PE 453 Final EXAM (fall 09) - AL-FATAH UNIVERSIY Faculty Of...

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AL-FATAH UNIVERSIY Faculty Of Engineering Department Of Petroleum Engineering Applied Reservoir Eng. (PE-453) Final Exam. ( Fall 2009) Time: 2 hrs 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 ) ( Q-1 (a) – The main assumptions for derivation of MBE are: 1 ……………………… 2 ……………………. 3 …………………. 4……………………. (b) – Reference to above general MBE, assuming volumetric undersaturated reservoir (We = Wp = 0) Derive the equation ) ( Bt Bti p Ce N NP (d)- The recovery factor (RF) is affected by the following: 1 ………………………………. 2 ………………….…………. 3 ……………………………. Q-2 The following data represents an oil reservoir with no gas cap & no water drive: Pressure OFVF (Bo) Solution GOR GFVF (Bg) (psi) bbl/STB SCF/STB CF/SCF 2500 1.2891 575 --------- 2150 1.2980 575 --------- 1900 1.2410 450 0.00842 1600 1.2095 350 0.0102 1300 1.1866 290 0.01404 Pi = 2500 psi Current Press. = 1900 psi Np = 6.8x10 6 STB Gp = 5.916x10 9
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