相位分离提取子波

THE EXTRACTION OF WAVELET BY PHASE SEPARATION

胜利油田地质科学院

本文提出一种新的子波提取方法。该方法通过对地震记录自相关的数学处理和相位分离,可避免常规反褶积方法所具有的反射系数为白噪声和子波是最小相位的假设,从而能改善地震记录的分辨率。文中还通过对合成记录的试验与实际地震资料的处理,表明该方法是适用的。

A new approach for extracting seismic wavelet is presented in this paper. By autocorrelation and phase separation of seismic traces, the assumption that the reflection coefficients should be the minimum phase and the noise should be white for the conventional deconvolution would never be a necessary assumption again. Therefore, the resolution of seismic records would thus be improved.Also,the new approach has proved itself practicable as a result of a number of experiments on synthetic seismograms and the actual seismic data processing made.