• 责任者：Wang Xinxin (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Zheng Rongcai
• 刊名：Journal of Chengdu University of Technology
• 出版年：2012
• 卷期：39(3)
• 关键词：砂岩储集层 ; sandstone reservoirs ; 鄂尔多斯盆地 ; Ordos Basin
• 页码：p.277-284
• 图表：3 illus., 3 tables, 13 refs.
• 分类号：1003
• issnNo：ISSN1671-9727
• isbnNo：CN51-1634/N

This paper studies Chang 9 sandstone reservoirs of Triassic Yanchang Formation in the Longdong area. The results show that there are develop the distributary channel and underwater distributary channel sandbodies of shallow-water deltas. The sedimentary facies control the distribution of reservoir sandbodies, and the compaction, cementation and dissolution control the pore structure and physical property. The reservoir sandstones of Chang 9 oil-bearing layer can be classified into four types. The most advantageous microfacies are distributary channels, underwater distributary channels and mouth bars of the shallow-water delta.