中国二氧化碳地质储存目标靶区筛选技术方法

Method of Target Area Selection of CO_2 Geological Storage in China

在沉积盆地三级构造单元CO2地质储存潜力与适宜性评价得出的"适宜CO2地质储存"区域的基础上,借鉴国外已有的选址流程和方法,结合我国的地质条件和技术方法水平,提出了深部咸水层CO2地质储存目标靶区筛选评价指标体系,包括安全性、储存规模、场地地面环境条件和经济适宜性四大评价指标层以及44个具体评价指标,并将层次分析法和多因子逐层叠加法等评价方法应用于目标靶区筛选。通过鄂尔多斯盆地和河套盆地3处典型目标靶区适宜性评价的实例,证明了该评价指标体系在目标靶区筛选过程中具有较好的可操作性和推广应用价值。

On the basic of third-grade tectonic units potential and suitability evaluation results of suitable for carbon dioxide geological storage,learning from siting processes and methods,combining with geological conditions and technical methods level of China,we bring forward that the target scale can be determined by the four major evaluation index as layers of safety,reservoir scale,the ground environment conditions and economic suitability and 44 detailed indexes.The authors still bring forward that evaluation methods,such as the analytic hierarchy process and multi-factors space superposition assessment methods,can be used in the process of selecting target.The authors evaluated the suitability of three typical targets in Ordos basin and Hetao basin,confirming this evaluation index system has better maneuverability and application value in selecting target.