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Started By
Message
re: St. Bernard 42 Yr Old Corroded Pipeline Leaks 300,000 Gallons of Diesel
Posted on 1/13/22 at 7:28 am to Merica
Posted on 1/13/22 at 7:28 am to Merica
We have some 60+ yr old pressure vessels, ~6ksi, that weren’t even built to code initially. Some layered, some T-1…all questionable. Fracture mechanics to develop remaining safe-life on those is challenging. Hell, we have Div 2 vessels from the 90’s that show all sorts of LOF when subjected to PAUT examinations.
This post was edited on 1/13/22 at 7:28 am
0
Posted on 1/13/22 at 7:31 am to Shexter
Sounds like inspection company dropped the ball.
Posted on 1/13/22 at 7:52 am to Shexter
No corrosion tests?
No pigs sent through the line?
No pigs sent through the line?
Posted on 1/13/22 at 7:54 am to TDFreak
quote:
maintained. Pressures were probably not excessive. Diesel is not highly corrosive. Maybe there was some galvanic corrosion going on.
External corrosion
Posted on 1/13/22 at 9:02 am to Oilfieldbiology
Sounds like it had some slight rust buildup. Duct tape it and move on.
Posted on 1/13/22 at 9:03 am to Shexter
Sidney Torres finna eat
Posted on 1/13/22 at 9:07 am to Shexter
Where's the dude on here talking about how Louisiana takes such good care of its natural resources?
This post was edited on 1/13/22 at 9:08 am
Posted on 1/13/22 at 9:11 am to Merica
quote:
our infrastructure is constantly getting older.
That’s how time works
Posted on 1/13/22 at 9:26 am to HoustonGumbeauxGuy
It was a 16” line so it’s DOT regulated. Smart pig ran at a minimum once every 5 years.
I’m sure they saw corrosion, there is tons of corrosion all over every pipeline. You repair first what is required by regs, then repair what internal company guidelines you put in place. It sounds like the corrosion reported wasn’t a fed required repair.
The issue is every smart pig company is different and the tools usually have at least a +/- 10% threshold for what they call. You have to do analysis based on the depth and length of the anomalies on what causes pressure issues or not depending on what the pipes operating pressure is at.
What likely happened was the smart pig under-called the Anomaly and they either didn’t select this area for field investigation or they haven’t completed that work yet.
I’m sure they saw corrosion, there is tons of corrosion all over every pipeline. You repair first what is required by regs, then repair what internal company guidelines you put in place. It sounds like the corrosion reported wasn’t a fed required repair.
The issue is every smart pig company is different and the tools usually have at least a +/- 10% threshold for what they call. You have to do analysis based on the depth and length of the anomalies on what causes pressure issues or not depending on what the pipes operating pressure is at.
What likely happened was the smart pig under-called the Anomaly and they either didn’t select this area for field investigation or they haven’t completed that work yet.
This post was edited on 1/13/22 at 9:28 am
Posted on 1/13/22 at 1:26 pm to Merica
Update on animals:
LINK
That sucks
I don't understand how it went from "not that bad" to "rupture" in 14 months.
TO me this is like the Florida condo. You see the obvious corrosion and decide, meh, it's fine, not gonna fix it until someone makes me! Government is corrupt and incompetent so no one makes them, or apparently even makes them keep an eye on it.
Also do these pipelines not just auto shut down / stop flow when there is a loss of pressure, which I assume with a leak, there would be?
LINK
quote:
On Wednesday, wildlife officials said more than 2,240 fish, including shad and gar, and 104 other animals, were found dead at the spill site. The toll includes 32 birds, 39 snakes and 16 turtles.
That sucks
quote:
In October 2020, an inspection of the 42-year-old pipeline revealed external corrosion along a 22-foot section of pipe in the same area as the spill. But repairs were delayed after an inspection indicated the corrosion was not bad enough to require immediate work, according to the U.S. Pipeline and Hazardous Materials Safety Administration.
I don't understand how it went from "not that bad" to "rupture" in 14 months.
TO me this is like the Florida condo. You see the obvious corrosion and decide, meh, it's fine, not gonna fix it until someone makes me! Government is corrupt and incompetent so no one makes them, or apparently even makes them keep an eye on it.
Also do these pipelines not just auto shut down / stop flow when there is a loss of pressure, which I assume with a leak, there would be?
Posted on 1/13/22 at 4:52 pm to Merica
Quality/Labs team getting complacent
Posted on 1/13/22 at 5:36 pm to BigJman
quote:
By rail is so much safer and economically friendly for fuel transport
Funny how the party that suggested "camp for grown-ups" and vilifies our race now wants to herd us onto trains. No precedent there, not at all.
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