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| Analysis of coal petrological characteristics of Longtan coal series in Liupanshui Minefield |
| Zhao Lipeng1, Zhong Fangjun1, Gao Wei2, Zhou Peiming2 |
| 1. Laboratory of Coalfield Geology Bureau of Guizhou Province, Guiyang 550008, China; 2. Guizhou Coalbed Methane Shale Gas Engineering Technology Research Center, Guiyang 550008, China |
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Abstract The Longtan coal series in Liupanshui coalfield is humus coal. The macro coal type is mainly semi-bright coal. Inorganic microscopic components are mainly clay minerals and quartz. The content of organic micro-components ranges from 69.20% to 93.43%. The maximum reflectance of vitrinite is 0.891% ～ 1.930%, which is generally medium coal grade coal Ⅲ ～ Ⅴ. Such coal seams are conducive to the enrichment and high production of coal seam gas.
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