测井技术2026，Vol.50Issue(1)：1-15,15.DOI:10.16489/j.issn.1004-1338.2026.01.001
煤岩气测井评价技术现状与挑战
Current Status and Challenges of Log Evaluation Technology for Coal-Rock Gas
摘要
Abstract
To provide technical support for the exploration and development of coal-rock gas resources,and facilitate the achievement of the"carbon peaking and carbon neutrality"goals,this study systematically compares the reservoir characteristics of coal-rock gas in typical exploration areas and their differences from coalbed methane,summarizes the current status of coal-rock gas logging evaluation technology,outlines the challenges faced in coal-rock gas logging evaluation,and points out its future development directions.The research indicates that:① Coal-rock gas reservoirs are characterized by high temperature and pressure,complex pore structures,strong heterogeneity,and coexistence of free gas and adsorbed gas.In the Benxi formation of the Ordos basin,free gas accounts for an average of 24.48%,while in the Xishanyao formation of the Junggar basin,free gas accounts for an average of 54.00%.② Logging technology has achieved results in identifying coal structure,calculating industrial components,and evaluating adsorbed gas content.Continuous evaluation of coal structure can be achieved through conventional logging curves and electrical imaging data,while industrial component and gas content calculation models can be established using methods such as multiple regression and machine learning.③ Coal-rock gas logging evaluation currently faces four core challenges:calibration and quantitative evaluation of free gas content,cleat identification and parameter characterization,permeability prediction under multiple pore structures,and evaluation of mechanical properties in coal-bearing strata.④ Future breakthroughs in technological bottlenecks require innovative rock physics experimental methods and instruments,the construction of multi-porosity space interpretation models,and the development of big data intelligent algorithms.The conclusion states that,as an important strategic alternative resource,coal-rock gas logging evaluation requires systematic technological innovation tailored to the uniqueness of the reservoir and the establishment of a comprehensive evaluation system to effectively address current evaluation challenges and support efficient resource exploration and development.关键词
煤岩气/测井评价/游离气/割理/储层参数/渗透率/煤系地层/人工智能Key words
coal-rock gas/log evaluation/free gas/cleat/reservoir parameter/permeability/coal-bearing strata/artificial intelligence分类
天文与地球科学引用本文复制引用
刘蝶,周金昱,宋连腾,刘忠华,田立立,吴明松,李晔,党文乐..煤岩气测井评价技术现状与挑战[J].测井技术,2026,50(1):1-15,15.基金项目
国家科技重大专项项目"深层煤岩气成藏机理与效益开发技术"(2025ZD1404200) （2025ZD1404200）
长庆油田重大科技专项项目"深地煤岩气成藏理论与效益开发技术研究"(2023DZZ01) （2023DZZ01）
中国石油集团科学技术研究院有限公司科学研究与技术项目"煤岩气富集机制与勘探开发关键技术研究"(2024yzz) （2024yzz）
