Complex conductivity model for shaly sands

M. H. Waxman, H. J. Vinegar

Research output: Contribution to conferencePaperpeer-review


Complex conductivity in shaly sands is interpreted in terms of in-phase and quadrature elements. The model relates the in-phase conductivity of shaly sands to the brine conductivity, water saturation, and clay counterion concentration per unit volume of water present in the pores of the sandstone. The model has recently been extended to account for the effects of shaliness, brine conductivity and oil saturation on the reactive part of the electrical conductivity at low frequencies (Induced Polarization). Several aspects of the theory have been verified experimentally.

Original languageEnglish
Number of pages8
StatePublished - 1 Jan 1987
Externally publishedYes
Event12th World Petroleum Congress, WPC 1987 - Houston, United States
Duration: 26 Apr 19871 May 1987


Conference12th World Petroleum Congress, WPC 1987
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology


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