| 梁胜建,陈长伟,吴明明,崔坤磊,丁子彬,邹明俊.河南省嵩箕隆起煤储层物性特征分析及二氧化碳封存潜力模拟[J].矿产勘查,2026,17(5):890-900 |
| 河南省嵩箕隆起煤储层物性特征分析及二氧化碳封存潜力模拟 |
| Study on the physical properties of coal reservoirs and potential simulation of carbon dioxide storage in the eastern section of Songji uplift of Henan Province |
| 投稿时间：2024-01-14 |
| DOI：10.20008/j.kckc.202605012 |
| 中文关键词: 二氧化碳地质封存 数值模拟 敏感性分析 渗透率 碳中和 |
| 英文关键词: carbon dioxide geological storage numerical simulation sensitivity analysis permeability carbon neutral |
| 基金项目:本文受2023年度河南省地质研究院地质科技攻关“揭榜挂帅”项目(2023-906-XM013-KT03)资助。 |
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| 中文摘要: |
| 本文以评价河南省嵩箕隆起煤储层二氧化碳封存潜力为目标，开展了储层物性特征分析，以分析结果指导模拟参数设定，开展了二氧化碳封存潜力模拟。结果表明，研究区煤岩物质组成中有机质含量平均为 85.8%，其中镜质组含量平均 72.0%；无机质中黏土类矿物含量 10.7%，黄铁矿平均含量 0.3%，方解石平均含量 3.8%，石英基本不可见，给予后期储层改造带来一定困难。孔隙度介于 6.0%~15.2%；渗透率介于 0.036~1.342 mD，普遍低于 0.5 mD；煤样的单轴抗压强度介于 18.59~121.49 MPa，普遍低于 100 MPa。数值模拟设定 5点井网以 400 m×400 m范围进行布井，模拟结果表明二氧化碳驱替甲烷产量要远大于单一抽采，抽采甲烷产量 2.4×106 m3，驱替甲烷产量为 7.2×106 m3，期间注入二氧化碳总量为 1.24×107 m3。敏感性分析表明二氧化碳注入压力对二氧化碳封存效果的正相关性明显。 |
| 英文摘要: |
| The evaluation of carbon dioxide storage potential of coal reservoirs in Songji Uplift of Henan Prov-ince was taken as the goal of this paper. The analysis of reservoir physical properties was carried out. The simulationparameters were set according to the analysis results, and the simulation of carbon dioxide storage potential was car-ried out. The result indicates that the average content of organic carbon is 85.8%, of which vitrinite is 72.0%. Theaverage contents of clay, pyrite and calcite are 10.7%, 0.3% and 3.8%, respectively. The porosity is between 6.0%-15.2%, the permeability is 0.036-1.342 mD, and the uniaxial compressive strength is 18.59-121.49 MPa. The car-bon dioxide storage potential and methane production of the II1 coal seam in the typical block uplift of the study areawere simulated. Five wells are used to arrange wells in the range of 400 m×400 m. The results show that carbon di-oxide displacement methane production is far greater than single extraction of methane. The cumulative carbon diox-ide injection volume is 1.24×107 m3, the methane production of extraction is only 2.4×106 m3, and the methane pro-duction of displacement is 7.2×106 m3. Sensitivity analysis shows that carbon dioxide injection pressure has a posi-tive correlation with carbon dioxide storage effect. |
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