【摘要】 有机岩石学是一门实用性很强的新兴边缘学科 ,目前作为常规研究手段已广泛应用于油气勘探评价中。文中主要根据作者近年来的研究工作 ,简要总结了未熟—低熟烃源岩显微组分分类与特征、显微组分组成与母质类型、有机质丰度评价、有机质热演化、生烃组分和成烃作用分析等几方面的研究进展 ,充分显示了有机岩石学在未熟—低熟油气评价中良好的应用价值。未熟—低熟烃源岩具有显微组分组成非均质性、有机组分分期生烃和有机质“二段式”热演化等特点更多还原

【Abstract】 Organic petrology is a new and marginal science that is quite practicable. At present, it has been developed into the routine research tool that is widely applied in petroleum exploration and assessment. Based on several years’ research of the authors, this paper presents an overview of the advances in organic petrology of the immature source rocks, including the classifications and characteristics of macerals, and the composition of macerals and types of organic matter, the abundances and evolutions of organic matter, oil prone macerals, hydrocarbon generation and explosion. All these results show that organic petrology is of a good application value in the assessment of immature oil and gas. The immature source rocks consist of various macerals with obvious heterogeneity, contain different hydrocarbon generated macerals with different oil threshold and peak, and appear as a two staged evolutionary pattern of organic matter.更多还原