Abstract: Distribution of carbon isotopes in asphalt extracts from Cretaceous in Songliao and Paleogene in Dongying is discussed, together with its geochemical significance to the study of mechanism of oil generation and correlation of source materials of oil. In the last part, the origin of CO₂ gas in some part of Binnan oil field in Dongying depression is surveyed based on data of carbon isotopes.

摘要： 本文首先讨论了松辽盆地白垩系和东营凹陷下第三系生油岩抽提沥青的碳同位素分布规律,及其在成油机理和油源对比中的地球化学意义。最后,以东营凹陷滨南油田的CO₂气为实例,利用碳同位素资料,探讨了该油田几个主要区块CO₂气的成因。