煤层气开发-瓦斯治理-甲烷减排一体化技术探索与进展  

Exploration and research progress on the integrated technology of coalbed methane development,gas control,and methane emission reduction

作　　者：桑树勋[1,2,3,4] 谢洪高 颜智华 刘世奇[2,3] 周效志[1,4] 韩思杰[2,3] 郑司建 皇凡生 SANG Shuxun;XIE Honggao;YAN Zhihua;LIU Shiqi;ZHOU Xiaozhi;HAN Sijie;ZHENG Sijian;HUANG Fansheng(School of Mineral Resources and Geosciences,China University of Mining and Technology,Xuzhou 221116,China;Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization,China University of Mining and Technology,Xuzhou 221008,China;Carbon Neutrality Institute,China University of Mining and Technology,Xuzhou 221008,China;Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process,Ministry of Education,China University of Mining and Technology,Xuzhou 221008,China)

机构地区：[1]中国矿业大学资源与地球科学学院,徐州221116 [2]中国矿业大学江苏省煤基温室气体减排与资源化利用重点实验室,徐州221008 [3]中国矿业大学碳中和研究院,徐州221008 [4]中国矿业大学煤层气资源与成藏过程教育部重点实验室,江苏221008

出　　处：《工程科学学报》2025年第4期606-619,共14页Chinese Journal of Engineering

基　　金：国家自然科学基金重点资助项目(42030810);国家自然科学基金碳中和专项资助项目(42141012);国家自然科学基金国家重大科研仪器研制资助项目(41727801);江苏省创新支撑计划国际科技合作—“一带一路”创新合作资助项目(BZ2022015)。

摘　　要：煤炭甲烷是煤层气、煤矿瓦斯赋存于煤层中与煤共伴生的以甲烷为主的烃类气体统称,基于煤炭甲烷的能源气体、灾害气体和温室气体的“三重”属性,研发煤层气开发-瓦斯治理-甲烷减排一体化技术,推进煤炭甲烷的高效开发利用,对保障我国能源安全、生产安全与生态安全具有重要意义.针对煤层气与煤炭全生产周期协调开发的工程接续部署及空间配置关系优化难,构造煤发育赋煤区内煤层气难采、煤矿瓦斯难抽、风排瓦斯量大,低浓度、超低浓度煤炭甲烷利用率低等问题,试图探索提出一体化技术的思路和研究方向.本文系统梳理了煤矿区煤层气开发、瓦斯治理和甲烷减排技术的现状、进展及挑战,探索构建了集“煤炭采前-采中-采后地面井一体化部署与接续抽采技术”、“煤矿采动区地面井抽采-井下钻孔联合部署与协同抽采技术”、“构造煤煤层气开发与煤层降突消突一体化技术”和“煤炭甲烷高浓度-中低浓度-超低浓度梯级开发利用与大气排放管控技术”为一体的煤层气开发-瓦斯治理-甲烷减排一体化技术体系.未来,该一体化技术体系有望在我国煤与煤层气协调开发全周期接续部署、矿区全空间联合抽采瓦斯治理和煤矿生产全周期甲烷浓度梯级利用领域发挥更大作用,推动我国煤矿区煤层气高效勘探开发-瓦斯有效治理-煤炭甲烷全浓度减排与大气排放管控技术领域的工程应用和发展.Coal methane is a hydrocarbon gas with methane as its main component.This is a collective term for coalbed methane(CBM)and coal mine gas,which coexist with coal in coal seams.Given the“triple”attributes of coal methane as an energy source,a disaster gas,and a greenhouse gas,developing integrated technologies for its development,management,and emission reduction is vital to enhance efficient production and utilization and ensure energy,production,and ecological security.Aiming at problems such as the difficulty of coordinating the development of CBM and coal in the whole production cycle;optimizing the relationship between the successive deployment of projects and spatial configuration;mining CBM in the tectonic coal development coal-endowed area;and extracting coal mine gas,the large amount of gas in the air discharge,and the low utilization rate of low and ultralow concentration of coal methane,our team tries to explore and propose the idea of the integrated technology and the direction of the research.The temporal succession and effectiveness of coal methane development engineering during the entire production cycle,along with the configuration and optimal deployment of coal methane extraction engineering in the space between the surface and underground of coal mines,are key links for realizing the synergistic development and utilization of coal and CBM.Utilizing surface well“multipurpose”successive extraction technology ensures spatial and temporal coordination between CBM extraction and coal mining engineering.Considering the spatial and temporal constraints of coal mining projects,the depth and condition of coal seams,and other factors,surface and downhole drilling in the mining area are jointly deployed in advance to overcome the challenges of rapid and efficient CBM extraction and coal and gas outbursts that cannot be resolved by downhole pumping or surface wells using a single well deployment.To tackle the difficulties of developing CBM in structural coal and the propensity for gas outbursts,we pr

关 键 词：煤层气开发 瓦斯治理 煤炭甲烷减排 全周期接续部署 全空间联合抽采 全浓度梯级利用 

分 类 号：P618.11[天文地球—矿床学] TD421.5[天文地球—地质学]