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Studeo
24th June 2010, 10:18
http://tvnz.co.nz/technology-news/slinky-answer-oil-leak-3608555

http://tvnz.co.nz/technology-news/slinky-answer-oil-leak-3608555/video

As oil giant BP pledges billions of dollars to clean up the Gulf oil spill, two Kiwi entrepreneurs think they may have the answer with their home grown invention.

According to United States government estimates, up to four million barrels of oil have spewed into the ocean since April 20, when the rig in the Gulf of Mexico exploded, killing 11 workers and rupturing BP's well.

The spreading oil slick has shut down rich fishing grounds, killed hundreds of marine life and soiled the coastlines of four states.

It has quickly become the worst spill in US history and is now also one of the one of the world's biggest ever environmental disasters.

However Kiwis Simon Moore and Dan McElrea say they have come up with the answer and it's about as Kiwi-can-do as it gets - based on the common slinky.

The idea came from a product they designed to contain water under pressure for a garden hose and now their company Puku, is working flat out on the concept.

Central to the rupture, is that the broken oil pipe has a jagged top which nothing will seal.

And that's where the Kiwi entrepreneurs think they have found the solution.

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"You need something you can drop in, release and it grips," says Moore.

"In one direction it gets smaller and then you put it into a pipe at bottom of sea and release it...it will jam against the inside pipe," says McElrea

Tests show a basic slinky can even hold a man's weight.

The Kiwi concept is also getting some serious backing.

"It's a good principle, a very robust one, I think it certainly merits further consideration," says Grath Woodhouse, Fluid Connectors Specialist, Hydraulink.

The disaster underwater is a challenge, but now their biggest problem is getting heard by BP.

BP certainly needs the help, but while it says it's considering the ideas submitted, all 20,000 of them, they say it's extremely difficult to get through.

Moore says the situation is very frustrating.

"I think we've got an answer that is conceptually very strong," he says.

"The key to design is sometimes a bit of ignorance," says McElrea.

"If you have a PhD in advanced marine engraining, you know an awful lot, but you know about the systems, and methods that have been taught&sometimes the really great ideas seem silly to start with," he says.

As the oil keeps spilling, all they can do is carry on testing and trying to get through.

"We've got a solution that we know will work and we can't get heard," says Moore.

Caren
24th June 2010, 11:19
Sounds like a great plan. Best of luck to those two good human beings in getting through to BP!
Caren

Bill Ryan
24th June 2010, 11:47
http://tvnz.co.nz/technology-news/slinky-answer-oil-leak-3608555

http://tvnz.co.nz/technology-news/slinky-answer-oil-leak-3608555/video

Kiwis Simon Moore and Dan McElrea say they have come up with the answer and it's about as Kiwi-can-do as it gets - based on the common slinky.

The idea came from a product they designed to contain water under pressure for a garden hose and now their company Puku, is working flat out on the concept.

Central to the rupture, is that the broken oil pipe has a jagged top which nothing will seal.

And that's where the Kiwi entrepreneurs think they have found the solution.

"You need something you can drop in, release and it grips," says Moore.

"In one direction it gets smaller and then you put it into a pipe at bottom of sea and release it...it will jam against the inside pipe," says McElrea.

[snip]
"We've got a solution that we know will work and we can't get heard," says Moore.

I enjoyed watching the video demos, and the concept is ingenious.

But it won't work, for two reasons (I wish I was wrong...!):

1) The problem is not [any more] to cap the well at the top. That's why they abandoned the 'Top Kill' three weeks ago. The well casing is compromised (ruptured) under the sea bed.

If anyone were to succeed in blocking the outflow at the top, the immense pressure would further damage the well casing and the oil would gush out of the sides of the casing, underground, into the rock strata to emerge miles away.

This is already happening. The reason the oil is being allowed to flow freely is to not make this situation worse. Where it's coming out (mostly in one known place - at the top of the well), they're trying to collect it. It's their best shot until the relief wells are completed. (See this explanatory post here (http://projectavalon.net/forum4/showthread.php?2993-Questions-and-Answers-about-the-Gulf-Oil-Catastrophe&p=29395&viewfull=1#post29395).)

2) The immense pressures almost certainly mean that they can't put ANYTHING down the pipe, even if they wanted to. They can pump stuff, like heavy 'mud' (specialized drilling fluid that forms a giant super-heavy liquid 'cork'), or even try to seal it with a 'junk shot' (literally odd-shaped pieces of metal designed to form a locked blockage). They quickly stopped both of these in the 'Top Kill' attempt when they realized that this was making the problem worse.

Nothing can be 'dropped' into the pipe. The pressures are too great. My favorite comment on this came from the Oil Drum Forum (http://theoildrum.com) (with many well-intentioned, knowledgeable and experienced oil engineers contributing there), where one member said it would be like "trying to insert a wet noodle up a wildcat's arse". Quite so.

jimmer
24th June 2010, 15:59
bp was going for the mother lode and came up with the mother of all disasters.
they just got a little bit too greedy. it's all a mistake, but a mistake without a reasonable solution.
the wait for the august relief wells is a time waster for bp and obama.
when that time comes and it's reported that the strategy has failed and talks move
to a nuke, we all need to express our outrage in every effective way possible.
and as the US southern coast is decimated with europe potentially in the sights, we need to get mad
and do what we can, vote conservative.
none of this needed to happen if reliable sites (land, shallow waters) were allowed to be tapped.
in the end, runaway environmentalism/liberalism brought us another unintended consequence / disaster.
"we tried it your way and it doesn't work."

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