热寺湾地区位于鄂尔多斯盆地陕北斜坡中南部。其三叠统延长组是一套河流和湖泊为主的碎屑沉积。本次研究区长2沉积相研究根据大量的钻井、测井及分析化验资料,运用沉积学方法综合研究该区的沉积相。划分为水上分流河道,天然堤、决口扇、河漫沼泽等微相类型。 Thermal Temple Bay area is located in the Ordos Basin in northern and central slopes of northern Shaanxi. Its Triassic Yanchang Formation is a river and lake-dominated detrital sediment. Based on a large number of drilling, well logging and analytical laboratory data, the sedimentary facies of the Chang 2 reservoir in this study is a comprehensive study of sedimentary facies in this area by using sedimentology. Divided into water diversion channels, natural dike, Bukou Kou, Man Man swamp and other microfacies type.