Vogel’s IPR is just one-price relationships, therefore the higher sample price can be used showing which IPR
The right J to make use of from inside the Eqs. 6 and you will eight utilizes the newest streaming bottomhole pressure of your shot area. If for example the moving bottomhole pressure is actually higher than the fresh new bubblepoint stress, then the really are sense unmarried-stage flow conditions and you may J depends on
Once J is decided towards the sample standards, it is always estimate the whole inflow results bend both above and you can underneath the bubblepoint tension which have Eqs. eight and you may 8. The fresh new substance IPR is applicable if the average reservoir tension is actually higher than the bubblepoint pressure.
Three-stage move
Wiggins [9] exhibited an easy-to-fool around with IPR for a few-stage circulate, that’s comparable in form in order to Vogel’s IPR.