Poisson's ratio (seismic arrival time method)

Input(s)

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

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

Output(s)

v: Poisson's Ratio (dimensionless)

Formula(s)

$$ v=\frac{\left(V_{p}^{2}\right)-2 *\left(V_{s}^{2}\right)}{2 *\left(\left(V_{p}^{2}\right)-\left(V_{s}^{2}\right)\right)} $$

Reference(s)

Mark D. Zoback., Reservoir Geomechanics, Cambridge University Express, UK, Page: 64.