摘要
在地震资料处理过程中,由于受不同时期野外施工因素差异的影响,经反褶积后的地震子波存在一定的相位差,影响地震资料的拼接效果,而模型子波处理技术是一种估算和减少相位差异的新技术。该技术通过模型试算和实际地震资料的处理,可以消除不同震源、接收仪器引起的地震相位差异,提高地震资料品质与精度。通过对五号桩高精度三维地震资料和桩海大连片地震资料处理的实际应用,消除了不同类型检波器和不同震源导致的地震资料拼接处的相位差异,证明该处理技术非常有效。
Phase correction is an important part in seismic data processing.In real seismic data processing,due to field acquisition conditions,different source and receiver devices,there is always a certain phase difference after deconvolution,which affects seismic data joining.This paper adopts model-based wavelet processing technique (MBWP),which is a new technique on estimation and reduction of phase difference.By means of studying and developing MBWP in processing system,the results prove that MBWP technique can eliminate phase difference caused by different source and receiver devices in model and real seismic data test,and thereby improving consistence of seismic data.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2010年第4期33-34,42,共3页
Petroleum Geology and Recovery Efficiency
基金
国家"863"项目"面向油藏的高精度地面三维地震与陆上时移地震技术"(2007AA060502)
关键词
地震资料连片处理
相位差异
模型子波处理技术
反褶积
相位校正
process of joining seismic data
phase difference
model wavelet process
deconvolution
phase correction
