@wikipedia


Ratio of  Cumulative gas production   to Cumulative oil production :

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:

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) ]