Controls of base-level cycles on the macroscopic heterogeneity of reservoir: taking the sixth to the eighth units in the middle of Es3 of Huzhuangji Oilfield as an example
The macroscopic heterogeneity of reservoir is closely related to its sedimentary microfacies and the extent of sandstone development, and it is obviously controlled by the variation of accommodation caused by base-levels rising or subsiding and the alimentation of sediment. The high-resolution sequence stratigraphic framework of the studied area is set up by the identification, division and contrast of the base-level cycles. The interzonal heterogeneities of the middle-term cycles are described by means of ...