# hw7key - SOLUTION KEY HOMEWORK 7 8-3 Specific gravity o = o...

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SOLUTION KEY HOMEWORK# 7 8-3. Specific gravity , o o w ρ γ = 46.4 / 62.37 / o lb cuft lb cuft = = 0.744 8-5. 141.5 131.5 o API °= So, 141.5 35.2 131.5 o γ o = 0.84883 density, oo w γρ = = 52.41x(5.615 cu ft/ bbl ) lb/ bbl = 297.25 lb/bbl 297.25 pounds in a barrel of oil . 8-7. Reservoir volume, V res = 227.0 cc res o scf V B V = 227.0 / 167.4 rescc cc = = 1.36 res bbl/ STB 6 (0.537 0.059) ) (167.4 ) (6.2898 10 / s scf R cc x x bbl cc + = = 566.05 scf/ STB 8-9. V res = 86.3 bbl/ day V STB = 57.9 bbl/ STB ρ o = 44.2 ºAPI 86.3 57.9 o resbbl B STB =

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= 1.49 res bbl/ STB V g,scf1 = 43,150 scf/day V g,scf2 = 240 scf/day (43,150 7240) 57.9 s scf R STB + = = 870.3 scf/ STB R s applies only at the bubble point. . 8-10. Pressure, psig Oil formation volume gas-oil factor Bo res bbl/STB Solution gas- oil ration, Rs scf/STB Gas formation volume factor Bg scf/STB 5000 1.498 941 4500 1.507 941 4000 1.517 941 3500 1.527 941 3400 1.53 941 3300 1.532 941 3200 1.534 941 3100 1.537 941 3054 1.538 941 0.000866 2700 1.484 819 0.000974 2400 1.441 732 0.00109 2100 1.401 646 0.001252 1800 1.361 562 0.001475 1500 1.323 481 0.001795 1200 1.287 400 0.002285 900 1.252 321 0.003108 600 1.215

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## This note was uploaded on 09/14/2009 for the course PGE 312 taught by Professor Peters during the Spring '08 term at University of Texas.

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hw7key - SOLUTION KEY HOMEWORK 7 8-3 Specific gravity o = o...

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