"十四五"时期之前，我国传统勘探理论认为埋深超1500米的煤层储集能力差、含气量低、开发成本高， 将其视为煤层气开发"禁区"，全球范围内也鲜少关注这一深度的资源潜力。中石油煤层气公司2019年8 月在室内实验基础上，在首口煤岩试验井大吉3—7向2井探索酸压改造工艺。该井投产后，在埋深2000 米以下的8号煤岩段获得工业气流，突破以往"谈深色变"的传统认知，不仅揭示了煤岩气的开发价值， 更成为我国首口煤岩气发现井。 为破解煤岩气效益开发难题，中石油煤层气公司技术团队创新深部煤储层"大规模碎裂贯通式"改造理 念，构建"极限体积压裂"技术路径。2021年10月，吉深6—7平01井测试日产气10.1万立方米，成为我国 第一口深层煤岩气商业开发突破井，为后续大吉气田一系列水平井的成功奠定技术基础。 近年来，中石油煤层气公司科研团队深耕基础理论研究，揭示深部煤岩层段气体"吸附—游离"双相赋存 模式，在实践—认识—再实践—再认识中创新形成具有自主知识产权的五大核心技术，为国家级深层煤 岩气田——大吉气田的高效开发提供坚实支撑。2024年12月，该公司牵头完成的"鄂尔多斯盆地煤岩气 高效勘探全面突破"成果荣获中国石油勘探特等 ...

Core Insights - The article highlights the significant advancements in coalbed methane (CBM) production in China, particularly at the Daqi Gas Field, which has achieved a daily gas production of 1.012 million cubic meters, marking a 56% year-on-year increase [2] - The article emphasizes the strategic focus of China National Petroleum Corporation (CNPC) on coalbed methane development, showcasing innovative technologies that have propelled production and efficiency [2][6] Group 1: Production Achievements - The Daqi Gas Field has consistently surpassed production milestones, achieving daily outputs of over 700, 800, 900, and 1,000 million cubic meters throughout the year, demonstrating a robust upward trend in production capacity [2] - The field has reached an annual production capacity of 300,000 tons of oil equivalent, playing a crucial role in alleviating natural gas supply-demand imbalances and ensuring national energy security [2] Group 2: Technological Innovations - CNPC has developed key technologies such as "black gold target dense network fracturing" and "geological engineering integrated guidance," which have been instrumental in enhancing the scale of gas field development [2] - The company has successfully implemented a "large-scale fracturing penetration" approach, leading to the first commercial breakthrough in deep coalbed methane development with the Jishen 6-7 well, which achieved a daily gas production of 10.1 thousand cubic meters [6] Group 3: Research and Recognition - CNPC's research team has made significant contributions to the understanding of deep coalbed gas reservoirs, revealing a dual-phase gas storage model that supports efficient resource extraction [6] - The Daqi Gas Field has been recognized as a benchmark for coalbed methane development, with multiple high-yield wells achieving cumulative gas production exceeding 100 million cubic meters [8]

中石油煤层气公司12月12日发布消息，12月8日，我国最大的煤岩气田——大吉气田煤岩气日产气量1012万立方米，同比增长56%，彰显强劲上产势头。今 年以来，该气田煤岩气日产量连续突破700、800、900、1000万立方米关口，实现"每季换字头"的稳步跨越，已建成年产量300万吨油气当量规模，对缓解天 然气供需矛盾，保障国家能源安全具有重要意义。 作为引领煤层气产业发展的"排头兵"，中石油煤层气公司始终将煤岩气开发列为战略主攻方向，创新构建煤岩气富集理论体系，成功研发"黑金靶体织密缝 网压裂""地质工程一体化导向""3000米超长水平段"等关键核心技术，为气田规模开发注入硬核科技动力。 如今的大吉气田已成为煤岩气开发的示范标杆，高产井群效应凸显：单井最高日产气超10万立方米，较中浅层气井产量提升一个数量级；吉深11-6井台3口 井累产气超1亿立方米，成为该气田第15个累产破亿方的煤岩气高产井台；吉深10-8平01井作为"标杆井"，投产30个月累产突破7300万立方米，创下稳产时 间、稳产能力、单井EUR（最终可采储量）三项纪录。今年以来，吉深8-3平01井水平段完钻3036米，刷新国内煤岩气水平段最长纪录； ...