Solution Gas Specific Gravity (ɣg)

The specific gravity of the solution gas (ɣg) is described by the weighted average of the separated gas specific gravities from each separator.

This weighted-average approach is based on the separator gas-oil ratio (GOR).

Reference: Reservoir Engineering Handbook, Tarek Ahmed

Correlations

  • Mass Balance

Input Parameters

NameInput Value - UnitConverted ValueValidity CheckLink to Calculation Page
1st Stage separator GOR

scf/STB

1st Stage separator ɣg

SG

2nd Stage separator GOR

scf/STB

In case of three separation stages (including stock tank)
2nd Stage separator ɣg

SG

In case of three separation stages (including stock tank)
3rd Stage separator GOR

scf/STB

In case of four separation stages (including stock tank)
3rd Stage separator ɣg

SG

In case of four separation stages (including stock tank)
GOR @ Stock tank

scf/STB

Last separation stage
ɣg @ Stock tank

SG

Last separation stage
CALCULATE

Results

CorrelationCalculated ValueWarningsRemarks
Mass BalanceSG