One of the two branches of Well Testing with the focus on measuring the well flowrate, which can be done in different ways:
See Also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT)
[ Well & Reservoir Surveillance ] [ Flowrate ]
[ Sandface flowrates ] [ Oil sandface flowrate ] [ Gas sandface flowrate ] [ Water sandface flowrate ]
[ Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ]