煤系气及深部煤层气高效勘探开发若干研究进展  

Research advances in efficient exploration and development of coal measure gases and deep coallbed methane

作　　者：桑树勋[1,2,3] 郑司建 刘世奇[1,2] 周效志[3] 韩思杰[1,2] 皇凡生 刘统[1,2] 代旭光[1,2] SANG Shuxun;ZHENG Sijian;LIU Shiqi;ZHOU Xiaozhi;HAN Sijie;HUANG Fansheng;LIU Tong;DAI Xuguang(Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization,China University of Mining and Technology,Xuzhou,Jiangsu 221oo8,China;Carbon Neutrality Institute,China University of Mining and Technology,Xuzhou,Jiangsu 2210o8,China;School of Mineral Resource and Geoscience,China University of Mining and Technology,Xuzhou,Jiangsu 221116,China)

机构地区：[1]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,江苏徐州221008 [2]中国矿业大学碳中和研究院,江苏徐州221008 [3]中国矿业大学资源与地球科学学院,江苏徐州221116

出　　处：《中国矿业大学学报》2025年第1期1-25,共25页Journal of China University of Mining & Technology

基　　金：国家自然科学基金重点项目(42030810);国家自然科学基金青年基金项目(42302194)。

摘　　要：煤系气及深部煤层气已成为我国天然气增储上产与煤层气产业发展重要领域,不论是成藏还是开发,二者都紧密衔接.系统梳理总结其高效勘探开发理论技术研究进展,在不断提升认识水平的同时,对于更好地指导重点盆地、重点层系煤系气及深部煤层气勘探开发决策部署与工程实践具有重要现实意义.本文从煤系气成藏模式与开发地质、煤系气开发技术模式与开发工程、深部煤层气高效勘探开发关键理论与技术等3个方面,分析综述了煤系气及深部煤层气勘探开发已取得的研究成果;进而针对地质-工程一体化、地质适配性技术、煤系气/煤层气合采、应力释放煤层气开发、深部与中浅部煤层气可采性关系、叠合型气藏与全层系含气系统煤系气开发潜力等6个关键问题,讨论阐述了作者的观点认识,并指出了其可能突破方向.研究结果表明:以煤储层厚度、地层结构、埋藏深度、煤岩特征、甲烷地质成因为线索,考虑实际工程意义,提出了厚-巨厚煤层煤层气藏、煤层群煤层气藏、煤系含煤段叠合型气藏、煤系非含煤段致密气藏、深部煤层气藏、深部全层系含气系统等基本煤系气成藏模式,不同成藏模式具有差异性开发地质特征;基于成藏模式及其储层地质特征,提出了单采、分采和合采3种基本煤系气开发技术模式,也相应发育了具体技术模式和不同的开发工程特征;在深部地层条件、深部煤层气赋存、煤层气可采性及储层可改造性、富集高产规律、“甜点”预测与井位部署方法等方面,深部煤层气地质理论取得了新认识,“多轮压裂、长距离有效支撑”(延川南模式)、“水平井极限体积压裂”(大宁—吉县模式)等大规模体积压裂技术创新带来了深部煤层气开发工程的突破,但压裂规模的地质、技术、经济上限值得关注.岩石力学地层方法是煤系气地质-工程一体�Coal measure gases and deep coalbed methane have become key areas for natural gas storage and production,as well as for the development of China's coalbed methane industry.Exploration and development are closely connected,and systematically summarizing the research progress of coal-measured methane in efficient exploration and development theories and technologies is of significant practical importance.Such summaries enhance understanding and offer valuable guidance for decision-making and engineering practices in the exploration and development of major basins and coal measures,including both coal-measured and deep coalbed methane.This article reviews the research achievements in coal measure gases and deep coalbed methane exploration and development across three dimensions:the formation model and geological development of coal measure gases,the technology model and engineering development of coal-measured methane,and the key theoretical and technical aspects of efficient exploration and development of deep coal seam gas.Furthermore,it addresses the author's viewpoints and potential breakthrough directions for six key issues:geological-engineering integration,geological adaptability technology,co-production of coal measure gases/coalbed methane,stress release coalbed methane development,the relationship between deep and intermediate-shallow coal seam gas recoverability,and the development potential of stacked gas reservoirs and gas-bearing systems across coal measures.The research has proposed basic coal measure gases reservoir formation models,such as thick-to-ultra-thick coalbed gas reservoirs,coal seam group gas reservoirs,coal measure gas reservoirs with overlapping coal-bearing sections,tight gas reservoirs in non-coal-bearing sections of coal measures,deep coalbed methane reservoirs,and deep gas-bearing systems in the entire coal measures.Different reservoir formation models exhibit distinct geological characteristics for development.Based on the accumulation model and its reservoir geological characterist

关 键 词：煤系气 深部煤层气 成藏模式 开发技术模式 理论进展 技术突破 攻关方向 

分 类 号：P618.11[天文地球—矿床学]