Fluid-rock interaction experiments with andesite at 100℃ for potential carbon storage in geothermal reservoirs

作     者：Grace E.Belshaw Elisabeth Steer Yukun Ji Herwin Azis Benyamin Sapiie Bagus Muljadi Veerle Vandeginste 

作者机构：School of ChemistryUniversity of NottinghamNottinghamUK GeoEnergy Research CentreUniversity of NottinghamNottinghamUK British Geological SurveyKeyworthUK State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground EngineeringChina University of Mining and TechnologyXuzhouChina PT Supreme EnergyJakartaIndonesia Faculty of Earth Sciences and TechnologyInstitut Teknologi BandungBandungIndonesia Faculty of EngineeringUniversity of NottinghamNottinghamUK Department of Materials EngineeringKU LeuvenCampus BrugesBrugesBelgium 

出 版 物：《Deep Underground Science and Engineering》 (深地科学（英文）)

年 卷 期：2024年第3卷第3期

页      面：369-382页

学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 

基　　金：Engineering and Physical Sciences Research Council Grant/Award Number:EP/M000567/1 

主　　题：andesite carbon sequestration geothermal reservoirs plagioclase dissolution 

摘      要：Geothermal energy extraction often results in the release of naturally occurring carbon dioxide(CO_(2))as a *** on carbon storage using volcanic rock types other than basalt under both acidic and elevated temperature conditions has been limited so *** study uses batch reactor experiments at100℃ to investigate the dissolution of andesite rock samples obtained from an active geothermal reservoir in Sumatra(Indonesia).The samples are subjected to reactions with neutral-pH fluids and acidic fluids,mimicking the geochemical responses upon reinjection of geothermal fluids,either without or with dissolved acidic gases,*** elemental analysis reveals the release of Ca^(2+)ions into the fluids through the dissolution of *** overall dissolution rate of the rock samples is 2.4×10^(–11)to 4.2×10^(–11)mol/(m^(2)·s),based on the Si release during the initial 7 h of the *** dissolution rates are about two orders of magnitude lower than those reported for basaltic rocks under similar reaction *** study offers valuable insights into the potential utilization of andesite reservoirs for effective CO_(2)storage via mineralization.