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Thunderbirds are go...
Mr Whippy - 21/6/19 at 06:23 AM

Well there goes yet another Northsea platform whisked away with giant equipment that beggars belief. I used to do the weekly bedding plans for this...




You tube linky

After some high profile deaths on the platform, we had a senior guy from Shell do a presentation on this platform about how they would improve the control of gas and oil leaks in the legs (the internal pipes were covered in patches and rust) right in the middle of the presentation he noticed on his cross section of the legs they looked just like huge cannons pointing right at the deck were there to be a gas explosion hmmm

Dingz - 21/6/19 at 06:50 AM

WOW! What is the weight of that platform, and will they put it back?

scudderfish - 21/6/19 at 06:53 AM

Wow!

Mr Whippy - 21/6/19 at 08:13 AM

quote:
Originally posted by Dingz
WOW! What is the weight of that platform, and will they put it back?


off to get scrapped...it's 43 years old

weight of the deck is about 24,500 tons

jeffw - 21/6/19 at 08:42 AM

That is pretty impressive. Custom built ship/lifting platform. What happens to the subsurface part?

Mr Whippy - 21/6/19 at 10:05 AM

quote:
Originally posted by jeffw
That is pretty impressive. Custom built ship/lifting platform. What happens to the subsurface part?


Good question, last I heard they were wanting to re-float it since the tanks are very contaminated but whether the mud will let it go or it doesn't just breakup in the attempt... Some suggested putting wind turbine on them but the whole structure was only meant to last 15 years, it been out there almost 3 times that. I'm sure the concrete and rebar will be in quite a state...

T66 - 21/6/19 at 04:50 PM

Ive always been interested in the sheer size of offshore engineering, my son does NDT for Applus, and they do the NDT for Subsea 7 laying gas pipelines under the sea. They spool 1.5km lengths of 16 inch pipe onto the back of a ship. Something I still cannot get my head round.

Allseas have invested heavily in other similar ships, theres another called Peter ? looks the same as that. Built specifically for North Sea decommisioning.

The topsides of something North sea like have just arrived at Teesport, was on the local news yesterday.

perksy - 21/6/19 at 07:44 PM

Fair play that's real engineering


Makes Jacking a car up in the air look like nothing

Abe - 21/6/19 at 09:55 PM

Awesome! Amazing engineering. Would love to see this

daviep - 22/6/19 at 05:05 PM

quote:
Originally posted by Mr Whippy
quote:
Originally posted by jeffw
That is pretty impressive. Custom built ship/lifting platform. What happens to the subsurface part?


Good question, last I heard they were wanting to re-float it since the tanks are very contaminated but whether the mud will let it go or it doesn't just breakup in the attempt... Some suggested putting wind turbine on them but the whole structure was only meant to last 15 years, it been out there almost 3 times that. I'm sure the concrete and rebar will be in quite a state...


The life expectancy of the concrete "condeep" base is 200 years.

I would guess they are not repurposed for wind turbines due to the cost of installing infrastructure. I'm sure Shell have come up with lots of good reasons for why it is best just to leave them to crumble in to the sea over the next 200 years, obviously nothing to do with avoiding the cost of cleaning up after themselves.