Abstract：Near surface high resolution imaging in seismic data processing is attracting great attention. Reverse time migration (RTM) from two way wave equation is considered a good way to image the steep structure. However low frequency noise generated during the RTM imaging process is relatively high, which affects high resolution imaging of near surface. To challenge this problem, we propose in this paper a least square reverse time migration (LSRTM) method. Test results on a complex near surface velocity model indicate that LSRTM is much better than RTM for structure high resolution imaging and energy preservation.
黄建平, 曹晓莉, 李振春, 孙陨松, 李闯, 高国超. 最小二乘逆时偏移在近地表高精度成像中的应用[J]. 石油地球物理勘探, 2014, 49(1): 107-112.
Huang Jianping, Cao Xiaoli, Li Zhenchun, Sun Yunsong, Li Chuang, Gao Guochao. Least square reverse time migration in high resolution imaging of near surface. OGP, 2014, 49(1): 107-112.
