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小波分析方法在数据处理中已得到成功广泛的应用,这主要得益于它的局部时频分析能力,但是小波分析对方向的表征能力有限。脊波变换具备优越的方向选择性能,能更好地处理含有线状变化特征的信号。本文针对低信噪比地震记录,尝试研究利用脊波变换方法对其进行处理,提高剖面资料信噪比,突出同相轴信息。在对南方某油田的实际地震资料的处理中,可以发现处理后的地震剖面同相轴品质及连续性有了明显改善,信噪比增强,分辨率相应提高,体现出了该方法相对常规小波分析方法的优越性。
The wavelet analysis method has been successfully applied widely in data processing, mainly due to its local time-frequency analysis ability, but the wavelet analysis has limited ability to represent the direction. Ridgelet transforms have superior directional selectivity and better handle signals containing linear variations. In this paper, aiming at low S / N ratio seismic records, this paper attempts to deal with the use of ridgelet transform method to improve the S / N ratio of profile data and highlight the information of the events. In the processing of the actual seismic data of an oil field in southern China, the quality and continuity of the processed seismic section of the seismic phase have been significantly improved, the signal-to-noise ratio has been enhanced, and the resolution has been correspondingly increased. This shows that the method is relatively conventional wavelet analysis The superiority of the method.