物探与化探2017，Vol.41Issue(1)：171-176,6.DOI:10.11720/wtyht.2017.1.27
叠前时间偏移在煤田地震资料处理中的应用
The application of prestack time migration to coalfield seismic data processing
摘要
Abstract
Prestack time migration can realize the fine imaging of geological structure and also provide a high resolution imaging section for lithological reservoir prediction.In order to apply the prestack time migration technology effectively to the coal seismic data processing,the authors,on the basis of the characteristics of coalfield seismic data,studied a series of prestack processing technologies,introduced the tomographic inversion method by using first arrival wave and reflected wave to establish fine migration velocity field,and built prestack time migration work flows and process measures which could be used to actual data.The actual data imaging results show that,compared with poststack migration method,the prestack time migration imaging result has greatly improved the imaging precision and amplitude preservation,which is helpful to the fine structure interpretation and lithological inversion of coalfield seismic data.关键词
叠前时间偏移/煤田地震资料/层析反演/保幅偏移Key words
prestack time migration/coalfield seismic data/tomographic inversion/amplitude preservation migration分类
天文与地球科学引用本文复制引用
李江,李庆春,张向辉,李文博..叠前时间偏移在煤田地震资料处理中的应用[J].物探与化探,2017,41(1):171-176,6.基金项目
中国地质调查局地质调查项目(DD20160060) （DD20160060）
国家自然科学基金项目(41374145) （41374145）
