Q.1 An oil reservoir with an area of 10,000 acre, a thickness of 100 ft, the average porosity is 20%, connate water saturation is 25%, and oil formation volume factor = 1.29 bbl/STB; calculate how many barrels (bbl's) of oil in place? If recovery factor is 60%, how many stock tank barrels can be produced? Q.2 Given the following data about a filed: Area (A)= 28000 acers Net productive thickness (h)= 45 ft Water saturation (Sw)= 45% Porosity (O)= 10 % Initial oil formation volume factor= 1.7 bbl/STB Residual oil saturation (Sor)= 20% Evaluate the initial oil in place in reservoir bbls, the recovery factor, how many STB can be produced? Q.3 Calculate the initial oil in place in STB and the recoverable oil of an oil reservoir exist at its bubble point pressure of 3000 psia and temperature of 160 F. The oil has an API gravity of 42 and gas oil ratio of 600 scf/STB. The specific gravity of the solution gas is 0.65. The following additional data are also available: Reservoir area = 640 acres Average thickness = 10 ft Connate water saturation= 0.25 Absolute porosity = 18% Effective porosity = 15% Residual oil saturation= 10% Initial oil formation volume factor = 1.306 bbl/STB