Manuel David Soto. MSc in Geological Sciences, University of Texas at Austin, USA.
In this notebook (salw_rw.ipynb) three methods or formulas to convert salinity (ppm) to water resistivity (Rw) are evaluated. The formulas are; one proposed by E. R. Crain at his web site (https://spec2000.net/00-index.htm), one from Bateman-Konen, and the last formula one from Kennedy. These last two formulas are in Kennedy, D., Technical Note: The Bateman-Konen Resistivity-Salinity Transform II, PETROPHYSICS, Vol 56, NO.4 (August 15), Pg 379-381. For control points, those in Gen-6 of the Schlumberger (2013) Log interpretation charts, are considered effectiveness verification of the formulas.
Here is a list of libraries necessary for this notebook:
numpy
matplotlib
pandas
scikit-learn
openpyxl