, the data acquisition by compressional wave and converted wave is considered effective and economic. In this paper, a computing method for travel time curve of the converted wave is suggested, based upon which several processing modules for converted wave, such as constant velocity scanning, normal moveout correction, as well as a specific processing sequence were established for processing the field data. The stacked sections of converted wave are proved consistent in pattern with that of the compressional wave.At the end of this paper, the varied curves of wave velocity ratio are calculated based on the two different sections. Hopefully, it will help to interprete the lithology.
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