吉林大学学报(地球科学版) ›› 2020, Vol. 50 ›› Issue (1): 31-40.doi: 10.13278/j.cnki.jjuese.20180275
• 地质与资源 • 上一篇
李维禄1, 高思宇1, 张翼2, 张金亮3, 韩春花1
Li Weilu1, Gao Siyu1, Zhang Yi2, Zhang Jinliang3, Han Chunhua1
摘要: 复杂沉积环境下沉积相及其演化的准确描述可以有效地指导油气田的勘探和开发过程。结合东濮凹陷卫城油田的区域沉积背景,利用岩心描述、录测井和分析测试等资料对东濮凹陷卫城油田卫81区块沙河街组四段的沉积特征与沉积相模式进行了全面分析。结果显示:该区块地层发育末端扇-滨浅湖滩坝相过渡型沉积,沙四下段河流末端能量损失、流量波动,发育末端扇沉积,分流河道顺物源方向向河道漫溢和泥滩演化,形成扇状堆积体;随湖平面频繁大面积扩张收缩等沉积环境变化,沙四上段演化为滨浅湖滩坝沉积,滩坝砂体整体呈复合砂体连片平行于主控断层走向分布。
中图分类号:
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