Stress perturbation (Segall and Fitzgerald)

Input(s)

$v$: Poisson (dimensionless)

$\mathrm{H}$: Height of Reservoir $(\mathrm{ft})$

R: Half the Lateral Extent (ft)

$\alpha$: Constant of Stress Propagation (dimensionless)

Output(s)

M: Stress Perturbation (dimensionless)

Formula(s)

$$ \mathrm{M}=\alpha *\left(\frac{(1-2 * \mathrm{v}) * \pi * \mathrm{H}}{(1-\mathrm{v}) * 4 * 2 * \mathrm{R}}\right) $$

Reference(s)

Mark D. Zoback, Reservoir Geomechanics. Cambridge University Press. Cambridge, UK, Page: 112.