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| LaTeX Math Block |
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J_s = \frac{2 \pi \sigma}{ \ln \frac{r_e}{r_w} + \epsilon+ S} |
where
| LaTeX Math Inline |
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| body | \sigma = \Big \langle \frac{k} {\mu} \Big \rangle \, h = k \, h\, \Big[ \frac{k_{rw}}{\mu_w} + \frac{k_{ro}}{\mu_o} \Big] |
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– water or water-oil transmissbility above bubble point (see also | LaTeX Math Block Reference |
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| anchor | Perrine2phase_alpha |
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| page | Linear Perrine multi-phase diffusion model |
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),
for steady-state SS flow and for pseudo-steady state PSS flow.
For gas wells, condensate producers, light-oil producers, and oil producers below bubble point
the fluid compressibility is high, formation flow in well vicinity becomes non-linear (deviating from Darcy) and free gas slippage effects inflict the downward trend on
WFP – Well Flow Performance plot (Fig. 2).
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