Volumetric flowrate of water measured at SPE Standard Conditions (STP).
Usually produced from water phase only.
For volatile oil fluid model the water surface flowrate is related to water sandface flowrate
as (see derivation):
q_W = \frac{q_w}{B_w} |
where
| formation volume factors between separator and sandface pressure/temperature conditions |
It relates to Liquid production rate at surface as:
q_W = Y_W \, q_L |
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