摘要
南鄱阳坳陷二甲村凹陷乐探1井在上白垩统周家店组发现油气显示。其原油的地球化学特征与新疆非树皮煤成因的煤成油对比表明,它既具有煤成油的一般特征(如原油物性、族组分、姥植比、碳同位素特征),又有树皮煤的特殊性(如轻烃甲基环己烷指标、规则甾烷和萜烷的组成特征等),由此认为该井原油主要是由树皮煤形成的煤成油,它与本区广泛分布的海相二叠系龙潭组树皮煤有亲缘关系。
Upper Cretaceous Zhoujiadian oil indication was discovered and oil produced from Well Letan-1 in Erjiachun Sag of Napoyang Depression in 2004. Geochemical analysis shows that correlated with the coal-related oil from some oilfields in Xinjiang, this oil behaves as both common coal-related oil and particular bark coal-related oil. It is demonstrated that this low-yielded oil is mainly a sort of oil originating from bark coal, which is genetically related with marine Permian Longtan bark coal that is widely distributed in this region.
出处
《海相油气地质》
2005年第3期31-35,共5页
Marine Origin Petroleum Geology
