摘要
渤海湾盆地油气勘探实践证明 ,丰富的油气资源与富含有机质的生烃凹陷具有十分密切的关系。陆相断陷盆地多沉降中心、多物源供给和充填演化的多旋回性 ,发育了多套有机地球化学特征不同的生油层系和多种油气储集相带组合 ,形成了不同层系、不同圈闭类型的复式油气聚集带 ,并在空间上构成了多个相互交叉、叠置或并列的复合含油气系统。研究表明 ,盆地叠加演化及动力学环境所构成的复式成盆系统孕育了复式成烃系统 ,复式生烃系统的特点决定了油气成藏的复杂性 ,它们控制了复合含油气系统 (多源油藏 )
The exploration in Bohai Bay Basin evidenced that abundant oil resources are closely in connection with the rich hydrocarbon-generation sag full of organic matter.The terrestrial fault basin characterized by multi-depression center,variable source supply and multi-cycle of infilling evolution developed several oil source beds with different geochemical features and different combination of oil-gas accumulation zones.The multiple oil-gas accumulation zones characterized by different formation and trap types were formed.Some multiple hydrocarbon-bearing systems composed of multi-crossed,superimposed or juxtaposed zones were generated in the space.The complex basin forming system composed of imposed evolution and hydrodynamic setting gave rise to the occurrence of multiple hydrocarbon-bearing systems.The various features of the multi hydrocarbon-bearing systems caused the complexity of oil-gas reservoirs and controlled the occurrence and distribution of multiple hydrocarbon-bearing systems with poly-resource.
出处
《石油学报》
EI
CAS
CSCD
北大核心
2004年第2期12-18,共7页
Acta Petrolei Sinica
基金
国家"十五"重大科技攻关项目 (2 0 0 1BA60 5A0 9)资助
关键词
复式成盆系统
复式成烃系统
复式成藏系统
复合含油气系统
断陷盆地
沾化凹陷
complex basin-forming system
multiple hydrocarbon-bearing system
complex reservoir formation system
faulted basin
Zhanhua Sag
