针对鄂尔多斯盆地吴堡地区勘探开发前景,对其三叠系延长组长8储层的沉积背景、岩石学特征、孔隙类型及物性特征进行了深入研究,并讨论了物性与砂体成因的关系。在此基础上,将储层划分为四类,Ⅰ类为好储层占14.9,Ⅱ类中等储层仅占12.3%,Ⅲ类差储层占51.1%,Ⅳ类非储层占21.7%,以Ⅲ类储层为主,采用Ⅱ、Ⅲ类作为有效储集岩,预测了三个有利勘探区。 According to the prospects of exploration and development in the Wubu area of ​​Ordos Basin, the sedimentary background, petrological characteristics, pore types and physical properties of Chang 8 reservoir in Triassic Yanchang Formation are studied in depth and the relationship between physical properties and the genesis of sand body is discussed. On the basis of this, the reservoirs are divided into four types: Class I is 14.9 for good reservoirs, 12.3% for Medium II reservoirs, 51.1% for Grade III poor reservoirs, and 21.7% for Non-Grade IV reservoirs, Based on the type Ⅲ reservoirs, Ⅱ and Ⅲ are used as effective reservoir rocks, and three favorable exploration zones are predicted.