angelwings,
Dolphins tend to be so friendly to human, and they can feel if you are at risk in the water, they will help you for sure.
There is a very well known story happened in another oilfield platform, very close to mine, when one of the staff, fell down to the sea because of the strong wind, and he was missing for two days, until the Dolphins guided one of the boat captains to him, and they found him surrounded by dolphins to protect him from sharks.

:D