苏北盆地高邮凹陷阜宁组油气成藏期研究

在前人研究的基础上,对苏北盆地高邮凹陷阜宁组的埋藏史、热演化史和生烃史进行了数值模拟,分析了流体包裹体岩相特征及均一温度。研究认为,阜宁组经历持续沉降—抬升—再沉降的过程,从古新世阜宁末期到始新世三垛末期大量生烃,油气在始新世三垛期开始连续充注成藏。油气充注深凹带早于北斜坡,三垛期为高邮凹陷主要成藏时期。油气主要成藏期与烃源岩大量生排烃期和圈闭形成时间匹配,有利于该区油气充注成藏。

Analysis on Hydrocarbon Accumulation Period of Funing Formation in Gaoyou Sag,Subei Basin

This paper runs a numerical simulation of the history of burial,thermal evolution and hydrocarbon generation in Funing Formation,and analyzes lithofacies features and homogeneous temperature of fluid inclusions,based on previous study.The results show that hydrocarbon source rock in Funing Formation experienced continual subsidence period,lifting period and resubsidence period in turn.Hydrocarbon was generated from the late Paleocene Funing Formation to the late Eocene Sanduo Formation,and continuously char...