用显微荧光和显微傅立叶红外光谱研究显微组分的热演化规律

Studying Individual Macerals Using FTIR Microspectroscopy and Fluorescence Spectroscopy on the Thermal Evolution

镜质体反射率是确定油源岩成熟度最广泛使用的参数，显微荧光强度及其变化也已成为检测烃源岩有机质生烃尤其是生油的标志之一，而红外光谱在研究生油母质干酪根的结构、类型和生烃潜力等方面均取得了大量的研究成果，特别是傅立叶红外显微镜的问世，给单显微组分提供了一种有效的研究手段。本文应用上述方法对一套人工熟化样品进行了检测和分析，探讨了显微组分的光性演变特征和化学成分的变化规律，并建立了显微组分的生油模式。

Vitrinite reflectance is an extensive parameter on determining the source rock mature degree, fluorescence microspectroscopy can measure the oil generated potential of source rocks. A lot of results were made by the infrared spectra method in kerogen structure, type and hydrocarbon potential, especially, FTIR microspectroscopy is coming out and becomes an important method of studying individual macerals. This paper observed and measured a set of heat treatment samples from low rank coals and carbonaceous mudstones using the above methods, discussed optical and chemical composition characteristics of individual macerals and the thermal evolution, and set up an individual maceral oil generating model.