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本文提出了一种新的烃源岩生排烃组分法模拟模型。组分法生烃模型根据热模拟实验得到的组分产率曲线模拟烃源的生烃史。排烃模型包括开放体系模型和间歇开放体系模型，分别用于模拟以压实作用为主要动力的孔隙排烃和以异常高压为主要动力的微裂缝排烃。这一模型根据孔隙温度、压力和烃类组成，采用热力学方法模拟孔隙体系流体体积和相态的变化、不同组分在各相中的分布，并由此求出各组分的排出量和总排烃量。对陕甘宁盆地古生界源岩生排烃史的模拟结果表明，该模型具有实用价值
In this paper, a new model of hydrocarbon generation and expulsion component method is proposed. Component hydrocarbon generation model The source hydrocarbon generation history is simulated based on the component yield curve obtained from the thermal simulation experiment. Hydrocarbon expulsion models include open system model and intermittent open system model, which are used to simulate pore-expulsion of hydrocarbons and compaction-driven micro-fracture hydrocarbon expulsion respectively, which are mainly driven by abnormal high pressure. Based on pore temperature, pressure and hydrocarbon composition, this model uses the thermodynamic method to simulate the change of volume and phase of fluid in the pore system and the distribution of different components in each phase. Exhaust volume. The simulation results of the Paleozoic source rocks in the Shaanxi-Gansu-Ningxia Basin show that the model has practical value