关键词: 油区, 亚油区, 储量, 产量, 潜力, 渤海湾

Abstract: A series of petroleum systems have been discovered in Bohai Bay petroleum region,including the Tertiary,the Mesozoic,the Paleozoic and the Proterozoic.Among these systems,the Tertiary is the main target for hydrocarbon exploration and production in the past 50 years,and six petroleum sub-regions have been proved,there are Liaohe,Dagang(including Jidong),Shengli,Jizhong,Zhongyuan and Sea area.According to the time interval between four milestones including the initial point of exploration,the discovery point of hydrocarbon,the 60%point of oil in place(OIP),and the peak of annual production,the exploration and production process of all of the sub-regions mentioned above,can be categorized into three types including fast maturation,medium-rate maturation,and slow maturation.As the production and OIP growth curves of six sub-regions are stacked together,it is very clear that the time of peak OIP and that of peak production for those sub-regions are at different time intervals,and made the growth curves of Bohai Bay petroleum region form a multi-peak type.The Tertiary petroleum system,right now,is still in a "mid-stage of exploration".About more than half of the resources have not yet turned into OIP.In all sub-regions,the Dagang and the Sea area sub-regions would be the main area for the growth of OIP and production in the near future.The future annual crude oil production is estimated to keep a rate of more than 60 million tons per year before 2030 and 50 million tons per year in 2031-2050,and the resources foundation should be considered security.Three petroleum systems in the pre-Tertiary are all promising for hydrocarbon exploration.

Key words: petroleum region, petroleum sub-region, oil in place, production, potential, Bohai Bay