石油物探2026，Vol.65Issue(2)：273-281,9.DOI:10.12431/issn.1000-1441.2025.0163
基于衰减补偿的角度域菲涅耳束偏移
Angle-domain Fresnel beam migration based on attenuation compensation
摘要
Abstract
To address the amplitude attenuation and phase distortion of seismic waves in viscoacoustic media,this paper proposes an angle-domain Fresnel beam migration method incorporating attenuation compensation.The method introduces complex traveltime in viscoacoustic media to accurately correct the amplitude and phase of the wavefield and dynamically adjusts the Fresnel beam width to enhance the constraint and focusing capability of the beam on reflected energy.This enables simultaneous compensation for the energy loss and waveform distortion during wave propagation.Numerical simulations and field data tests demonstrate that the method effectively compensates for the attenuation of reflected energy in medium and deep layers,improves amplitude fidelity and imaging clarity,and thereby significantly increases imaging resolution.The extracted angle-domain common-image gathers(ADCIGs)exhibit more balanced energy distribution and better focusing performance.Overall,the method shows strong adaptability and imaging stability in viscoacoustic media,offering a practical and effective approach for high-resolution migration in complex subsurface structures.关键词
衰减补偿/角度域/菲涅耳束偏移/黏声介质Key words
attenuation compensation/angle domain/Fresnel beam migration/viscoacoustic medium分类
能源科技引用本文复制引用
张懿豪,黄建平..基于衰减补偿的角度域菲涅耳束偏移[J].石油物探,2026,65(2):273-281,9.基金项目
国家自然科学基金项目(42374164)资助. This research is financially supported by the National Natural Science Foundation of China(Grant No.42374164). （42374164）
