A phenomenological description of the transient single-phase pore velocity period using the resistance force-velocity relationship

A new approach to determine the transient period towards steady state pore flow velocity for fluids propagating through porous media under constant pressure condition is presented. The expression relates mean rather than fluid conventional considered when characterizing behavior in media. It based on general, resistance force-velocity relationship, and therefore analogous used calculating periods objects falling resisting air increase electric currents respective values. caused by inertia forces characterized a relaxation time comprising density viscosity together with medium properties as porosity absolute permeability. Results show that increases decreasing increasing permeability of medium. negligibly small typical fluid/medium property values subterrain sandstone reservoirs. Significant periods, occasionally observed during laboratory injection tests, are other time-dependent processes not captured presented herein, e.g., fines migration or electrokinetic phenomena. Cited as: Standnes, D. C. phenomenological description single-phase using relationship. Advances Geo-Energy Research, 2022, 6(2): 104-110. https://doi.org/10.46690/ager.2022.02.03