石油物探2018，Vol.57Issue(2)：231-236,6.DOI:10.3969/j.issn.1000-1441.2018.02.008
基于初至信息的可控震源和炸药震源地震资料匹配滤波技术
Matching filter of vibroseis and dynamite source seismic data using first arrival information
摘要
Abstract
Phase difference is prevalent in the seismic data collected jointly using a dynamite source and vibroseis under complex surface conditions.Overcoming this problem is a challenge because the commonly used method of reversing the polarity or adjusting the phase during data processing cannot provide an effective result.This paper thus proposes a matching filter scheme applied on vibroseis data using first arrival events.First,the scheme carries out picking,flattening,stacking and wavelet extracting on the first arrival events,which are implemented on the dynamite source and vibroseis data from the same position respectively.Next,the difference between the first arrival wavelets of the vibroseis and dynamite data is used to derive the matching operator.Finally,through the matching operator convolved with the vibroseis data,the phase consistency of the two sources of data is realized.The application results on the field data showed that the proposed scheme had a better processing effect compared with conventional polarity reversal or phase adjustment.关键词
可控震源/炸药震源/初至波/匹配算子/滤波Key words
vibroseis/dynamite source/first arrival/matching operator/filtering分类
天文与地球科学引用本文复制引用
梁鸿贤..基于初至信息的可控震源和炸药震源地震资料匹配滤波技术[J].石油物探,2018,57(2):231-236,6.基金项目
国家科技重大专项(2016ZX05006002)资助.This research is financially supported by the National Science and Technology Major Project of China (Grant No.2016ZX05006002). （2016ZX05006002）
