同沉积断裂对油气成藏的控制作用

Control Function of Syndepositional Structure on Sand and Oil in Dongying Depression

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断裂对沉积和油气成藏的控制作用,揭示了同生构造有利于油气生成、运移、聚集、保存的基本条件。同沉积断裂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。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,研究同沉积断裂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。

Based on the analysis of the relationship of structure, sedimentary and reservoir forming, this paper has systematically discussed the control function of syndepositional structure on sedimentary and oil-gas reservoir forming in Dongying depression, and exposes that syndepositional structure is a great advantage to oil-gas generation, migration, aggregation, and conservation. The paper also points out that after the large or middle sale oil-gas pools have been discovered one by one, so in order to improve the exploration effect, the theory of sequence stratigraphy, petroliferous system,and reservoir forming dynamics should be used in Jiyang depression to research the control function of the development and evolution process of syndepositional structure on sedimentary, trap and reservoir forming and their relationship with time-space matching. The study on syndepositional structure is developing from qualitative to time-fixing and quantitative. Not only dynamic mechanism is paid regard to in the research, but the simulation of quantitation is going to he perfect step by step.