盆地宜川-旬邑地区延长组长6油层组沉积相研究  

Sedimentary Facies Analysis of the Chang 6 Oil-bearing of the Yangchang Formation on the Southeast Margin of Erdos Basin

作　　者：汪建辉[1] 施泽进[1] 田亚铭[1] 

机构地区：[1]成都理工大学"油气藏地质及开发工程"国家重点实验室,四川成都610059

出　　处：《西部探矿工程》2008年第4期85-87,共3页West-China Exploration Engineering

摘　　要：根据野外露头、岩芯、测井及相关测试资料,分析鄂尔多斯盆地宜川-旬邑地区晚三叠世延长组长6油层组的沉积微相及砂体展布特征,了解长6油层组的储层分布规律。结果表明,长6油层组主要发育三角洲沉积、湖泊沉积和湖底滑塌扇沉积。储集砂体为三角洲前缘的水下分流河道和湖底滑塌扇的分支水道,储层分布受沉积特征控制。According to the outcrop observing and the core describing as well as lots of data analyzing, we analyzed the sedimentary microface and the unfold character of sandstones of Triassic Yanchang Formation Chang 6 oil-bearing formation in Erdos basin to realize the regularities of distribution of container rock. It indicated that deltaic depositional system, lake sediments and landslide slump fan are the main sedimentary system of Chang 6 in Yichuan-Xunyi district. Sand bodies of Chang 6 Oil-bearing bed are mainly distributaries channel deposits of delta front facies and of landslide slump facies, the characteristics of deposition controls distribution of reservoir bed.

关 键 词：沉积微相 延长组 长6油层组 宜川-旬邑地区 鄂尔多斯盆地 

分 类 号：TE33[石油与天然气工程—油气田开发工程]