Dimensionless pressure (linear flow/constant rate production/hydraulicallyfractured wells)
Input(s)
\(p_{i}\): Initial Reservoir Pressure (psi)
B: Formation Volume Factor \((\mathrm{RB} / \mathrm{STB})\)
\(\mu\): Oil Viscosity \((\mathrm{cP})\)
\(\mathrm{k}\): Permeability \((\mathrm{mD})\)
\(\mathrm{h}\): Reservoir Thickness (ft)
q: Flow Rate \((\mathrm{STB} /\) day \()\)
p: Pressure (psi)
Output(s)
\(p_{d}\): Dimensionless Pressure (dimensionless)
Formula(s)
\[
p_{d}=\frac{k * h}{141.2 * q * B * \mu} *\left(p_{i}-p\right)
\]
Reference(s)
Lee, J., Rollins, J. B., & Spivey, J. P. (2003). Pressure Transient Testing (Vol. 9). Richardson, Texas: Society of Petroleum Engineers, Page: 10.