我国聚煤盆地煤系烃源岩生烃评价与成烃模式  

The Evaluation of Coal-Measure Source Rocks of Coal-bearing Basins in China and Their Hydrocarbon-Generating Models

作　　者：肖贤明[1] 刘德汉[1] 傅家谟 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室

出　　处：《沉积学报》1996年第A00期10-17,共8页Acta Sedimentologica Sinica

基　　金："八五"国家重点科技攻关项目

摘　　要：本文应用有机岩石学方法与有机地球化学方法通过对我国煤成烃盆地典型煤系烃源岩的研究，提出了煤系烃源岩评价指标与标准，并以显微组分成烃规律为基础，建立起了我国含煤岩系的四种主要成烃模式。本研究成果对我国煤成烃勘探具有重要指导意义。Detailed research has been done on organic petrology and geochemistry of the coalmeasure source rocks sampled from typical coal basins in China. The following acknowlegements have been obtained:1) Coals can generate a large amount of gas as well as some liquid hydrocarbons during the thermal-maturation evolution. The source matter which can generate oil in coals includes not only exinite, but also desmocollinite and even a part of telocollinite.2) Coal macerals are the main parameters to evaluate the hydrocarbon potential of coalmeasure source rocks. According to the Rock-Eval and element analysis results,the coalmeasure source rocks can be subdivided into four types: c, Ⅱ c,Ⅲ c and Ⅳ c.Ⅰc and Ⅱ c can generate a large amount of oils and may form coal-generated oil and gas fields under the suitable geological background. However,type Ⅲ c and Ⅳ c can mainly generate gas.3) The hydrocar bon-generating patterns of coals mainly depend on the types and amount of hydrocabron-generating macerals. On the base of the hydrocarbon-generating patterns of coal macerals, the hydrocarbon-generating model for the four types of coal-measure source rocks has been suggested. This model will be very useful to the evaluation and exploration of coal-measure source rocks of coal-bearing basins in China.

关 键 词：煤系 烃源岩 显微组成 成烃模式 油气田 

分 类 号：P618.130.1[天文地球—矿床学] P618.130.2[天文地球—地质学]