咸水层地下储氢与储碳多尺度数值模拟  

Numerical Simulation of Carbon Dioxide and Hydrogen Storage in Saline Aquifers

作　　者：王秀坤 武文胜 王玄 宋刚祥 WANG Xiukun;WU Wensheng;WANG Xuan;SONG Gangxiang(State Key Laboratory of Petroleum Resources and Engineering,China University of Petroleum(Beijing),Beijing 102249,China;PetroChina Liaohe Oilfield Safety and Environment Protection Technology Supervision Center,Panjin 124010,China;Shanghai Branch of CNOOC Ltd.,Shanghai 200335,China)

机构地区：[1]油气资源与工程全国重点实验室,中国石油大学(北京),北京102249 [2]中国石油辽河油田安全环保技术监督中心,盘锦124010 [3]中海石油中国有限公司上海公司,上海200335

出　　处：《华南师范大学学报(自然科学版)》2025年第1期13-21,共9页Journal of South China Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(52204060)。

摘　　要：地下储氢和CO_(2)地质封存已成为化石能源行业转型的热点领域。在微观上,通过建立孔隙网络两相模拟方法,表征了非润湿相的滞后效应,研究了H_(2)和CO_(2)在咸水层中的两相渗流特征和异同。据此开展了H_(2)和CO_(2)注入咸水层以及H_(2)回采矿场尺度数值模拟,评估了气体储存量、储存安全性和回采率。结果表明:由于H_(2)难以被压缩,CO_(2)地下储集能力优于H_(2);由于润湿性的影响,CO_(2)储存时发生泄漏的可能性大于H_(2)。此外,优化设计了CO_(2)作为垫气时的注入量,形成了H_(2)回采率Pareto图版。该研究成果为咸水层地下储氢与碳封存技术的理论研究和工程应用提供了科学指导。Underground hydrogen storage(UHS)and carbon dioxide capture and storage(CCS)have been the frontiers of energy transition of petroleum and coal industries.A pore-scale network simulation method incorporating non-wetting phase hysteresis effects has been developed to study the flow characteristics of hydrogen and carbon dioxide in saline aquifers.Field-scale numerical simulations of hydrogen and carbon dioxide injection,as well as hydrogen recovery,were conducted to evaluate gas storage capacity,storage safety,and recovery efficiency.The results indicate that carbon dioxide has a higher likelihood of leakage compared to hydrogen during storage.When the storage capacity of the reservoir is limited,carbon dioxide storage is more advantageous than hydrogen.Pre-injecting carbon dioxide as buffer gas can effectively enhance hydrogen recovery efficiency,where the Pareto digram for optimal hydrogen storage efficiency is provided.This research outcome offers scientific guidance for both theoretical studies and engineering practices of hydrogen storage and carbon sequestration in saline formations.

关 键 词：地下储氢 二氧化碳封存 孔隙网络模拟 毛管力捕集 盖层泄漏 

分 类 号：X522[环境科学与工程—环境工程]