摘要
在野外地震数据采集参数试验中,激发因素的选择主要通过分频扫描、能量、信噪比或频谱等单一因素的定性或定量分析来实现,但这种分析的结论往往因人而异。本文基于同一震点激发、同排列接收、不同炮激发子波相位相同的假设,利用相关原理,对试验点不同激发因素获得的地震数据进行相关分析,再依据相关系数和叠加相关系数的大小,判别、确定最佳激发因素。文章最后给出的应用实例验证了该方法的应用效果。
During parameter tests for seismic data acquisition in the field,source parameters determination are made mainly through qualitative & quantitative analyses to frequency scan,energy,signal to noise ratio or frequency spectrum.Analysis results are often different because of different analyzers.The paper discusses parameter optimizing on the following assumptions: with repeated shootings at the same position,receiving with the same spread and same wavelet phase of different shots,and adopting correlation theory,correlations of seismic data with different source parameters are analyzed.Then the optimum source parameters are determined by comparing the correlation coefficients and stack correlation coefficients.Finally application examples are given.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2011年第2期176-181,155-156,共6页
Oil Geophysical Prospecting
关键词
相关系数法
激发因素
地震数据采集
同点激发
同排列接收
同相位子波
叠加相关系数
correlation coefficient method,source factors,seismic data acquisition,repeated shootings at same position,same spread receiving,same phase wavelet,stack correlation coefficient
