Articles | Volume 7, issue 4
https://doi.org/10.5194/se-7-1157-2016
https://doi.org/10.5194/se-7-1157-2016
Research article
 | 
29 Jul 2016
Research article |  | 29 Jul 2016

Archie's law – a reappraisal

Paul W. J. Glover

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Cited articles

Archie, G. E.: The electrical resistivity log as an aid in determining some reservoir characteristics, Trans. AIME, 146, 54–67, 1942.
Carothers, J. E.: A statistical study of the formation factor relation, Log Anal., 9, 13–20, 1968.
Ewing, R. P. and Hunt A. G.: Dependence of the electrical conductivity on saturation in real Porous media, Vadose Zone J., 5, 731–741, https://doi.org/10.2136/vzj2005.0107, 2006.
Glover, P. W. J.: What is the cementation exponent? A new interpretation, The Leading Edge, 28, 82–85, https://doi.org/10.1190/1.3064150, 2009.
Glover, P. W. J.: A generalised Archie's law for n phases, Geophysics, 75, E247–E265, https://doi.org/10.1190/1.3509781, 2010.
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Short summary
In 1942 Archie discovered equations which have been used ever since to calculate reserves of oil and gas around the world. Two equations exist, one which is theoretically justified, and one which is not. Unfortunately it is the one which is not justified that often gives the best results. This research examines the extent to which the two approaches give differing results, concluding that the Winsauer et al. form of Archie's equations is better for use with data containing systematic errors.