Missed this one. Right now I believe it will be tough to get a job offshore without having the required safety training etc. but once you are in employment it is usually covered by the employer. This is generally the rule in all developed countries and serious employers in the Offshore industry I believe.
Since you referred to Norwegians; If you are unemployed here in Norway there are possibilities to get government grants to better yourself to improve your possibility to find a job. Not always 100%, but most will draw generous unemployment benefits and be able to afford part/all of the cost.