Reservoir permeability
Input(s)
\(q_{o}\): Oil Flow Rate \((\mathrm{bbl} / \mathrm{d})\)
\(B_{o}\): Oil Formation Volume Factor \((\mathrm{bbl} / \mathrm{STB})\)
\(\mu_{o}\): Oil Viscosity \((\mathrm{cP})\)
\(\mathrm{m}\): Slope of Horner Plot (psi/cycle)
h: Pay zone of Thickness ( \(\mathrm{ft}\) )
Output(s)
\(k_{o}\): Reservoir Permeability \((\mathrm{mD})\)
Formula(s)
\[
k_{o}=162.6 *\left(q_{o}\right) *\left(B_{o}\right) * \frac{\mu_{o}}{m * h}
\]
Notes: Permeability Evaluated from Horner Plot (Semi-Log Plot).
Reference(s)
Lee, J., Rollins, J. B., & Spivey, J. P. (2003). Pressure Transient Testing (Vol. 9). Richardson, Texas: Society of Petroleum Engineers, Page: 104.