A well produces oil, gas and water with an oil flow rate of 2564stb/day and a fixed wellhead pressure of 100 psia. Given that the average fluid density at the wellhead pressure is 4.63lbm/ft3, use the Poettmann-Carpenter model and the production data below to calculate: a) The mass associated with 1 stb of oil ( 5 significant figures). [4 Marks] b) The average fluid density over the length of the tubing for an initial estimate of 400 psia for the bottom hole pressure ( 3 significant figures). [6 Marks] c) The new bottom hole pressure based on your initial estimate ( 3 significant figures). [6 Marks] d) Improve the accuracy of your answer by calculating the next iteration for the bottom hole pressure. [9 Marks]