RE: O/T The Summer of 201820 Jul 2018 04:39
Hecate,
Wellwell is correct when he says
"AK isn’t your man for Subsea by his own admission. There are some operators who favour ROV’s for everything and others that still to this day prefer sat divers. I can’t comment on what method HUR/TFMC are using. It’s unlikely anything will be ‘flogged’ up other than temporary pipe work. Bolt tensioning equipment is the norm these days."
And no, I'm not an 'expert' on subsea installation operations of this nature.
My initial feeling was that this would probably be ROV work, but I've just looked at the Deep Explorer's specs, and it's fitted with a very comprehensive 24-man (yes, 24 man!) diving spread. Which I have to admit surprised me no end, because my understanding that the major preference these days was for ROV's. An ROV can do simple things like bolt-torquing just as well as a diver, possibly quicker and cheaper, with the bottom line being if you lose an ROV for whatever reason it's just an expensive machine and can be easily replaced. Lose a diver and it costs a lot more once you've paid all the legal fees. That sounds callous and blunt, but it's the bottom-line thinking about that thing called 'safety', and not just in the oil industry.
Heck (an anecdote) I was on a job with a jackup a few years ago offshore Tunisia, and we were in just 35 foot water depth. No need for saturation diving at all. Seabed observation and spud can inspection could have been done by someone wearing scoobydoo, and they could have stayed down there for half a day if required. But no, we had an ROV!
So like Wellwell, although I'd suspect that most of the SURF installation will be done with ROV's, I wouldn't put money on it.