渤海湾盆地油气地质与勘探

渤海湾盆地历经40余年油气勘探,目前仍总体上处于勘探中期。在综合分析渤海湾盆地(陆上)20世纪勘探和研究成果的基础上,提出了以下新的认识:渤海湾盆地是在古生界—中上元古界克拉通上形成由石炭—二叠系残留含煤盆地、中生界裂谷盆地和新生界裂谷盆地四者相叠置的叠合盆地;太行山东深大断裂控制沙四段—孔店组及前第三系油气藏的形成与分布;第三系生油凹陷的地质结构控制油气的富集程度等。并提出精细勘探第三系生油凹陷是储量持续增长的基础和潜山油气藏勘探是储量跃进式增长的希望。

Oil/gas Geology and Exploration in Bohai Bay Basin

Although Bohai Bay Basin has undergone through oil and gas exploration for over 40 years, its exploration is still in middle stage in general. On the basis of comprehensive analysis the exploration and research results onshore Bohai Bay Basin in 20th century, it is put forward that the following new ideas, i.e. Bohai Bay Basin might be a superimposed basin which was superimposed by Carboniferous-Permian coal-containing remained basin, Mesozoic rift basin and Cenozoic rift basin based on Paleozoic and middle- upper Proterozoic craton; Dongshen large fault in Taihangshan Mountains controls the formation and distribution of oil-gas reservoirs distributed in the 4th member of Shahejie Formation , Kongdian Formation and pre-Tertiary; The geological structure of Tertiary oil- generating sag controls the enrichment degree of oil and gas, and it is pointed out that it is key method for reserves increment to fined exploration for the Tertiary oil-generating sags, it is hope to explore the burial hill oil/gas reservoirs to ensure the bound increase of reserves.