Page 417 - Standard Handbook Petroleum Natural Gas Engineering VOLUME2

Properties of Hydrocarbon Mixtures 383

The samples of separator gas and separator liquid were analyzed and the
results are reported in Table 6-4, sharing both composition of each sample and
the computed analysis of the well stream based on the GOR in the primary
separator. The separator liquid (oil) production was calculated from the measured
second-stage production by applying the determined shrinkage factor.

Table 6-4
Hydrocarbon Analysis of Separator Products
and Calculated Wellstream [ll]
Separator
Liquid Separator Gas Well Stream

Llq. GPM 8 GPM 8
Component Mol % Vol. % Mol % 15.025 PSlA Mol % 15.025 PSlA
Carbon Dioxide 0.41 0.19 2.18 1.84
Nitrogen 0.00 0.00 0.16 0.13
Methane 22.36 10.16 82.91 71.30
Ethane 8.54 6.12 8.22 2.243 8.28 2.259
Propane 10.28 7.58 3.82 1.073 5.06 1.421
Iso-Butane 5.69 4.99 1.11 0.372 1.99 0.664
N-Butane 5.11 4.32 0.80 0.256 1.63 0.523
Iso-Pentane 4.84 4.75 0.30 0.1 13 1.17 0.437
N-Pentane 2.01 1.95 0.17 0.064 0.52 0.193
Hexanes 8.16 8.75 0.22 0.091 1.74 0.731
Heptanes Plus 32.60 51.19 0.11 0.053 6.34 3.907
Total 100.00 100.00 100.00 4.265 100.00 10.135
Calculated Specific Gravity (Air = 1.00) = 0.6999 Separator Gas 1.0853 Well Stream
Sep. Gas Heat of Combustion (BTU/Cu.Ft. 8 15.025 PSlA & = 1206.8 Real
60 Degrees F) Dry
Sep. Gas Heat of Combustion (BTU/Cu.Ft. 8 15.025 PSlA & = 1185.7 Water Sat.
60 Degrees F) Wet
Sep. Gas Compressibility (8 1 ATM. & 60 Degrees F) Z = 0.9968

Properties of Heptanes Plus: Propertles of Separator Llquid:
Specific Gravity = 0.7976 0.6562 63 60160 Degrees F
Molecular Weight = 152 78.7
Cu. Ft ./Gal. = 16.24 25.81 63 15.025 PSlA & 60 Degrees F

Propertles of Stock Tank Liquid:
Gravity = 56.8 Degrees API 63 60°F
Basis of Recomblnatlon:
Separator Liquid Per MMSCF Separator Gas = 219.05 BBLS.