[QUOTE=company man 1;35679]The highest burst rating I found for 22" casing was 2500 PSI.[/QUOTE]
For grade X-56 very likely.
They used X-80 224lb/ft according to MMS. This I think is newer, higher strength steel?.
Anyway, I still haven’t found any accurate data yet though. I’ll keep digging.
KASOL… any ideas?
The displacement procedure came from onshore organisation http://energycommerce.house.gov/documents/20100512/Internal.BP.Email.Regarding.Negative.Test.Results.pdf
[QUOTE=Alf;35735]For grade X-56 very likely.
They used X-80 224lb/ft according to MMS. This I think is newer, higher strength steel?.
Anyway, I still haven’t found any accurate data yet though. I’ll keep digging.
KASOL… any ideas?[/QUOTE]
The burst can be calculated: Casing Burst Pressure 22" extension jnt = 0.875 * 2 * Y * T / OD => (0.875280000*1.25)/22 = 7954 psi. That is not bad but the connections are Drill Quip H90/MT and I do not think they are gas tight. It is a q uick connector with o ring.
SS-15 Big Bore II “Standard Schematic” courtesy of Dril-Quip.
Sorry Had to delete attachment due to the “small print”
[QUOTE=lfgd521rc;35734]In layman’s terms.
You have a 50 foot section of fire hose hooked to a 1000 gal/min fire hydrant and you have to keep the water from coming out of the hose with one bare hand. Ain’t gonna happen!
Hard enough to keep water from coming out of a garden hose hooked to the house spigot with 25 gal/min coming out of it.
Based on the testimony of one or more of the DWH family members, and the satellite phone call from the OIM to someone, somewhere. They ALL knew this was probable… Guys writing wills and teaching their wives how to do stuff around the house is nearly terminal behavior.
So BP was blinded to the finger in the dike principle.
1,000 psi to blow the casing out out of the well.
Somebody better call LC ‘cause he ain’t never heard of nothing like this.[/QUOTE] Amen Brother! You can damn well bet there was banter going on on the rig floor that afternoon. That is why BP has hidden all records from the afternoon reports & has probably erased all phone messages from the rig. They had to be well aware of waht was happening & were just too damn stubborn to admit it. This well was designed to fail no matter what? They were never gonna get that rig off of that well unless they made major changes.
You don’t design an international airport with a 1500’ runway then blame the coming accident on pilot error. You don’t buid a bridge halfway across the top of the grand canyon & just stop the track & blame the engineer of the train. You sure as hell don’t run production casing with a cross sectional area 2 1/2 times the cross swectional area of the production string & a hang it off hoping to hold back possibly 12,000 PSI of formation pressure & blame it on the company man, drill crew, or the BOPs.
I am surprised all these principals (context post 2274) still have their LinkedIn pages up… Note to self, if involved in a major incident, have a plan to remove your web presence, experience and past history from public view.
Alf, THANKS for the big bore catalog from Drilquip! Now us “outsiders” can finally see what was really in that well and where it was… that is coupled with the DOE drawing.
[QUOTE=Alf;35738]SS-15 Big Bore II “Standard Schematic” courtesy of Dril-Quip.[/QUOTE]
That absolutely prooves my point. The flow path in that schematic shows the widening of the cross sectional area to go from 9 7/8" OD to the ID of the 22" casing. Game, set & match. I will now ask again, CAN THIS COMPANY EVER BE TRUSTED TO DRILL ANOTHER WELL IN THE UNITED STATES ?
Any idea, CM1, why this design was approved by their senior engineers, AND MMS?
I smell a colony of rats.
[QUOTE=company man 1;35741]That absolutely prooves my point. The flow path in that schematic shows the widening of the cross sectional area to go from 9 7/8" OD to the ID of the 22" casing. Game, set & match. I will now ask again, CAN THIS COMPANY EVER BE TRUSTED TO DRILL ANOTHER WELL IN THE UNITED STATES ?[/QUOTE]
[QUOTE=CPTdrillersails;35725]Could you (or pumpjack hand, or hondo, or) describe as if to lay people what is the importance of the casing weights? Does it counteract bouyancy? If so, what is providing the bouyancy? Seawater when it displaces mud? My guess is this is what you are talking about.
Alternatively, is it burst/crush resistance? I’m sure that is related to wall thickness! Is it overcoming the friction of the rising flow of oil?
I’m not clear how casing blows out of a well. A description of the mechanism would be great.
Thanks![/QUOTE] I can’t tell you everything about bouyancy what I can tell you is it is the resistance by a liquid to make stuff float. A perfect example is 110,000 ton cruise liner floating merily along the top of the ocean instead of the bottom.
[QUOTE=OldHondoHand;35745]Any idea, CM1, why this design was approved by their senior engineers, AND MMS? I smell a colony of rats.[/QUOTE]
There is getting to be so much data floating around that you need a secretary and archive! But if I recall correctly, wasn’t there a discussion in testimony that this well design violated BP’s internal requirements… then there was discussion; and no mention of who and when it was finally approved. I guess it will be up to the attorneys to determine if the MMS permit actually approved the as built design, or an earlier proposal. Wonder if we will ever know when you can’t do forensics on the well…
[QUOTE=bigmoose;35748]There is getting to be so much data floating around that you need a secretary and archive! But if I recall correctly, wasn’t there a discussion in testimony that this well design violated BP’s internal requirements… then there was discussion; and no mention of who and when it was finally approved. I guess it will be up to the attorneys to determine if the MMS permit actually approved the as built design, or an earlier proposal. Wonder if we will ever know when you can’t do forensics on the well…[/QUOTE]
You smell a colony of rats now? Wait a bit. I just heard a rumor that will hit you like a Mike Tyson uppercut if true. I have to check before I give it out, buf if found to be true it will show a connection between Goldman Sachs, Tony Hayward, & the selling of millions of shares of BP stock one week before this "accident " occured.
BTW, my nephew got in today, It seems as though one of his bosses had a talk with one of BP’s bosses & they quit spraying dispersants over their platform. They continued to monitor the benzine & toluline readings & they dropped way off in just 24 hours. Anyway everybody toughed it out & he is feeling better. On the way home now.
[QUOTE=company man 1;35747]I can’t tell you everything about bouyancy what I can tell you is it is the resistance by a liquid to make stuf float. A perfect exampl is 110,000 ton cruise liner floating merily aong the top of the ocean insted of the bottom.[/QUOTE]
Furthermore, wouldn’t the fact that the fluids at tremendous formations pressures be far more dense than fluids at surface pressures, causing them to act more like a solid than a liquid? Also, wouldn’t any kind of plug (cement or other, or casing collapse) in the hole act as stop to create a closed-end cylinder capturing the upwards force of the pressures below? If the casing lockdowns pins and/or rings were not installed, then what prevents the whole string from being lifted up to the top of the BOP stack?
Time for some of our brilliant and learned lurkers to weigh in on these fluid dynamics. Archimedes’ principle (of bouyancy) is all Greek to me.
Assuming Archimedes’ principle to be reformulated as follows,
then inserted into the quotient of weights, which has been expanded by the mutual volume
,yields the formula below. The density of the immersed object relative to the density of the fluid can easily be calculated without measuring any volumes:
(This formula is used for example in describing the measuring principle of a dasymeter and of hydrostatic weighing.)
etc, etc, etc… http://en.wikipedia.org/wiki/Bouyancy
You mean this Tony Hayward? http://www.telegraph.co.uk/finance/newsbysector/energy/oilandgas/7804922/BP-chief-Tony-Hayward-sold-shares-weeks-before-oil-spill.html
This could be purely coincidental, but if we find out he also shorted BP, then that, my friend, is what you call a “smoking gun.”
[QUOTE=company man 1;35749]You smell a colony of rats now? Wait a bit. I just heard a rumor that will hit you like a Mike Tyson uppercut if true. I have to check before I give it out, buf if found to be true it will show a connection between Goldman Sachs, Tony Hayward, & the selling of millions of shares of BP stock one week before this "accident " occured.
BTW, my nephew got home today, It seems as though one of his bosses had a talk with one of BP’s bosses & they quit spraying dispersants over their platform. They continued to monitor the benzine & toluline readings & they dropped way off in just 24 hours. Anyway everybody toughed it out & he is feeling better. On the way homw now.[/QUOTE]
Is the thread over now? I haven’t seen any banter since this morning so I will make a statement & ask some questions. I don’t have a degree. I only have two years of college under my belt. Several of you guys sound like you have plenty of schooling but we haven’t had the tools to work with to understand everything. The only reason I understand about the hydraulic effects of pressure on cross sectional area of seals is through schools I have attended while running various specialized tools in the industry. Having said this & understanding that we’ve been like a bunch of one legged blind men in a butt kicking contest trying to figure this out, how is it not possible that BP, with its wealth of knowledgeable engineers & having all the information right at their finger tips, couldn’t have figured this out ? I believe this was the issue raised by someone in their engineering group back in June of last year. I also believe someone very high up in the company was behind the waivering of the BP standard practices policy who made their safety department & other department heads sign off on the ok to run this design. This person/these people are guilty as hell of killing eleven people & the cause of this massive disaster & have to go to prison. Does anyone have any other thoughts on this?
http://rawstory.com/rs/2010/0602/month-oil-spill-goldman-sachs-sold-250-million-bp-stock/
This should make for some interesting reading.
How about this as a solution to bad well designs, or aggressive well designs? Everyone involved in designing a well has to be on the rig, sequestered in a room next to the drilling floor, once you hit the production formation? Would that work?
[QUOTE=Cynthia;35757]How about this as a solution to bad well designs, or aggressive well designs? Everyone involved in designing a well has to be on the rig, sequestered in a room next to the drilling floor, once you hit the production formation? Would that work?[/QUOTE]
mmm. Wish it were doable.
[QUOTE=company man 1;35756]This should make for some interesting reading.[/QUOTE]
Wait until someone starts digging into the e-mail that “Fabulous Fab” of Goldman Sachs sent to his mistress-thingy that said “Suck it, fishies and birdies” as he was bragging to mistress-thingy about how they had met huge bets against “the gulf of Mexico” (meaning BP) a few days BEFORE the blowout…
“One oil rig goes down and we’re going to be rolling in dough,” Mr. Tourre wrote in one email. “Suck it, fishies and birdies!”
http://www.surfingtheapocalypse.net/forum/index.php?id=237829
Of course, it’s just a co-inky-dense that Hayward sold lots of his BP stock, and GS was shorting BP stock, and Hallyburton bought Boots & Coots just a few days/weeks/month before all this happened.
The truth is starting to spew, just a “little leak” for right now, so don’t worry Tony…:
I’d be real careful about using un-professional media sources, such as the myriad of bloggers that are out there. I spent some time looking at these sites and allegations, and the quotes you list are attributed to a comedian who said he was using satire.
Bad enough we have BP’s mis-information services team clouding the water, we don’t need to let the internet spew more crud into this thread.
[QUOTE=AyeCaptain;35760]Wait until someone starts digging into the e-mail that “Fabulous Fab” of Goldman Sachs sent to his mistress-thingy that said “Suck it, fishies and birdies” as he was bragging to mistress-thingy about how they had met huge bets against “the gulf of Mexico” (meaning BP) a few days BEFORE the blowout…
“One oil rig goes down and we’re going to be rolling in dough,” Mr. Tourre wrote in one email. “Suck it, fishies and birdies!”
http://www.surfingtheapocalypse.net/forum/index.php?id=237829
Of course, it’s just a co-inky-dense that Hayward sold lots of his BP stock, and GS was shorting BP stock, and Hallyburton bought Boots & Coots just a few days/weeks/month before all this happened.
The truth is starting to spew, just a “little leak” for right now, so don’t worry Tony…:
http://tickerforum.org/cgi-ticker/akcs-www?post=139406[/QUOTE]
Not to mention that this report first shows up in the comedy section of the HuffingtonPost…
[QUOTE=OldHondoHand;35762]I’d be real careful about using un-professional media sources, such as the myriad of bloggers that are out there. I spent some time looking at these sites and allegations, and the quotes you list are attributed to a comedian who said he was using satire.
Bad enough we have BP’s mis-information services team clouding the water, we don’t need to let the internet spew more crud into this thread.[/QUOTE]
ROV’s polished through the paint on two areas of the flex joint, 90 degrees apart. If we assume they cleaned paint off for attachment of magnetic based inclinometers, could this data be needed for the installation of the overshot tool? I don’t want to consider that the stack is moving…