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针对反褶积的特点,其中的参数预测距会影响到地震资料的分辨率和信噪比,但是分辨率与信噪比在地震资料处理中是矛盾且不可兼得的,因此选择一个合适的预测距显得尤为重要。本论文提出地表一致性反褶积的预测距和当前区域的地震子波自相关函数存在一定的关系,当预测距选择合适时,既能提高地震资料的分辨率,又能兼顾信噪比。利用Promax软件,通过桑植-石门地区的模型资料测试,当预测距取在自相关函数的第一个零点或第二个零点值时,既能提高地震资料的分辨率,又能兼顾信噪比。
In view of the characteristics of deconvolution, the parameter prediction distance among them will affect the resolution and signal-to-noise ratio of seismic data. However, resolution and signal-to-noise ratio are contradictory and incompatible in seismic data processing. Therefore, Prediction distance is particularly important. In this paper, we propose that there is a certain relationship between the prediction distance of the surface-consistent deconvolution and the seismic wavelet of the current area. When the prediction distance is suitable, the resolution of the seismic data can be improved and the signal-to-noise ratio can be balanced. Promax software is used to test the model data in the mulberry - Shimen area. When the prediction distance is taken from the first zero point or the second zero point of the autocorrelation function, the resolution of the seismic data can be improved and both the signal noise ratio.