规模化深部咸水含水层CO_2地质储存选址方法研究

Technical method for selection of CO_2 geological storage project sites in deep saline aquifers

本文依据中国沉积盆地CO2地质储存潜力评价结果,认为深部咸水含水层是实现规模化CO2地质储存的主体,进而对适宜CO2地质储存的深部咸水含水层属性进行了界定。提出了深部咸水含水层CO2地质储存选址原则,合理划分了选址工作阶段。建立了选址技术指标、安全性评价指标、经济适宜性和地面地质-社会环境选址指标4个指标层,60余个指标的选址指标体系,提出了基于层次分析(AHP)的多因子排序选址评价方法。本文的研究成果对中国深部咸水含水层CO2地质储存场地选址具有一定的指导意义。

According to the potential evaluation result of CO2 geological storage in China＇s sedimentary basins,the authors consider that the deep saline aquifer is the main body for realizing CO2 geological storage.The properties of the appropriate CO2 geological storage in deep saline aquifers are defined and analyzed.This paper presents principles of geological storage site selection in deep saline aquifers,and reasonably divide the stages of site selection.The evaluation index system can be established on the basis of four indicator layers and more than 60 special indicators from the conditions of location technology,security,economic suitability and land geology-social environment.Ranking multi-factor index method on the basis of AHP could be used for CO2 geological storage project site selection.The result of this study will provide a guidance for CO2 geological storage project site selection in deep saline aquifers of China.