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.