重庆科技大学学报（自然科学版）2026，Vol.28Issue(2)：1-9,124,10.DOI:10.19406/j.issn.2097-4531.2026.02.001
时移衰减补偿技术在咸水层CO2封存地震监测中的应用研究
Research on the Application of Time-Lapse Attenuation Compensation Technology in Seismic Monitoring for CO2 Storage in Saline Aquifers
摘要
Abstract
This study employs a typical sandstone saline aquifer in the Eastern South China Sea as a case study to propose a time-lapse attenuation compensation method based on forward and inverse calculations of quality factor for monitoring CO2 storage in saline aquifers.Attenuation-compensated migration imaging is conducted on time-lapse seismic simulation data representing different CO2 injection stages(25 a of injection and 75 a of cessation)to assess the enhancement effect of time-lapse attenuation compensation on CO2 plume monitoring.The quality factor model,derived from attenuation tomography inversion utilizing the image-domain spectral ratio method,demonstrates a high degree of consistency with the compensation imaging results obtained from the forward attenuation rock physics mod-el.The attenuation-compensated migration imaging,grounded in the quality factor model,effectively corrects am-plitude attenuation and phase distortion in the underlying strata induced by CO2 injection,while enhancing imaging resolution by over 25％.This method was successfully applied to delineate the distribution of CO2 plumes during both the injection and post-injection periods,thereby validating the reliability of time-lapse attenuation technology for CO2 storage monitoring.关键词
衰减补偿/品质因子/时移地震监测/咸水层/CO2封存Key words
attenuation compensation/quality factor/time-lapse seismic monitoring/saline aquifers/CO2 storage分类
天文与地球科学引用本文复制引用
郭凯,沈奕,于航,李林涛,董艳娇..时移衰减补偿技术在咸水层CO2封存地震监测中的应用研究[J].重庆科技大学学报（自然科学版）,2026,28(2):1-9,124,10.基金项目
中国海油"十四五"重大科技专项"新型能源开发及CCUS关键技术"(KJGG202412CCUS0107),"CO2驱长期安全封存和监测关键技术及装备研究"(2024ZD1406604) （KJGG202412CCUS0107）
海洋油气高效开发国家重点实验室第六批开放基金项目"基于地震衰减模型的二氧化碳封存监测方法研究"(2023GX10) （2023GX10）
