科技创新与应用2024，Vol.14Issue(13)：5-8,4.DOI:10.19981/j.CN23-1581/G3.2024.13.002
周期性粗糙界面地震绕射波数值仿真与分析
摘要
Abstract
As an important means of studying seismic waves in exploration seismology,numerical simulation provides a power-ful scientific basis for field data acquisition and processing.As an important supplement to reflection seismic imaging,diffracted waves can improve the imaging resolution.Therefore,it is particularly important to effectively identify and confirm the diffracted wave components in the data.Taking the sinusoidal rough interface as the research object,the spectral element method(SEM)is used to analyze the propagation law of diffracted waves and determine the spatial distribution characteristics of diffracted waves.The results show that different order diffraction waves are produced after the interaction between seismic waves and sinusoidal in-terfaces,and their kinematic characteristics satisfy the grating equation,and the higher order diffraction waves have more serious angular dispersion.In addition,the simulation results play an important auxiliary role in students'in-depth understanding of the influence of diffracted waves on seismic data processing.关键词
绕射波/数值仿真/周期界面/谱元法/角频散Key words
diffraction wave/numerical simulation/periodic interface/spectral element method(SEM)/angular dispersion分类
地质学引用本文复制引用
高国超,夏鹏,吉健维..周期性粗糙界面地震绕射波数值仿真与分析[J].科技创新与应用,2024,14(13):5-8,4.基金项目
贵州大学引进人才科研项目(贵大人基合字(2021)36号) （贵大人基合字(2021）
贵州省基础研究(自然科学)项目(黔科合基础-ZK[2024]一般088) （自然科学）
贵州省级地质勘查资金项目(52000021MGQSE7S7K6PRP) （52000021MGQSE7S7K6PRP）
