中国未熟-低熟油的基本特征及成因

Essential Characteristics and Origin of the Immature Oil in China

低熟油是一种重要的非常规能源矿产资源。中国中、新生界陆相含油气盆地中,多发现未熟-低熟石油。在大量查阅、整理与综合前人资料的基础上,对我国低熟油的分布、物理化学特征、判别标志、成因等进行了归纳、总结与论述。生物标志化合物是低熟油判别的有效手段之一,无机催化作用在低熟油的形成中具有重要意义,因此,在有相关的微量元素等无机因素存在的情况下,低熟烃源岩区的低熟油勘探就可能具有一定的潜力。

The immature oil,which is a kind of important unconventional energy resources, is found almost in every Mesozoic-Cenozoic continental petroliferous basin in China. The paper summarized and elucidated the distribution of the immature oil in China, physical chemical features, identification index,and hydrocarbon origin on the basis of the extensive study of the former data on the immature oil. The biomarker is one of the effective means to identify the immature oil, in the formation of which the inorganic catalysis plays an important role. Therefore, the exploration of the immature oil in the regions of the immature hydrocarbon resource rocks may have enormous potential with the existence of such inorganic factors as relative trace elements.