A Fractured/Matrix Model for Estimating Water Saturations in Reservoir Rocks

Abstract

Wr'lte Pub.l'lcations Manager SPE P 0 Box 833836, Richardson, TX 75083-3836. Telex, 730989 SPEDAL. where and by w om t e paper 1s pres en . , , · · _ ABSTRACTIn this paper we present a model for calculating water saturations in clean, fine-grained, fractured rocks.The model, called the fracture/matrix (F/M) model, is used to calculate a composite poro~ity exponent, m, which is then used in Arch1e's relationship to calculate water saturations.An application of the F/~ model.to wells located in S.E. New Mex1co wh1ch penetrate the Bone s·pring sands is presented.