通过热解法对苏里格庙气田煤系源岩的有机质丰度、生烃潜力及其有机质类型进行了研究。结果表明:苏里格庙气田太原组、本溪组以及山西组的煤和碳质泥岩为非烃源岩,大部分山西组煤系泥岩属于差—中等烃源岩,少部分为非烃源岩,太原组则为非烃源岩。源岩中有机碳含量和生烃潜量不受其成熟度的影响,且有机碳含量和生油潜量呈明显的正相关关系。苏里格庙气田太原组和本溪组源岩为Ⅲ型干酪根;山西组源岩中1个样品为Ⅱ2 型干酪根,其余都为Ⅲ型干酪根。 The organic matter abundance, hydrocarbon generation potential and organic matter types of the coal measure source rocks in the Suligemiao gas field were studied by pyrolysis method. The results show that the coal and carbonaceous mudstones of Taiyuan Formation, Benxi Formation and Shanxi Formation of the Suligemiao Gasfield are non-source rocks. Most of the coal measures of Shanxi Formation are of poor-moderate source rocks, and a small part of them are non-source rocks , Taiyuan Formation is non-source rock. The organic carbon content and hydrocarbon generation potential in source rocks are not affected by their maturity, and there is a clear positive correlation between organic carbon content and oil production potential. The source rocks of Taiyuan Formation and Benxi Formation in the Suligemiao Gasfield are Type III kerogen. One sample in the source rocks of Shanxi Formation is Type II2 kerogen and the rest are type III kerogen.