Methane-Trapping Ice May Have Triggered Gulf Spill
sciencehabit writes with an excerpt from Science that begins: "Methane-trapping ice of the kind that has frustrated the first attempt to contain oil gushing offshore of Louisiana may have been a root cause of the blowout that started the spill in the first place, according to [UC Berkeley] professor Robert Bea, who has extensive access to BP p.l.c. documents on the incident. If methane hydrates are eventually implicated, the US oil and gas industry would have to tread even more lightly as it pushes farther and farther offshore in search of energy."
Yeah, so I'm trolling, wanna fight about it? But in all seriousness, this is why I'm against sudden rapid expansions of industry into sensitive environmental areas.
"Sorrow is better than laughter, for by sadness of face the heart is made glad." [Ecclesiastes 7:3]
Since these methane hydrates contain a significant amount of methane (i.e. natural gas), in the years since it was discovered that there are large deposits of them, they've periodically been touted as something we should actively drill for, as e.g. in this 1997 PopSci article.
10 PRINT CHR$(205.5+RND(1)); : GOTO 10
Depth, pressure.
Nerd rage is the funniest rage.
I wonder how they've avoided the problems up around Alaska or other places where it's actually cold enough for there to be ice - much less methane trapping ice.
StarTrekPhase2 - The Five Year Mission Continues!
Don't cha just gotta wonder with ocean floor earthquakes why we havn't have more natural oil spills in the ocean?
but if the risk of offshore drilling is so great why do we continue to do it? if it costs more to make alternative fuels, where is the breaking point where a disaster is more or less expensive? why are we still allowed to continue drilling offshore when known unknown conditions exist which have not been fully counter measured?
Good people go to bed earlier.
Sharks, which tend to stay relatively close to shore, eat the hydrates to power their lasers. This has caused the hydrates to be in relatively low concentration in shallower areas.
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Is there a correlation between the amount of methane hydrates and the distance from shore?
The correlation is between distance from shore and depth + temperature.
Here's some nice graphs showing depth vs temperature for methane hydrates
And here's a picture of seafloor depths for context
[Fuck Beta]
o0t!
Whats needed is a fully submersible drilling platform. Fortunately Ed Harris is still available.
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This one has more detail, and is actually really-well written. Really, an AP story with some investigative journalism. Kudos, guy, you're making your co-workers look bad. :)
My God, it's Full of Source!
OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
I worry about permanently assigning blame only once those responsible decide they're going to do nothing (or next to nothing) ala Exxon Valdez. Accidents happen, and unless BP acted in gross negligence, and unless they don't put much effort in to fixing the problem, I won't be worried about permanently affixing their name to it.
But ymmv, I'm not your spiritual leader.
The problem is we need oil and we need those companies to drill for it. Given that there are about 4000 oil rigs in the gulf, it is unrealistic to expect 0 accidents forever. When you say the government needs to step in and make industry take actions you are almost always on a very slippery surface. The devil is in the details. Can the accidents still happen even if those regulations are followed exactly? Unless those regulations require miracles then the answer is probably, and they just allow the industry to say "Hew, it's not our fault, we followed the government's safety rules exactly". Much better to require as we do now for the companies that own that oil to pay for the cleanup. What is needed is full enforcement of that, but my prediction is that after years of wrangling and lawsuits, BP will really only pay a fraction of the true cost.
Negative moral value of force outweighs the positive value of good intentions.
Clathrates require enormous pressures and very cold temperatures to remain stable. Warm them up to room temperature... and let's just say your gas tank won't be remaining whole very long.
Read up on the Paleocene-Eocene Thermal Maximum. The whole world was so warm, there was basically no ice anywhere on the surface (maybe some at extreme depths), and the Arctic Ocean was warm enough for alligators. One theory for why temperatures spiked so high has to do with a runaway positive feedback loop, where rising temperatures cause clathrates to melt out, which causes more heating.
So no, not just a drop in the bucket.
Cheers,
... if 1) we didn't massively subsidize the use of fossil fuels, and 2) the price of various forms of environmental devastation wasn't treated as an externality. Consider that the continental shelf is the property of the US government, and we have been and continue to lease the mineral rights to BP, et al, for way below market rates. And that we provide massive security services to various oil companies in the form of huge military commitments in the Middle East. And we provide an enormous interstate highway system, the cost of which is only partly offset by user fees such as tolls and gas taxes.
Also, consider that fossil fuel extractors and consumers are essentially paying nothing for the privilege of dumping huge amounts of greenhouse gases and other pollutants into the atmosphere, even though everyone is paying the cost in the form of climate disturbances, poor air quality, etc. And that when these major spills happen, the companies involved generally get off without paying significant damages (note that after years of litigation, Exxon ended up paying a tiny fraction of the total estimated damages from the Exxon Valdez spill - local fishing and tourism industries were left holding the bag).
Greener alternatives such as wind and solar could compete, if the true costs of fossil fuels were paid at the pump. But they're not.
And what if it turns out that, in fact, BP broke no regulations, bent no rules and this was simply something that nobody could have for-seen and no safety equipment on the planet could have withstood the pressure released from below the earth's surface? Would it be the Mother Nature spill?
Also, I don't think a lot of you appreciate the safety culture in an offshore environment for American companies. Safety is number one. Nobody wants to die on the job, nobody wants their actions to cause somebody else's death and no company wants to tell someody's loved one they died on the job. Safety is a very serious thing offshore - for employees and employers. Following procedures, regulations, safety protocols is paramount to everything else.
Have you ever considered piracy? You'd make a wonderful Dread Pirate Roberts.
The California seafloor leaks are much larger. I don't think they know exactly how much, but this source quotes "8-80 Exxon Valdez spills", I would guess they mean annually. That's somewhere between 86.4 and 864 million gallons.
They're talking about the total volume of oil residue contained in the down-stream sediments in the seabed, deposited over an unknown period of time. And it seems like they're talking equivalent pre-biodegraded volume, but I'm not sure.
The statement about the rate of seepage was slightly further down:
There is an oil spill everyday at Coal Oil Point (COP), the natural seeps off Santa Barbara, where 20-25 tons of oil have leaked from the seafloor each day for the last several hundred thousand years.
25 tons/day * 7.3 bbl/ton * 42 gal/bbl = 7665 gallons/day.
That's tiny compared to this spill at 200,000 gal/day.
The enemies of Democracy are
The good news is that there will be a charity concert in New Orleans, so BP won't have to pay so much money to their victims.
If it ends up like Vladez oil spill BP won't have to pay anything. More than 20 years later the fish have not recovered and the fishermen have not been compensated. Heck, oil still persists, is still found. Large corporations laugh while going to the bank to make another deposit while the people pay.
Falcon
Should there be a Law?
Sadly, BP should hope that things work out for it the way things worked out for ExxonMobile after the catastrophe of the Exxon Valdez.
Exxon had a drunk for a captain who crashed a poorly designed oil tanker causing one of the worst environmental disasters in history. The region's environment still has not recovered two decades later. But ExxonMobile sure has! ExxonMobile is the most profitable company in the world. From 2005-2009 the annual profit for ExxonMobile averaged $36 Billion!
The US Supreme Court was also generous enough a few years ago to reduce the punitive damages award against ExxonMobile for the Valdez from an original jury amount of $5 Billion down to $500 Million (about five days worth of profits).
For Pete's sake, the guy was saying we should stop oil production to force people to use non-existent renewable energy.
Ever hear of geothermal? Solar? Wind? They all exist. And if they were given as much in subsidies as coal, nuclear power, and petroleum they would be producing a lot more energy.
Falcon
Should there be a Law?
Siiiigghhh.. fish farming.. you know, as opposed to getting in your boat and going out to fish in the ocean then being surprised when one day there's no fish?
Oh that's what you mean? Like farmed fish don't need to be fed and don't know massive amounts of antibiotics. Except they do. Farmed fish requires vast amounts of wild caught fish to feed. Daniel Pauly "a professor of fisheries science at the University of British Columbia, has calculated that it takes 2 to 5 lbs. of anchovies, sardines, menhaden and the other oily fish that comprise fish meal to produce 1 lb. of farmed salmon". Because they are packed into small areas they also need those antibiotics, which end up in the ocean leading to antibiotic resistance. Fish farms also create dead zones.
Still think fish farming is the answer?
Falcon
Should there be a Law?
By weight or volume?
It's by volume, in units of standard cubic feet [1] of produced gas per barrel [2] of oil produced (i.e. after the gas has escaped).
[1] "standard" meaning "at standard temperature and pressure"
[2] 1 barrel = 42 US gallons
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