中国地质调查2025，Vol.12Issue(5)：1-14,14.DOI:10.19388/j.zgdzdc.2025.156
深部含水层压缩CO2储能储气库选址初步评价
Preliminary evaluation of site selection for compressed CO2 energy storage gas reservoir in deep aquifers:A case study of the aeolian sandstone reservoir in Hengyang Basin
摘要
Abstract
Under the Situation of carbon neutralisation strategy,Hunan Province is facing the pressing energy needs for new energy resource and large-scale energy storage.The eolian sandstone reservoirs in Hengyang Basin in the central Hunan has geological condition for gas reservoir,so it is of great theoretical and engineering signifi-cance to study the eolian sandstone reservoir as the site for compressed CO2 energy storage gas reservoirs.Four first-lever evaluation indicators were selected,including trap conditions,reservoir characteristics,geological safety,and economic benefits,with 17 secondary evaluation indicators in total.The analytic hierarchy process and a multi-factor comprehensive evaluation methods were adopted to establish a quantitative evaluation system for aquifer gas reservior sites.A qualitative assessment of the compressed CO2 storage potential in the deep aqui-fers of Hengyang Basin was carried out.It was found that the eolian sandstone in the basin can be considered as a preferred target formation for large-scale gas storage construction,because of its suitable porosity and permeabili-ty properties and the advantage of a stable overlying caprock.five trap spaces in Hengyang Basin were evaluated using this evaluation system.The results indicate that one site is suitable for energy storage and four sites are me-dium-unsuitable,with the challenges of low exploration degree for deep geological structure and strong diagenetic heterogeneity.It is preliminarily considered that the deep aquifers of Hengyang Basin have the potential to con-struct compressed CO2 energy storage gas reservoirs with engineering interventions like acidizing and hydraulic fracturing,which can provide stable backup support for regional energy supply.This study could provide scientific basis for the site selection and preliminary evaluation of energy storage gas reservoirs in the deep aquifers of Hengyang Basin in the central Hunan.And it is of great significance for promoting the optimization of the regional energy structure and ensuring energy security.关键词
压缩CO2储能/深部含水层/储气库选址/断陷红层盆地/湖南省Key words
compressed carbon dioxide energy storage/deep aquifer/gas reservoir site selection/faulted red bed basin/Hunan Province分类
地质学引用本文复制引用
黄乐清,姜文,李毅,喻浩,曹创华,陈旭,吴驰华..深部含水层压缩CO2储能储气库选址初步评价[J].中国地质调查,2025,12(5):1-14,14.基金项目
湖南省地质院科技计划项目"湖南省衡阳盆地深部含水层压缩气体储能初步评价与技术建议(编号:HNGSTP202322)""湖南省压缩空气储能(CAES)地质资源潜力探索与开发利用策略研究(编号:HNGSTP202529)"及湖南省自然科学基金"湖南衡阳—攸茶盆地白垩纪晚期沙漠沉积记录及古气候环境演化(编号:2021JJ30388)"联合资助. （编号:HNGSTP202322）
