含水层地下储氢圈闭盖层密封性评价——以Y含水圈闭为例
The sealing evaluation of underground hydrogen storage cap rock in aquifer:Taking Y water-bearing trap as an example
贾善坡 1张玥 2温曹轩 1李健 3张宗峰4
作者信息
- 1. 东北石油大学环渤海能源研究院,河北秦皇岛 066004
- 2. 吉林大学建设工程学院,吉林长春 130026
- 3. 中国石化胜利油田有限公司勘探开发研究院,山东东营 257000
- 4. 中国石化上海海洋油气分公司,上海 200120
- 折叠
摘要
结合国内外含水层储气库建设中影响盖层密封性的关键指标,构建含水层地下储氢圈闭盖层密封性评价体系,分析得出适合中国含水层盖层密封性评价方法——层次分析法,并运用层次分析法和多因子综合评价法相结合的方法定性分析了华东某油气区内的Y含水圈闭盖层静态密封能力.结果表明:①盖层静态密封性评价体系中直接盖层厚度、岩石脆性等传统评价因素占比较高,其次为地层水的酸碱性、矿物类型等特殊因素.②基于层次分析法和多因子综合评价法分析可知,Y含水圈闭的盖层在静态条件下具备一定的封气能力,能够在一定程度上封隔储集层中的氢气,避免氢气逸散.研究表明,该评价体系可为初步评价含水层地下储氢盖层密封性提供一定的指导与理论依据.
Abstract
Based on the key indicators affecting the seal performance of aquifer gas storage at home and a-broad,the seal evaluation system of aquifer underground hydrogen storage trap is constructed,and the evalua-tion method suitable for the seal performance of aquifer cover in China-analytic hierarchy process is analyzed.The static sealing capacity of Y water-bearing trap cap in an oil and gas area in East China is qualitatively ana-lyzed by combining analytic hierarchy process(AHP)and multi-factor comprehensive evaluation method.The results show that:① Traditional factors such as direct cap thickness and rock brittleness account for a relative-ly high proportion in the static seal evaluation system,followed by special factors such as formation water acid-ity and mineral type.② Based on the analysis of analytic hierarchy process(AHP)and multi-factor compre-hensive evaluation,it can be seen that the cap layer of Y water-bearing trap has a certain gas sealing ability under static conditions,which can seal off the hydrogen in the reservoir to a certain extent and avoid the es-cape of hydrogen.The research shows that the evaluation system can provide some guidance and theoretical basis for the preliminary evaluation of the sealing property of the underground hydrogen storage cover of aqui-fers.
关键词
含水层/氢气储存/盖层密封性/层次分析法/评价体系Key words
aquifer/hydrogen storage/cap rock sealing/analytic hierarchy process/evaluation system引用本文复制引用
基金项目
国家自然科学基金(42072166)
黑龙江省重点研发项目(JD2023SJ26)
出版年
2024
NETL
NSTL
万方数据