In Reservoir Tab, cell M58. The initial formula is μ=K1eX ρY. I check the paper from Lee et al. (1966). This formula will become unbounded if the natural gas density is > 1 g/m3. When fluid has an extremely high viscosity, it is unlikely to flow. So the bottom flow pressure always indicates ERROR which causes the endless loop.
In Reservoir Tab, cell M58. The initial formula is μ=K1eX ρY. I check the paper from Lee et al. (1966). This formula will become unbounded if the natural gas density is > 1 g/m3. When fluid has an extremely high viscosity, it is unlikely to flow. So the bottom flow pressure always indicates ERROR which causes the endless loop.