东地中海深水油气富集条件与勘探方向  

Deep-water hydrocarbon accumulation conditions and exploration target in the Eastern Mediterranean

作　　者：田琨[1] 王大鹏 殷进垠[1] 郭金瑞[1] Tian Kun;Wang Dapeng;Yin Jinyin;Guo Jinrui(Sinopec Petroleum Exploration and Production Research Institute)

机构地区：[1]中国石化石油勘探开发研究院,102200

出　　处：《中国石油勘探》2021年第3期107-116,共10页China Petroleum Exploration

基　　金：国家自然科学基金项目“特提斯地球动力系统重大研究计划”(91755211)。

摘　　要：东地中海油气资源丰富、勘探程度低,是近年全球深水油气勘探热点地区之一。东地中海深水油气富集条件研究对该地区油气勘探选区选带具有指导意义。基于国际油气商业数据库和地质地球物理资料,应用石油地质综合研究方法,对东地中海构造沉积演化、油气地质条件、储盖组合及成藏特征进行分析,进而探讨深水油气富集条件及未来勘探方向。研究结果表明,东地中海发育中新统生物礁灰岩+盐岩、中新统浊积砂岩+盐岩主力储盖组合及白垩系浊积砂岩+泥页岩、侏罗系生物礁灰岩+泥灰岩推测储盖组合。厚层渐新统—中新统海相烃源岩、优质中新统盆底扇浊积砂岩和生物礁灰岩储层、区域性盐岩盖层及构造反转期发育的大型构造圈闭控制了东地中海深水油气富集。未来应重点关注黎凡特盆地深水区中新统浊积砂岩领域和埃拉托色尼台地周缘中新统生物礁灰岩领域,深入探索希罗多德盆地深水区中新统浊积砂岩领域和黎凡特盆地中生界深层领域。The eastern Mediterranean has become one of the global hot spots of deep-water oil and gas exploration in recent years owing to its abundant oil and gas resources and low degree of exploration.The study of deep-water hydrocarbon enrichment conditions in the Eastern Mediterranean is of guiding significance to the selection of exploration zones and plays in this area.This paper analyzes the tectonic sedimentary evolution,petroleum geological conditions,reservoir-caprock assemblages,and hydrocarbon accumulation characteristics of the Eastern Mediterranean and discusses the deep-water hydrocarbon enrichment conditions and exploration targets by comprehensive petroleum geological study on the international oil and gas commercial database and geological and geophysical data.The results show that there are two main reservoir-caprock assemblages of Miocene reef limestone+salt rock and Miocene turbidite sandstone+salt rock,and two inferred reservoir-caprock assemblages of Cretaceous turbidite sandstone+shale and Jurassic reef limestone+marl in the Eastern Mediterranean.The deep-water hydrocarbon enrichment in the Eastern Mediterranean is controlled by thick Oligocene-Miocene marine source rocks,high-quality Miocene basin floor fan turbidite sandstone and reef limestone reservoirs,regional salt caprocks and large structural traps developed during the tectonic inversion period.In the future,favorable plays of Miocene turbidite sandstone in the deep-water area in the Levant Basin and Miocene reef limestone around the Erotosthenes platform should be focused on,and new fields of Miocene turbidite sandstone in deep-water area in the Herodotus Basin and deep Mesozoic in the Levant Basin be further explored.

关 键 词：储盖组合 油气富集 勘探方向 深水 东地中海 

分 类 号：TE19[石油与天然气工程—油气勘探]