INDUCED POLARIZATION OF SHALY SANDS.

H. J. Vinegar, M. H. Waxman

Research output: Contribution to journalArticlepeer-review

472 Scopus citations

Abstract

Equations have been developed that relate induced polarization (IP) in shaly sands to measurable petrophysical parameters. The induced-polarization process has been modeled in terms of two mechanisms: clay counterion displacement and membrane blockage. The resulting equations can be used to determine shaliness, brine conductivity, and oil saturation from in-phase and out-of-phase conductivities. Laboratory measurements have confirmed the IP dependence on these variables, as well as on temperature. Refs.

Original languageEnglish
Pages (from-to)1267-1287
Number of pages21
JournalGeophysics
Volume49
Issue number8
DOIs
StatePublished - 1 Jan 1984
Externally publishedYes

ASJC Scopus subject areas

  • Geochemistry and Petrology

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