三河尖关闭煤矿煤层CO2封存潜力研究
P618.11; 关闭煤矿煤层CO2地质封存是CO2封存的重要方式之一,也是短期内实现碳减排指标的有效手段之一.以江苏省徐州市三河尖关闭煤矿为例,分析了已采7号煤和9号煤的煤岩煤质特征,统计了剩余煤炭资源储量,运用模糊综合评价法,选取了稳定系数、上覆岩层性质、地质构造复杂程度、地下水指标、封存煤层压温比、封存煤层深厚比、封存煤层渗透率、采空塌陷程度和其他因素等9个主要影响因素指标对7号煤和9号煤封存CO2稳定性进行评价,建立关闭煤矿煤层CO2封存评价方法并评估CO2封存潜力.结果表明,三河尖关闭煤矿7号煤和9号煤剩余储量较大,CO2封存稳定性综合评价结果分别为86.209和87.698,评价等...
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| Published in | 煤炭科学技术 Vol. 52; no. 3; pp. 258 - 268 |
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| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
煤层气资源与成藏过程教育部重点实验室,江苏徐州 221008
2024
江苏省地质矿产局第五地质大队,江苏徐州 221004 中国矿业大学资源与地球科学学院,江苏徐州 221116%中国矿业大学资源与地球科学学院,江苏徐州 221116%江苏省地质矿产局第五地质大队,江苏徐州 221004%中国矿业大学资源与地球科学学院,江苏徐州 221116 |
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| Online Access | Get full text |
| ISSN | 0253-2336 |
| DOI | 10.12438/cst.2023-0877 |
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| Abstract | P618.11; 关闭煤矿煤层CO2地质封存是CO2封存的重要方式之一,也是短期内实现碳减排指标的有效手段之一.以江苏省徐州市三河尖关闭煤矿为例,分析了已采7号煤和9号煤的煤岩煤质特征,统计了剩余煤炭资源储量,运用模糊综合评价法,选取了稳定系数、上覆岩层性质、地质构造复杂程度、地下水指标、封存煤层压温比、封存煤层深厚比、封存煤层渗透率、采空塌陷程度和其他因素等9个主要影响因素指标对7号煤和9号煤封存CO2稳定性进行评价,建立关闭煤矿煤层CO2封存评价方法并评估CO2封存潜力.结果表明,三河尖关闭煤矿7号煤和9号煤剩余储量较大,CO2封存稳定性综合评价结果分别为86.209和87.698,评价等级均为较稳定,封存潜力较高.根据建立的关闭煤矿煤层CO2封存评价方法,计算获得三河尖关闭煤矿7号和9号煤层CO2理论封存量分别为207.6 Mt和80.9Mt,并据此划分封存有利区为有利区、较有利区和不利区3个等级.研究可为关闭煤矿煤层CO2封存研究提供基础依据. |
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| AbstractList | P618.11; 关闭煤矿煤层CO2地质封存是CO2封存的重要方式之一,也是短期内实现碳减排指标的有效手段之一.以江苏省徐州市三河尖关闭煤矿为例,分析了已采7号煤和9号煤的煤岩煤质特征,统计了剩余煤炭资源储量,运用模糊综合评价法,选取了稳定系数、上覆岩层性质、地质构造复杂程度、地下水指标、封存煤层压温比、封存煤层深厚比、封存煤层渗透率、采空塌陷程度和其他因素等9个主要影响因素指标对7号煤和9号煤封存CO2稳定性进行评价,建立关闭煤矿煤层CO2封存评价方法并评估CO2封存潜力.结果表明,三河尖关闭煤矿7号煤和9号煤剩余储量较大,CO2封存稳定性综合评价结果分别为86.209和87.698,评价等级均为较稳定,封存潜力较高.根据建立的关闭煤矿煤层CO2封存评价方法,计算获得三河尖关闭煤矿7号和9号煤层CO2理论封存量分别为207.6 Mt和80.9Mt,并据此划分封存有利区为有利区、较有利区和不利区3个等级.研究可为关闭煤矿煤层CO2封存研究提供基础依据. |
| Abstract_FL | Geological sequestration of CO2 in closed coal mines'coal seams is a significant method for CO2 sequestration and an effective strategy to achieve short-term carbon emission reduction goals.This study focuses on the Sanhejian coal mine in Xuzhou City,Jiangsu Province.The study scrutinizes the features of the coal rock and the quality of the mined No.7 and No.9 coal seams.Additionally,it cal-culates the remaining coal resource reserves.The study also applies the fuzzy comprehensive evaluation method to identify nine main in-fluencing factors for the CO2 storage stability of the No.7 and No.9 coals.These factors include the stability factor,the nature of the overlying rock strata,the complexity of the geotectonic structure,the index of groundwater,the ratio of the sealed coal bed pressure to temperature,the ratio of the sealed coal bed depth to depth,the permeability of sealed coal beds,the degree of the hollowing-out collapse,and other relevant factors.We assessed the stability of CO2 storage in No.7 and No.9 coals based on key influencing elements.We de-veloped a CO2 storage evaluation method to assess the CO2 storage capacity of coal seams in sealed coal mines.The findings indicate that the remaining reserves of No.7 coal and No.9 coal in the Sanhejian closed coal mine are substantial.The comprehensive evaluation res-ults for CO2 storage stability are 86.209 and 87.698,respectively,indicating a higher level of stability and greater potential for storage.The CO2 storage capacity of the No.7 and No.9 coal seams in the closed coal mines of Sanhejian was determined using the established evalu-ation method.We calculated the theoretical storage capacity to be 207.6 Mt and 80.9 Mt,respectively.This led to the division of the stor-age area into three levels:favorable,more favorable,and unfavorable.The work can establish a fundamental foundation for investigating the storage of CO2 in coal seams within decommissioned coal mines. |
| Author | 汤志刚 陈尚斌 彭一轩 王阳 易高峰 周琦忠 钱静 |
| AuthorAffiliation | 江苏省地质矿产局第五地质大队,江苏徐州 221004;中国矿业大学资源与地球科学学院,江苏徐州 221116%中国矿业大学资源与地球科学学院,江苏徐州 221116%江苏省地质矿产局第五地质大队,江苏徐州 221004%中国矿业大学资源与地球科学学院,江苏徐州 221116;煤层气资源与成藏过程教育部重点实验室,江苏徐州 221008 |
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| Author_FL | QIAN Jing YI Gaofeng CHEN Shangbin WANG Yang TANG Zhigang ZHOU Qizhong PENG Yixuan |
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| DocumentTitle_FL | CO2 storage potential of coal seam in Sanhejian closed coal mine |
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| Keywords | storage potential Sanhejian Coal Mine 封存潜力 关闭煤矿 稳定性评价 closed coal mines CO2 storage in coal seams carbon sequestration stability evaluation 碳封存 三河尖煤矿 煤层CO2封存 |
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| Title | 三河尖关闭煤矿煤层CO2封存潜力研究 |
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