渤海海域经历了 30多年的油气勘探 ,直到 90年代 ,由于对渤海海域油气成藏的特殊性有了充分认识并用于指导实践 ,油气勘探才出现了重大转机。渤海海域油气成藏的特殊性表现在 :渤海海域是整个华北含油气盆地发育、发展的归宿 ;渤海海域新构造运动十分活跃 ,郯庐断裂在东营晚期—第四纪是强烈活动期 ,调整和控制了晚期成藏 ;渤中坳陷下第三系比周围陆区下第三系多一套东营组下段—沙河街组一段烃源岩 ;渤中坳陷上第三系明化镇组与馆陶组发育浅湖相沉积 ,是华北含油气盆地上第三系储盖组合最佳的地区 ;渤中坳陷与周围呈环状展布的凸起和低凸起带 ,构成了油气成藏的特殊地质结构。渤海海域油气成藏的特殊性 ,决定了勘探的主要目的层是上第三系馆陶组和明化镇组 ,找油气的主要方向是被生烃凹陷包围的凸起及其倾没带 ,包括分割凹陷和凸起的边界断层附近的各类反转构造。通过自营和合作勘探 ,相继发现了 QHD32 - 6、NB35 - 2、CFD11- 1、BZ2 5 - 1、PL19- 3等一批大中型油田 ,实现了渤海海域油气勘探的重大突破和转折 ,对海洋石油事业的持续发展和保持我国东部石油稳产将起重大作用 Bohai Sea experienced more than 30 years of oil and gas exploration. Until the 1990s, due to the special recognition of oil and gas accumulation in the Bohai Sea and its guidance to practice, oil and gas exploration turned into a major turning point. The peculiarities of hydrocarbon accumulation in the Bohai Sea are as follows: the Bohai Sea is the foothold for the development and development of the whole petroliferous basin in North China; the Neotectonic movement is very active in the Bohai Sea; the Tanlu fault is strongly active in the late Dongying-Quaternary, Controlled the late hydrocarbon accumulation; the Lower Tertiary in the Bozhong Depression is more than the Lower Tertiary in the Peripheral Zone; the first member of the Dongying Formation-the first member of Shahejie Formation; the upper member of the Upper Triassic Minghua Formation in the Bozhong Depression Guantao Formation developed shallow lacustrine facies, which is the best reservoir-cap assemblage of the Tertiary in the North China oil-bearing basin. The Bozhong Depression is surrounded by the circumferentially distributed raised and low raised zones, Tibetan special geological structure. The peculiarities of oil and gas accumulation in the Bohai Sea determine that the main exploration target is Guantao Formation and Minghua Formation in the Tertiary. The main direction for oil and gas exploration is the bulge and dip zone surrounded by hydrocarbon generating depression, Including the division of the depression and the convex boundary fault near the various types of inversion structure. Through self-exploration and cooperative exploration, QHD32-6, NB35-2, CFD11-1, BZ2 5-1 and PL19-3 have been discovered in succession, which have achieved major breakthroughs and transitions in oil and gas exploration in the Bohai Sea. The sustainable development of offshore oil business and to maintain a stable oil production in eastern China will play a big role