Abstract: The largest oil-productive base in China has been established in Bohai Bay Basin since its hydrocarbon discovery 40 years ago.Meanwhile,the theory on formation and distribution of oil-gas reservoirs in Tertiary rift has been completed a lot. It involves in multiple oil-gas-bearing structural sequences, multiple oil-gas accumulation zones,oil-gas reservoir types, trap boundary combination,oil-gas-bearing unit, and classification of petroleum exploration and evaluation stages and so forth. Exploration features and increase in reserve are obviously influenced by breakthroughs in frontier areas,and the application of theory and technology in exploration. So far,there are still many exploration frontier areas and great hydrocarbon potential in Bohai Bay Basin.

Key words: oil-gas accumulation, rift, oil-gas trap, Bohai Bay Basin

摘要： 渤海湾含油气盆地发现40年来已建成为我国最大的油区。同时,也形成与建立了第三系裂谷系油气藏形成与分布理论,包括裂谷系对含油气断陷和含油气层系的控制、普遍存在多含油气结构层系、复式油气聚集区带形成、油气藏类型特点及圈闭边界组合以及含油气单元序列与油气勘探评价阶段的划分等。勘探特点与储量增长受新领域突破和理论技术与勘探融合的明显影响。渤海湾盆地至今仍有许多勘探领域和很大的油气潜力。

关键词: 渤海湾盆地, 裂谷系, 油气聚集, 油气圈闭, 单元序列