选用在很长地质历史中都广泛分布的松粉（Ｐｉｎｕｓ）作为高温高压釜热模拟的实验样品，收集热压模拟中的气态、液态、固态产物，并对其进行孢粉学和地球化学研究，认为孢粉具有两期生烃高峰：孢粉中内含物参与了早期的未熟—低熟油的生成，孢粉素则为成熟期的主要成油母质。建立了孢粉生烃模式，为研究未成熟—低成熟石油的生成机制提供了实验依据。 Pi-nus, which is widely distributed in the long geological history, is selected as the experimental sample for thermal simulation of autoclave. The gaseous, liquid and solid products in the autoclave simulation are collected and analyzed for palynology and earth Chemical studies suggest that sporopollen has two periods of hydrocarbon generation: sporopollen inclusion is involved in the formation of immature-low mature oil in the early stage, while sporopollenin is the major oil-forming parent in mature stage. The sporopollenic hydrocarbon generation model was established, which provided experimental evidence for the study of the formation mechanism of immature-low mature oil.