叠前地震沿层处理

Prestack seismic processing along layer

叠前地震沿层处理是面向目标地层设计的专门处理方式,通过沿层动校正形成共中心点(CMP)道集,通过沿层叠前时间偏移形成共成像点(CIP)道集,通过沿层反射波追踪形成共反射点(CRP)道集,结合其他功能,构成沿层处理技术系列。沿层处理的本质是把反射波作为一个整体看待,与传统时空域地震处理相比,能更精细地表现反射波的自然特征,从而为利用叠前信息提供可靠的基础资料。

The seismic processing along layer is a special method aimed to target layer, the CMP is formed by NMO along layer, the CIP is formed by PSTM along layer, and the CRP （Common Reflection Point ） is formed by tracing reflection along layer, the series of the processing technology along layer is composed with other functions. The es-sence of along layer processing is to treat reflection as whole waveform, compared with the traditional seismic pro- cessing in time-space domain, it shows the natural features of the reflection meticulously, and provides reliable product for utilization ofprestack information.