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近十多年来,国内外石油地质工作者都十分重视油气成熟度的研究,认为干酪根转变成石油的过程中,或石油裂解生成甲烷的过程中,时间和温度都是重要因素。苏联学者H.B.劳普汀在1969年和1971年曾提出时间-温度指数(即T TI值)以反映沉积物中有机物的成熟度,普遍受到国内外的重视。 本文对东台坳陷的金湖、高邮、溱潼三个凹陷各层段的TTI值作过计算,并重点讨论了阜宁组二、四二个主要生油层的成熟度、生油时间和深度,以及形成圈闭的有利时间。
In recent ten years, petroleum geologists at home and abroad have paid great attention to the research of oil and gas maturity. Time and temperature are both important factors in the process of kerogen transformation into petroleum or methane cracking in oil cracking. The Soviet scholar H. B. Lauptin proposed the time-temperature index (TTI value) in 1969 and 1971 to reflect the maturity of organic matter in sediments, which is generally valued both at home and abroad. In this paper, the TTI values of the three sags in Jinhu, Gaoyou and Tongtong of Dongtai Depression are calculated and the maturity, oil production time and depth of the two or four major oil formations in Funing Formation are discussed in detail. , As well as the favorable time to form a trap.