chris med
No REDTIDE IN PANAMA
Registered: 10/23/05
Posts: 23144
Loc: East Lyme
oh believe me I'm not getting into a pissing match and didn't take it that way,.........I'm with you on the whole friggin mess,...sickening.....and Like i've said,...they can put a man on the moon but they can't stop this??????? Seems awfully fuked up,..and is truely,.......awfully sad.....I think about them every morning I wake up.......
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Bp began drillinga relief well not too long ago. If a relief well was the only viable solution to the problem why would BP have begun drilling one at the beginning of this while simultaneously trying other approaches?
Canada requires relief wells for drilling. BP, as recently as March, protested this regulation there as being an unnecessary aversion to a situtation similar to what we are currently seeing. The reasoning was that all of the safety systems on the rigs should be adequate enough to prevent this type of thing. The overlooked part of this is the human error factor.
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C'mon M.C., working on oil and gas wells gives you a view that no one else has and helps answer questions on this thread. Dropping off of the topic doesn't help. People are interested in what you have to say.
#1218419 - 06/04/1012:38 AM
Re: Oil rig explosion
[Re: RedfishCT]
M.C. Niantic
Member
Registered: 06/21/05
Posts: 2411
Sorry Buck, I'm frustrated by this mess. My first thoughts were those guys missing are dead, no doubt about it, then I can't believe they lost the whole rig.After that I can't believe they had no good backup plan to stop the flow. Nobodys talking about what happened to cause this because of liability.Even when they do there will be some spin on it. Basically blowouts are caused by not controling the pressure of the gas you drilled into. This is done by the drilling fluid (mud) that contains ground up barite to make it heavy.This wt, is varied to meet the demands. Last resort is the blowout preventor which will seal off the casing even with the drilling pipe still in the hole. This certainly isn't the first time one has failed. The first line of defense against a blowout is to anticipate a possible gas reservoir be fore you hit it.This was one of my jobs.I would draw the charts of the rock strata and plot the gas if any. This data came from the rock chips pumped back up and sepparated from the drilling mud as well as gas samples from the same mud run through a gas chromatigraph. This would show all the different gases. I would also plot the specific gravity of the shale which normaly increases with depth. If youre near gas the sp. gr. starts a reverse trend showing its getting lighter and more porous. The gas ppm will start to go off the charts and its time to weight up the mud. If you don't the fluid starts rising at the drilling floor and things get a little hairy. Sometimes a blowout is triggered when you pull the entire drill string to change the drill bit if you don't keep the hole completly full.Nobody wants a blowout, the pressure can push the drill pipe out of the hole and smash into the top of the derrick and its not long before the big diesel engines set the gas on fire. Nobody wants to die and nobody wants to loose many millions of dollars in equipment. This is what I did in the mid 70's.People will never look at drilling the same after this. As for the future of enery, thats another topic. I think we need a miracle there. Oh yeah, that top shot to me was just a pr stunt.I didn't think it had a chance of working, wish I was wrong.Also I think I heard this well was completed and they lost control trying to cap it, not sure.
M.C., thanks, that is the first time I have heard an explanation of what went wrong. I did not know whether it was a blowout or a failure in the rig or super structure. Nothing was ever explained. I am still astonished that there is nothing to cap a well with after a disaster like this. You would think there would be some kind of concerete dome or something that would cut off the flow immediately. That could potentially cap the blowout and save lives. How can a design like the one BP used here get passed by the Interior Department who signs off on the technology? What should the technology be to cap a blowout?
and didn't take it that way,.........I'm with you on the whole friggin mess,...sickening.....and Like i've said,...they can put a man on the moon but they can't stop this??????? Seems awfully fuked up,..and is truely,.......awfully sad.....I think about them every morning I wake up.......
you do........ 
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