深部煤层气开发的机遇与挑战  

Opportunities and challenges in deep coalbed methane development

作　　者：方志明[1,2] 王润东 杨晨龙 FANG Zhiming;WANG Rundong;YANG Chenlong(l.State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉430071 [2]中国科学院大学,北京100049

出　　处：《中国矿业大学学报》2025年第1期34-51,共18页Journal of China University of Mining & Technology

基　　金：国家自然科学基金联合基金重点项目(U23A20671);内蒙古自治区中央引导地方科技发展资金项目(2022ZY0018)。

摘　　要：煤层气等非常规天然气资源的规模化开发与利用是我国能源结构向清洁能源高比重发展的重要过渡手段,是实现我国“3060”双碳战略目标的重要保障.我国深部煤层气资源非常丰富,据初步评估,埋深超过1000 m的煤层气资源占总资源量的84.15%.自2019年大宁—吉县深部煤层气DJ3-7向2试验井开发成功以来,深部煤层气开发获得广泛关注.系统梳理了国内外深部煤层气开发进展,从国家政策、资源潜力、现有技术水平等角度讨论了我国深部煤层气开发面临的机遇与挑战.分析认为,我国煤层气开发多年积累的技术经验和实践成果为深部煤层气开发奠定了坚实的基础,深部煤层气开发契合国家与地方能源政策且受企业大力支持,丰富的资源量彰显巨大的开发潜力,呈现经济和战略双重价值,快速发展的示范项目展现出我国深部煤层气开发的广阔前景,这些都为我国深部煤层气开发提供了机遇.然而,区别于现有煤层气开发技术,高温、高压、高应力条件下,深部煤层气开发理论、技术与工程实践的有机结合不足、市场竞争压力大以及开发过程中存在的环保问题,是深部煤层气开发面临的主要挑战.The large-scale development and utilization of unconventional natural gas resources such as coalbed methane(CBM)is an important transitional measure for China's energy structure to shift towards a high proportion of clean energy,and is an important guarantee for achieving China's"3060"dual carbon strategic goal.According to preliminary assessment,with 84.15%of CBM resources buried below 1000 meters,China holds substantial deep CBM reserves.Since the successful 2019 pilot development of the DJ3-7X2 well in the Daning-Jixian field,deep CBM extraction has gained significant attention.This paper reviews recent advances in deep CBM development,both in China and internationally,and examines the associated opportunities and challenges from the standpoints of policy,resource potential,and current technology.Our analysis indicates that China's accumulated technical expertise and practical achievements over the years in CBM provides a solid foundation for deep CBM extraction.The development of deep CBM is in line with national and local energy policies and is strongly supported by enterprises.The abundant resources demonstrate enormous development potential,presenting dual economic and strategic value.The rapidly developing demonstration projects demonstrate the broad prospects of deep CBM development in China,providing opportunities for its development.However,unlike existing CBM development technologies,the lack of organic integration between deep CBM development theory,technology,and engineering practice under high temperature,high pressure,and high stress conditions,high market competition pressure,and environmental issues in the development process are the main challenges faced by deep CBM development.

关 键 词：深部煤层气 成藏机理 资源储量 高温、高压、高应力 压裂 

分 类 号：P618.13[天文地球—矿床学]