Abstract：In conventional mountain seismic data processing,the velocity analysis,normal moveout correction and stacking are conducted on CMP plane.Regarding the difference method post-stack time migration in mountain seismic data processing,under the conditions of irregular surface the zero velocity method for difference method post-stack time migration was studied and the migration testing was conducted by using different replacement velocity datasets based on theory model and field data.The studies show that filling replacement velocity between irregular surface and horizontal datum in migration processing could cause imaging error,while filling zero velocity later could obtain accurate imaging results.
李晶, 王成祥, 李军茹, 王艳红, 安荣霞, 林绍征. 山地地震资料零速度层差分法叠后时间偏移[J]. 石油地球物理勘探, 2010, 45(3): 366-372.
Li Jing, Wang Cheng-xiang, Li Jun-ru, Wang Yan-hong, An Rong-xia, Lin Shao-zheng. Zero velocity layer difference method post-stack time migration for mountain seismic data. OGP, 2010, 45(3): 366-372.
