摘要
偏移速度是影响偏移成像质量的重要因素之一,常规调整偏移速度的方法处理效率很低。提出了一种提高偏移成像效率的简易方法,即通过对CDP间距Δx乘上一个相应比例因子来调整偏移速度,进而提高叠后偏移成像效率的方法。该方法简单易行,可以大大提高地震资料处理效率。
Migration velocity is one of the important factors to affect the quality of seismic imaging,and the conventional methods to adjust the velocity are very low in efficiency.A simple method to improve efficiency of migration imaging is developed,which can adjust migration velocity by mulyiplying CDP interval,Δx,and a relevent scaling factor,and then improve efficiency of poststack migration imaging.This method is simple and easy to be applied,and can greatly improve the efficiency of seismic processing.
出处
《中国海上油气》
CAS
北大核心
2010年第4期240-242,共3页
China Offshore Oil and Gas
关键词
叠后偏移
成像效率
偏移速度
CDP间距
简易方法
poststack migration
imaging efficiency
migration velocity
CDP interval
simple method
