摘要
煤炭等传统资源碳减排对实现“碳中和”目标具有决定性作用。在“双碳”和“煤炭去产能”政策背景下,研究煤层发育区CO_(2)地质封存体系具有鲜明的时代背景和实践基础。本文聚焦于煤层发育区CO_(2)地质封存体系,将煤层发育区详细划分为煤矿已采区、煤层未采区两区域进行单独阐述,从CO_(2)相态转化、CO_(2)储存能力、地质封盖条件等方面分析了采空区、煤层、咸水层3种储存空间地质封存原理和研究现状。充分借鉴煤和煤层气地质学理论,探讨了储层改造技术在CO_(2)强化封存领域的适用性,并厘定了不同封存模式亟需关注方向。在此基础上,重点阐述了CO_(2)强化封存的概念,探讨了煤层已采区和未采区CO_(2)逐级联合地质封存模式的应用前景。在单一封存和逐级联合封存2种思路下,初步提出煤层发育区CO_(2)地质封存适用性评价方法。
Carbon emission reduction of traditional resources such as coal plays a decisive role in achieving the goal of“carbon neutralization”.Under the policy background of“double carbon”and“coal de productivity”,CO_(2) geological storage system study in coal seam development area has a distinct era background and practical basis.Taking the CO_(2) geological storage system in the coal seam development area as the research object,development area can be divided into two areas,including mined area and untapped area.The geological storage principle and research status of three storage spaces of goaf,coal seam and salt water layer are clarified from the aspects of CO_(2) phase state transformation,CO_(2) storage capacity and geological capping conditions.Based on the theories of material mechanics,coalbed methane geology,the applicability of low-temperature freezing and thawing,acoustic(microwave)antireflection,hydraulic fracturing and other technologies in the field of CO_(2) enhanced storage are discussed,and the urgent attention direction of different storage modes is clarified.On this basis,the application prospect of CO_(2) step-by-step combined geological storage model in mined and untapped areas are studied.The applicability evaluation method of CO_(2) geological storage in coal seam development area is put forward under the consideration of single storage and step-by-step joint storage.
作者
张军建
常象春
吕大炜
王东东
代旭光
张晓阳
季雨坤
李梦航
刘海燕
郑雪
ZHANG Junjian;CHANG Xiangchun;LYU Dawei;WANG Dongdong;DAI Xuguang;ZHANG Xiaoyang;JI Yukun;LI Menghang;LIU Haiyan;ZHENG Xue(College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China;KU Leuven Campus Bruges,Department of Materials Engineering,B-8200 Bruges,Belgium;State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Xuzhou 221008,China)
出处
《煤炭科学技术》
EI
CAS
CSCD
北大核心
2023年第S01期206-214,共9页
Coal Science and Technology
基金
山东省青年科学基金资助项目(ZR2021QD072)
山东省大学生创新创业训练计划资助项目(202389,202390)
关键词
碳中和
煤储层
二氧化碳
地质封存
逐级封存
carbon neutralization
coal reservoirs
carbon dioxide
geological storage
stepped storage