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本文根据组分化学动力学原理，从成熟度史的降解率研究入手，建立组分生烃模型；并根据压实、扩散机理，建立组分排烃模型（包括压实排烃模型和扩散排烃模型）。据此，实现了各组分排出史及排油史、排气史的同步计算，完善了盆地模拟系统（ＢＡＳＩＭＳ）。该方法适用于各种压实作用明显的油气盆地，在大民屯凹陷三台子洼陷应用获得了成功。
Based on the principle of component chemical kinetics, starting with the study of the degradation rate of maturity history, a component hydrocarbon generation model was established. Based on the mechanism of compaction and diffusion, a model of hydrocarbon expulsion (including compaction expulsion model and diffusion row Hydrocarbon model). Based on this, we achieved the simultaneous calculation of the discharge history of each component, the history of oil discharge and the history of exhaust gas, and perfected the basin simulation system (BASIMS). The method is applicable to all kinds of oil and gas basins with obvious compaction effect and has been successfully applied in Sandaizi Sag of Damintun Sag.