Volumetric flowrate of mostly degasified oil normally measured at separator or at processing plant.

Usually produced from subsurface oil phase and gas phase.

It usually requires additional processing before taking commercial form of the Crude Oil.

For volatile oil fluid model the oil surface flowrate  is related to oil sandface flowrate  and gas sandface flowrate  as (see derivation):

q_O =(1-R_v \, R_s)^{-1} \left( \frac{q_o}{B_o} +\frac{R_v \, q_g}{B_g} \right) 

where

It relates to Surface Liquid production rate   and Total sandface flowrate  as:

q_O = (1-Y_W) \, q_L

q_L = \frac{(1-Y_W) \, q_t}{B_w Y_W + \left[ (B_o - R_s B_g) + (B_g - R_v B_o) \, Y_G \right] \cdot (1-Y_W)}  

It simplifies for the Black Oil model () to:

q_O = \frac{q_o}{B_o} 

See Also

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT) / Flowrate Testing / Flowrate

[ Well & Reservoir Surveillance ]

[ Sandface flowrates ] [ Oil sandface flowrate ] [ Gas sandface flowrate ] [ Water sandface flowrate ]

[ Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ]

[ Crude Oil ]