石油物探2017，Vol.56Issue(2)：203-209,7.DOI:10.3969/j.issn.1000-1441.2017.02.006
基于小波分频技术的地层Q值补偿方法研究
The study of formation Q value compensation method based on wavelet frequency division technology
摘要
Abstract
The method of formation Q value extraction based on wavelet frequency division technology mainly divides seismic data into different frequency segments for the different target layer,to avoid the interaction of different frequency component in seismic data.By specifically treating the frequency information from target layer,the stability of the formation Q value is improved.Based on this,we aim at the shallow,middle and deep,deep target layer,using wavelet frequency division technology to divide the data into different frequency bands,obtain seismic data with different frequency interval of the target layer.Then we use the extraction technology of formation Q value to extract Q value and finally amplitude compensation and phase compensation are carried out respectively using the Q value.The results of model test and example analysis show that the method can effectively compensate the seismic data from different target layers,which makes the reflection wave shape consistent,the main frequency improved,the frequency band broadened,thus improving the quality of seismic data.关键词
小波变换/分频技术/目标层/品质因子/振幅补偿/相位补偿Key words
wavelet transform/frequency division technology/target layer/quality factor/amplitude compensation/phase compensation分类
天文与地球科学引用本文复制引用
王小杰,栾锡武..基于小波分频技术的地层Q值补偿方法研究[J].石油物探,2017,56(2):203-209,7.基金项目
国家自然科学基金(41506084)和公益性行业科研专项(201511037)共同资助.This research is financially supported by the National Natural Science Foundation of China (Grant No.41506084) and the Public Science and Technology Research Funds Projects (Grant No.201511037). （41506084）
