东营凹陷中央断裂背斜带油气运移聚集特征

以渤海湾盆地最大的复式油气聚集带──东营凹陷中央断裂背斜构造带为例，分析凹中隆型复式油气聚集带的油气运移聚集特征和成藏模式，探讨该构造带中断层对油气运移聚集的多方面影响。根据油气来源、运移特点和流体压力状况，将该带油气藏的形成归纳为下部自源原生型、中部它源原生型、上部它源次生型３种成藏模式。研究区具有早第三纪末和晚第三纪馆陶组沉积末─明化镇组中期这两个主要成藏期，以晚期成藏为主。油气沿断裂间歇式运移，并沿断层形成多套叠瓦式油藏组合。断裂的纵向发育层位与油气的赋存层系有密切关系。

Migration and accumulation of hydrocarbons in the central anticline belt of Dongying depression, Bohai Bay basin

Based on the geological data of the central anticline belt in Dongying depression, which is the largest typical multiple petroleum concentration belt in Bohai Bay basin of China, the petroleum migration and accumulation characteristics of this play have been discussed in the paper, and actions of fault on the migration and accumulation of hydrocarbons are also studied. The three kinds of model for the formation of oil and gas pools occur in the area. There are two main stages of petroleum migration and accumulation, and most of hydrocarbon pools formed in the later stage. The intense vertical petroleum migration process occurred many times in this play during Tertiary period, and a composite petroliferous play whose most of hydrocarbon pools are distributed along the faults formed.