石油地球物理勘探2025，Vol.60Issue(3)：700-709,10.DOI:10.13810/j.cnki.issn.1000-7210.20240430
基于声波―黏弹性波流固耦合方程的多参数全波形反演
Multi-parameter full waveform inversion based on fluid-solid coupling equations of acoustic-viscoelastic waves
摘要
Abstract
The seismic wave propagation environment of marine seismic exploration is a coupling medium consisting of fluid(upper seawater)and solid(the rock formation below the seabed).The fluid-solid coupling equation can simulate the propagation law of seismic waves in marine seismic exploration with high accuracy.However,most of current fluid-solid coupling equations are based on acoustic and elastic wave equations,with the frequency dissipa-tion effect caused by quality factors in solids ignored.In this paper,based on the acoustic wave equation and the vis-coelastic wave equation,the acoustic and viscoelastic wave coupling equation is constructed through introducing the relationship between pressure component and normal stress into the viscoelastic wave equation.Moreover,the multi-parameter full waveform inversion of the coupling equation is realized.The model experiment results show that the accuracy of the multi-parameter full waveform inversion based on the acoustic and viscoelastic wave coupling equa-tion is obviously better than that of the acoustic and elastic wave coupling equation for velocity and other parameters because it fully considers the frequency dissipation effect in seismic wave propagation.The proposed method has a good application prospect in the full waveform inversion of actual OBN data.关键词
全波形反演/黏弹性波/流─固耦合方程/多参数Key words
full waveform inversion/viscoelastic wave/fluid-solid coupling equation/multi-parameter分类
天文与地球科学引用本文复制引用
刘光照,毛士博,宋鹏,谭军,赵波,姜秀萍..基于声波―黏弹性波流固耦合方程的多参数全波形反演[J].石油地球物理勘探,2025,60(3):700-709,10.基金项目
本项研究受国家自然科学基金项目(No.42074138,No.42206195)、国家重点研发计划(No.2022YFC2803501)和崂山实验室科技创新项目(2021WHZZB0703)联合资助. （No.42074138,No.42206195）
