地震资料分频处理效果

Seismic Data Scaling Down Processing Effect

在地震资料信噪比较低,常规处理效果不理想的情况下可考虑采用分频处理。首先根据频谱分析,确定频带范围,再按反射波在频带内的能量分布,确定分频频带。充分利用各个频带的反射能量,在每个频带内进行分频精细处理,提高分辩率,达到分辩较小断层的目的。

When seismic data signal to noise ratio is low and conventional processing effect is not good, scaling down processing may be introduced in data processing. Firstly, according to analysis determine wave band spectrum, then by virtue of energy distribution of reflection wave in spectrum decide the scaling down wave band.Take full advantage of reflective energy in each wave band;carry out precision process in every wave band to raise resolution for the purpose of to minor fault finding.