共反射面元叠加方法综述

Overview of common reflection surface stacking method

在地下介质复杂的情况下,由于常规叠加方法的假设条件不满足,导致叠加效果不甚理想.共反射面元(CRS)叠加是一种完全由数据驱动、不依赖于宏观速度模型的地震成像技术,不仅可以得到高质量的零偏移距剖面,而且可以得到多个有用的波场属性参数剖面,被视为深层和复杂地区地震数据处理的重要发展方向.本文对共反射面元叠加技术的基本原理、发展历程、主要类型及应用进行了总结,并对今后的发展趋势进行了预测.

The conventional stacking methods are not suit to the complex medium because the subsurface condition are not fit for conventional stacking assumptions. Common Reflection Surface stacking method is a data-driven macro- velocity independent stacking technique with which not only the seismic profile can be obtained, but also several useful parameter profiles of wave field can be obtained. This method is thought as a very important research subject used to solve the imaging problem of deep underground and complex structures. In this paper, we give an overview on basic theory, development history, main types and applications of common reflection surface stacking method. At last, we predicte its future development trends.