What does a welder do on an oil rig job position?

Welders can do all sorts off tasks like repair broken equipment which comes under maintenance.

There are also underwater welders which weld underwater things such as repair and also weld pipe lines. In under Water welding it is a high skill job as you have to have a commercial diving license and train and be a good welder in arc welding MMA (Manual Metal Arc welding) with Arc welding you can also use an electrode that cuts the pipe but doesn't give a clean cut as oxy & acetylene/propane cutting this is also used underwater at times. But welding on a rig is very dangerous and have to hav lots of risk assessments in place.

Hope this helps :o)

There are two basic types of welders employed in the oil field. Pipe welders and structural welders. Most structural welders have not be certified to weld pipe but most pipe welders can also weld structural steel.

Depending on circumstances, pipe welder may also fit the pipe prior to welding it but their primary job is to weld the pipe. Because of their special skill and pay grade they seldom are employed to do anything else.