Its an interesting life for sure. Also, unfortunately, the work is starting to wrap up on this project at least, so there's no guarantee even if you do do the courses i'm afraid, pretty much every industry is like that now though.
But yeah (for the tradies), 10 hour days, work 20 days straight, travel, 6 days off, travel, work 20 days straight, repeat. Stay in camps literally in the middle of nowhere, but at least the rooms are decent, food is buffet, gym on site and the like. But yeah it gets lonely, you do get days off during the week to make up for it but most people are working on those days, which is good for going on drives or getting stuff done but not for keeping in touch with folks really. Honestly don't know how people with kids do it, but the financial rewards must be a good part of it.