地球物理中波动方程有限差分偏移模型应用及实验对比  

Application and experimental contrast of wave equation fi nite-difference migration model in geophysics

作　　者：黄智海 周艳玲 赵峰 赵杰 

机构地区：[1]吉林省地质工程勘察院,吉林长春130001

出　　处：《吉林地质》2014年第2期65-68,共4页Jilin Geology

摘　　要：浅层地震反射法获得反射地震剖面发生偏移是地震数据处理过程的中心环节。本文建立了针对不同要求所需要的地层及速度模型,合成了用于偏移处理的叠后自激自收剖面。利用15°和45°有限差分法及Stolt方法、相移法对剖面进行了处理,并将处理的结果进行了对比,对算法间的差异进行了总结。It is the central link of seismic data processing that obtains the seismic relfection proifle deviation with shallow seismic relfection method. In this paper, the authors established needed stratum and velocity models according to different requirements, composed stacked transmitting and receiving proifle for the excursion processing. The proifles were treated with 15° and 45° ifnite-difference method, Stolt method, and phase shift method, the results of treatment were compared, and the difference between algorithms were summarized.

关 键 词：偏移 有限差分 模型 

分 类 号：P631.42[天文地球—地质矿产勘探]