Ratio of gas production rate q^{\uparrow}_G to oil production rate q^{\uparrow}_O:
| (1) | Y_G={\rm GOR}=\frac{q^{\uparrow}_G}{q^{\uparrow}_O} |
The simplest way to model the GOR in a given well is the GOR Fractional Flow @model:
| (2) | Y_G = {\rm GOR}= R_s + \frac{M_{rg}}{M_{ro}} \cdot \frac{B_o}{B_g} |
which provides a good estimate when the drawdown is much higher than delta pressure from gravity and capillary effects.
See Also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT) / Flowrate Testing / Flowrate
[ Well & Reservoir Surveillance ]
[ Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ]
[ GOR Fractional Flow @model ] [ Production Water Cut (Yw) ]