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Well productivity index

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how does Petrasim deal with one productivity index (PI), if the well intersects cells with different thicknesses (dz) and different permeabilities?

My assumption is that I have to calculate PI for each intersecting cell and then take an appropriate average?

Thanks for other thoughts on that.


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The program does not seem to adjust the PI value based on the dz or varying k values. It does output the HG value, which is a cell thickness value. I believe that when calculating the PI for multi-cell wells, the dz would be the entire length of the well. I don't know what you would do in a situation with multiple k values. I would suggest that you submit this to the LBNL TOUGH2 forum, as the authors are better qualified to answer this question.



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