# PE 453 EXAM1 fall2008 - AL-FATAH UNIVERSIY Faculty Of...

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AL-FATAH UNIVERSIY Faculty Of Engineering Department Of Petroleum Engineering Applied Reservoir Eng. (PE-453) Mid-Term Exam. #1 ( Fall 2008) ______________________________________________________________________________ IMPORTANT EQUATIONS General Form of MBE : BwWp Bg Rsoi Rp Bt Np We p Swi cf cwSwi NBti m Bgi Bg Bgi NmBti Bti Bt N ] ) ( [ ) ( 1 1 ) ( Pyramid formula: 1 * 1 3 n n n A A A A n h Vb Trapezoid formula: 1 2 n A A n h Vb --------------------------------------------------------------------------------------------------------------------- Q-1 Reference to the above general form of MBE, 1- Write down the expression for RF (NP/N) Equation for undersaturated Res. Above Pb. 2- Write down the expression that represents gas expansion drive. 3- List down three factors affecting the recovery factor. 4- For undersaturated oil reservoirs, pressure drops below Pb, the increase ……., increase ……. .and decrease ……. 5- Explain the relation between Res. Pressure and oil viscosity above and below pb pressure.

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