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Associated Press Says they started lowering the Containment Dome

Posted on 5/6/10 at 11:46 pm
Posted by NATidefan
Two hours North of Birmingham
Member since Dec 2008
36776 posts
Posted on 5/6/10 at 11:46 pm
LINK

Posted at 11:00 PM 5/6/2010 CST.
quote:

ON THE GULF OF MEXICO — Workers eased a giant concrete-and-steel box into the Gulf of Mexico late Thursday, starting the long process of lowering the contraption over the blown-out oil well at the bottom of the sea in an untested bid to capture most of the gushing crude and avert a wider environmental disaster.

The 100-ton containment vessel is designed to collect as much as 85 percent of the oil spewing into the Gulf and funnel it up to a tanker. It could take several hours to lower it into place, after which a steel pipe will be installed between the top of the box and the tanker.

The whole structure could be operating by Sunday.


I hope the damn thing works.
This post was edited on 5/6/10 at 11:47 pm
Posted by Ash Williams
South of i-10
Member since May 2009
18538 posts
Posted on 5/7/10 at 12:03 am to
man, talk about needing pretty good aim and control of those robots
Posted by redneck
Los Suenos, Costa Rica
Member since Dec 2003
54156 posts
Posted on 5/7/10 at 12:06 am to
man i hope this thing works
Posted by ibldpg
south
Member since Dec 2009
2503 posts
Posted on 5/7/10 at 12:23 am to
quote:

man, talk about needing pretty good aim and control of those robots


if you've never seen the ROV's work, it's amazing the shite they can do subsea...this shouldn't be much of a challenge for them
Posted by Ash Williams
South of i-10
Member since May 2009
18538 posts
Posted on 5/7/10 at 12:31 am to
quote:

if you've never seen the ROV's work, it's amazing the shite they can do subsea...this shouldn't be much of a challenge for them


ive seen them do shite on videos, but never seen em trying to manipulate a 100 ton house onto a specific spot

hope it works though, im sure much wiser men than myself have this all figured out
Posted by ibldpg
south
Member since Dec 2009
2503 posts
Posted on 5/7/10 at 12:34 am to
quote:

100 ton


the weight may turn out to be beneficial...this thing shouldn't want to wonder around alot due to underwater currents or whatnot...and when in water, the rov thrusters should be able to maneuver it easily enough if needed
Posted by Oyster
North Shore
Member since Feb 2009
10224 posts
Posted on 5/7/10 at 6:34 am to
how much thrust do the ROVs have?

How big is the typical ROV?
Posted by NATidefan
Two hours North of Birmingham
Member since Dec 2008
36776 posts
Posted on 5/7/10 at 7:08 am to
Apparently the dome is nearing or has reached the seabed by now.
Posted by oilfieldtiger
Pittsburgh, PA
Member since Dec 2003
2904 posts
Posted on 5/7/10 at 7:30 am to
quote:

How big is the typical ROV?

most of the ones on rigs are a little smaller than a compact car, but some of the bigger intervention vessels and installation vessels have slightly bigger/more powerful versions. the stuff they can do as far as manipulating tools and flying around is pretty amazing.

they can't really "move" giant thing stuff like BOP's and this containment dome as it's lowered, but they can do pretty cool stuff in guiding it into a precise location.

the coarse movements are typically done by moving the rig/vessel at surface, then the ROV assists in making the finer adjustments.

while this containment dome weights 200k lbs, keep in mind that the typical 15k psi subsea BOP stack weighs btw 500-700k lbs, and ROV's assist in getting them landed on the wellhead all the time -- and it is a precise operation w/ very, very little clearance.
This post was edited on 5/7/10 at 7:32 am
Posted by Sid in Lakeshore
Member since Oct 2008
41956 posts
Posted on 5/7/10 at 7:35 am to
quote:

Apparently the dome is nearing or has reached the seabed by now.


It is repotedly staged a short way from the wellhead.
Posted by oilfieldtiger
Pittsburgh, PA
Member since Dec 2003
2904 posts
Posted on 5/7/10 at 7:43 am to
quote:

It is reportedly staged a short way from the wellhead.

that make sense. When you're doing stuff like this, you don't want to be sitting directly over the wellhead until you're ready to latch-up (or in this case, cover the BOP).

it sounds silly, but the risk of dropping something on the wellhead is always there when you're doing work in open water. so you lower everything down to within a few hundred feet of the mudline, then move the rig over, and do you final work to get latched up / covered up.
Posted by OldIowaTiger
Baton Rouge
Member since Nov 2006
7313 posts
Posted on 5/7/10 at 8:54 am to
Please, dear God, let this work.
Posted by tiger91
In my own little world
Member since Nov 2005
39928 posts
Posted on 5/7/10 at 8:55 am to
quote:

Apparently the dome is nearing or has reached the seabed by now



The "News" said (can't remember which station) that it would take 12 hours to get the thing here and THEN 48 or so to get it placed. Sounds like they were wrong.
Posted by tgrbaitn08
Member since Dec 2007
148031 posts
Posted on 5/7/10 at 9:17 am to


Posted by OldIowaTiger
Baton Rouge
Member since Nov 2006
7313 posts
Posted on 5/7/10 at 9:54 am to
All kinds of fail in that image.

By the way, I don't know what I'm talking about, just what I have seen on the news lately.

They aren't dropping the dam directly onto the leak. As you have said in this thread, it's going onto the sea floor and then they'll move it into position.

Dam is listed as 73 tons but I have seen more often 100 tons.

And also, I know they are drilling a relief well but they also talked about trying to perhaps pump mud and concrete into the current leak to cap it off so they wouldn't need to actually do the relief well. It would be a LOT faster, they say.

So, just pointing out the discrepancies in the news.
Posted by lsugradman
Member since Sep 2003
8931 posts
Posted on 5/7/10 at 10:17 am to
Also the image shows that the relief well will be drilled into the reservoir. I would be surprised if they go that route. No telling what sorts of depletion or pressure issues you have going onthere. Better to just target close to the last casing shoe which would just above the reservoir.
This post was edited on 5/7/10 at 10:25 am
Posted by Oyster
North Shore
Member since Feb 2009
10224 posts
Posted on 5/7/10 at 10:27 am to
quote:

All kinds of fail in that image.


All kinds of fail in most of the reporting on the whole mess. Most every article or report you see contradicts others in one way or another.
Posted by mikeytig
NE of Tiger Stadium
Member since Nov 2007
7724 posts
Posted on 5/7/10 at 10:46 am to
quote:

but they also talked about trying to perhaps pump mud and concrete into the current leak to cap it off so they wouldn't need to actually do the relief well


Seems like this has to be done eventually, the drillship cannot collect the oil from the dam for very long can it?
Posted by Luke4LSU
Member since Oct 2007
11986 posts
Posted on 5/7/10 at 10:49 am to
This entire episode and the subsequent reporting should be a lesson to everyone in America:

The media doesn't know what the frick they're talking about with regards to the oil industry. Journalists will report whatever sounds most sensational at the expense of facts and a good technical understanding of what's going on.

This is nothing new...especially with regards to the O&G industry.
Posted by OldIowaTiger
Baton Rouge
Member since Nov 2006
7313 posts
Posted on 5/7/10 at 10:57 am to
quote:

All kinds of fail in most of the reporting on the whole mess


Definitely agree.

I read a sad story about a guy who runs a fishing lodge WEST of the Mississippi and he said that he's had a bunch of cancellations and May is generally his busiest month. He said people are just scared to come down and the journalists that were staying in the area have gone on to the beaches of Mississippi, Alabama, and Florida because they wanted to find some more interesting stories. But when they left they failed to make clear that all is clear west of the Mississippi at the moment.
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