| 时间: 2021-07-10 | 次数: |
段宏跃, 段宏飞, 谢卫东.基于不同测井曲线的煤体结构识别[J].河南理工大学学报（自然科学版）,2021,40(4):59-65.
DUAN H Y, DUAN H F, XIE W D.Recognition of coal structure based on different logging curves ：A case of Tashan mine in Datong coalfield[J].Journal of Henan Polytechnic University(Natural Science) ,2021,40(4):59-65.
基于不同测井曲线的煤体结构识别
段宏跃1, 段宏飞2, 谢卫东3
1.山西煤炭地质物探测绘研究院，山西 晋中030600 2大同煤矿集团有限责任公司，山西 大同 037000;2.中国矿业大学 资源与地球科学学院，江苏 徐州 221116
摘要:为探究大同煤田塔山矿3~5号煤层煤体结构特征及对应的测井曲线识别方法，以塔山矿50余口钻孔数据和测井结果为研究依据，通过测井曲线解释、构造煤煤体结构指数和原生煤比例计算等数学方法结合，进行构造煤发育特征的定性和定量分析，并绘制塔山矿构造煤平面展布规律图。结果表明：塔山矿3 ~5号煤层在测井曲线上表现为高电阻率、高声波时差、高井径，低自然伽马、低密度特征；煤层发育原生煤、碎裂煤、碎裂-碎粒煤和碎粒-糜棱煤4种煤体对应的平均煤体结构指数分别为29.4 ，69.2，70.4和76.7 ；区内构造煤整体发育呈“中间构造煤发育，四周原生煤发育，构造煤以碎裂煤为主，见碎粒-糜棱煤发育”特征，且发育规律严格受研究区构造分布特征控制。
关键词:煤体结构;测井曲线;识别模式;塔山矿
doi:10.16186/j.cnki.1673-9787.2019110059
基金项目:国家重大科技专项项目（2017ZX05035004 ）；江苏高校优势学科建设工程项目（PAPD）
收稿日期:2019/11/14
修回日期:2020/03/30
出版日期:2021/07/15
Recognition of coal structure based on different logging curves ：A case of Tashan mine in Datong coalfield
DUAN Hongyue1, DUAN Hongfei2, XIE Weidong3
1.Coal Geological Geophysical Exploration Surveying & Mapping Institute of Shanxi Province， Jinzhong 030600 ， Shanxi， China;2.Datong Coal Mine Group Co. ， Ltd. ， Datong 037000 ， Shanxi， China;3.School of Resources and Geosciences， China University of Mining and Technology， Xuzhou 221116 ， Jiangsu， China
Abstract:To investigate the structure characteristics of No. 3 〜No. 5 coal seam and the corresponding logging curves identification method of Tashan mine of Datong coalfield， the data of more than 50 boreholes and logging results of Tashan coal mine was taken as the reasearch basis. Through the combination of logging curve interpretation ，structural index of structural coal body and calculation of primary coal proportion， the qualitative and quantitative analysis of structural coal development characteristics was carried out， and the plane distribution pattern of structural coal of Tashan mine was drawn. The results showed that ： The No. 3 〜No. 5 coal seam of Tashan mine were characterized by high resistivity， high acoustic time difference， high borehole diameter， low natural gamma ray and low density on logging curves ； There were four kinds of structural coal in coal seam， including primary coal， fractured coal， fractured-fragmented coal and fragmented-mylonite coal， and the corresponding coal structure index were 29.4 ，69.2 ，70.4 ， and 76.7 ， respectively ； The overall development of structural coal was characterized by “ middle structural coal development， primary coal development around， mainly cataclastic coal and clastic-mylonitic coal development” ， and the development regularity was strictly controlled by the structure distribution characteristics of the study area.
Key words:coal structure;logging curve;identification model;Tashan mine coal
