惠民凹陷商河地区沙一段发育多层碳酸盐岩沉积。
Many layers of carbonate rock deposition existed in the first member of Shahejie formation in Shanghe area of Huimin sag.
王庄油田沙一段粉细砂岩因敏感性严重，导致该油藏长期处于低效开发状态。
In Wangzhuan Oilfield, there existed serious sensitivity in Es1 silty sandstone, it caused low efficient production for long time.
通过系统的层序地层学研究，建立了红星地区古近系沙一段的高精度层序地层格架。
By studying sequence stratigraphy systematically, the high resolution sequence stratigraphic framework of Es1 in Hongxing area is established.
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