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HelicopterOff Topics News & Politics › Please explain whats going on, oil spill problem.
05-31-2010 09:42 PM  7 years agoPost 1
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Maybe someone with some deepwater drilling experience can explain.
Why didn't the 'Box' lowered over the leak work. Seems that the box cover and pumping to a surface tanker would significantly reduce the amount of contamanation plus the recovery of valuable oil.
Or, lay a large pipe near the leaks and pump like a vacuam cleaner to pump it to the surface.
I'm sure I have no idea of the difficulty but why not try ?

Watching the live feed it looks like some sort of box the ROV is manuvering into position ???
Paul

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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05-31-2010 10:01 PM  7 years agoPost 2
11290

rrApprentice

Evansville, IN and Orlando, FL

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I didn't really understand why the box didn't work either. They were talking about the formation of ice crystals in the piping, etc. Didn't totally understand but I have to take what they said at face value.

It seemed to me that they could put the box over the valve and just pump concrete into the box and fill it up. They would have to have some sort of a vent when the concrete would displace the seawater, but that should be possible. Between the weight of the concrete and the overall weight of the box, I wouldn't think that the pressure of the oil/gas would push it up off the ocean floor, but I wouldn't have a clue how to stop it.

One other thing, couldn't understand why they just didn't take the piping off of the top of the blowout valve and try to insert some kind of inflatable bladder into it to stop the leak. I realize that there is a lot of upward pressure in the well but they use bladders in all sorts of industrial piping situations. Have absolutely no idea if that would work.

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06-01-2010 12:33 AM  7 years agoPost 3
ZZ3Astro

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Panama City, Fl

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Not that I know much about the oil industry but as I understand it, there are a number of issues at play when they cut off the top of the riser. The riser I believe is 21" in diameter. On each side of the riser there is also a smaller tube around 3" to 4" in diameter, which they have just finished cutting off both of those on the live video feed as I type this. Inside the riser is a drill pipe that is anywhere from 4" to 6" in diameter.

The main reason they can't just shove something in the riser is the drill pipe is there blocking the way. However, the drill pipe may fall down through the bore when they cut it and the bent-over riser off. This leaves the possibility that the shear rams (which normally could cut the drill pipe in half but didn't work) could then be closed and stop or slow the leak. Apparently the shear rams are capable of cutting the drill pipe in half, but not the threaded section where the drill pipes are coupled.

As for that box they built, the hole in top going to the pipe seemed really small to me from the very beginning. Wasn't surprised it stopped up so quickly.

Lots of good info at http://www.theoildrum.com

Aeolus 50 3D CF - 8FGH/R6008HS - GY520/BLS251 - BLS451 x 3 - Multigov - S3155 - YS56

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06-01-2010 01:14 AM  7 years agoPost 4
Hivoltage

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Ohio

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Obama had the answer...." Just Plug the Damn Leak " Why didnt BP think of that brilliant solution.

He is such an A**.

I Dont Have No Stink'in Signature

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06-01-2010 01:22 AM  7 years agoPost 5
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Right now on the live feed, two rov are down there and one looks like it is cutting a leaking pipe off ??? Interresting feed.
http://www.huffingtonpost.com/2010/...d_n_583682.html

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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06-01-2010 01:34 AM  7 years agoPost 6
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Thanks ZZ3Astro
It makes sense in seeing what they are cutting off.
Paul

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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06-01-2010 02:03 AM  7 years agoPost 7
synodontis

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United Kingdom

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the problem with stuff like this is that the public always thinks that it's simple/easy to fix. But you got to understand that if that was the case they would have done it ages ago - they do after all have a lot of experts working on this overtime now.

In cases like this, I'm almost certain they knew of the dangers of something like this happening, but did not allow for a series of other issues that complicated the matter further, which is why it's taking a lot longer to fix than it should.

I am utterly devastated that they made the decision to pump chemical in to clear it up, I was having a conversation with someone who overseas construction of oil/gas tankers and he told me that these chemicals did more harm than good, and this has been well known for some time.

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06-01-2010 02:07 AM  7 years agoPost 8
11290

rrApprentice

Evansville, IN and Orlando, FL

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Curious as to what the "on-duty" time is for the operators of the subs. Seems like sitting there perform this this tedious job would give one a headache very quickly. Just my conclusion after watching the video feed for about 15 minutes straight.

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06-01-2010 05:42 AM  7 years agoPost 9
nitro fun

rrApprentice

Oc ca

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here is why the box did not work..
http://en.wikipedia.org/wiki/Methane_hydrate

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06-01-2010 06:08 AM  7 years agoPost 10
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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here is why the box did not work..
Thanks, that explains it with enough technical detail to make sense.
Paul

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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06-02-2010 05:33 AM  7 years agoPost 11
11290

rrApprentice

Evansville, IN and Orlando, FL

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Guess I'm just not very bright, but why are they sawing through the pipe to remove it. The pipe has a flanged coupling to the (I guess) blowout preventer. At least the oil will lubricate the saw blade.

Why are they not just taking out the bolts from the flanged coupling, removing the pipe and installing a new flanged valve on the BOP?

It seems they could just leave the valve in the open position, bolt up to the flanged BOP and then close the valve just the same as they would have closed the valves of the BOP that didn't work the first time.

The technology has to exist to loosen or tighten the bolts of the flanges at that depth as they would have had to do that by robot on some of the piping when they first installed it. Since they are obviously using some form of a hydraulic saw, the technology surely must exist to use some form of a hydraulic "ratchet", open end or socket wrench.

Just some more of my ramblings. I know that there are many great engineering minds working on this, not only for BP but the other oil companies also.

I've got to be missing something, but after retiring from 40 years in commercial and industrial construction it would seem that some of the power house and chemical plant stuff could surely be adapted for at least a short term fix. Some of the power house stuff is huge and is able to withstand very high pressures.

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06-02-2010 06:40 AM  7 years agoPost 12
shawmcky

rrElite Veteran

Isle of Wight,United Kingdom

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^^^

I heard they are wating for Snap On to make the wrenches for the purple anodised flange bolts No doubt BP have some of the very best in the business trying to solve this problem as it is doing tremendous damage to the company,let alone the damage to the lives of local people.I wonder if they will be allowed to drill a hole to put a shelf up in America for many years to come.Rightly or wrongly BP will probably become a swear word in the States for many years.It has not done their share price any good that,s for sure.

Team- unbiased opinion.K.I.S.S principle upheld here

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06-02-2010 04:50 PM  7 years agoPost 13
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Wish there was a technical minute by minute description of whats going on. It looks like that cutter is a wire type cutter (wire with diamond cutting matl) but seems to have stopped for some reason. Any ideas why ?

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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06-02-2010 05:10 PM  7 years agoPost 14
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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Inside the riser is a drill pipe that is anywhere from 4" to 6" in diameter.
That would explain way they can't just unbolt the flange of the riser. I suppose if that drill stem is solid (4 to 6 " dia) then cutting will be very slow.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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