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随着油气勘探工作的不断深化,地震资料处理中对地震低频信息重要性的认识越来越深入.低频面波在地震资料处理中作为一种干扰波,常规的区域滤波去除方法,在去除面波干扰的同时,面波区域内有效信号的低频信息也相应得到去除.本文提出的基于频率约束的能量置换面波压制技术,其基本思想是依据面波与有效信号在频率及能量两方面的差异,在面波频宽内对面波进行有效压制.这种方法不仅保证了面波的压制效果,而且几乎不损失面波区域内的低频有效信号,在实际资料的应用中得到了良好的应用效果.
With the continuous deepening of oil and gas exploration, the understanding of the importance of low-frequency seismic information in seismic data processing has become more and more profound.As a kind of interference wave and conventional regional filtering method in seismic data processing, At the same time, the low frequency information of the effective signal in the area of surface wave is correspondingly removed.The basic idea of the energy replacement surface wave suppression technology based on frequency constraint proposed in this paper is based on the principle of surface wave and effective signal in both frequency and energy Which can effectively suppress the surface wave in the surface wave bandwidth.This method not only ensures the suppression effect of the surface wave but also hardly loss the effective signal of low frequency in the area of the surface wave and is well applied in the practical application of the data effect.