【摘要】 本文通过详细分析实际地震资料中出现的采集脚印特征,在综合分析现有的多种压制采集脚印的处理技术基础上,形成了配套的采集脚印压制处理技术系列:叠前数据规则化+叠后(叠前)时间偏移+三维叠后频率波数域滤波+中值滤波+f-x相干滤波。基本上实现了在相对保持振幅、频率、相位属性的前提下对采集脚印的有效压制,使得研究区K2目的层的沿层振幅、频率、相位属性特征凸显出来,为地质解释提供了较好的基础数据。更多还原

【Abstract】 This paper presents an integrated approach for acquisition footprint suppression in seismic data processing after a detailed analysis of acquisition footprints characteristics with the actual seismic data,and comprehensive studies of seismic data processing methods for acquisition footprints attenuation.This approach contains a data processing technology series,including pre-stack data normalization,post-stack(pre-stack) time migration,3D post-stack frequency wave number domain filtering,median filtering,and F-X coherent filtering.Our application in a work area shows that this approach effectively suppresses acquisition footprints in a way of relatively preserved amplitude,frequency,and phase property.The attributes of RMS amplitude,instantaneous frequency,and instantaneous phase of the target K2 are so clear that the data is advantageous to geological interpretation.更多还原