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In practice the constant rate production can only be maintained for wells with BHP
being being above critical value
at which pump is operational:
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and the actual liquid production rate starts declining linearly with formation pressure::
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q_L(t) = J \cdot ( p_e(t) - p_{wf,c} ) |
In case formation pressure in producer receives a support and gets high enough to make
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estimation equal to original pump setting
then
liquid production rate gets back to
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.
See Also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Well Testing (WT) / Flowrate Testing / Flowrate
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[ Surface flowrates ] [ Oil surface flowrate ] [ Gas surface flowrate ] [ Water surface flowrate ]
[ Sandface flowrates ] [ Oil sandface flowrate ] [ Gas sandface flowrate ] [ Water sandface flowrate ] [ Total sandface flowrate ]Constant pressure production: pwf = const ]
