复杂山地构造综合模型建立与地震波模拟

Complex mountain 2D-model building and seismic wave modeling

本文基于地震、钻井、微测井、小折射等资料建立了具有典型中国西部山地特征的复杂构造模型(BGP模型),该模型具有地表高程变化大、近地表速度横向变化剧烈和深部构造复杂等特点。基于该模型应用有限差分方法正演了3套地震波模拟记录,可用于测试山地地震数据处理中去噪、静校正、Q吸收补偿及成像等处理方法的效果,为西部复杂地区的地震资料处理提供参考。

We build a complex synthetic model(BGP model)of the Chinese western mountain based on seismic,drilling,logging,and refraction data.The synthetic model is characterized by drastic change of surface elevation,severe lateral variation of nearsurface velocity,and deep complex structure.Finite difference forward modeling of 3 synthetic data sets on this model is conducted.The results can be used to test the effect of processing methods for mountain seismic data,such as noise attenuation,static correction,Q absorption compensation and migration.It provides the reference for seismic data processing of Western China.