中国石油大学学报（自然科学版）2025，Vol.49Issue(6)：65-74,10.DOI:10.3969/j.issn.1673-5005.2025.06.006
角度域保幅的最小二乘高斯束偏移成像
Least-squares Gaussian beam migration with angle-domain amplitude preservation
摘要
Abstract
This paper proposes a least-squares Gaussian beam migration method based on the extraction of angle-domain com-mon image gathers to overcome the limitations of traditional seismic imaging techniques in exploring deep and complex hydro-carbon reservoirs.The method leverages the angle information carried by the Gaussian beam propagator to separate imaging contributions at different reflection angles.By integrating iterative least-squares optimization,it achieves high-resolution and amplitude-preserving imaging results.In addition,the concept of principal-axis continuation is introduced to enhance the am-plitude of shallow reflection events and compensate for missing signals in the middle and deep layers,further improving over-all amplitude fidelity in the stacked section.Model experiments verify the effectiveness of the proposed approach,demonstra-ting its superior ability to delineate complex geological structures,suppress imaging noise,and enhance amplitude preserva-tion compared with conventional Gaussian beam migration.关键词
地震勘探/高斯束偏移/最小二乘法/角度域成像/保幅成像技术Key words
seismic exploration/gaussian beam migration/least-squares method/angle-domain imaging/amplitude-preser-ving imaging technique分类
天文与地球科学引用本文复制引用
黄建平,张懿豪,杨继东,庄苏斌,谢清林..角度域保幅的最小二乘高斯束偏移成像[J].中国石油大学学报（自然科学版）,2025,49(6):65-74,10.基金项目
山东省海洋科技基金青岛海洋科学与技术国家试点实验室项目(2021QNLM020001) （2021QNLM020001）
山东能源集团深层高温地热重大科技项目(SNKJ2022A06-R23) （SNKJ2022A06-R23）
创新研究群体项目(41821002) （41821002）
国家自然科学基金优秀青年项目(海外)(ZX20230152) （海外）
中国石油重大科技专项(ZD2019-183-003) （ZD2019-183-003）
