Ultrafast Determination of Archie and Indonesia m&n Exponents for Electric Log Interpretation: a Tight Gas Example

It may take several months to measure the Archie or Indonesia parameters of a tight rock. As a result, a long time elapses between the acquisition of electric logs and their final interpretation. We describe a method that provides reliable measurements of these parameters in one day. The method combines NMR and electrical determinations. The latter are performed using a patented 4-contact cell. A description of method is given and a tight sand case study discussed.