叠前地震数据的规则化

本文通过对动校正前积分法DMO原理的探讨，在借鉴Canning(1996)提出的利用DMO实现三维数据规则化的方法和Biondi(1998)提出的三维叠前地震数据方位角校正方法的基础上，从方位角校正的角度入手，利用DMO和DMO^-1相结合的处理流程对地震数据进行规则化，以得到新的规则的观测系统下具有所需特定方位角的观测数据。此方法可用于解决叠前地震数据道插值、陆上地震勘探中不规则观测数据的规则化和海上地震勘探中的羽状现象校正等问题，可将已有地震观测数据转变为特定观测系统的叠前地震数据，以便于某些处理方法的应用。此方法原理简单并具有广泛的适用性。

Regularization of pre-stack seismic data.

Through making an approach to the principle of DMO integration in pre NMO stage and on the basis of using the method that uses DMO for realization of 3 D data regularization presented by Canning(1996)and the method for azimuth moveout(AMO) of 3 D pre stack seismic data presented by Biondi(1998),starting from azimuth moveout,the paper regularized the seismic data by using the processing flow that combines DMO and inverse DMO -1 ,obtaining surveying data having needed spedified azimuth under new and regular geometry.The method can be used for solving the problems such as interpolating pre stack seismic data,regularizing the irregular surveying data in land seismic exploration and the correcting cable feathering in marine seismic exploration,etc, it also can transform the original seismic data to a new pre stack seismic data set with specified geometry suitable for some special processing methods. The method has advantages of both simple principle and wide application.