A section of reservoir can be modeled as a rectangular block, with linear flow of oil through it. The face producing oil is 10 ft high by 120 ft wide. The length over which the pressure drop occurs is 1000 ft. The rock has two layers. The lower 8 ft of the 10-ft thickness has permeability 20 mD. The upper 2 ft has permeability 300 mD. Pressure on the producing face is 3200 psi; pressure on the opposite face is 4500 psi. Viscosity of the oil is 0.85 cp and specific gravity is 0.81. B_o is 0.90 rb/stb. What rate is oil produced in units stb/day?

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k