世界核地质科学2025，Vol.42Issue(3)：582-595,14.DOI:10.3969/j.issn.1672-0636.2025.03.009
单程波动方程照明分析在地震观测系统设计中的应用
Application of one-way wave equation illumination analysis in the design of seismic observation system
摘要
Abstract
High-quality field seismic data are fundamental to the refined processing of seismic signals and the accurate interpretation of geological information.A scientifically designed observation system is essential to ensure data quality and imaging effectiveness.In complex geological settings,traditional acquisition systems are prone to insufficient energy coverage and imaging shadow zones,which hinder the identification of reflection signals and the detailed delineation of target structures.To enhance seismic imaging performance under such conditions,this study conducts a systematic investigation into acquisition parameter optimization for observation systems in structurally complex areas,based on an illumination analysis approach using the one-way wave equation.Forward illumination analysis is first employed to optimize the layout of sources and receivers,thereby improving energy coverage over target horizons.Subsequently,reverse illumination analysis is used to refine shot point densification,receiver array length,and channel spacing,aiming to enhance energy acquisition and wavefield coverage.A two-dimensional geological model is constructed,and forward modeling is performed to quantitatively compare the illumination energy distribution before and after optimization,leading to the determination of acquisition parameters that meet imaging requirements.Results show that the optimized observation system effectively reduces imaging shadows in complex structural zones,improves profile continuity and reflection energy response,and exhibits strong adaptability and engineering feasibility.The proposed optimization workflow has been applied and validated in an actual survey area,demonstrating consistent improvements in imaging performance.This work confirmed the practical value of illumination-based analysis in the acquisition design for complex geological conditions and established a parameter configuration methodology suitable for fault-intensive zones and sand body development areas,which will provide a replicable design reference and technical path for future seismic exploration.关键词
单程波动方程/观测系统设计/照明分析/正演模拟Key words
one-way wave equation/observation system design/illumination analysis/forward modeling分类
天文与地球科学引用本文复制引用
李金鑫,赵威,宁媛丽,杨晓柳,朱圣伟,王若雯..单程波动方程照明分析在地震观测系统设计中的应用[J].世界核地质科学,2025,42(3):582-595,14.基金项目
中核铀资源地球物理勘查重点实验室(编号:WDZC-2024-)、中国核工业地质局内蒙古通辽市胡力海-吉林省双辽市秀水地区地震勘探项目(编号:202311-2)、内蒙古鄂尔多斯市新召-伊和乌素地区地震勘探项目(编号:202401-10)联合资助 Supported by the CNNC Key Laboratory of Nuclear Uranium Resource Geophysical Exploration(No.WDZC-2024-),the Seismic Exploration Project in the Hulihaixiushui area from Hulihai,Tongliao city,Inner Mongolia to Xiushui,Shuangliao city,Jilin province by China Nuclear Industry Geological Bureau(No.202311-2),and the Seismic Exploration Project in the Xinzhao-Yihewusu area,Ordos city,Inner Mongolia(No.202401-10) （编号:WDZC-2024-）
