Accurate conversion between offset image gathers and angle image gathers
Jianming Sheng · 2009
Most migration methods produce either common-offset-gathers (COG) or common-angle-gathers (CAG) gathers. But none produce both, that is until now. We have developed an accurate and efficient method that converts common offset image gathers to common angle image gathers, or vice versa. The practical uses of the method are for velocity analysis or AVO studies using existing commercial toolkits.