Discussion on Multirate Seismic Exploration Technique(MrSET)
Time sampling and spatial sampling problems are the basic concerns of seismic exploration.The latter includes regular sampling,non-uniform(irregular)sampling and random sampling and so on.Based on the fact that the seismic wave field is band-limited,the spatial domain is heterogeneous,and underground structures are complex,the Multirate Seismic Exploration Technique(MrSET)is introduced into seismic exploration,trying to integrate different spatial sampling methods.This paper provides five criteria for the geometry design of multirate seismic exploration,introduces the basic methods of data processing,and summarizes seven technical advantages of MrSET based on the results of data processing of both synthesized and real data.Compared with regular sampling of the same trace density,MrSET can better meet the requirements of full sampling to the complex seismic wave fields,weak energy diffracted waves and scattered waves,and improve imaging precision.It is promising in becoming a routine technique for(onshore and marine)node seismic exploration with further research.
万方数据
维普
