CRS共反射面元叠加技术在加蓬地区的应用

CRS共反射面元叠加方法是一种基于非均匀介质,且不依赖于宏观速度模型,由反射面元的位置、倾角、曲率三参数代替叠加速度来刻画反射界面的成像方法。它利用相邻道集数据之间的相似性,尽可能地集中邻域道集的能量参与叠加,从而压制了随机噪声,增强了反射波同相轴的连续性,很好地提高了地震资料的信噪比。加蓬地区的构造复杂、地震采集资料信噪比低,通过CRS共反射面元叠加技术的应用,成像效果较常规地震资料处理方法的成像效果有显著的提高,说明该技术值得在类似复杂区域进行推广和应用。

On Application of CRS Stacking Technology in Gabon Area

CRS（Common Reflection Surface）stacking technology is used to describe reflecting imefface based on inhomo- geneous medium without macroscopic velocity model with three reflection surface parameters of location, dip and curva- ture taking place of stacking velocity. It makes use of similarity among adjacent gather data to concentrate neighborhood gather energy as far as possible on stacking, thus suppressing stochastic noise, enhancing the continuity of reflection wave event and improving SNR of seismic data. Complex geological structure in Gabon area leads to low SNR of seismic data The application of CRS stacking technology in this area makes its imaging better than that by conventional pro- cessing method of seismic data This shows that it is worth expanding the technoloR7 to similar comolex areas.