坡折带理论在油气勘探中的应用

摘要/Abstract

摘要： 坡折带理论是层序地层学在陆相盆地应用中的新发展。在分析坡折带理论的基础上总结了该理论在油气勘探中的应用。指出,坡折带对陆相盆地层序发育、沉积体系域和砂体分布都具有明显的控制作用,对油气运聚也起着重要作用,可以根据坡折带确定陆相盆地的首次湖泛面、砂体及烃源岩的分布范围。讨论了坡折带与非构造油气藏的关系,阐述了如何利用坡折带理论指导非构造油气藏勘探。坡折带理论是寻找非构造油气藏的又一新思路。

关键词: 坡折带, 层序地层学, 陆相盆地, 非构造油气藏, 油气勘探

Abstract: The theory of slope break is an advance of sequence stratigraphy applied in terestrial basin. This paper reviews the application of this theory to petroleum exploration and points out that slope-break zone can control the development of continental sequence stratigraphy, distribution of the depositional system tracts and sand bodies. Hence, the first lake flooding surface in terrestrial basin and the scope of distribution of its sand body and source rock can be determined by the theory of slope break. Slope-break zone could even control the hydrocarbon migration and accumulation. Based on these, this paper discussed the relationship between slope-break zone and non-structural reservoir and highlights how to apply this theory in prospecting of non-structural oil-gas reservoirs. It is concluded that the theory of slope break is a new thought of looking for non-structural reservoir.

Key words: slope break, sequence stratigraphy, terrestrial basin, non structural reservoir, subtle trap, petroleum exploration

中图分类号:

TE111.3

游李伟, 彭军, 陈果, 汪彦. 坡折带理论在油气勘探中的应用[J]. 新疆石油地质, 2005, 26(3): 322-325.

YOU Li-wei, PENG Jun, CHEN Guo, WANG Yan. Application of the Theory of Slope Break to Petroleum Exploration[J]. Xinjiang Petroleum Geology, 2005, 26(3): 322-325.

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