Synonym: 123 = LIT IPR @model
One of the most general form of IPR model:
a \, q + b \, q^2 = \Psi(p_r) - \Psi(p_{wf}) |
where
static wellbore pressure | |
laminar flow coefficient | |
turbulent flow coefficient | |
pseudo-pressure function specific to fluid type |
It needs well tests at least three different rates to assess but obviously more tests will make assessment more accurate.
|
where
surface production rate of rate | |
Absolute Open Flow (AOL) for oil | |
bottom-hole pressure (BHP) | |
drainarea formation pressure | |
bubble-point pressure |
A more general forms of IPR is provided by Vogel IPR @ model and Wiggins IPR @ model.
Inflow Performance Relation (IPR)
[ Richardson and Shaw IPR @ model ] [ Wiggins IPR @ model ]