杜永慧;李晓路;韩小琴;曹红霞;于兴河;

• 1:陕西延长石油(集团)有限责任公司研究院

• 2:中国地质大学(北京)能源学院

摘要(Abstract)：

根据薄片观察及粒度分析、野外露头及岩心观察,分析鄂尔多斯盆地东南部山西组的岩石学特征、水动力条件,以及宏观和微观沉积特征,划分岩相类型和岩相组合,建立该区三角洲前缘沉积模式。结果表明:鄂尔多斯盆地东南部山西组沉积粒度偏细,分选好,水动力条件以牵引流为主;三角洲前缘沉积特征明显,且沉积地形坡度较缓;划分7种岩相类型和3种岩相序列组合。研究区整体表现为三角洲前缘沉积特征,主要发育水下分流河道、水下分流间湾、分流河口砂坝3种微相。该结果为鄂尔多斯盆地东南部山西组天然气精细勘探开发提供参考。

关键词(KeyWords)：沉积模式;沉积特征;三角洲前缘;山西组;鄂尔多斯盆地东南部

Abstract:

Keywords:

基金项目(Foundation):

作者(Author):杜永慧;李晓路;韩小琴;曹红霞;于兴河;

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