面向盐下构造的染色逆时偏移成像

赵国勇, 张剑, 刘畅, 任一, 邢伯申, 李自正, 曲英铭

Staining algorithm-based reverse time migration imaging for pre-salt structures

ZHAO Guo-Yong, ZHANG Jian, LIU Chang, REN Yi, XING Bo-Shen, LI Zi-Zheng, QU Ying-Ming

图14 随机误差分析 a—引入±5%的随机误差的偏移速度场;b—引入随机误差后的速度场与真实速度场的差异;c—基于随机误差偏移速度场的常规逆时偏移成像结果;d—基于随机误差偏移速度场的染色逆时偏移成像结果

Fig.14 Random error analysis a—migration velocity field with ±5% random error;b—difference between the velocity field after introducing random errors and the true velocity field;c—RTM based on random error migration velocity field; d—stained RTM based on random error migration velocity