Study on flow units based on factor analysis

Key words:  reservoirs  factor analysis  flow unit  reservoir

Abstract:

Six representative common factors (storage factor, flow factor, heterogeneity factor, interlayer factor，layer thickness factor and saturation factor) reflecting the inner rules of them were extracted by means of factor analysis from seventeen parameters including interlayer number, sand thickness, inlerlayer thickness, layer thickness, ratio of sand thickness to layer thickness porosity, permeability, and formation capacity. 821 specimens were classified into four flow units with the aid of cluster analysis and discriminant analysis. Afterwards, stochastic modeling by restraining flow units was applied, and then prediction and simulation of attribute field were done by sequential Gaussian stochastic simulation. The prediction results are perfect, which indicates that this method is capable of describing reservoir finely and quantitively.