Gas migration velocity

Input(s)

$\Delta p_{c s}$: Pressure $(\mathrm{psi})$

$g_{m}$: Depth $(\mathrm{ft})$

$\Delta t$: Time over which the Rise in Casing Pressure Occurs (h)

Output(s)

$v_{s l}$: Gas Migration Velocity $(\mathrm{ft} / \mathrm{h})$

Formula(s)

$$ v_{s l}=\Delta p_{c s} / g_{m} \Delta t $$

Reference(s)

Watson, D., Brittenham, T., \& Moore, P. L. (2003). Advanced Well Control (Vol. 10). Society of Petroleum Engineers, Page: 12.