PE 453 EXAM1 spring2009 - AL-FATAH UNIVERSITY Faculty Of...

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AL-FATAH UNIVERSITY Faculty Of Engineering Department Of Petroleum Engineering Applied Res. Eng. (PE-453) Mid-Term Exam. #1 ( Spring 2009) ______________________________________________________________________________ Q-1 1 - For MBE concept : V. Oil + V. Gas = V. Water + V. Rock Derive the expressions: V. Gas, V. Water 2- Explain by plot the relation (Bo. Vs. Pressure). Show at what Res. Pressure: Bo = 1.0 3 - To estimate the solution gas oil ratio (Rs) using Standing’s correlation, what are the reservoir parameters that must be known? 4- What are the main factors affecting the Recovery Factor. ---------------------------------------------------------------------------------------------------- Q-2 The following data is obtained for an oil reservoir under water drive support: (i) – Reservoir volume from isopach map: Prod. Area Area Acre Interval (h) ft Ao 4300 0 A1 3170 10 A2 1970 10 A3 930 10 (ii)- Wells’s petrophysical data Well No. h (ft) Well drain.Area (Acre) (%) Swi (%) E-1 28 200 21 35 E-2 20 300 28 28 E-3 35 200 25 33 (iii)- PVT data Press (psi). Boi (bbl/stb) Rso(scf/stb) Pi 2800 1.244 710 Pa 1100 1.11 130 CALCULATE: 1- OOIP using volumetric Avg. method . 2- ( RF ) by Craze & Bucley correlation using Sor = 0.41 and Pa = 1100 psi 3- OGIP.
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Q-3 The following data represents an oil reservoir with no gas cap & no water drive: Pressure OFVF (Bo) Solution GOR GFVF (Bg) (psi) bbl/STB
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