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南桐煤矿是重庆市煤炭产量较高的矿区之一,其主采二叠系上统龙潭组6#、5#及4#煤层。对主采煤层的煤质特征及含气性进行研究,得出结论:研究6#、5#、4#煤层均为中灰、低挥发分、中高硫-高硫、高热值、中等~中高固定碳、黏结性、结焦性较好的焦煤;研究煤层成因类型均属腐植煤,由高等植物在沼泽环境中形成;研究煤层中煤层气资源含量丰富,建议可采取先地面抽采利用煤层气,再井下开采煤炭资源。
Nantong Coal Mine is one of the coal mines with relatively high coal production in Chongqing Municipality. The main mining area is the 6 #, 5 # and 4 # coal seams of the Upper Permian Longtan Formation. Based on the research on the coal quality characteristics and gas-bearing properties of the main coal seam, it is concluded that the coal seams 6 #, 5 # and 4 # are medium ash, low volatile matter, medium-high sulfur, high sulfur, high calorific value, High fixed carbon, cohesive and coke good coking coal; research coal genetic types are all rotting coal, formed by the higher plants in a swamp environment; research coal seam rich in coalbed methane resources, it is recommended to take the first surface extraction and utilization of coal Gas, then underground coal resources.