中国石化煤层气资源分布特征与勘探开发前景  

Distribution characteristics and exploration and development prospects of coalbed methane resources in Sinopec

作　　者：周德华[1] 陈刚 赵石虎[2,3,4,5] 申宝剑 刘曾勤 叶金诚[2,3,4,5] 陈新军 张嘉琪 ZHOU Dehua;CHEN Gang;ZHAO Shihu;SHEN Baojian;LIU Zengqin;YE Jincheng;CHEN Xinjun;ZHANG Jiaqi(China Petrochemical Corporation,Beijing 100728,China;State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development,Beijing 102206,China;Key Laboratory of Shale Oil/Gas Exploration and Production Technology,SINOPEC,Beijing 102206,China;Key Laboratory of Deep Coalbed Methane Exploration and Production,SINOPEC,Beijing 102206,China;Petroleum Exploration and Production Research Institute,SINOPEC,Beijing 102206,China)

机构地区：[1]中国石油化工股份有限公司,北京100728 [2]页岩油气富集机理与高效开发全国重点实验室,北京102206 [3]中国石油化工股份有限公司页岩油气勘探开发重点实验室,北京102206 [4]中国石油化工股份有限公司深层煤层气勘探开发重点实验室,北京102206 [5]中国石油化工股份有限公司石油勘探开发研究院,北京102206

出　　处：《煤炭科学技术》2025年第3期19-30,共12页Coal Science and Technology

基　　金：中国石化科技部资助项目(P23208,P23230);中国石化石油勘探开发研究院优青资助项目(YK202406)。

摘　　要：自2019年鄂尔多斯盆地实现深层煤层气勘探突破以来,我国煤层气产业加速向深层领域拓展。针对中国石化探区煤层气资源类型复杂多样、储层禀赋空间异质性强等特征,基于“典型区块解剖—参数体系构建—区域外推应用”3级递进评价流程,系统开展探区内煤层气资源评价与分布特征研究,旨在支撑产业战略布局优化,主要取得以下认识:①中国石化探区内埋深4000 m以浅的煤层气地质资源量达到10.31×10^(12)m^(3),可采资源量为3.07×10^(12)m^(3),主要分布于鄂尔多斯、川南黔北、准噶尔、渤海湾及滇东黔西等盆地(群);②74.6%的资源量(7.69×10^(12)m^(3))分布于山地、沙漠和黄土塬等复杂地貌单元,导致勘探开发面临显著地表工程挑战;③中高阶煤层气资源丰富,地质资源量8.95×10^(12)m^(3),占比达86.9%,集中分布于鄂尔多斯、川南黔北、渤海湾和滇东黔西等含气盆地(群);④深层煤层气(埋深>1500 m)勘探潜力大,地质资源量7.59×10^(12)m^(3),占比达到73.6%,其中中高煤阶深层煤层气地质资源量达6.95×10^(12)m^(3),主要分布于鄂尔多斯和川南黔北盆地(群);⑤建议沿“基础理论深化—核心技术攻关—开发策略优化—产业基地建设”路径推进,重点构建深层煤层气差异化开发技术体系,驱动产业高质量发展。以上成果认识不仅为中国石化煤层气勘探开发战略布局提供了定量决策依据,更为行业资源勘探开发提供了可推广的技术范式。Exploration breakthroughs of deep coalbed methane(CBM)in the Ordos Basin have driven rapid industry development since 2019.Based on the characteristics of complex coalbed methane(CBM)resource types and strong spatial heterogeneity of reservoir attributes in Sinopec's exploration areas,this study systematically conducts CBM resource evaluation and distribution characteristics research through a three-tiered progressive evaluation process encompassing“typical block analysis-parameter system construction-regional extrapolation and application”,aiming to accelerate Sinopec’s CBM industry growth and optimize exploration strategies.Key findings include:①Sinopec’s exploration areas contain 10.31×10^(12)m^(3)of geological CBM resources(burial depth<4000 m),with 3.07×10^(12)m^(3)recoverable,primary distributed in the Ordos,southern Sichuan-northern Guizhou,Junggar,Bohai Bay,and eastern Yunnan-western Guizhou basins;②7.69×10^(12)m^(3)(74.6%of total resources)are located in mountainous,desert,and loess plateaus terrains,significantly increasing exploration and development complexity;③Mid to high rank coals host 8.95×10^(12)m^(3)(86.9%of total resources),predominantly in the Ordos,southern Sichuan-northern Guizhou,Bohai Bay,and eastern Yunnan-western Guizhou basins;④Deep CBM(burial depth>1500 m)shows high exploration potential,with a geological resource of 7.59×10^(12)m^(3)(73.6%of total resources),inluding 6.95×10^(12)m^(3)from mid to high rank coals concentrated in the Ordos and the southern Sichuan-northern Guizhou basins;⑤Sustained fundamental research,prior-itized core technology development,differentiated exploitation strategies,and deep CBM industrial base construction are critical for in-dustry advancement.The above findings provide a scientific foundation for Sinopec’s CBM strategic planning while establishing a replic-able framework for CBM exploration in other regions.

关 键 词：煤层气 地质资源量 可采资源量 分布特征 体积法 可采系数法 

分 类 号：P618[天文地球—矿床学]