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Re: Calculating Porosity and Permeability with Well Logs
For calculating porosity from well log, you can use Archie Equation and its derivation based on formation you evaluate.
For calculating permeability you can use several correlation such as Indonesia, etc.
You are welcome. But I have to apologize, My Friend. I think I've mistaken between porosity and water saturation. The one that can be calculated using Archie Equation and its derivation is water saturation. From well logs, porosity can be determined directly from middle value between neutron and density log on the tray for quick purpose (the porosity from middle value can be read from neutron scale as neutron log scale give direct reading of porosity). For more valid value of porosity, calculation need to be done for density, neutron and sonic log with several correction.
Once again, I'm sorry for my mistake.