【摘要】 井间地震波场丰富,含有反射波、直达波和管波等多种波型。为实现井间地震成像,首先对井间地震资料进行波场分离,提取反射波信息;其次通过直达波层析成像估算偏移速度场;最后利用Gazdag相移方法对实际资料进行偏移处理,获取井间高分辨率成像剖面。更多还原

【Abstract】 Crosswell seismic wavefield contains different wave such as reflection waves, direct waves, and tube waves. To realize crosswell seismic imaging, we firstly pick up reflection waves through wavefield separation of the crosswell seismic data; secondly estimate migration velocity field with the help of direct wave tomography.and finally obtain high resolution crosswell imaging sections using Gazdag phase shift method.The method has been tested on theoretical and real data.更多还原