The paper Reverse Time Migiration of Mulitples for Subsalt Imaging by LIU Yike, CHANG Xu et.al is selected bright spot by The Leading Edge, which is published on Geophysics.
The reviewer considers that the authors’ spectacular subsalt image is due not only to the use of multiples but also to the manner in which the multiples are used. Rather than back-propagating the recorded data on the receiver side of the RTM, the authors back-propagate the predicted multiples. On the source side of the RTM, the authors use the recorded data as source for forward modeling instead of using an impulsive source wavelet. To implement their ideas in RTM workﬂow, practically no extra coding would be required.