Radius of investigation
Input(s)
k: Permeability \((\mathrm{mD})\)
\(\mathrm{t}\): Time (h)
\(\emptyset\): Porosity (fraction)
\(\mu\): Viscosity \((\mathrm{cP})\)
\(c_{t}\): Total Compressibility \((1 / \mathrm{psi})\)
Output(s)
\(r_{i}\): Radius of Investigation at the end of Injection Time (ft)
Formula(s)
\[
r_{i}=0.0359 *\left(\left(\frac{k * t}{\phi * \mu * c_{t}}\right)^{0.5}\right)
\]
Reference(s)
Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 1, Page: 134