Life boat job?

Frankly, I am confused…life boats are the ones danggling on the shipsides or stern for the reserved ride when the big one is in trouble or something…

Not sure what is called the life boat in offshore industry…
Is it kind of crew boat ? Please tip me…

capitanahn, I think you are referring to a liftboat or jackup boat, a self-propelled pretty much barge or scow hull with usually three tall jacking-legs, port and starboard and aft, that jack the barge out of the water and to the working height of an oil jacket or platform. Used primarily to do construction or maintenance and messaging of the oil well or platform.

Thanks Roversea, I guess it was a liftboat…