新立油田Ⅴ区块扶余油层沉积微相研究

The Sedimentary Microfacies Study of Block V in Fuyu Reservoir of Xinli Oilfield

以新立油田Ⅴ区块扶余油层为例，结合区域沉积地质背景，从岩心、录井、测井等资料入手，通过对岩石学、沉积学特征的研究，认为该区主要发育浅水三角洲沉积，包括三角洲前缘与三角洲平原2个亚相，其中水下分流河道、决口扇、河口坝、水下天然堤等微相较为发育。在此基础上，通过横向对比，研究了区内各小层的沉积微相平面分布规律，分流河道宽度从70～310m不等，平均宽度为165m。

By taking Block V of Fuyu Reservoir in Xinli Oilfield for example,starting from the core,geological log and well logging data and studying the characteristics of petrology and sedimentology and combined with regional geological background,it was considered that shallow water delta deposition,including two subfacies of delta front and delta plain was mainly developed in the area,where underwater distributary channel,crevasse splay,mouth bar,underwate levees were more developed.On the basis of study,through a lateral comparison,the plane distribution rules of sedimentary microfacies of each sublayer are studied in the area.The width of distributary channel is 70 to 310m and average width is 165 m.