渤海湾油气区在第三纪沉积时期,由于受华北“翘倾”块断活动的控制,在断块体的下倾部位形成了许多下第三系的箕状凹陷,在每一个深凹陷的一侧,几乎都分布着一个宽缓的斜坡地带。随着勘探工作的逐步深入,对这些斜坡地带的含油远景越来越引起人们的重视。特别是继辽河坳陷西部斜坡突破了大面积含油以后,最近又在冀中坳陷北部京津地区的牛北斜坡及河南泌阳凹陷西南斜坡等取得了喜人的战果。因此,分析研究这些斜坡带的油气藏形成条件与分布规律,对扩大新的找油领域具有非常现实的 During the Tertiary sedimentary period in the Bohai Bay, due to the control of the “tilting” block activity in the North China, many lower-third-series dustpan-like depressions formed at the downslope of the fault block. In each deep-depression On one side, there is almost a broad ramp. As exploration work progresses, more and more attention has been paid to the oil content of these slopes. Especially since the western slope of the Liaohe Depression broke through a large area of ​​oil, it recently achieved gratifying results in the Niubeizang slope in the northern Beijing-Tianjin area of ​​the Jizhong Depression and the southwestern slope of the Biyang Depression in Henan. Therefore, analyzing the formation conditions and distribution rules of the oil and gas reservoirs in these slope zones is very realistic for expanding the new oil-finding field