摘要
我国沉积盆地内发育石炭—二叠系、侏罗—白垩系和古近—新近系3套火山岩,火山岩与有效烃源岩近源组合匹配最有利,远源组合需断层或不整合面沟通,生烃中心控制油气分布;以火山熔岩、火山角砾岩和风化壳岩溶型储层为主;中国东部断陷盆地火山岩油气藏以近源组合为主,沿断陷高部位爆发相火山岩储层发育,斜坡部位喷溢相火山岩大面积分布,主要形成岩性、构造—岩性油气藏;中西部发育两种成藏组合,沿不整合面分布的风化淋滤型大型地层油气藏最有利。
Carboniferour-Permian,Jurassic-Cretaceous and Paleogene-Neogene volcanic reservoirs have acted as the exploration play in China.Volcanic reservoirs located near the source rocks are the most beneficial for hydrocarbon accumulation,so the hydrocarbon-generation centers control the hydrocarbon distribution,and the volcanic reservoirs located far from the source rocks need through faults and the discomformities surfaces.The lava,volcanic breccia and volcanics located in weathered crust are the dominant reservoirs.In the rift basins of eastern China,volcanic reservoirs are mainly composed of lithologic and structural-lithological type and are formed near the source rock centers;in the basins of central and western China,volcanic reservoirs formed near or far from the source rocks,and stratigraphic reservoirs are formed along the uncomformity surfaces.
出处
《中国工程科学》
2010年第5期30-38,共9页
Strategic Study of CAE
关键词
火山岩储集层
火山岩相
成藏主控因素
volcanic reservoir
volcanic facies
key factors controlling the reservoir formation
