山东东营凹陷第三系同沉积构造的控砂控油作用

从构造、沉积、成藏相互关系进行分析的角度,系统论述了东营凹陷第三系同沉积构造对沉积和油气成藏的控制作用,揭示了同沉积构造有利于油气生成、运移、聚集、保存的基本条件。分析认为,在大中型油气藏相继被发现之后,当前东营凹陷应该充分运用层序地层学理论、含油气系统理论及成藏动力学理论,研究同沉积构造的发育演化过程对沉积过程、圈闭形成过程以及成藏过程的控制作用和时空匹配关系,以提高勘探效果。同沉积构造的研究日趋由定性向定时和定量方面发展,不但更加重视动力机制研究,也开始逐步完善定量化过程模拟。

Control function of synsedimental structure on sand and oil in Dongying depression

In light of the relationship between the structure,sedimentation and reservoir formation,the authors discussed the control function of Tertiary syndepositional structure on sedimentation and oil-gas diagenesis in Donying depression,and exposed the fundamental conditions advantageous to the formation,migration,aggregation and conservation of oil-gas.Through analyses,the authors found that,since the discovery of the large to medium scaled oil reservoirs,some theories shall be introduced in terms of Dongying depression,they are sequence stratigraphy,petroliferous system and reservoir forming dynamics,into the study of the evolution course syndepositional structure,its effect to oil-gas sedimentation,and trap formation as well as control to oil reservoir diagenesis and time-space matching relationship,to improve the exploration effect.