【摘要】 东营凹陷沙三段发育了大量浊积岩,构成了完整的浊积岩体系,是油气勘探的重要目标。在充分分析了东营凹陷地质背景的基础上,从岩性特征、电性特征和地震剖面特征等方面研究了东营凹陷沙三段近源深水浊积扇、滑塌浊积扇及洪水浊积扇的沉积模式,并从生储盖条件、运移通道及油气封存箱等方面探讨了浊积岩油藏的形成机制及成藏模式。研究认为东营凹陷沙三段浊积岩具有有利的生储盖条件,具备形成油藏的条件,是下一步勘探的有利目标。更多还原

【Abstract】 There are a lot of turbidite sand Unties in the third member of Shahejie Formation in Dongying Depression. They composed of an integrated turbidity system,which was the important target of petroleum exploration. Based on the analysis of geological settings in Dongying Depression,the depositional models of turbidite fans of proximal and deep-water, fluxoturbidite and flood turbidite were researched from the points of features of lithology,electric nature and seismic cross section. The formation mechanism of the turbidite reservoir was discussed by analyzing source rock-reservoir-seal assemblage, migration pathway and abnormally pressured fluid compartment. And the hydrocarbon accumulation models of the turbidite reservoirs were built. The turbidite sand bodies in third member of Shahejie Formation in Dongying Depression have favorable condition for hydrocarbon accumulation with good source rock-reservoir-seal assemblage. And they will be the profitable exploration targets in the posterior exploration.更多还原