摘要
二氧化碳地质封存是二氧化碳捕集利用封存(CCUS)技术的关键环节,海域二氧化碳地质封存是将工业碳排放源或油气开发过程中捕集的二氧化碳,以超临界态注入到海底咸水层、废弃或开发中油气藏等地质体中,实现与大气长期隔离的过程。因远离人类居住地且有海水覆盖、具有“安全性高、环境风险小”特点,海域二氧化碳地质封存受到欧美等国家和地区的高度重视。本文在分析我国海域沉积盆地基本地质条件基础上,采用创新的模型体积法评价了我国海域沉积盆地咸水层二氧化碳地质封存潜力。研究表明,我国海域沉积盆地新生界厚度大,地壳稳定性较好,具有中低地温场特征,发育多套储碳-封盖组合,构造地层圈闭多,二氧化碳地质封存条件优越、咸水层封存潜力巨大。这将为我国海洋地质碳封存区带评价和目标区优选提供依据,对我国沿海省市碳达峰碳中和路径规划和离岸碳封存示范工程预研究具有重要意义。
Geological storage of carbon dioxide is the key link of carbon dioxide capture,utilization and storage(CCUS)technology.Marine carbon dioxide geological storage is the process of injecting supercritical carbon dioxide captured by industrial carbon emission sources or oil and gas development into geological bodies,such as seabed salt water layers,abandoned or developing oil and gas reservoirs,to achieve longterm isolation from the atmosphere.Because it is far from human habitation and covered by sea water,it has the characteristics of"high safety and low environmental risk",the geological storage of Marine carbon dioxide has been highly valued by European and American countries and regions.Based on the analysis of the basic geological conditions of sedimentary basins in China Sea area,an innovative model volume method is used to evaluate the geological storage potential of carbon dioxide in brackish layers of sedimentary basins in China Sea area.The analysis shows that the sedimentary basins in the sea area of China have large Cenozoic thickness,good crustal stability,characteristics of middle and low geothermal field,multiple sets of carbon storage and capping combinations,more structural and stratigraphic traps,superior geological conditions for carbon dioxide storage,and great potential for salt water reservoir storage.This will provide a basis for the evaluation of marine carbon dioxide geological storage zones and the optimization of target areas,and has great significance for the path planning of carbon peaking carbon neutrality and the pre-study of offshore carbon dioxide geological storage demonstration projects in China's coastal provinces and cities.
作者
陈建文
王嘹亮
王平康
袁勇
曹珂
付玉通
陆东宇
杨长清
李慧君
王建强
张银国
龚建明
孙晶
赵化淋
CHEN Jianwen;WANG Liaoliang;WANG Pingkang;YUAN Yong;CAO Ke;FU Yutong;LU Dongyu;YANG Changqing;LI Huijun;WANG Jianqiang;ZHANG Yinguo;GONG Jianming;SUN Jing;ZHAO Hualin(Qingdao Institute of Marine Geology,China Geological Survey,Qingdao 266237,China;Laboratory for Marine Mineral Resources,Qingdao Marine Science and Technology Center,Qingdao 266237,China;Qingdao Engineering Research Center of Offshore CO2 Geological Storage,Qingdao 266237,China;Qingdao Key Laboratory of Offshore CO2 Geological Storage,Qingdao 266237,China;Guangzhou Marine Geological Survey,China Geological Survey,Guangzhou 511458,China;Basic Investigation Department of China Geological Survey,Beijing 100037,China)
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2024年第3期98-114,共17页
Marine Geology & Quaternary Geology
基金
崂山实验室科技创新项目(LSKJ202203404,LSKJ202203401)
国家自然科学基金(42076220,42102188)
山东省自然科学基金(ZR2020MD037,ZR2020MD071,ZR2021QD095)
中国地质调查局海洋地质调查项目(DD20230401,DD20221723,DD20190818,DD20160152)。
关键词
二氧化碳地质封存
中国海域沉积盆地
模型体积法
咸水层
封存潜力
geological storage of carbon dioxide
sedimentary basins in China Sea
innovative model volume method
saline aquifer
storage potential
