Umbilical severed at 80 meters in North Sea

[Bombay High]

Akimbo,
I have the post enquiry incident report from Bibby. Its fantastic, and represent a great new trend in the industry of transparent sharing of info. Its in Power Point. I dont know how to upload it. Should I email it to you?

---------- Post Merged at 05:43 PM ---------- Previous Post was at 05:41 PM ----------

BTW - I also have Technips presentation on the new rebreather - again in Power Point

 

[DCBC]

Likely it was a Divex SLS Mk IV. This is commonly used in Sat Diving. It provides 13 1/2 mins. of warm gas/hot water at 400M, or 26 mins. at 150M and is used with the UltraJewel 601 Reclaim Helmet. It obviously was enough to save his life...

For those interested, it's a semi-closed circuit rebreather.

28 minutes is a really long time below 250'! Any idea what bailout system was used? Hard to imagine being that cold and living — hot water suits fit like coveralls for someone twice your size so you may as well be naked when the water stops.

 

[Searcaigh]

Very nice better than the 15L steel with 16% HeO2 bail out bottle that I used back in the 80s

 

[DCBC]

Or doing the dive with a 1944 Morris Mark V Hat and Dress that I used in the early 70's when I was in the Navy... Man things have changed!

Very nice better than the 15L steel with 16% HeO2 bail out bottle that I used back in the 80s

 

[Bombay High]

Wayne,
This one is different. Its going to change a lot of things. They will do away with the hot water suit. The Umbilical will become thinner. The heat will be routed through the rebreather, so that you get heat supplied to the suit, you get warm gas, and supplies will last an hour in the event of Umbilical separation. You also do not need the Jewel on your hat anymore. The reclaim unit will be on your back. Sounds fantastic. I cant figure if a Power Point file can be uploaded.

---------- Post Merged at 08:48 PM ---------- Previous Post was at 08:43 PM ----------

[COLOR=rgb(0.000000%, 0.000000%, 60.000000%)]HeaderandFooter(View)[/COLOR]

[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]u [/COLOR]Technip / Statoil PDE Development
[COLOR=rgb(0.000000%, 0.000000%, 60.000000%)]​ [/COLOR]Goals obtained for Rebreather
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]The PDE consists of following components
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]PassiveRebreatherdevelopedwitha“reclaimefficiency”of>95%[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]ElectronicallymanagedtoEN61508standardforSIL4
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]State-of-the-futuremonitoringandcommunicationsystem
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]MUXconnectiontosurfacewithallelectronicread-out
[COLOR=rgb(0.000000%, 0.000000%, 60.000000%)]​ [/COLOR]Goals obtained umbilical
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]Single composite umbilical with 1” diameter
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]Gas,oxygen,fibreopticsandtwistedpairs[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]FunctionsasSafetylinewith350kg.SWL
[COLOR=rgb(0.000000%, 0.000000%, 60.000000%)]​ [/COLOR]Goals obtained suit
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]Actively heated Dry Suit
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]VikingSuit
[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]ActivelyheatedundersuitcontrolledthroughtherebreatherMUX

Cost efficiency
[COLOR=rgb(0.000000%, 0.000000%, 60.000000%)]​ [/COLOR]The system removes equipment

• [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]With the system, no need for diver reclaim
  [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]Simplificationofthebell
  [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]Simplificationofdivecontrol
  
• [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]With the system, smaller umbilicals[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]Simplificationofthebells
  [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]Simplificationofsliprings
  
• [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]With the system, Reduced Hot Water[COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]• [/COLOR]Minimizedcorrosionproblems
  
• [COLOR=rgb(50.196080%, 50.196080%, 50.196080%)]– [/COLOR]With the system, lower maintenance cost
  
  
  
  
  
  
  

 

[DCBC]

My old employer, Global Industries was researching a similar system with a Norwegian company in 2002. I don't know if that project was ever completed (they were purchased by Technip last year) becoming the largest underwater commercial operation on the planet. It sure would free-up some space in the Bell if they could miniaturize the unit. When all's said and done, I've got a lot of confidence in the SLS and the UltraJewel. As you know, confidence is everything when it comes to equipment.

 

[Akimbo]

…. Its in Power Point. I dont know how to upload it. Should I email it to you?...

Received, thanks. You can upload Power Point [-].pps[/-] .ppt, but not [-].ppt[/-] .pps extensions. Maybe the moderators can add it?

As indicated in my E-mail reply, I am very skeptical but hopeful that I am proven wrong. Unfortunately, only the simplest brute-force technologies seem reliable offshore — let alone the underwater work environment.

No matter how advanced a drysuit and rebreather becomes, what good is it if you can’t keep the diver’s hands warm enough to work? You couldn’t even get out of the bell without punching holes in a dry glove. Sure you could make super tough dry gloves… but pretty soon they are more like these:

 

[HowardE]

Received, thanks. You can upload Power Point [-].pps[/-] .ppt, but not [-].ppt[/-] .pps extensions. Maybe the moderators can add it?

Now you can...

 

[Akimbo]

Likely it was a Divex SLS Mk IV. This is commonly used in Sat Diving. It provides 13 1/2 mins. of warm gas/hot water at 400M, or 26 mins. at 150M and is used with the UltraJewel 601 Reclaim Helmet. It obviously was enough to save his life...

For those interested, it's a semi-closed circuit rebreather.

How does it deliver warm gas and hot water with a severed umbilical??? You get some exothermic heat from the absorbent but not much. Check my math but 2½ gallons/minute at 110° F (typical hot water suit requirement) is around 1,400 BTU/Minute starting with 45° water.

It will be interesting to learn what rig he was on and if any gas was left.

 

[Bombay High]

the file size is too large !