论文详情

地震资料的保真性分析与检验

石油物探

2013年 52卷第No. 3期

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Title

Seismic data processing fidelity analysis and verification

单位

1.中国矿业大学(北京),北京100083;2.中国石油化工股份有限公司胜利油田分公司物探研究院,山东东营257022

Organization

Dong Chenqiang,China University of Mining & Technology (Beijing),Beijing 100083,China

摘要

岩性油气藏勘探对地震资料提出了高分辨率、高信噪比、高保真度的处理要求。但是,在资料处理过程中过分强调提高分辨率,必然会导致地震资料的保真性受损。通过D1井三维探区和D2井北三维探区两块地震资料处理流程与处理效果的对比,揭示了叠后提频处理流程是导致地震资料保真性下降的原因所在;进一步分析了地震资料保真性受损后所带来的地质认识的差异;同时提出以纯波资料作为检验地震处理成果资料保真性的依据。

Abstract

Lithologic reservoir exploration requires seismic data with high resolution,SNR and fidelity.However,over emphasis on resolution improvement inevitably decreases data fidelity.Through the comparison of seismic processing steps and results of two three-dimensional seismic data in neighboring survey of D1j and D2jb,the difference reveals that post-stack frequency-enhancement processing causes the decline of data fidelity and analyzes the geological recognition difference caused by fidelity damaged seismic data.We also proposed to introduce pure wave seismic data as a basis for processed data fidelity testing.

关键词：

地震资料; 分辨率; 保真性; 提频处理; 地质认识;

Keywords:

seismic data; resolution; fidelity; frequency-enhancement processing; geological recognition;

基金项目

DOI

10.3969/j.issn.1000-1441.2013.03.005