Deepwater Horizon's drill rod buckled at some point but more importantly stray material was present in the drill line, and BOP *just did not activate* when it should have; for a number of proposed reasons. I mean, there's a lot of good discussion here but don't think that there's only one or two things you need to know to successfully drill for oil in the ocean. That's the mistake Tony Hayward made. "We're sorry."
@paulkurilecz4209 No, it was a failure of management to follow general and specific drilling practices and not following agree upon safety and downhill protocols.
@@user-zq3iz3zn5m Well that led to the casing failure. They thought that they could save money by reducing the amount of casing used and reducing the number of centralizers used.
@@user-zq3iz3zn5m Ummm, it was a management decision that lead to a reduction in the amount of casing and centralizers used. There is also a question of the amount of cement returns during the cementing job. Also it is believed that there was either a mud loss or the mud was under weight when the well kicked. All of these decisions lead to a casing failure.
I had an idea once, an improvement, just going to give it away for free here: a secondary backup shear ram WITHOUT hydraulics. Actuated by a specifically formulated powder charge that's lit with a fuse, remotely. The idea is that if the volume of the pistons/pipes is knowd the charge can be formulated to burn as to exactly match needed pressure. Any pressure is possible... even beyond what's needed. The only question is hoe much the shear would be able to handle. This and a double ratcheting mechanism. A "final hope" kind of backup if hydraulics fail.
Footage from inside the BOP showed the blind shear ram had closed and successful cut off the pipe but 4 phase flow of sediment and high pressure eroded channels around the shear. I'm not sure why they said the buckled pipe prevented it from shearing when it did
@@Texaca Yeah I just watched a video that was claiming to be DWH's BOP showing erosion beside the ram. I'm also not sure why the CSB landed on bent drill pipe = missed the shear. I'll try to find it and post it.
i dunno but i dont think that level of rust will affect greatly the performance of the blade, as long as it has the necessary strength to cut the pipe.. just my 2 cents though, i dont even work in oil & gas
@@b1txh yes. Passivated stainless steel does not rust. It costs a lot but in a situation when it is constantly exposed to salt water you would engineer it that way. They just used cheap steel as a cost cutting measure.
I doubt this bit of surface rust is an issue.. Considering that these wells are decomissioned after 20 years, I doubt rust can significantly damage blades of that thickness in that time. There are WW2 Pacific wrecks that have been submerged for 85+ years and are in almost pristine condition. 🙄
maybe its torque and pressing power makes it slower but have more force? It definitely needs to be cleaned tho as that rust might be dangerous in a real blowout. Also, its definitely not greased up enough and would probably not be fast enough to prevent a blowout
Pressure in a pipe makes no difference in how hard it is to cut, this BOP didn’t struggle at all to cut this, needs to be cleaned and greased up though.
its proving that the BOP can actually shear the casing or pipe. Look up what a BOP looks like. not spectacular to look at, but if it was any bigger just to give a more accelerated response to a blow out, it would cost even more than it already does, and oil companies are penny pinchers. Even when a pad of like, 6-8 wells can produce around half a million $ a day depending on whats being produced and sent through the pipe. Every cent counts, and is heckled over...
The blades are rusting terribly. One year after this they will be dull and crumbling after exposure to salt and water. It is very dangerous to rely on this.
I like to see them retested with an under pressure, deviated pipe.
@@joehamel5911 Go back to 2010 and tell that to Deepwater Horizon.
That BOP Stack was out of compliance and far overdue for testing.
Deepwater Horizon's drill rod buckled at some point but more importantly stray material was present in the drill line, and BOP *just did not activate* when it should have; for a number of proposed reasons. I mean, there's a lot of good discussion here but don't think that there's only one or two things you need to know to successfully drill for oil in the ocean. That's the mistake Tony Hayward made.
"We're sorry."
Drill Pipe, this was not a water wel or post hole environmental drilling unit.
Ummm, it was a casing failure.
@paulkurilecz4209
No, it was a failure of management to follow general and specific drilling practices and not following agree upon safety and downhill protocols.
@@user-zq3iz3zn5m Well that led to the casing failure. They thought that they could save money by reducing the amount of casing used and reducing the number of centralizers used.
@@user-zq3iz3zn5m Ummm, it was a management decision that lead to a reduction in the amount of casing and centralizers used. There is also a question of the amount of cement returns during the cementing job. Also it is believed that there was either a mud loss or the mud was under weight when the well kicked. All of these decisions lead to a casing failure.
THANKS
Hope ain't a tactic
If only Deepwater Horizons had tested their blowout preventer before they needed it
I had an idea once, an improvement, just going to give it away for free here: a secondary backup shear ram WITHOUT hydraulics. Actuated by a specifically formulated powder charge that's lit with a fuse, remotely. The idea is that if the volume of the pistons/pipes is knowd the charge can be formulated to burn as to exactly match needed pressure. Any pressure is possible... even beyond what's needed. The only question is hoe much the shear would be able to handle. This and a double ratcheting mechanism. A "final hope" kind of backup if hydraulics fail.
Now that's how it's done
That's how it's done? Completely useless test on an empty pipe in atmospheric pressure? Ok bud. 😂
Finally! A great lesson!
PHUK ALL HATERS LOL
EDS
What happens when the pipe kinks and sticks to the bottom of the picture?
deep water horizon is what happens
Footage from inside the BOP showed the blind shear ram had closed and successful cut off the pipe but 4 phase flow of sediment and high pressure eroded channels around the shear. I'm not sure why they said the buckled pipe prevented it from shearing when it did
@@AGuyFromHazard ....do the footage on that?
@@Texaca Yeah I just watched a video that was claiming to be DWH's BOP showing erosion beside the ram. I'm also not sure why the CSB landed on bent drill pipe = missed the shear. I'll try to find it and post it.
@@Texaca czcams.com/video/UxCt3UsmJF0/video.html
So.. does this damage the pipe?
No not at all the pipe is clearly undamaged
It just cut the pipe so...
Operating in theory
Look at all that rust. You think they would make the shear blades out of passivated hardened stainless steel.
i dunno but i dont think that level of rust will affect greatly the performance of the blade, as long as it has the necessary strength to cut the pipe.. just my 2 cents though, i dont even work in oil & gas
@@b1txh yes. Passivated stainless steel does not rust. It costs a lot but in a situation when it is constantly exposed to salt water you would engineer it that way. They just used cheap steel as a cost cutting measure.
I doubt this bit of surface rust is an issue..
Considering that these wells are decomissioned after 20 years, I doubt rust can significantly damage blades of that thickness in that time. There are WW2 Pacific wrecks that have been submerged for 85+ years and are in almost pristine condition. 🙄
Rust doesn't affect the function of the shears much. Also not even stainless steel prevents rust from building when permanently submerged in seawater.
StainLESS =/= stain FREE. There's a reason scrap shears aren't made out of stainless. Durability is a huge factor here.
If it struggles to cut a empty pipe how’s it going to cut a pipe full of high pressure drilling mud
maybe its torque and pressing power makes it slower but have more force? It definitely needs to be cleaned tho as that rust might be dangerous in a real blowout. Also, its definitely not greased up enough and would probably not be fast enough to prevent a blowout
it didn’t struggle it’s hydraulically powered and strong asf 😆
That wasn't struggling at all lol
The mud doesn't make the pipe any stronger. Doesn't make the steel any stronger or harder to cut through.
Pressure in a pipe makes no difference in how hard it is to cut, this BOP didn’t struggle at all to cut this, needs to be cleaned and greased up though.
But oil would still spill from the cut pipe!
Better than losing control of the well
and out the bottom of the casing where cement should have been (DWH)
That slow? And this is an empty pipe, so what is being proven here?
So what if it were a full pipe ?
It would shear just as easily if not easier given the pipe would ever so slightly resist flattening.
its proving that the BOP can actually shear the casing or pipe. Look up what a BOP looks like. not spectacular to look at, but if it was any bigger just to give a more accelerated response to a blow out, it would cost even more than it already does, and oil companies are penny pinchers. Even when a pad of like, 6-8 wells can produce around half a million $ a day depending on whats being produced and sent through the pipe. Every cent counts, and is heckled over...
looks like ancient tech
The blades are rusting terribly.
One year after this they will be dull and crumbling after exposure to salt and water.
It is very dangerous to rely on this.
That blow preventer was 5 years past due for a class 6 overhaul maintenence.