基于优化交错网格有限差分法的VSP逆时偏移

刘炜, 王彦春, 毕臣臣, 徐仲博

Reverse time migration of VSP data based on the optimal staggered-grid finite-difference method

LIU Wei, WANG Yan-Chun, BI Chen-Chen, XU Zhong-Bo

图16 平滑后的Marmousi模型及其逆时偏移结果 a—速度;b—密度;c—地面地震数据逆时偏移结果;d—VSP数据逆时偏移结果

Fig.16 The smoothed Marmousi model and its corresponding RTM results a—velocity;b—density;c—RTM results of conventional surface seismic data;d—RTM results of VSP data