Calculating Skin isn't that easy. I simple definition for skin is "fudge" factor to make well performance act like the theoretical model. Skin is either calculated from production analysis, build up analysis, or in reservoir simulation. It requires some type of well performance data...
In dealing with many of the US Rocky Mountain Fields, some simple questions come to mind.
- How does production data map out (are there bulls eyes?)
- How does well test analysis compare to matrix permeabilities?
- Does the production data support formation linear flow?
Mark
