Abstract:Study of relationship between bin size and resolution of seismic imaging is an important task in 3-D high-resolution data acquisition.Among which reducing bin size not only improving lateral spatial resolution, but also improving vertical time resolution is controversial issue produced during the task studied and practical tests. In combination with geologic properties in eastern China, the paper designed two abstract geologic models by using 3-D seismic physical modeling technique to study the influence of CMP bin size on the resolution of seismic imaging, and obtain some useful conclusions: for flat area, the bin size does not affect the vertical resolution of seismic imaging; for dip beds, it should do more experiments to study; reducing bin size can improve lateral resolution, but there is a limit to the improvement; it can optimize the bins in different sizes under different preconditions