Ratio of Cumulative gas production Q^{\uparrow}_G to Cumulative oil production Q^{\uparrow}_O:
| (1) | ΣY_G = {\rm ΣGOR}=\frac{Q^{\uparrow}_G}{Q^{\uparrow}_O} |
The simplest way to model the ΣGOR in a given well is the GOR Fractional Flow @model:
| (2) | ΣY_G = {\rm ΣGOR}= 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) ]