Sorry about the blurry pics, one of my phones went screwy for a while. I've also redacted a few indentifying codes off some items but here are a few pics of IRM works we used to do all the time (sat. diving rather than with WROV's though but gives an idea). We had allot more more intersting things but I'm not sure it's right to share them.
IRM is not exciting work to most engineers (or folk offshore). I liked it immensly because nothing is the same one day to the next or week on week. But it's not long term projects allot of folk like to get on their CV. Most of it is spent trying to find leaks, doing condition surveys, replacing valves, and stopping people touching things they shouldn't plus constant mobs and de-mobs and endless change-outs of equipment and parts. The interesting and limiting thing on a DSV is the divers and managing depths and time in sat. You don't have that on a ROV boat, nor all the hassle of DP3, weather patterns.
Scale squeeze 1, 2 and 3. Mostly 20' ISO tanks with WD1000, bactericide, corrosion inhibitor, Methanol, MEG and other things plus big 1,000Barg triplex pumps, manifolds, valves, dosing pumps.
Concrete matresses -run of the mill: Lots and lots of them, hundreds and hundreds to put down on new lines or just to add to existing ones.
New flexible jumper pissibly 8 or 10" bore. Plus associated drdgers, DMA's (clump weights), mattresses and bulk bags full of sand to shore things up.
A 100Te AHC crane is probably a waste on an IRM boat but they can probably work deep, they'll be good for light construction also -she'll maybe spend at least 75% of the time lifting less than 25Te if not 10Te just on the whip line if they're working shallow. We did a few lifts above 50Te but not many. And if you're picking up from the sea bed itself 100Te dissapears into nothing (I forget the de-rating).
I don't know where the "survey" description comes from frfor her as the owners don't list her as that and they don't list typical survey kit -I think it's a mis-labelling in marinetraffic. I would like to have spent some time on a more modern WROV boat though.
Hope the attached pics give some inspiration.
Rich