Yield strength (Bingham plastic model)

Input(s)

K\mathrm{K}: Bulk Modulus (psi)

G: Shear Modulus (psi)

ρ\rho: Density (ppg)(\mathrm{ppg})

Output(s)

VpV_{p}: Velocity of Compressional Waves (ft/s)(\mathrm{ft} / \mathrm{s})

VsV_{s}: Shear Waves (ft/s)(\mathrm{ft} / \mathrm{s})

Formula(s)

Vp=(K+4G3ρ)0.5 Vs=(Gρ)0.5\begin{gathered} \mathrm{V}_{\mathrm{p}}=\left(\frac{\mathrm{K}+\frac{4 * \mathrm{G}}{3}}{\rho}\right)^{0.5} \\ \mathrm{~V}_{\mathrm{s}}=\left(\frac{\mathrm{G}}{\rho}\right)^{0.5} \end{gathered}

Reference(s)

Mark D. Zoback, Reservoir Geomechanics, Cambridge University Press, UK, page 63.

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