Consider the well shown below. The vertical depth is 6,615 ft. and the well is f
ID: 2995879 • Letter: C
Question
Consider the well shown below. The vertical depth is 6,615 ft. and the well is filled to the top with a incompressible oil of density 4S lbs/ft3. The valve has been closed so that all flow has stopped. The pressure gauge (P1) at that point reads 4410 psia. At the bottom end of the horizontal extension is the entry point of the well. The pipe is plugged with a 10 cm long porous cylinder separating it from the reservoir fluid at pressure Pi. The permeability of the plugging material is 100 mD. (mills darcy). The vertical piping is 15 cm in diameter, the horizontal piping is 8 cm. inner diameter. Given the above information what is the reservoir pressure P2 ? Now assume that the valve is opened fully so that, under steady state flow, the pressure P1 becomes 14.7 psia. Assume the fluid has 5 cp viscosity . What is the flow rate out through the valve?Explanation / Answer
Yes ..Exactly..Because the valve is now opened and a pressure of 22019.7 exists at point 2...And a pressure of 14.7 psi at point 1...So these two pressures will constitute the required pressure difference...