海洋地质前沿2025，Vol.41Issue(3)：35-47,13.DOI:10.16028/j.1009-2722.2024.245
南黄海盆地烟台坳陷新生界二氧化碳封存地质条件与封存前景
Geological conditions and prospects for CO2 storage in the Cenozoic strata of the Yantai Depression,South Yellow Sea Basin
摘要
Abstract
Offshore saline aquifer CO2 storage is an effective approach for reducing carbon emissions and offers technical support for the sustainable development of coastal regions within the framework of carbon neutrality.The Yantai Depression in the South Yellow Sea Basin aligns well with the distribution of coastal carbon sources,making it a promising area for potential CO2 storage.This study analyzes the geological conditions for CO2 stor-age in the Yantai Depression of the basin.A stratigraphic volume model was established,and constraint calcula-tions were applied to predict the storage potential of the Cenozoic saline aquifers,followed by an evaluation of CO2 storage prospects in the region.The results show that the Yantai Depression,which comprises a series of NE-trending graben and half-graben depressions,contains four carbon storage-caprock assemblages in the Cenozoic.The region exhibits strong crustal stability,a low geothermal gradient,and low heat flow,characteristic of a"cold basin."These factors contribute to favorable geological conditions for CO2 storage.The storage potential of CO2 in the 800～3 200 m deep saline aquifers of the Yantai Depression averages 99 Gt,indicating a substan tial stor-age capacity.Structurally,the Cenozoic strata of the Yantai Depression is defined by five types of traps:thrust an-ticlines,gravity-sliding anticlines,compressive anticlines,faulted anticlines,and fault blocks.Four favorable stor-age zones have been identified,highlighting the strong geological potential for CO2 sequestration.These findings provide a scientific basis for future site selection studies for offshore CO2 geological storage.关键词
海域咸水层封存/二氧化碳封存地质条件/潜力评价/烟台坳陷/南黄海盆地Key words
offshore saline aquifer storage/CO2 storage geological conditions/potential assessment/Yantai De-pression/South Yellow Sea Basin分类
海洋科学引用本文复制引用
袁勇,陈建文,骆迪,李清,梁杰,蓝天宇,王建强,曹珂,赵化淋..南黄海盆地烟台坳陷新生界二氧化碳封存地质条件与封存前景[J].海洋地质前沿,2025,41(3):35-47,13.基金项目
国家自然科学基金(42206234,42476228) （42206234,42476228）
山东省重点研发计划(科技示范工程)(2024SFGC0302) （科技示范工程）
中国地质调查局项目(DD202503023,DD20230401) （DD202503023,DD20230401）
自然资源部科技战略研究项目(2023-ZL-18) （2023-ZL-18）
