潘三井田11^(-2)煤层煤层气地质特征及开发潜力分析  

Analysis of Geological Characteristics and Development Potential of Coalbed Methane in 11^(-2)Coal Seam of Pansan Field

作　　者：荚胜丰 李丹丹 陈本良[1,4] 杜新锋 唐勇敢 王正喜 张明志 罗荣道 周韬 JIA Shengfeng;LI Dandan;CHEN Benliang;DU Xinfeng;TANG Yonggan;WANG Zhengxi;ZHANG Mingzhi;LUO Rongdao;ZHOU Tao(Huainan mining(Group)Co.,Ltd.,Huainan,Anhui 232001;Huainan Mining Group Coalhed Methane Development and Utilization Co.,Ltd.,Huainan,Anhui 232000;Xi’an Research Institute Group Corp,China Coal Technology and Engineering,Xi’an,Shaanxi 710077;Ping’an Coal Ming Institute of Engineering Technology Co.,Ltd.,Huainan,Anhui 232001)

机构地区：[1]淮南矿业(集团)有限责任公司,安徽淮南232001 [2]淮南矿业集团煤层气开发利用有限责任公司,安徽淮南232000 [3]中煤科工西安研究院(集团)有限公司,陕西西安710077 [4]平安煤炭开采工程技术研究院有限责任公司,安徽淮南232001

出　　处：《中国煤炭地质》2025年第3期16-21,共6页Coal Geology of China

基　　金：安徽省公益性地质工作项目(2024-G-1-6);淮南矿业(集团)有限责任公司科技项目“松软低透煤层条件煤层气开发利用与瓦斯治理协同技术研究”。

摘　　要：淮南矿区煤层气资源丰富,为更加清晰探究矿区煤层气地质特征及开发潜力,首先采用地质勘探资料与实验室分析测试数据研究了潘三井田煤层气地质特征,再基于煤层气含量、埋深、厚度和资源丰度等参数划分了资源有利区,采用数值模拟技术预测了煤层气井的产能,最后施工一组煤层气井组进行验证。结果表明:潘三井田南部区域11^(-2)煤层较厚、含气量较高、埋藏深度适中、构造简单,储层条件有利于煤层气赋存;构造煤发育,煤储层渗透性非均质较强,煤层气抽采难度大;资源有利区位于井田南部,面积16.50 km^(2),产能超过储量规范;施工的PS-U2井组的排采数据表明产量较高,证实潘三井田南部11^(-2)煤层具有较好的煤层气开发潜力。CBM resources is rich in Huainan mining area.In order to more clearly explore the CBM geological characteristic and development potential of Huainan mining area,Pansan field was selected for research.The geological characteristics was studied by combining outdoor geological exploration with indoor test.Based on the content,burial depth,thickness and resource abundance,the favorable areas of resources were divided,and the productivity of coalbed methane well was predicted by numerical simulation technology in favorable areas.Finally,a set of coalbed methane well group was constructed for verification.The results showed that the 11^(-2)coal seam in the southern part of Pansan field was thick,with high gas content,moderate burial depth,simple structure,and the reservoir condition was conducive to the occurrence of coalbed methane.The tectonic coals were developed,with strong heterogeneity of permeability,and the extraction of coalbed methane was difficult.The favorable area of resources was located in the south of field,with an area of 16.50 km^(2),and the predicted productivity results exceeded the reserve specification which used the numerical simulation technology.The drainage data of PS-U2 well group showed that its production was high,which confirmed that the 11^(-2)coal seam in the south of Pansan mine field had good coalbed methane development potential.

关 键 词：煤层气 11^(-2)煤层 工程试验 开发潜力 潘三井田 

分 类 号：P618.13[天文地球—矿床学]