Volumetric flowrate of the dry gas measured at separator
Usually produced from subsurface gas phase and oil phase
For volatile oil fluid model the gas surface flowrate is related to gas sandface flowrate
and oil sandface flowrate
as:
q_G =(1-R_v \, R_s)^{-1} \left( \frac{q_g}{B_g} +\frac{R_s \, q_o}{B_o} \right) |
where
| oil formation volume factor between separator and sandface pressure/temperature conditions | |
| Solution GOR at sandface pressure/temperature conditions |
It simplifies for the Black Oil model to:
q_G = \frac{q_g}{B_g} |
Non-linear multi-phase diffusion derivation @model