Determination of Reservoir Permeabiiity From Repeated induction Logging

Abstract

Summary When fresh-water mud filtrate invades a gas reservoir containing a saline connate water, a low-resistivity annulus will form and propagate into the formation. Analysis of how readings from an induction log change with time can yield reasonable estimates of formation permeability. This paper describes a method and presents field data that can be used to estimate permeability from time-lapse logging data.