苏单格庙气田煤系烃源岩生烃特征评价

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Ⅱ：型干酪根，其余都为Ⅲ型干酪根。

Evaluation of the hydrocarbon-generating characteristic for coal-bearing hydrocarbon-source rocks of Suligemiao gas field

By means of source rocks pyrolysis, organic ma tt er abundance and hydrocarbon-generating potential, organic matter type have sys temically been studied, it is indicated that coal and carbonaceous mudstone in Taiyuan Formation, Benxi and Shanxi Formation are not hydrocarbon-source rocks; a great number of coal -bearing mudstones contain weak-mid hydrocarbon-source rocks in Shanxi Format ion, then that of Taiyuan Formation belongs to non-hydrocarbon-source rocks. T h ermal evolution effect on organic carbon abundance and hydrocarbon-producing po tential is negligible, at the same time, organic carbon abundance is positive wi th hydrocarbon-producing potential. Taiyuan and Benxi Formation source-rocks i s humic kerogen; one sample in Shanxi Formation is sapropelic-humic kerogen, ot her samples belong humic kerogen.