I don't know the total number of workers offshore but in the longterm wouldn't it be useful if they could have wifi access so that they could use their laptops/iPads for personal communications, maybe Skyping their family etc?
I can't speak for all installations but Transocean drilling rigs do have wi-fi available on board for the personal use of the workers.
On my rig it is, however, a very slow connection at present, really only useful for texting and Faceaching.....
