Just received this e-mail describing a Major incident with a North Sea FPSO (Floating Production Storage and Offloading facility - basically a fixed
ship with top-sides processing plant). I understand it occurred 9 days ago, but I just received the mail - so here goes:
Subject: Extract from E mail ref Gryphon
still under partial emergency status.
"Lost heading last Friday and went broadside into bad weather.
Then lost both turbines followed by all power.
We did a few 21 degree rolls and snapped four anchor chains.
Drifted 180 metres off station and ripped all of the Gas Lift Risers clean out of the bottom of the ship. You should see the mangled pipework in the
Gas cloud detected but quickly cleared, probably because the 11 gas lift risers were disappearing down the I-tube to the sea bed..!!
At this point we had contacted the authorities and were down manning by 70 personnel to 40.
RAF Sea King, the Coastguard helicopter and two Scotia emergency helicopters lifted all safely to the Beryl platforms.
Also had an AWAC overhead checking for oil spills etc. Fortunately not spilt a drop.
We have since deployed four tugs to hold us stable, initially by pushing us round I believe, but now we have connected two of them FWD and Aft for
emergency heading control. The tugs are monsters, supposed to be the biggest in North Sea waters.
Also we have three anchor handling ships here along with two DSV's. A fair selection of Marine hardware turning up now.
ROV's in the water have fed back that we have wrecked the sub sea cluster. Chains wrapped around risers, riser bases ripped clean off the sea bed,
some turned upside down mangling some of the flow lines, we managed to move one of the riser bases 70 metres..!!
The anchors are in all kinds of incorrect locations, two of the chains have actually crossed over!, one is wrapped around the riser arch, with as I
say, four of them with snapped chains. The thing must have been doing pirouettes..!!
Yet to finish checking the risers, but apart from all of the 11 gas lift risers being ripped clean out we fear we have damaged others.
We have also sustained damage to the chain fairleads under the turret which is a very difficult place to put ROV's and divers so sounds like Dry
Presently stable, with full power and DP control, but should the weather pick up we could be in trouble again, hopefully the tugs will hold us.
Only 40 of us on board, me being
Not feeling brave about that, but feeling it's time I changed my f**king career..!!" continued.........
edit on 12-2-2011 by Rigel Kent because: to add date of occurrence