咸水层CO2地质封存研究进展及前景展望OA北大核心CSTPCD

The Paris Agreement signed by numerous countries around the world at the Climate Change Confer-ence have provided new ideas for carbon emissions and temperature control in response to global warming.The Carbon Capture,Utilization,and Storage(CCUS)is one of the strategies for dealing with excessive CO2 emis-sions.As one of the CO2 storage methods,saline aquifer storage is characterized by wide reservoir distribution,good matching with carbon emission sources,large storage potential,and low environmental impact.Four main mechanisms of saline aquifer storage,including structural,capillary,dissolution,and mineralization storage were reviewed,and four main controlling factors of capping layer,physical parameters of reservoir,CO2 purity,and storage operation were focused.In addition,the cases of global saline aquifer CO2 storage projects were intro-duced,and the suitable CO2 storage methods were summarized after analyzing and comparing the geological and tectonic backgrounds of the global saline aquifer storage projects,the storage processes,the potentials and the en-vironmental monitoring methods,and so on.At last,suitable sites for CO2 storage and the appropriate monitoring mechanism,with a view to providing references for the geological storage of CO2 in saline aquifer in China were synopsized and prospected.