3000 billion tons of coal off Norway's coastline

In case you missed this over at Energy Bulletin
This summer, students from Norwegian University of Science and Technology analyzed data from 600 wells drilled on the Norwegian Shelf of the North Sea. They calculated that there are 3000 billion tons of coal off the Norwegian coast. Most of the reserves are located at Haltenbanken. This compares to today's proven and recoverable world reserves of 900 billion tons of coal.
If we suppose a CTL yield of about 3 barrels/ton (Miller, Coal Energy Systems, p274), the 3 trillion tons of coal under the North Sea corresponds to about 9gb of liquid fuels.

Update [2006-1-6 19:51:50 by Stuart Staniford]: Oops - I meant to say 9 trillion barrels of liquid fuels, not nine billion (ie around 4 times as much as linearization suggests is available in conventional liquid hydrocarbons globally).

Ok, that coal is a little hard to get at. Railway tunnels under the North Sea? Right now they're thinking smaller than that:
"By injecting oxygen, we can ignite the coal where it is. This will produce a mix of gas which we can recover and use for energy-production. The problem however, is that one of the components of this gas mix will be the greenhouse gas CO2. We have to research a lot before we can utilize the resource in a way that doesn't harm the environment."
Still and all, it makes it clear that the 2050 problem is not having hydrocarbons to burn, it's what it's going to take to get them, what's going to happen to the economy in the meantime, and what it's going to do to the climate if we put that stuff out of our tailpipes.
At this point does it matter if they find 3000 trillion tons of coal??

==AC

Yes.

Its the same thing as realising that there are vast ammounts of deep sea oil in the 1950:s when the technology needed for exploiting it is nearly science fiction.

It makes it very clear that peak oil will not solve the global warming problems and more likely make them even worse.

It gives another degree of freedom for technological development and investment in engineering work to solve our energy needs. We quickly need to discover ways that both are doable and good enough for our environment.

"By injecting oxygen, we can ignite the coal where it is. This will produce a mix of gas which we can recover and use for energy-production. The problem however, is that one of the components of this gas mix will be the greenhouse gas CO2. We have to research a lot before we can utilize the resource in a way that doesn't harm the environment."

Cripes, this sounds to me like a terribly, terribly desperate way to harvest energy.

Look at the process of oxygen-blown coal gasification.  The similarities are remarkable, and the cold-gas efficiency can run 76% or more.
Just day-dreaming, but how about dissolving the coal and pumping it out? I'm not a chemist, and I don't know what coal dissolves in, but apparently ionic liquids can do the job:
Using a compound derived from a pine tree, chemists at New Jersey Institute of Technology (NJIT) have produced a new environmentally-friendly class of synthesized chemical compounds called chiral ionic liquids. These solvents are salts that are liquid at room temperatures, can be tailored to dissolve coal, crude oil, inks, plastics, DNA, and even rocks.Source
I wonder how they can call a compound that dissolves DNA and rocks "enivronmentally friendly".
This stuff really works:

http://www.driveupusa.com/

ah yes, i'm sure it does.

from the website:

"Why aren't the ingredients of your products listed on the label?

A. Since all of our ingredients are non-toxic, it is not required. The revolutionary formulas for Drive Up and Revive A Drive are protected under the Trade Secrecy Act."

well, if it's all the same to you, i won't be splashing it anywhere near lifeforms.  

DNA is soluble in water, so I'm not sure how the description as being capable of "dissovling DNA" indicates, in any way, whether a substance is environmentally friendly or not.
As an organic chemist, the real problem I see is containing the ionic liquids, as many I've seen in the literature are very water-sensitive. So the technology would have to involve someway of either making the ionic liquid water-stable, or finding other solvents for extraction (like other hydrocarbons or even fluorinated solvents.)  
I read the original article and was impressed by the huge estimated size of the offshore Norwegian coal deposits.  But what I have no knowledge of is the concensus regarding the feasibility of doing in situ deep-water coal gasification.

Has this ever been tried on a pilot scale?  How deep are these coal deposits?  How do you go about doing gasification from an off-shore rig?

I'm sure that some of the anti-peak oil people will cite this finding as proof that we have nothing to worry about, so what I'd like to know is what is the state of the are regarding  offshore coal gasification?

Anybody out there who can make me smart on this subject?

To my knowledge, off-shore in-situ gasification has never been tried.  To tell the truth, on-shore in-situ gasification has never been done on a large scale.  
These coal deposits are located in an area where the water depth is 3-400 meters AND 2-3000 meters below the sea floor (below the oil and gas reservoirs on Haltenbanken).

According to one of the scientists it will be quite a challenge to harvest this coal, if ever.

If or when the price of oil shoots up to €1000 per barrel they'll do it, they'll get the stuff out of the North Sea. A barrel of oil, as every oil drummer knows,  is equivalent to 42 liters, so if you have an economy car that consumes €4.2 liters / 100 km and whose fuel tank has a capacity of 42 liters, you will be able to drive 1000 km for 1000 euro. That may seem exorbitant but it's less than half the taxi fare from Frankfurt Airport to Frankfurt city centre (9km, costs between €20 and €30) Even if you factor in depreciation costs, taxation etc, taking a taxi today in Germany is cheaper than driving a Twingo after the big enchilada. People will pay almost anything to drive a car rather than walk, cycle or use public transport. After all, even today they pay almost anything to take a taxi.

Yes, every oil drummer knows that 1 barrel has been, is and will hopefully remain 159 liters.

What will be the effects from € 1000 a barrel of oil, and how far into the future are we talking here?

A barrel of oil, as every oil drummer knows,  is equivalent to 42 liters
A barrel of crude oil or other petroleum product (abbreviated bbl) is 42 US gallons (158.97 litres)
I should point out that oil expands and contracts base on its temperature.
In other words, the fate of the earth may depend on whether we can grow biofuels for less than €1000 per barrel, or whatever it may cost to extract this coal from the North Sea.
Oops! Third sentence from last should of course read:

"... taking a taxi today in Germany is more expensive than driving a Twingo after the big enchilada."

Stuart,

3 trillion tons of coal equals 9 billion barrels of oil equivalent.  Did you misplace a few zeroes?  Sounds more like 9 trillion barrels  to me.

Typo - you are correct.
Isn't it 9 tera-bbls, not 9 giga-bbls?
Somebody beat me to it.  Thanks.
Assuming using CTL process, how should it be applied in situ 2-3 000 meters below the seafloor? This makes "Man on the Moon" projects look easy.
I'm no expert on tunneling, but isn't that feasible? The world's longest tunnels are 50km+ already. Norwegians are already past masters at this. If prices get high enough, it seems like it's just a matter of doing it, no? HO?
Yes, the Norwegians are masters at tunelling, but still we are here talking at depths below the sea level of 2 500 - 3 000 meters. From your post Stuart you may have noted that as of now the greatest depth below sea level tunelling has been done, as of now is approximately 300 meters.

No doubt that the tunells would be running 10's or perhaps 100's of kilometers.

Then you have to circulate huge amounts of air, pumping out massive amounts of water as it should be expected a continuous flow from the ocean above.

How many tunells would be needed to move coal that could satisfy a CTL plant of say 10 mb/d?

Where should the solid residuals be deposited? Someone in a Norwegian blogg proposed that one of the largest valleys in Norway, Gudbrandsdalen, could be used to dispose of the solids.

On the other hand the potential of 9 Tb of liquid fuels in a future with expected huge liquid deficits and thus spiralling prices could make many, and not only investors interested.

It could be an interesting exercise to try to estimate the EROEI for such a project.

I can feel a techie talk twitching at the edge of my senses.  Tunneling at that depth may or not be a problem, depending on the strength of the rock in the area.  The Homestake mine in Lead, S. Dakota, for example was down at around 8,000 ft and there are mines in South Africa that, I believe, went deeper (the record is around 3,500 m).  However the rock down at that depth is quite strong in those mines.  Around coal the rock is usually much weaker and is likely to fragment violently as the holes are generated.  (In Wales and PA the resulting flow is very much like a liquid even though it is actually pulverized coal). Even with the hard rock the pressures can exceed its strength so that it fails violently in what is known as a rock burst.  Keeping holes open then becomes a quite difficult problem, whether you are doing in-situ combustion (not nearly as easy as you may at first think), in-situ liquifaction or some form of mining.  Of the options the mining - done remotely and intelligently - might be the best option with a strategy of controlled collapse and collection.
HO,

Thanks for bringing some common sense to this thread.  Theoretically anything is possible, but many things are not commercially practical.  This seems to be one of them.  It takes someone with engineering expertise to point out what the critical hurdles would be.  It is the same real world issue as getting oil out of tar sands, or methane from deep sea.  People can imagine how to do it, and maybe even prove the concept but doing it as a business, with positive economic and energy return 24/7 is a stretch for me.

What puzzles me is why we spend so much energy and technology trying to making deep sea coal work.  Why not spend the energy, human capital and time capturing sunlight, wind, waste energy, etc.  Maximize energy efficiency, building design, transportation, etc. so they need less energy.  All those areas are under funded, have great potential and are ultimately more sustainable.

Excellent question.  Is this a phenomenon of the energy specialists doing what they know (since most energy is fossil these days), taking the easy path (powering vehicles from coal takes a CTL plant, which is one new step; powering vehicles from wind and solar requires the production plus electric vehicles, which is two steps), or something else?
I think it's more a case of a bunch of technical people having fun with an interesting new idea to think about than a statement of policy, or that it's actually a good idea to burn all that coal, could we figure out a way to do so.
Well, in West Virginia we blow off the tops of mountains, fill in the valleys with the scrap, and take out the coal.  So what would be the analogy here?  Maybe we could drill a nuke down below it, blow it up, and then dig up the loose stuff that comes up.  Sigh - I fear whatever scheme is dreamed up, it will be an environmental disaster.  
The coal deposits mentioned on Haltenbanken are located at 3-400 meters water depth and below 2 000-2 500 meters of solid rock (that is a total of 2 500 - 3000 meters below sea level).

To use nukes could probably result in fuels suitable for not still invented hybrid nuclear/coal power plants. :-)

They (the coal deposits) may as well be on the moon.

Does anyone remember the fresh water solution proposed about 20 years ago for NYC? Something about towing an iceberg south...

"As of 2003 the deepest mine is the East Rand mine at 3585 meters"

"Many problems arise when digging so deep into the Earth. The most obvious is the heat. For example, at 5 km the temperature reaches 70 degrees Celsius(158 degrees Fahrenheit) and therefore massive cooling equipment is needed to allow workers to survive at such depths. Another problem is the weight of the rock. For example, at 3.5 km the pressure of rocks above you is 9,500 tones per meter squared, or about 920 times normal atmospheric pressure. When rock is removed through mining this pressure triples in the surrounding rock. This effect coupled with the cooling of the rock causes a phenomenon known as rock bursts, which accounts for many of the 250 deaths in South African mines every year."

http://hypertextbook.com/facts/2003/YefimCavalier.shtml

For those of us who are not metric inclined.. ;)

"3580 meters = ~2.2 miles"

http://convert.french-property.co.uk/

I would add that there's also the pressure of the overlying ocean to consider that must be factored too.
Well from the sounds of it if the Norwegians do manage to get it out they will be considering the CO2 problem, sequestration maybe? Better this occur in Norway than American, dont you think?

I doubt we will see this project starting before 2030, if ever. But still nice to know there is something which we could draw on in the future. Maybe put it to more constructive use than we do now.

What kind of gas do they expect to be getting from underground combustion?  CO?  Certainly they don't want CO2.
If feasible, let's go for it--developing that coal (as CTL). That should improve the climate change outlook considerably.
I will try and find the link but not at home now - if memory serves, there was a 2001 paper that showed the total greenhouse gas emissions from CTL compared to an equivalent amount of crude oil was just over 2-1.
The truly great tragedy that is going to befall us in the 21st century is that our ever more desperate efforts to continue feeding our addiction, rather than abating it it, will result in escalating destruction of the environment ---and at the end we will still be left wtih the need to come off it, except that all possibility of doing so gently and comfortably will have been destroyed.

The reason for this is that while the substance we are addicted to is finite, there many different substitutes available, ever more highly priced and with ever worse side effects. If there were only oil, and all knew that when it is gone it is gone, it would be easier.

I am an expert in this area. It's why I keep my refrigerator empty at night, why there is no food in the pantry, why my wife doesn't bother even trying to hide food---she knows I will find it. We are doomed.


It almost sounds easier to go and fetch methane from Triton.

Never say never though.  I fear that people will figure out a way to build offshore platforms to exploit this.

it was rather disturbing to read this when it first came out on EB.  i fear that this discovery will go the way of methane hydrates: technologically unlikely, environmentally disasterous, and prohibitively expensive.  another false hope.  
Hi I've been reading for a
few months and was just
inspired to create an
account.

In addition to tunneling, or
trying to change the state
of the coal, there might be
another alternative.

Couldn't they consult with
the Duch on constructing a
circular dyke on the area
they want to mine?

I suppose the water might be
too deep but this seems like
it might be an atractive
idea.  If they can adjust
the buoyancy of the dyke
they could potentially move
it around to new sites.

Crazy or so crazy it just
might work?

That would be an impressive construction project. The worlds' highest dam, Rogun in Tajikistan, is 335m.
The structure you want to build is called a "cofferdam."

And you are correct: the water is too deep. Cofferdams are not feasible at the depths we're talking about here.