摘要
从岩性地层油气藏形成的盆地类型、岩性地层油气藏在层序地层格架中的分布规律、控砂因素、控藏因素以及控制富集区带因素等方面,系统总结了近年来有关岩性地层油气藏分布规律和控制因素的相关基础地质理论,为进一步推进该领域的发展提供理论参考。研究资料表明:陆相岩性地层油气藏形成的盆地类型有陆相断陷盆地、陆相坳陷盆地和陆相前陆盆地3种,盆地类型不同,各体系域(低位、水进和高位体系域)中油气的分布规律也不同;岩性地层油气藏形成的控制因素有控砂因素和控藏因素以及控制富集区带的因素,控砂因素有斜坡、断裂、古水深、古气候、古物源和构造运动,控藏因素有最大湖泛面、区域不整合面和断层面,控制富集区带的因素有有利沉积相带、断裂发育带、地层尖灭带、次生孔隙发育带、流体性质变化带、构造坡折带。
This paper systematically summarizes the theories about distribution and controlling factors of lithologic and stratigraphic oil-gas reservoirs from basin types, their distribution in sequence stratigraphic framework and controlling factors of sand, reservoirs and accumulation zone, which provides a basis for further theoretical study. Continental lithologic and stratigraphic oil-gas reservoirs are formed in the faulted basin, depression basin and foreland basin. However, their distribution in system tracts varies in different type basins. Controlling factors of lithologic and stratigraphic oil-gas reservoirs formation include controlling factors of sand, reservoirs and accumulation zone, while controlling factors of sand include slope, fault, paleo-water-depth, paleo-climate, paleo-sediment source and tectonic movement. In contrast, reservoirs are controlled by maximum flooding surface （MFS）, regional unconformity surface and fault surface, and the accumulation zones are subject to favorable sedimentary facies, fault-developed belts, strata termination belts, secondary porosity developed belts , fluid property changed belts and tectonic slope-break belts.
出处
《地质科技情报》
CAS
CSCD
北大核心
2009年第5期71-77,83,共8页
Geological Science and Technology Information
关键词
岩性地层
油气藏
控制因素
富集区带
层序
lithology and stratigraphy
oil-gas reservoir
controlling factor
accumulation zone
sequence
