How can I work in an offshore job or oil rig.

by Leonardo S. Antonio
(Blk 8 Lot 8 St Andrew st. P4,Sto Nino Villge ,Tunasan Muntin lupa City,Phillippines)

I heared about oil rig jobs and I am so interested to work there .The problem How to get in there.Do I need to be train just to get in?For 18 years of work on board as chief cook ,I wish to change my work place.