拓频地震数据在测井约束反演中应用的效果分析

地震资料的分辨率影响地震反演的储层预测精度。拓宽地震频带是地震反演工作之前的一个重要步骤。尝试子波压缩技术。该技术是在叠后地震资料上直接进行拓频,拓频处理后的地震数据频带比常规处理的地震数据带宽高出约20 hz,在此基础上综合利用测井资料的纵向分辨率和地震的横向采样点密集的优势,进行地震反演。经过3口校验井的检验,砂体预测结果吻合程度较高,说明拓频处理后的地震数据在一定程度上提高了地震分辨率。

Analysis on application efficiency of frequency-broadening seismic data in logging constrained seismic inversion

The resolution of seismic data inversion effects of seismic reservoir prediction, seismic inversion to broaden seismic frequency is an important step of work. This attempt to wavelet compression technology, this technology is in the post-stack seismic data directly on the extension frequency, frequency after processing the seismic data bandwidth than conventional processing seismic data high bandwidth of about 20Hz, on the basis of comprehensive utilization of vertical resolution of logging data and seismic lateral sampling point concentrated advantage, seismic inversion well, after 26 port calibration test, sand body prediction results coincide with higher levels, illustrate the extension frequency after processing the seismic data to a certain extent improve the seismic resolution.