Questions 1. Calculate the water saturation of clean consolidated sandstone given the following rock properties and Archie parameters: - Total porosity, t=0.26 - Resistivity of sandstone, Rt=22.5m - Resistivity of formation water, Rw=0.265m - Cementation factor =1.953 - Water saturation index =1.861 - Archie parameter, a=0.838 Questions 2. Determine the porosity for a sandstone using Archie's and Humble equation. The formation water's resistivity was 50cm The formation rock 100% saturated with this water was 21.05m. 3. (a) Given the following data, calculate the electrical formation resistivity factor and saturation exponent of the core. Rw=55ohmcm; I=0.01amp;D=2.54cm;L=3.2cm Questions (b) The laboratory test in 3(a) was repeated for several core samples from the reservoir. Data is given below. Calculate the cementation factor and intercept for the formation resistivity factor equation