Characteristics and Evaluation of Zao IV Group of Kong I Zone in Zaobei Oilfield

Abstract

Based on the characteristics of sedimentary facies, lithology, physical properties and heterogeneity for the reservoirs, a comprehensive evaluation for the reservoirs is researched, so as to determine the relative quality difference for different layers and different blocks, providing geological pursuant to the development of oilfield. The results show that Zao IV Group of Kong I Zone can be divided into three types, of which class I accounted for 26%, class II accounted for 42% and class III accounted for 32%, and reflected the strong degree of inhomogeneous of reservoir.