Due to the shallow burial depth of the target layer in HQ work area and a large range of empty shot sections affected by complex surface conditions,conventional velocity modeling methods in 3D seismic data processing have low accuracy and poor imaging effects.By summarizing and analyzing the differences between the preparation of full waveform inversion data and conventional data processing,the full waveform inversion technology based on Armousi model will be tested and applied,and the application effect will be evaluated.The application results show that the full waveform inversion technology can accurately restore the structure and properties of underground media under complex surface conditions,establish a high-precision underground velocity model,and improve the imaging effect of pre-stack depth migration.The research re-sults prove the superiority of full waveform inversion technology,and it has a good reference in complex sur-face area.
关键词
陆地三维地震/速度建模/叠前深度偏移/全波形反演
Key words
land 3D seismic data/velocity modeling/pre-stack depth migration/full waveform inversion
万方数据