靖边气田马五段碳酸盐岩层序地层研究

鄂尔多斯盆地聚集了丰富的石油天然气资源，靖边气田就是该盆地发现的特大型气田。储集层类型为下古生界奥陶系古风化壳型，其主力含气层为马家沟组第五段。吸收了前人关于储层地质方面研究的大量成果，从高分辨率层序地层学的角度，研究奥陶系马家沟组马五，一马五，亚段风化壳储层，并展开以准层序级别的层序地层格架分析研究，在此基础上探讨了高分辨率层序地层格架中风化壳的储层特征和天然气藏聚集模式。

Sequence Stratigraphy Study on M5 Carbonate Rock in Jingbian Gas Field

Abundant gas and oil resources are accumulated in Jingbian gas field,which is one of the oversized oil fields discovered in Ordos Basin.The reservoir type is Ordovician weathering crust in the Lower Paleozoic,and the main gas layer is in the fifth member of Majiagou Formation.This paper absorbed mass of former achievements on reservoir geology,and expanded sequence analysis of parasequence level from the first to fifth submember weathering crust reservoir from the point of high resolution sequence stratigraphy.On this basis,it discussed weathering crust reservoir features and pool formation pattern in high resolution sequence stratigraphy.