沁水盆地沁源区块二氧化碳地质封存数值模拟  

Numerical simulation of geological sequestration of carbon dioxide in Qinyuan Block of Qinshui Basin

作　　者：薛园园 邵长奎 张伟 牛雪[4] 乔建龙 王林 Xue Yuanyuan;Shao Changkui;Zhang Wei;Niu Xue;Qiao Jianlong;Wang Lin(School of Resources and Engineering Technology,Baoding University of Technology,Baoding 071000,Hebei,China;Hebei Branch of China Geo-Engineering Corporation,Baoding 071000,Hebei,China;China Energy Conservation and Environmental Protection Group,Beijing 100082,China;Center for Hydrogeology and Environmental Geology Survey,CGS,Baoding 071000,Hebei,China)

机构地区：[1]保定理工学院资源与工程技术学院,河北保定071000 [2]中国地质工程集团有限公司河北分公司,河北保定071000 [3]中国节能环保集团有限公司,北京100082 [4]中国地质调查局水文地质环境地质调查中心,河北保定071000

出　　处：《地质学刊》2022年第4期381-388,共8页Journal of Geology

基　　金：中国地质工程集团有限公司科技创新项目“太行山北段矿山地质环境治理综合绿色勘查方法研究”(CGC-HBF-KJCX-2021-58)。

摘　　要：沁水盆地中南部沁源区块具备良好的CO_(2)地质封存条件。以优势区块QY01为研究对象,基于研究区地质资料,使用油气藏数值模拟软件Eclipse对该区块15号下主煤层进行3种储层渗透率条件下的CO_(2)注入驱替甲烷及地质封存数值模拟研究。结果表明:研究区构造条件较为简单,区内15号煤储层具有煤层较厚、埋藏深、含气量及临界解吸压力高、渗透率偏低的特征。储层渗透率是区内影响煤层气开发的重要因素之一,不同储层渗透率条件下,注入CO_(2)驱替产气量均高于未注入CO_(2)驱替产气量。QY01区块15号煤储层条件好,煤层厚度大,产气能力较强,CO_(2)封存能力强,适合CO_(2)的安全封存。Qinyuan Block,which is in the central and southern Qinshui Basin,has good conditions for CO_(2) geological sequestration.Taking the dominant QY01 Block as the research object,based on the geological data of the study area,the reservoir numerical simulation software Eclipse was used to carry out the numerical simulation of CO_(2) injection,methane displacement and geological storage in the lower main coal seam of No.15 in QY01 Block under three reservoir permeability conditions.The results show that the structural conditions of the study area are relatively simple,and the No.15 coal seam in the area is characterized by thick coal seam,great burial depth,high gas content and critical desorption pressure,low permeability,etc.Reservoir permeability is one of the important factors affecting coalbed methane development in the area.Under different reservoir permeability conditions,the gas production after CO_(2) injection is higher than that without CO_(2) injection.No.15 coal seam in QY01 Block has good reservoir conditions,large thickness of coal seam,strong gas production capacity and great CO_(2) sequestration capacity,which is suitable for safe CO_(2) storage.

关 键 词：15号煤层 CO_(2)地质封存 碳中和 数值模拟 沁源区块 沁水盆地 

分 类 号：P628.3[天文地球—地质矿产勘探]