Integrated CO2 sequestration and geothermal development:Saline aquifers in Beitang depression,Tianjin,North China Basin

作     者：Z.Pang Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics, Chinese Academy of Sciences,Beijing,China F.Yang,Y.Li & Z.Duan Key Laboratory of Engineering Geomechanics,Institute of Geology and Geophysics, Chinese Academy of Sciences,Beijing,China Graduate School,Chinese Academy of Sciences,Beijing,China 

会议名称：《中国科学院地质与地球物理研究所第十届(2010年度)学术年会》

会议日期：2011年

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：supported financially by China National High-Tech R&D(863) Program (2208AA062303) 

摘      要：This paper presents a conceptual model named CO-EATER(Enhanced Aquifer Thermal Energy Recovery)to integrate geological sequestration of CO with geothermal energy development and explains how this can be achieved using the Beitang depression of North China Basin as an *** results of chemical and isotopic characteristics of the saline aquifers are discussed,where field scale tests are underway to verify the *** water is dominated by Na-HCO type with TDS of 0.7-1.5 g/L. Isotopic composition shows that the formation water is of meteoric origin that has slightly reacted with the formation *** geothermometry indicates that the Guantao formation contains geothermal waters with temperatures around 80℃.Due to the low salinity,CO solubility can be rather high, which implies high storage capacity,favorable for CO *** results show that this site is suitable for the planned field scale test from a geochemical point of view.