Petroleum & Drilling

Intermediate

Gas-Oil Ratio

Volume of gas produced per barrel of oil.

Formula

GOR = \frac{V_{gas}}{V_{oil}}

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Variables

GORGas-oil ratio (scf/STB)

V_{gas}Gas volume (scf)

V_{oil}Oil volume (STB)

Example

500,000 scf / 1000 STB: GOR = 500

Did You Know?

A rising gas-oil ratio can warn engineers that reservoir pressure is dropping.

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