随着全球油气勘探程度的不断深入,深层地震勘探己成为世界上许多国家扩大油气生产储量的主要途径。然而,深层地震信号常常具有频率低、能量弱、信噪比低及子波畸变大等特点,给野外地震采集、室内地震资料处理和解释都提出了一个较难的课题。本文介绍了利用叠前深度偏移技术解决深层地震资料处理中的速度分析和偏移成像问题。 With the deepening of global oil and gas exploration, deep seismic exploration has become the main way for many countries in the world to expand their oil and gas production reserves. However, deep seismic signals often have the characteristics of low frequency, weak energy, low signal-to-noise ratio and large wavelet distortion. Therefore, it is a difficult task for field seismic acquisition, indoor seismic data processing and interpretation. This paper presents the use of prestack depth migration to solve velocity analysis and migration imaging in deep seismic data processing.