Volumetric flowrate of mostly degasified oil normally measured at SPE Standard Conditions (STP).
Usually produced from subsurface oil phase and gas phase.
It usually requires additional processing before taking commercial form of the Crude Oil.
For MBO fluid @model the oil surface flowrate is related to oil sandface flowrate and gas sandface flowrate as below (see Derivation):
q_O = \frac{q_o}{B_o} + R_v \,\frac{q_g}{B_g} |
where
oil formation volume factor between separator and sandface pressure/temperature conditions | |
Vaporized Oil Ratio at sandface pressure/temperature conditions |
The oil surface flowrate relates to Surface Liquid production rate as:
q_O = (1-Y_W) \cdot q_L |
The oil surface flowrate relates to Total sandface flowrate as:
q_O = \frac{1-Y_W}{B_w Y_W + \left[ (B_o - R_s B_g) + (B_g - R_v B_o) \, Y_G \right] \cdot (1-Y_W)} \cdot q_t |
It simplifies for the Black Oil model () to:
q_O = \frac{q_o}{B_o} =(1-Y_W) \cdot q_L = \frac{1-Y_W}{B_w Y_W + \left[ (B_o - R_s B_g) + B_g \, Y_G \right] \cdot (1-Y_W)} \cdot q_t |
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT) / Flowrate Testing / Flowrate
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