克希霍夫叠前时间偏移技术及应用

中国石油勘探 ›› 2005, Vol. 10 ›› Issue (6): 48-50,9.

克希霍夫叠前时间偏移技术及应用

杨春梅,颜军,陈天铸

中原油田分公司物探研究院;中原油田分公司地质调查处河南省濮阳市457001;河南省濮阳市457001

出版日期:2005-12-15 发布日期:2005-12-15

Kirchhoff Prestack Time Migration Technology and Its Application

Yang Chunmei,Yan Jun and and Chen Tianzhu

Yang Chunmei1, Yan Jun1 and Chen Tianzhu2 / 1 Geophysical Research Institute of Zhongyuan Oilfield Company., Sinopec, Puyang City, Henan Province 457001;2 Geological Survey Department, Zhongyuan Oilfield Company,Sinopec,Puyang City,Henan Province 457001

Online:2005-12-15 Published:2005-12-15

摘要/Abstract

摘要： 中原油田东濮凹陷地质构造复杂,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。

关键词: 克希霍夫叠前时间偏移, 多次波, 线性干扰, 偏移孔径, 频率

Abstract: The geological structure is complex in Zhongyuan area, and there are a lot of small fault-blocks in this area, at the same time original seismic data are severely dominated by linear noise and multiple waves. According to the characteristic of original seismic data in this area, firstly linear noise and multiple are removed, then Kirchhoff prestack time migration (KPSTM) is carried out on the data, whilst aperture and frequency limits are tested. The final processing effect is obvious, and velocity picking conflict problem in crossing strata is effectively resolved.

Key words: Kirchhoff prestack time migration (KPSTM), multiple wave, linear noise, migration aperture, frequency

中图分类号:

P631.4

杨春梅, 颜军, 陈天铸. 克希霍夫叠前时间偏移技术及应用[J]. 中国石油勘探, 2005, 10(6): 48-50,9.

Yang Chunmei, Yan Jun and and Chen Tianzhu. Kirchhoff Prestack Time Migration Technology and Its Application[J]. China Petroleum Exploration, 2005, 10(6): 48-50,9.

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