世界核地质科学2025，Vol.42Issue(3)：552-564,13.DOI:10.3969/j.issn.1672-0636.2025.03.007
基于多级分数阶微积分的地震数据解释性高分辨率处理方法
An interpretative high-resolution seismic data processing method based on multi-level fractional calculus
摘要
Abstract
In seismic exploration,high-resolution seismic reflection imaging data volumes are critical tools for achieving fine identification of thin sandstone bodies and fault structures in sedimentary basins.However,actual seismic imaging profiles often face the loss of low-and high-frequency signals,leading to low seismic imaging resolution and ineffective identification of oil,gas,uranium,coal,and other mineral resources.In signal processing,integral and differential algorithms of effective signals respectively reflect their low-and high-frequency components.Based on this principle,this paper proposes an interpretative high-resolution processing method using multi-level fractional calculus.By separately calculating different fractional-order components of effective signals,the missing low-and high-frequency components in seismic imaging profiles are obtained.Through the introduction of multivariate Gaussian theory,Bayesian theory,and statistical inversion to improve the solving process of weighting coefficients,a broadband high-resolution seismic imaging profile is established.Compared with traditional calculus-based high-resolution processing methods,this method effectively enhances the accuracy of weighting coefficient determination and avoids the impact of calculation errors on precision.Processing results from both onshore and offshore actual data demonstrate that the proposed method significantly improves the resolution and frequency bandwidth of seismic data,thereby enhancing high-resolution identification of sand bodies and related structures.关键词
多元高斯/多级分数阶微积分/高分辨率/地震数据Key words
multivariate Gaussian/multi-level fractional-order calculus/resolution/seismic data分类
天文与地球科学引用本文复制引用
高利君,李海英,杨威,龚伟,李卿卿..基于多级分数阶微积分的地震数据解释性高分辨率处理方法[J].世界核地质科学,2025,42(3):552-564,13.基金项目
中国石油化工集团公司重点项目:超深-特深层钻井地质工程一体化研究与应用(编号:P24136)及中国石油化工集团公司科研项目超深-特深层碳酸盐岩圈闭识别描述与评价技术研究(编号:P24009)联合资助 Supported by the study on identification,description and evaluation technology of ultra-deep and super-deep carbonate rock traps(No.P24009)and Integrated research and application of ultra-deep and super-deep drilling geological engineering(No.P24136) （编号:P24136）
