(17. A. Dolomite core sample having a porosity of 21.3% with 100% water saturation was Set under the resistivity test. The dimension of this core plug is 3 inch length x1 inch. diameter. If the resistivity of water is 2.3m, then the resistance of the core is 50.7194.71.28 18. Using resistivity logs only, you can identify permeable and non-permeable zones by The resistivity values of shallow, medium, and deep at the permeable zone are different. The resistivity values of shallow, medium, and deep at the permeable zone are the same. The resistivity values of shallow, medium, and deep at the permeable zone are lower than the layer above