[Munch's Master]

I think the volcanic gas theory for the native wells is the best-the gas could easily propel Abe through the air if focused enough, but if it was from Oddworld's core it'd probably scald/burn/whatever overly hot air does to you Abe to death. Hmmmmm. The industrial wells I'm betting are some sort of suction or fan system. as for the doors, they probably lead to tunnels which interlink- when there's no passage behind a downward shaft with some sort of ladder/rungs leads down to a tunnel.