Gas/Oil Flow through Fractured Reservoirs using Darcian Approximation: Is it too simplified?

Is it fine to ignore the inertial effect that becomes increasingly prominent and non-negligible with enhanced Reynolds number within the high-permeable fracture?

Is it also fine to include the viscous effect that becomes negligible and insignificant in the absence of a minimum threshold pressure-gradient in a low–permeable rock-matrix?

With near non-Darcy behavior in both high-permeable fracture and low-permeable rock-matrix, will it be really feasible to ensure the continuity of fluid mass fluxes at the fracture-matrix interface using Darcian approach?

With the onset of inertial effects in high-permeable fractures, which will remain more reasonable?

Forchheimer (the pressure gradient is a second-order polynomial function of specific discharge);

OR

Izbash (the pressure gradient is an empirical power-law function of specific discharge)?

OR

Both Forchheimer and Izbash’s law remain equally acceptable to characterize oil/gas flow through fractured reservoirs?