Consider an oil well drilled to a depth of 1000 ft and connected to the surface 3 with 4-in (internal diameter) new commercial steel pipe. if the pressure in the well reservoir is a constant 500 psig, what is the expected flow rate of liquid oil (in barrels per day) at the surface if the surface pipe is open to atmosphere? assume 1000 ft of equivalent pipe and no gas flow with the oil. the specific gravity of the oil is 0.93, and its viscosity is 0.4 centipoise. an oil barrel is 42 gal. make sure that you clearly state and justify any assumptions.