Abstract: Thermal evolution simulation tests of kerogen of sapropel type in the immature source rocks from No. 1 Nen Section of Cretaceous of Songliao basin are carried out, together with analyses of the loss of weight due to heating and of the products of simulation tests (in gas and liquid state) to indicate the significance of heat and time of exposure to heat in the evolution of kerogen. The process of transformation of kerogen into hydrocarbons is discussed through a comparative study of the properties of its evolution products with those of oil and gas, and it is proposed that hydrocarbons are formed due to increase of temperature that leads to the constant internuclear adjustment of bonds of various functional groups of kerogen.

摘要： 本文用松辽盆地白垩系嫩一段未成熟生油岩的腐泥型干酪根、进行了热变模拟试验、热失重分析以及热变模拟产物(包括气态、液态)的分析,指出了干酪根演化过程中温度和受热时间的意义。根据热变产物和油、气性质的比较,讨论了干酪根转化及成烃过程,认为烃类的生成是由于温度的增加,不断地调整干酪根核间各种官能团化学键的结果。