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Message
What happened to the containment dome?
Posted on 6/14/10 at 3:48 pm
Posted on 6/14/10 at 3:48 pm
After the first week of the leak it was mentioned that BP could use containment domes.
It was even mentioned that such domes were already built and one was in Italy.
BP then makes a box, and tries to use this box to contain the well. But wasn't the dome the superior design?
So they use this box, and it ices up and then becomes buoyant, because of the the natual gas and also because of the cold water.
So how come water proof heating elemants like those found in every dishwasher weren't used. I can understand the risk of ignition but I am sure there are ways to insulate the heating element.
Then they built a top hat and never used it.
From the outside looking in, IMHO it seems like they gave up on the containment dome plan way too early.
It was even mentioned that such domes were already built and one was in Italy.
BP then makes a box, and tries to use this box to contain the well. But wasn't the dome the superior design?
So they use this box, and it ices up and then becomes buoyant, because of the the natual gas and also because of the cold water.
So how come water proof heating elemants like those found in every dishwasher weren't used. I can understand the risk of ignition but I am sure there are ways to insulate the heating element.
Then they built a top hat and never used it.
From the outside looking in, IMHO it seems like they gave up on the containment dome plan way too early.
Posted on 6/14/10 at 4:02 pm to Napoleon
quote:
Then they built a top hat and never used it.
wat?
they're using the top hat as we speak
Posted on 6/14/10 at 4:05 pm to Napoleon
quote:
NolaZach
Ummm, Please pay attention.
Posted on 6/14/10 at 4:33 pm to Napoleon
The containment dome, aka cofferdam, was the first thing they tried. It iced up because there were no methane injection lines. They are currently using a top hat (#4 to be exact).
Posted on 6/14/10 at 6:06 pm to Napoleon
too much pressure and hydrates for a dome
Posted on 6/15/10 at 1:24 am to YatTigah
That's top hat number two not the containment dome that looked like a large top hat.
they have like a cap on it now not a fully contained dome.
I mean why not use something designed to cover the BOP?
They came across the ice problem and gave up on that plan, seems there should be a way to make it work.
Or we can just wait until August.
they have like a cap on it now not a fully contained dome.
I mean why not use something designed to cover the BOP?
They came across the ice problem and gave up on that plan, seems there should be a way to make it work.
Or we can just wait until August.
This post was edited on 6/15/10 at 1:27 am
Posted on 6/15/10 at 8:39 am to Spitfire
quote:Yeah lots of seaweed at 5,000fsw...
It seems a piece of seaweed would clog it up.
Posted on 6/15/10 at 9:40 am to Taxing Authority
quote:
Yeah lots of seaweed at 5,000fsw...
still why couldn't it be bigger?
Posted on 6/15/10 at 12:20 pm to Chad504boy
There is debris that deep.
No plant life past 300 feet though.
Another question, how come no manned submersibles have gone down there?
James Cameron can look at the Titanic at 11,000 feet and we can't send observers to 5,000 ft?
No plant life past 300 feet though.
Another question, how come no manned submersibles have gone down there?
James Cameron can look at the Titanic at 11,000 feet and we can't send observers to 5,000 ft?
Posted on 6/15/10 at 12:51 pm to Napoleon
quote:Very little. It's not typically in the water column either. If it floats its far off bottom. If it sinks, it's on bottom. Besides it isnt' debris that clogged the system up. It was hydrates. They would have formed regardless of hole size.
There is debris that deep.
quote:Submersibles don't have manipulators and tooling designed to do construction work. If they are free swimming they don't have the hyraulic power a teathered unit has either. Acceptable for observation, but there's no value in going down, looking at it, going "yup. there it is." and returning to surface.
Another question, how come no manned submersibles have gone down there?
This post was edited on 6/15/10 at 12:52 pm
Posted on 6/15/10 at 1:29 pm to Taxing Authority
Yeah lots of seaweed at 5,000fsw...
Im being Facetious Francis.
So the question is, why do you have a 5 story containment dome collecting 1000s of barrels of oil and sending it through a 1 inch hole to a 6 inch riser. Im sorry, it seems a little small.
This post was edited on 6/15/10 at 1:32 pm
Posted on 6/15/10 at 1:41 pm to Chad504boy
quote:
still why couldn't it be bigger?
twss
Posted on 6/15/10 at 2:03 pm to Taxing Authority
Why did they give up on the plan because of the hydrates, instead of trying to adapt that idea and deal with the hydrates.
At least the containment dome made sense. I was happy and even proud of the LA fabricators who made the box. It looked like the solution. Then It got blocked up with ice and was abandoned.
My original questions were centered on why was the whole idea of a containment dome scrapped?
Seems like there were dozens of ways to try and combat this icing issue.
From the outside looking in, not enough is being done.
At least the containment dome made sense. I was happy and even proud of the LA fabricators who made the box. It looked like the solution. Then It got blocked up with ice and was abandoned.
My original questions were centered on why was the whole idea of a containment dome scrapped?
Seems like there were dozens of ways to try and combat this icing issue.
From the outside looking in, not enough is being done.
This post was edited on 6/15/10 at 2:05 pm
Posted on 6/15/10 at 3:29 pm to Napoleon
Why did they give up on the plan because of the hydrates, instead of trying to adapt that idea and deal with the hydrates.
The top hat forms a seal. It is better. The flow rates are to high to capture enough oil through the riser without pressure to force most of the flow to the top. The top hat is better. The current top hat has features to help with hydrates. The top hat is better.
The top hat forms a seal. It is better. The flow rates are to high to capture enough oil through the riser without pressure to force most of the flow to the top. The top hat is better. The current top hat has features to help with hydrates. The top hat is better.
Posted on 6/15/10 at 3:36 pm to omegaman66
What are those valves the ROV is turning right now ?
Posted on 6/15/10 at 5:27 pm to omegaman66
quote:
omegaman66
Do you think the top hat is better? I wasn't sure if you do.
Posted on 6/15/10 at 11:52 pm to omegaman66
How is it better lots of oil still gets out.
The original idea was to have a massive coffer Dan that sunk into the ground and used the ground to form a seal.
This was before the pipes were cut off, could probably even have a better seal now.
What they have now is not working that well.
Can't see how it us better. The original coffer dam is still on the sea floor so it's obvious they didn't try to retro fit it with something to deal with the hydrates.
The original idea was to have a massive coffer Dan that sunk into the ground and used the ground to form a seal.
This was before the pipes were cut off, could probably even have a better seal now.
What they have now is not working that well.
Can't see how it us better. The original coffer dam is still on the sea floor so it's obvious they didn't try to retro fit it with something to deal with the hydrates.
Posted on 6/16/10 at 12:54 am to Napoleon
The oil that is not being captured by the top hat is because the Enterprise can not handle more oil. The seal on the pipe also isn't the best because they had to use shears after the diamond saw didn't cut all the way through the riser. So a some leakage with this containment dome is probably always going to happen even if they Enterprise could handle an unlimited amount of oil and gas.
But the seal isn't an issue because the Enterprise can not handle as much oil as the well is putting out.
A new cap will be used in a couple of week and it will be hooked up to a production rig instead of the Enterprise. Then they will be about to capture 20-25 thousand barrels a day out of that riser. Which will be in addition to the 5-10k they are going to catch through the choke line. which is hopefull being started right now.
But the seal isn't an issue because the Enterprise can not handle as much oil as the well is putting out.
A new cap will be used in a couple of week and it will be hooked up to a production rig instead of the Enterprise. Then they will be about to capture 20-25 thousand barrels a day out of that riser. Which will be in addition to the 5-10k they are going to catch through the choke line. which is hopefull being started right now.
Posted on 6/16/10 at 12:59 am to omegaman66
I mean the top hat is better than the coffer building because the coffer dam thing doesn't work. It froze up with hydrates when they were still 2000 feet above the gulf floor.
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