List of top Petroleum Engineering Questions on Rock Physics asked in GATE PE

When 92 ml of distilled water (density = 1.0 g/cm³) is mixed with 23 grams of NaCl salt, the density of the resultant brine solution is 1.15 g/cm³. The volume of the brine solution (in ml) is _________.

Which of the following is/are obtained using a core sample?

For a given reservoir of porosity \( \phi = 0.1 \), the water saturation is equal to the irreducible water saturation. The BVI (Bulk Volume Irreducible) water saturation was estimated as 0.04 using NMR (Nuclear Magnetic Resonance) log.
The permeability, k in mD, is estimated using the relation \[ k = 10^4 \phi^4 \left(\frac{FFI}{\phi - FFI}\right)^2 \], where FFI is the Free Fluid Index.
Based on this information, the permeability (in mD) is __________. (Rounded off to two decimal places)