石油物探2017，Vol.56Issue(6)：812-819,852,9.DOI:10.3969/j.issn.1000-1441.2017.06.006
基于速度加权叠加和AVO分析的叠前地震数据插值方法
Pre-stack seismic data interpolation based on velocity-weighted stack and AVO analysis
摘要
Abstract
This paper presents a method for the extrapolation and interpolation of CMP traces using velocity weighted stack and AVO analysis.The method rebuilds seismic traces with multi-trace signals via gradually varied stacking velocity scanning and weighted stack.Then,the amplitude of the rebuilt seismic traces is corrected based on the amplitude variation characteristics of events in the seismic traces obtained through the AVO analysis.To some extent,the dynamic characteristics of the seismic signal are considered when rebuilding missing traces,so the relative amplitude relationship of the signal in the rebuilt seismic traces is in accord with field seismic records.The synthetic and field data tests show that,the missing traces can be rebuilt with high precision using the proposed method,using either primary or multiple waves.关键词
道外推/道内插/速度加权叠加/AVO分析/同相轴追踪/缺失地震道/高精度重建Key words
trace extrapolation/trace interpolation/velocity-weighted stack/AVO analysis/event tracing/missing traces/high precision rebuilding分类
天文与地球科学引用本文复制引用
谭军,宋鹏,李金山,王磊..基于速度加权叠加和AVO分析的叠前地震数据插值方法[J].石油物探,2017,56(6):812-819,852,9.基金项目
国家科技重大专项(2016ZX05027-002)、国家自然科学基金项目(41574105)、青岛海洋科学与技术国家实验室鳌山科技创新计划项目(2016ASKJ13)共同资助.The research is financially supported by the National Science and Technology Major Project of China (Grant No.2016ZX05027-002),the National Natural Science Foundation of China (Grant No.41574105),the Scientific and Technological Innovation Project of Qingdao National Laboratory for Marine Science and Technology (Grant No.2016ASKJ13). （2016ZX05027-002）
