The above workflow represent the process through which core-porosity and core-permeability values are estimated for wells that have log data (Gamma Ray, Density, Sonic, SP, Resistivity ...) but not core data.

Using ISI's workflow shown above, all available information such as Depth, Latitude, Longitude, log data (Gamma Ray, Density, Sonic, SP, Resistivity ...) from logged wells are used along with some relevant geostatistical data in order to estimating Porosity and Permeability.

REFERENCES
Intelligent Data Evaluation & Analysis; IDEA™
SPE 98012
SPE 65675