GOR Calculator
Calculate gas-oil ratio, condensate-gas ratio, and classify reservoir fluid type from production data. Convert between GOR and CGR instantly.
From Production Rates
Results
GOR
--
scf/STB
CGR
--
STB/MMscf
GOR (Mscf/bbl)
--
Mscf/STB
Producing WOR
--
STB/STB
GOR / CGR Converter
Equivalent CGR
--
STB/MMscf
Reservoir fluid classification ranges
Black Oil: GOR < 2,000 scf/STB. API 25-45. Primary product is oil.
Volatile Oil: GOR 2,000-3,300 scf/STB. API 40-50. Shrinkage significant.
Gas Condensate (retrograde): GOR 3,300-100,000 scf/STB. Liquid drops out below dewpoint.
Wet Gas: GOR 100,000-150,000 scf/STB. Surface condensate produced but no retrograde.
Dry Gas: GOR > 150,000 scf/STB. Negligible liquid content.
CGR = 1,000,000 / GOR (STB/MMscf when GOR is in scf/STB)
Related Tool
GOR Diagnostic Tool (PRO)
Plot GOR trends over time and diagnose reservoir behavior.
Open PRO →Rising GOR or changing fluid behavior? We can help with PVT modeling and reservoir surveillance.
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