Sur la correlation existant entre porosite et fagteur de formation dans les sediments non consolides
Journal name: Geophysical Prospecting
Issue: Vol 18, No 4, December 1970 pp. 505 - 515
Info: Article, PDF ( 606.25Kb )
The relationship between porosity and formation factor in unconsolidated homogeneous and anisotropic sediments without granule-liquid interaction is investigated by introducing a parametric model that simulates a variable cellular structure.
In this hypothesis, porosity φ and F-factor are calculated for some fixed values of the parameter, solving numerically two integral expressions.
From these calculations the form of the function φ=f(F), corresponding to the proposed model, has been deduced. This relation is in very good agreement with Archie's empirical law for unconsolidated sands which requires that F=φ--1,3. Therefore it seems that the validity of Archie's law is theoretically confirmed for the unconsolidated sediments considered in this paper.