Gas-Oil Ratio Calculator

Calculate GOR from production data and estimate solution gas ratio for reservoir characterization.

Gas Production

scf/day

Oil Production

bbl/day

Reservoir Pressure

psi

Bubble Point Pressure

psi

Reservoir Temperature

°F

Oil API Gravity

°API

Tab to move between fields

Producing GOR

1,000 scf/bbl

Reservoir Fluid Type2

Solution GOR (Standing)674 scf/bbl

Above Bubble Point1

Formation Volume Factor1.38 rb/stb

Total Production (BOE)583 BOE/day

How to Use This Calculator

Enter Gas Production, Oil Production, and Reservoir Pressure.
Set Bubble Point Pressure, Reservoir Temperature, and Oil API Gravity.
Review the Producing GOR (scf/bbl) result.
Use Reservoir Fluid Type and Solution GOR (Standing) (scf/bbl) to inform your decision.
Use the chart to visualize the results and explore different scenarios by adjusting inputs.

How the result changes with Oil Production

Gas Production: Daily gas production in standard cubic feet per day.
Oil Production: Daily oil production in stock tank barrels per day.
Reservoir Pressure: Current average reservoir pressure in psi.
Bubble Point Pressure: Pressure at which dissolved gas begins to come out of solution.
Reservoir Temperature: Average reservoir temperature in degrees Fahrenheit.
Oil API Gravity: API gravity of the produced oil.

Reservoir Fluid Type: 1=Heavy Oil, 2=Black Oil, 3=Volatile Oil, 4=Gas Condensate, 5=Dry Gas
Above Bubble Point: 1 = Yes (undersaturated), 0 = No (saturated)

Identify Input Parameters
4 parameters
Gas Production = 500000, Oil Production = 500, Reservoir Pressure = 3000, Bubble Point Pressure = 2500 = 6 input(s) provided
Calculate Producing GOR
Producing GOR
1000 = 1000
Calculate Reservoir Fluid Type
Reservoir Fluid Type
2 = 2
Calculate Solution GOR
Solution GOR = rs
674 = 674