The most accurate prediction of Productivity Index is based on numerical reservoir flow simulations.
Apart from this but there are numerous proxy models covering popular categories of reservoir flow regimes, dynamic reservoir properties and well-reservoir contacts.
One of the most popular proxy model is Dupuit PI @model
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J = \frac{2 \pi \sigma}{ \ln \frac{r_e}{r_w} + \epsilon+ S} |
where
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which covers a very wide range of stabilised reservoir flow.
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See Also
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Petroleum Industry / Upstream / Production / Subsurface Production / Subsurface E&P Disciplines / Production Technology / Productivity Index
[ Definition specifics on formation pressure and productivity index ] [ Sandface Productivity Index ] [ Surface Productivity Index ] [ Specific Productivity Index ] [ Injectivity Index ] [ Drainarea Productivity Index (Jr)Dupuit PI @model ]