GLOSSARY

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where

r

LaTeX Math Inline
bodyq

 

depending on application may mean a total sandface flowrate (

LaTeX Math Inline
bodyq_t
) or a product of surface flowrate and FVF (
LaTeX Math Inline
bodyq = q_{\rm srf} B
)

LaTeX Math Inline
bodyp_{wf}

bottomhole pressure  

LaTeX Math Inline
bodyp_{\rm frm}

depending on application may mean a drain-boundary formation pressure (

LaTeX Math Inline
bodyp_

e
) or drain-area formation pressure (
LaTeX Math Inline
bodyp_r
)

LaTeX Math Inline
body\sigma

formation transmissibility

LaTeX Math Inline
bodyr_w

wellbore radius (by drill bit)

LaTeX Math Inline
bodyr_e

distance to a boundary

LaTeX Math Inline
bodyS

total skin

LaTeX Math Inline
body\epsilon

a model parameter depending on Productivity Index definitions and boundary type (

LaTeX Math Inline
body\epsilon =\{ 0, \, 0.5, \, 0.75 \}
, see table below)

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