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为了实现资源的接替,我国的资源勘探逐步进入西部领域。由于激发和接受的条件较差,给野外采集工作带来了新的困难,导致采集到的原始野外资料信噪比较低,针对工区低信噪比地震资料反射信号较弱,声波面波干扰严重等特点。本文首先深入分析了低信噪比资料的特点,在此基础上结合适合低信噪比地震资料的处理方法流程,优选二维的F-K滤波对干扰波进行压制,处理前后进行对比,通过对比分析它们的适应性,得出一个适合于研究区低信噪比地震资料的滤波方法。
In order to achieve the succession of resources, China’s exploration of resources gradually into the western areas. The poor excitation and reception conditions have brought new difficulties to the field collection, resulting in a low signal-to-noise ratio of the original field data collected. The reflection signal of low SNR seismic data in the work area is weak, and the SAW interference Serious and so on. In this paper, the characteristics of low signal-to-noise ratio (SNR) data are analyzed. Based on this, combined with the flow of processing method suitable for low SNR seismic data, two-dimensional FK filtering is used to suppress the interference wave before and after processing. Their adaptability leads to a filtering method suitable for low S / N seismic data in the study area.