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Inflow Performance Skin A well is drilled in a clean sandstone formation. The DLL and FDC / CNL logs indicted a productive horizon from 5

Inflow Performance Skin
A well is drilled in a clean sandstone formation. The DLL and FDC/CNL logs indicted a productive horizon from 5080-5092', TVD. A sidewall core sample indicates an average permeability of 100md. in this horizon and the PVT analysis confirms B@ of 1.1rsvSTB. Oil viscosity is 1.3cp.
(a) Assuming the drainage radius is 2980ft and the wellbore radius is 0.328ft, what is the steady state productivity index (PI or J) for this well?
(b) Draw the inflow performance curve for this well if the initial reservoir pressure is 3100 psi.
(c) If a subsequent well test confirms an in-situ skin of +8, what is the PI for the well taking this skin into account?
(d) Draw the inflow performance curve for this well taking the positive skin into account.
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