Question: The initial daily production from a gas-condensate reservoir is 186 STB of condensate, 3750 M SCF of high-pressure gas, and 95 M SCF of

The initial daily production from a gas-condensate reservoir is 186 STB of condensate, 3750 M SCF of high-pressure gas, and 95 M SCF of

The initial daily production from a gas-condensate reservoir is 186 STB of condensate, 3750 M SCF of high-pressure gas, and 95 M SCF of stock-tank gas. The tank oil has a gravity of 51.2 API at 60F. The specific gravity of the separator gas is 0.712, and the specific gravity of the stock-tank gas is 1.30. The initial reservoir pressure is 3480 psia, and reservoir temperature is 220F. Average hydrocarbon porosity is 17.2%. Assume standard conditions of 14.7 psia and 60F. (a) What is the average gravity of the produced gases? (b) What is the initial gas-oil ratio? (c) Estimate the molecular weight of the condensate. (d) Calculate the specific gravity (air = 1.00) of the total well production. (e) Calculate the gas deviation factor of the initial reservoir fluid (vapor) at initial reservoir pressure. (f) Calculate the initial moles in place per acre-foot. (g) Calculate the mole fraction that is gas in the initial reservoir fluid. (h) Calculate the initial (sales) gas and condensate in place per acre-foot.

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