| 重庆地区二叠系上统龙潭组/吴家坪组煤变质规律及其对煤层含气量的影响 |
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| 引用本文： | 杨明显,李大华,陈飞.重庆地区二叠系上统龙潭组/吴家坪组煤变质规律及其对煤层含气量的影响[J].中国煤炭地质,2011(11):27-30,40. |
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| 作者姓名： | 杨明显 李大华 陈飞 |
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| 作者单位： | 外生成矿与矿山环境重庆市重点实验室重庆地质矿产研究院;煤炭资源与安全开采国家重点实验室重庆研究中心; |
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| 基金项目： | 重庆市国土资源和房屋管理局科研项目 |
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| 摘 要： | 通过对重庆地区煤炭资源勘查资料总结,分析了二叠系煤类分布特征,并探讨了煤变质对煤层含气量的影响。分析认为,重庆地区二叠系煤层主要以高、中变质煤的无烟煤、贫煤和瘦煤为主,煤类分布具有明显的分带性,煤变质作用以区域深成变质类型为主;煤的变质程度R0为1.39%~2.51%,处于吸附能力较强的阶段,因此煤层含气量较高,其中松藻矿区无烟煤R0为2.43%~2.51%,煤层含气量达27.1m3/t。
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| 关 键 词： | 煤类分布 煤变质作用 煤层含气量 重庆地区 |
Upper Permian Longtan and Wujiaping Formations Coal Metamorphic Pattern and Its Impact on Coal Seam Gas Content in Chongqing Area |
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| Yang Mingxian,Li Dahua, Chen Fei.Upper Permian Longtan and Wujiaping Formations Coal Metamorphic Pattern and Its Impact on Coal Seam Gas Content in Chongqing Area[J].Coal Geology of China,2011(11):27-30,40. |
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| Authors: | Yang Mingxian Li Dahua Chen Fei |
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| Institution: | Yang Mingxian1,2,Li Dahua1,2 and Chen Fei1,2(1.Municipality Key Laboratory of Exogenetic Ore-forming and Mine Environment,Chongqing Institute of Geology and Mineral Resources,Chongqing 400042,2.Chongqing Research Center,State Key Laboratory of Coal Resource and Safety Mining,Chongqing 400042) |
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| Abstract: | Based on the summarization of coal resource exploration data in the Chongqing area,analyzed Permian coal rank distribution features,and discussed impacts on coal seam gas content from coal metamorphism.The analysis has considered that the Permian coal in Chongqing area is mainly high to medium metamorphosed anthracite,meager coal and lean coal;coal rank distribution has obviously zonation;coal metamorphism type is mainly regional deep-seated metamorphism.The R0 of metamorphosed coal is 1.39%~2.51% in strong... |
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| Keywords: | coal rank distribution coal metamorphism coal seam gas content Chongqing area |
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