Abstract

Permeability has been estimated making use of the concept of Flow Zone Indicator (FZI). Flow Zone Indicator has been obtained from the combined use of the well log data. Well logs are evaluated for porous and permeable sand layers from a total depth interval of 220 m. Permeability values have been calculated for four sand layers varying thicknesses from 3 to 4 m. Flow zone indicator (FZI) for porous and permeable layers from a well are calculated from transformation of Gamma Ray, neutron porosity, density, deep resistivity logs. Calculated permeability value ranges from 30.64 md to 231.05 md for hydrocarbon bearing layers.