Minimum compression at vertical wellbore
Input(s)
\(S_{\text {hmin }}\): Minimum Horizontal Stress (psi)
\(S_{\text {hmax }}\): Maximum Horizontal Stress (psi)
\(P_{o}\): Pore Pressure \((\mathrm{psi})\)
P: Pressure Drawdown (psi)
\(\sigma_{t}\): Thermal Stress (psi)
Output(s)
\(\sigma_{\text {minaxial }}\): Minimum Axial Stress (psi)
Formula(s)
\[
\sigma_{\text {minaxial }}=3 * \mathrm{~S}_{\mathrm{h} \min }-\mathrm{S}_{\mathrm{h} \max }-2 * \mathrm{P}_{\mathrm{o}}-\mathrm{P}-\sigma_{\mathrm{t}}
\]
Reference(s)
Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, Page: 174.