克希霍夫叠前时间偏移技术及应用

Kirchhoff pre -stack time migration technique and its
application

 杨春梅1 颜军1 陈天铸

中原油田分公司物探研究院，河南濮阳457001 中原石油勘探局地球物理勘探公司，河南濮阳457001)

 中原地区地质构造复杂，小断块较为发育，原始地震资料存在着严重的线性干扰和多次
波。针对这些原始资料的特点，首先消除线性干扰和多次波的影响，然后利用克希霍夫叠前时间偏移对
数据进行处理，并进行了偏移孔径和频率限值的试验，最终处理效果明显，同时交叉地层速度矛盾性问
题也得到了有效的解决。

The geological structure is complex in Zhongyuan area, and
there is a lot of small block faults in this area. At the same time,raw
seismic data are severely dominated by linear noise and multiple.
According to the characteristics of raw data in this area, firstly linear
noise and multiple are removed, then Kirchhoff pre -stack time
migration (KPSTM) is carried out on the data, while aperture and
frequency limits are tested. The final processing effect is obvious and
velocity picking conflict problem is effectively fixed.