Abstract: Bohaiwan Basin is a composite basin polymerized by a Mesozoic and Cenozoic rift basin and a Carboniferous remnant coal-bearing basin. The Mesozoic-Cenozoic-covering Carboniferous-Permian remnant coal-bearing basins such as the northeast of Jizhong,the south of Jizhong,Huanghua,Dongpu,Jiyang and Kaiping Depressions make up of the composite multi-source oil-gas-bearing system consisting of Carboniferous-Permian coal-formed hydrocarbon source rock,Eogene-Mesozoic dead color shale source rock and Ordovician limestone source rock.This system has the geosyncline-horst alternative geological configuration with much resource.It has 9 sets of source-reservoir-seal assemblage vertically and particular gas reservoir sequence horizontally. It can form the fracture-buried hill complex oil-gas accumulation combination characterized by the pattern of Palaeozoicera-Cenozoic generating-Palaeozoicera-accomulating-Mesozoic sealing.After the high accuracy gravitational prospecting,magnetic exploration,electrical survey,geological &seismic integrated exploration and interpretation are carried out,a group of large and medium-sized natural gas pools may be found through drlling.

Key words: polymerization basin, buried hill, complex oil-gas accumulation combination, natural gas pools, integrated exploration

摘要： 渤海湾盆地是中、新生代裂谷盆地与石炭-二叠系残留含煤盆地的复合叠合盆地。冀中东北部、冀南、黄骅、东濮、济阳和开平等6个中新生界覆盖下的石炭-二叠系煤系残留盆地区,是石炭-二叠系煤成烃源岩、下第三系和中生界暗色泥岩烃源岩以及奥陶系灰岩烃源岩等多源复合含油气系统:具垒、槽相同的地质结构;油气资源丰富;纵向上具九套生储盖组合,平面上具特有的天然气藏序列;形成具“古新混生、古储、中堵”成藏模式的断裂潜山构造复式油气聚集带型油气田,预测通过高精度重力、磁力、电法、地震、地质综合勘探,进行全信息地球物理、地质综合解释、钻探后将会发现一批大中型气田。

关键词: 叠合盆地, 潜山, 复式油气聚集带, 天然气藏, 综合勘探