[Petter]

Many people take the safety course on private basis (Ca 25 000 Swedish Kr)
Its a 1 week course and give you the certificate to work offshore.
Its included the boat dropp,helicopter dropp/overturn into water,fire training,
first aid and the theory you need.
Afther that you need a health certificate that shows that you can work offshore.(General god health)

You should be able to get support from employment office to cover the cost
and then search for jobs by contakting the companys or see what kind of extra education you need.

If you get into a apprentice Job the company normally give you that kind of
education as a part of the programme.