世界核地质科学2024，Vol.41Issue(6)：1065-1075,11.DOI:10.3969/j.issn.1672-0636.2024.06.001
砂岩型铀矿地震反射波高精度成像关键问题分析
The key issue analysis for high-precision seismic reflection imaging of sandstone-type uranium deposit
摘要
Abstract
High-precision seismic reflection imaging data is essential for the fine exploration of thin-layer sand bodies and fault structures in sandstone-type uranium mineralization environments in sedimentary basin.Compared to deep oil and gas resources,sandstone-type uranium deposits are generally buried at shallower depths,have small elastic differences,and are significantly affected by the near-surface geological environment.This leads to key issues in seismic data processing,such as prominent static correction problems,severe linear noise,and dramatic stretch distortion in normal move-out corrections,all of which reduce the quality of reflection wave imaging.To address the above issues and improve the effectiveness of seismic reflection wave exploration for sandstone-type uranium deposits,based on modelled and field data,this study presents a comparative analysis of the critical issues affecting high-precision seismic imaging.It is found that adopting advanced techniques such as tomography static correction based on eikonal equation,linear noise suppression based on high-resolution Radon transform,and seismic reflection imaging based on seismic interferometry can significantly enhance the signal-to-noise ratio and resolution of shallow subsurface seismic reflection imaging.This,in turn,supplies a reliable data foundation for the fine seismic inversion with pre-stack or pro-stack data and is helpful to fulfill the fine exploration for the sandstone-type uranium mineralization environments.关键词
地震勘探/线性噪声/静校正/动校正/反射波成像Key words
seismic exploration/linear noise/statics/normal move-out/reflection imaging分类
天文与地球科学引用本文复制引用
乔宝平,潘自强,程纪星,李子伟,曹成寅,黄昱丞..砂岩型铀矿地震反射波高精度成像关键问题分析[J].世界核地质科学,2024,41(6):1065-1075,11.基金项目
核技术研发科研项目(编号:地HTLM2101)资助 Supported by Nuclear Technology R & D Program(No.地HTLM2101) （编号:地HTLM2101）
