Page 171 - PVT Property Correlations

Volatile Oils Chapter | 6 145

Stage Pressure, T, GOR, B o , Gas Stock- Oil B o at
psia F scf/ rbbl/ Sp. Tank Oil Density at Saturation
STB STB Gr. Density, Saturation Pressure,
lbm/cu.ft. Pressure, rbbl/STB
lbm/cu.ft.
Separator Test 1
1 100.0 75 3500 1.10 0.88 31.96 2.79
2 14.7 60 90 1.00 1.27 48.95
Total 3590
Separator Test 2
1 250.0 167 2800 1.13 0.85 31.96 2.62
2 14.7 140 289 1.00 1.21 48.82
Total 3089
Separator Test 3
1 400.0 167 2550 1.33 0.81 31.90 2.58
2 14.7 140 380 1.00 1.19 48.81
Total 2930
6.2 Calculate the four MBO PVT properties for the volatile oil given in the
above problem. Compare the calculated properties from the three sepa-

rator initial solution GOR. Assume that reservoir temperature is 320 F.