Hi,
I'm currently working as a quality eng. with a company that does o&g pipeline welding.

I'm thinking of getting some certificates soon and was wondering which certificates would give me the most bang for my buck?

and what field should i be concentrating on to move up in the o&g industry? i understand there are many fields in o&g but i would like to know what each of you personally thinks is the best and later i will judge for myself which is most suitable for me.

all c&c welcome. thanks.