Correctly Quantifies Polarization due to Clay in Shaly Sands

(From Low [IP] to High Frequencies [RF])

A total (bulk) volume weighted rather than pore volume weighted CEC

• Qv initially worked in quantifying RF polarization because the original sample set had very little variation in porosity

Gedanken Experiment

• If I had 2 rocks with identical Qv but where one had twice the porosity of the other, they both could not have the same polarization density (i.e., permittivity)
• Therefore, we need to normalize to the total volume, not the pore volume (polarization is a volume weighted phenomenon)
• This has been verified by measurements on samples having a wide range of porosity

This is a very simple but profound breakthrough in quantifying the polarization due to clay in shaly sands.