Abstract:Both source wave field and receiver wave field are continued along reverse-time direction by making use of two-way full wave equation and finite difference method.Then, the simult an eons migra tion of VSP data and surface reflection profiling data can be achieved with the use of Claerbout image conditions.The essential of this method is to use downgoing multiples generated from free surface so as to enlarge VSP image extent.The use of wid.aperture image method evenmakes single common-shot gather find quite good image result.
林小竹, 包吉山. VSP与地面地震资料的联合偏移处理[J]. 石油地球物理勘探, 1989, 24(3): 248-255,311.
Lin Xiaozhu, Bao Jishan. The simultaneous migration of VSP data and surface reflection profiling data. OGP, 1989, 24(3): 248-255,311.