蠡县斜坡西柳地区沙河街组尾砂岩高分辨率层序地层学研究

High Resolution Stratigraphy of Bottom Sand in Shahejie Formation in Xiliu Area,Lixian Slope

应用高分辨率层序地层学理论和方法,综合利用测井、岩心和分析化验资料,对蠡县斜坡西柳井区的沙河街组沙一下亚段尾砂岩段进行高分辨率层序地层分析,在整个尾砂岩段识别出一个半中期旋回层序及6个短期旋回层序,依据地层等时对比法则建立尾砂岩段的高分辨率层序地层格架,在等时格架的基础上进行单砂体对比,分析有利储层的发育规律。

The bottom sand in Shahejie formation in Yanling area was divided into a semi mid-term sequence cycle（ MSC1 ＋ MSC2 uprising half cycles） and six short term sequence cycles,through the high resolution stratigraphy theory and methods,relying on well log data,cores and analysis. Based on the principle of isochrostratigraphy,isochronous stratigraphic framework within which single-body correlated was established. Finally,the distribution of reservoir was analysed within the isochronous stratigraphic frameworks.