渤海油气成藏特点及与断层关系

根据渤海近40年勘探成果,对已钻的一百余个构造的有关资料进行了综合分析,研究了渤海现有油田和含油构造的成藏特点,探讨了渤海油气藏与断层活动的关系。发现凸起与低凸起之上的披覆背斜与走滑扭压背斜是渤海最佳油气藏类型;上第三系馆陶、明化镇组是渤海主要含油气层系,其次是下第三系东营组和沙一、二段。渤海独特的盆地发育历史,尤其是晚第三纪中、后期郯-庐断裂的再次强烈走滑活动,对该区油气成藏有重要影响。

THE RELATIONSHIP BETWEEN THE CHARACTERISTIC OF HYDRO CARBON AND THE FAULT AND HYDROCARBON EXPLORATION IN BOHAI

This text is based on the exploration achievement of near 40 years and the data analysis of more than one hundred drilled traps on in Bohai. The characteristics of oil fields and oil-bearing structures have been studied. The relationships between the characteristic of hydrocarbon reservoir and the action of fault system have been discussed in Bohai. It is found that the draping anticline on salient and the wrench-compression anticline on low salient are the most valid type of hydrocarbon-bearing pool. Both Neogene Guantao and Minghuazhen Formations are major oil-bearing series and Paleogene Dongying Formation and Shahejie 1&2 member are secondary ones. The distinctive history of basin developing and especially Neogene Tan-Lu fault system activated strongly again affected the formation of hydrocarbon reservoir significantly in Bohai.