石油地球物理勘探2009，Vol.44Issue(5)：590-596,602,8.
时间剖面上的假构造及其解决方法
False structures on time domain seismic sections and corresponding resolutions
陈海清 1戴晓云 2潘良云 2赵叶平 2何丽红 2陈元忠 2贺保卫 2王云波 2覃素华2
作者信息
- 1. 中国海洋大学,山东青岛,266100
- 2. 河北省涿州市东方地球物理公司研究院,河北涿州,072751
- 折叠
摘要
Abstract
False structure (or structure high point migration) on seismic sections is a problem which always perplexes the seismic interpreters. In this paper the authors conducted several case studies and believed that the false structure (or structure high point migration) always exist on seismic sections in some certain circumstances, for example, when salt domes, regional igneous bodies, lower blocks of reverse fault, steep upper layers or rapid thickness change of upper layer exist in upper layer, the false structure can often be found in the lower layers. As the false structures always exist on seismic sections and they are hardly avoided in seismic data processing, the authors believe that the pre-stack depth migration (PSDM) is an ideal tool to solve the problem, however in some circumstances where PSDM can not be done, the authors then suggest to try to obtain best possible processing results through variable velocity time-depth conversion which is based on the accurate velocity field.关键词
时间剖面/假构造/地震资料解释/速度横向变化/叠前深度偏移/变速时深转换Key words
Seismic section in time domain/ false structure/ seismic data interpretation/ lateral velocity change/ pre-stack depth migration/ variable velocity time-depth conversion分类
天文与地球科学引用本文复制引用
陈海清,戴晓云,潘良云,赵叶平,何丽红,陈元忠,贺保卫,王云波,覃素华..时间剖面上的假构造及其解决方法[J].石油地球物理勘探,2009,44(5):590-596,602,8.
