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Volume of fluid passing through a certain area A per unit time:

(1) q_A = \frac{d V_A}{ d t}

In Petroleum Industry this term depends on context and may mean pipeline flowrate or wellbore flowrate which can be measured at separator (and called Surface flowrate) or downhole (and called Sandface flowrate).

Volumetric flowrate q_A is related to mass flowrate  \dot m_A and fluid density \rho as:

(2) \dot m_A = \rho \cdot q_A

See Also

Natural Science / Physics / Mechanics / Continuum mechanics / Fluid Mechanics

Mass Flowrate ]

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

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 ]

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