单井流动单元的方差分析识别方法

Identification method of variance analysis on flow units for single well.

在分析研究不同流动单元概念及其划分方法的基础上,结合油田开发实际,提出了流动单元新的定义,即流动单元为横向和垂向上连续的具有相似的渗透率、孔隙度的储集带,其边界为区域上稳定发育的泥岩、不连续薄隔挡层、各种沉积界面、小断层等。综合利用地质、测井资料,根据数理统计原理,建立了在单井上划分流动单元的方差分析识别方法,提高了流动单元定量刻画的精度。

Based on the study of various flow units concept and its classification method, new flow unit is defined by the combination of actual oilfield development. It is a continuous reservoir belt that has similar porosity and permeability on lateral and vertical direction, and its boundary is regionally stable developed mudstones, un-continuous thin barrier layers, various depositional interfaces, craven faults, permeability discrepancy and so on. Identification method of variance analysis on flow units for single well is proposed based on mathe-matical statistical principle by using geological and logging data comprehensively, this method improved the accuracy on quantitative division of flow unit.