3. (40 points) A core from a reservoir is used in a laboratory test to determine two-phase oil and water relative permea

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3 40 Points A Core From A Reservoir Is Used In A Laboratory Test To Determine Two Phase Oil And Water Relative Permea 1 (155.86 KiB) Viewed 36 times

3. (40 points) A core from a reservoir is used in a laboratory test to determine two-phase oil and water relative permeability. Initially, a small plug from the core is cleaned and dried. Then, it is saturated with water. An injection test using only water is conducted to obtain the absolute permeability. Then, only oil is injected to reduce the water saturation to the irreducible water saturation. Then, concurrent injections of oil and water at different ratios are made to obtain the imbibition relative permeability at different saturation values. The water saturation values are determined using a weighing method. Use the data given below to calculate and plot the imbibition oil and water relative permeability versus water saturation. Annotate your curves with arrows. Neglect capillary pressure and gravity. Assume kbase = ko(Swir). Length Diameter Dry wt. Pout Patm = = 6.350 cm 3.810 cm 126.7928 g 14.97 psi = 0.103 Pw Po Hw Ho Oil Rate (cm³/min) Water Rate (cm³/min) 0.00 4.00 3.00 0.00 2.85 0.15 1.50 0.36 1.00 1.00 0.40 1.67 0.00 2.00 1.083 g/cm³ 0.728 g/cm³ 1.00 cp 0.8902 cp Pin (psig) 45.6 38.1 76.8 74.9 122.5 110.2 101.3 Weight (g) 134.8716 133.7936 133.8884 133.9771 134.0592 134.1618 134.2135