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PeakOil is You

PeakOil is You

Peak oil theory debunked (merged) Pt. 3

General discussions of the systemic, societal and civilisational effects of depletion.

Re: Peak Oil Debunked was right

Unread postby meemoe_uk » Mon 04 Feb 2013, 16:53:19

Willis doesn't mention kerogen in his article. He mentions that oil has been labeled unconventional due to it being extracted with horizontal drilling rather than vertical, or being shale oil. Neither of these are kerogen.
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Re: Peak Oil Debunked was right

Unread postby Dybbuk » Mon 04 Feb 2013, 20:28:06

As someone with a statistics background, it seems like the mistake Hubbert made was in thinking he knew the right shape of the curve for worldwide production. Just because individual wells and fields take on a logistic shape, doesn't mean that worldwide production would.

That being said, he was way ahead of his time for the simple reason that he acknowledged that there would even be a production peak, when that was an alien concept to pretty much everyone else. You can quibble about the details that he may have gotten wrong, but faulting him for not having perfect foresight is like expecting him to know who would win every World Series for the next 50 years.

As to this argument about whether peak oil is "about" price or about production rates...it seems to me that the basic concept is about production rates. But the whole reason that peak oil is even a topic worth discussing is the impacts that it will have, and price is the main direct visible impact. Lower production leads to more scarcity which leads to higher prices, which in turn leads to every other unfortunate effect. So watching prices is sort of a shortcut for watching the possible peak and decline of production. If A leads to B, and B is what you really care about, no need to pay too much attention to A when B is right in front of you.
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Re: Peak Oil Debunked was right

Unread postby ennui2 » Tue 05 Feb 2013, 01:04:00

"watching prices is sort of a shortcut for watching the possible peak and decline of production."

Which is in itself an oversimplification, due to the impact of oil-speculation, which was a major factor in the spike of 2008, something that, to this day, peak-oilers (like pstarr) have a hard time accepting.

Suddenly we have creative notions of what peak-oil really is, and before you know it, catch-phrases like "peak-oil caused the credit crisis" get thrown around, and it all just paints a picture of peak-oil as a cult rather than based in science as it was originally (under Hubbert).

And since it IS based on science, that science needs to be held up to scrutiny rather than merely accepted as dogma. Even Newton's theories had to be reviewed when Relativity came around.

Likewise, Hubbert didn't know about fracking or the way we're going about the horizontal drilling and tar-sands stuff as we're doing it in the 21st century. His theories were based on conventional oil. While it's true that the unconventional stuff has lower EROEI, it seems to me that it's quite a bit higher than peak-oilers would like to admit, and flow-rates fast enough to act as a backstop for a while. How long is anyone's guess, but Hubbert's curve is really playing out more like an effective plateau as far as total available liquids and while it isn't allowing the world economy to return to the glory days of the late 90s, it is at least keeping Mad Max twiddling his thumbs.
"If the oil price crosses above the Etp maximum oil price curve within the next month, I will leave the forum." --SumYunGai (9/21/2016)
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Re: Peak Oil Debunked was right

Unread postby dorlomin » Tue 05 Feb 2013, 06:28:13

$this->bbcode_second_pass_quote('ennui2', 'L')ikewise, Hubbert didn't know about fracking or the way we're going about the horizontal drilling and tar-sands stuff as we're doing it in the 21st century. His theories were based on conventional oil.
He new about bitumen sands, coal to liquid and ethanol. His forecast was for conventional reservoirs. It still holds relatively true for that.

In the 80s there was a contraction in demand that followed the price spike. This crashed the price. Another such event, when it happens, will wipe out many of these non conventional sources for a while. They are merely replacing cheap energy with expensive energy. And when we enhance efficiencies they will become uneconomic (for a while).

The saw toothing of price is long predicted. Up and down, wildley.
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Re: Peak Oil Debunked was right

Unread postby dissident » Tue 05 Feb 2013, 10:29:36

$this->bbcode_second_pass_quote('Dybbuk', 'A')s someone with a statistics background, it seems like the mistake Hubbert made was in thinking he knew the right shape of the curve for worldwide production. Just because individual wells and fields take on a logistic shape, doesn't mean that worldwide production would.


It's not such a bad assumption if you consider the Central Limit Theorem:

$this->bbcode_second_pass_quote('', 't')he mean of a sufficiently large number of independent random variables, each with finite mean and variance, will be approximately normally distributed


in this case the variables are individual oil fields which clearly exhibit a lifetime mean and whose production curve is like a distribution around this mean. And the different oil fields are independent variables since the production curve of one does does not depend on another. So the CLT basically states that the individual distribution of the oil fields averages out to a Gaussian for the global average.

However, there is a wrinkle in applying the CLT and that is that the oil fields are not producing at the same time. So it is possible to skew the global production curve for example by having a forced extraction regime at later stages brought on by demand. So I doubt the all-time world oil production curve will be symmetric around the peak. In order for that to occur the demand would have to fall after the peak symmetric with its increase before the peak. But instead the demand is increasing with time.

I also suspect that the production plateau we are on right now is evidence of the skew. The future production tail is being brought forward in time as every barrel of oil is brought to market as soon as possible. They didn't start extracting Ghawar at its maximal rate when they discovered it 70 years ago.
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Re: Peak Oil Debunked was right

Unread postby Dybbuk » Tue 05 Feb 2013, 21:29:53

$this->bbcode_second_pass_quote('dissident', 'I')t's not such a bad assumption if you consider the Central Limit Theorem


Actually, I don't think the Central Limit Theorem is applicable here. CLT is for random variables and probability distributions. The curve that Hubbert was talking about is a time series. That's a completely different animal.

Maybe some kind of CLT-like phenomenon could apply to time series too, but it would require a lot of conditions, and I don't think oil production could possibly meet all the conditions, since the component series are all of very different sizes and not at all independent of one another.
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Re: Peak Oil Debunked was right

Unread postby dissident » Thu 07 Feb 2013, 10:25:32

http://www.math.duke.edu/~wka/math135/central.pdf

In the above proof of the CLT it is clear that there is no restriction of the sort you are claiming. It is irrelevant that oil field production curves are time series. At the end of the day they can be treated as distributions since the math does not care where the distributions come from as long as they don't have infinite tails.

http://math.uchicago.edu/~may/VIGRE/VIG ... okhmal.pdf

$this->bbcode_second_pass_quote('', 'A') random variable is a function X that assigns a rule of correspondence for every point z in the sample space S (called the domain) a unique real value X(z).


Obviously any real function that has characteristics similar to a distribution fits this definition. Oil field production functions don't look like 1/x or exp(x) so there is no restriction on using them with the CLT.
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Re: Peak Oil Debunked was right

Unread postby Xyricolev » Sat 09 Feb 2013, 10:13:16

Of course POdebunked was right JD...was there ever really any doubt?

The *reason* it was right was that you took the (quite logical, sensible) position of NOT trying to refute that a finite resource is finite, and if used (at all) will eventually run out, but rather, stuck with the notion of poking fun at all the end of dayz hysterics that sites like these hype hand in hand with the fairly innocuous math.

Kudos! (ps: I never went back to see...you went on the doomer diet for a while, right? How'd that go?)

-=Xyr=-
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Re: Peak Oil Debunked was right

Unread postby Buddy_J » Sat 09 Feb 2013, 23:16:55

So...if I understand, peak price in 2008 wasn't really peak price because of speculators in the short term?

http://thinkprogress.org/climate/2011/0 ... ?mobile=nc

Still, some seem to have attached quite a bit of importance to peak price, price appears to be synonymous with peak oil itself. So does that mean it isn't peak anymore when price goes down?
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Re: Peak Oil Debunked was right

Unread postby Xyricolev » Sun 10 Feb 2013, 07:31:22

Nahhh Buddy, you got it all wrong...see, Peak Price DID happen in 2008 (if it's convenient to the doomer argument of the moment).

If it's not, then today's sub $96 price is a "record high" and we will write the 2008 peak off as unimportant "because of teh speculation" (if THAT fits the doomer argument of the moment).

In other words...it's important only if it can be used to "prove" you wrong if you don't buy into the Doomer Mythology Deluxe Package (tm).

See how it works? :)

(we now return you to your regularly scheduled doomer hysteria)

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Re: Peak Oil Debunked was right

Unread postby Xyricolev » Sun 10 Feb 2013, 14:54:16

Okay troll...I'll give it a shot.

Price is a function of supply and demand. At any given moment, there are numerous factors impacting both.

During the runup of the price shown in the graph, a number of things were happening, including:

1) an enormous asset bubble, worldwide that was hyperinflating demand for everything (including dollars, which oil is priced in), and overheating most of the world's economies. That stopped rather abruptly in december, 2007.

2) oil supplies were somewhat constructed due to war and instability in oil producing regions (some caused by us, and some not)

3) the effect of speculators being allowed to play in the market not unlike they did during the days of the robber barons

4) the enormous growth of China/India and their increasing demand for oil

and a few others besides (but painting with a broad brush, that outlines the greater bulk of the factors acting to drive price up...supply interacting with demand in entirely predictable ways)

Predictably, when world credit markets froze up, demand dropped sharply, and (gasp!) oddly enough, the price of oil plummeted--you didn't see it drop back to $20 a barrel because of the constricted supply and the addition of new, large players to what had mostly been a western + Japan game (China/India).

this is neither mysterious or rocket science, tho I understand why you struggle with it. Do you need a tutor?
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Re: Peak Oil Debunked was right

Unread postby dorlomin » Sun 10 Feb 2013, 15:22:16

$this->bbcode_second_pass_quote('Xyricolev', '
')2) oil supplies were somewhat constructed due to war and instability in oil producing regions (some caused by us, and some not)
What, so oil supplies suddenly became 'constructed' in 2008 compared with what, the Iraq adventure of the previous few years, or the Libya crisis of two years ago?

Then they became 'unconstructed' or is it 'deconstructed'? 8)

US and EU oil demand is falling. And yet we have prices of well above $100 for Brent.
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Re: Peak Oil Debunked was right

Unread postby Xyricolev » Sun 10 Feb 2013, 15:25:04

right...the only difference being, I don't see end of the world scenarios at the end of the train ride...that's what makes me a "cornie" innit?

See...I get it. I follow the chain of logic, and yes...I accept the completely innocuous idea that a finite resource, when used, will eventually run out.

I just don't see a zombie apocalypse at the end, and for that, I must be branded "teh enemy!!!" right? cos that's what your programming dictates, don't it?

PS to dorlomin...re-read what I wrote...you can see the rise in price clearly on the chart...supplies were becoming constricted all during that period...nothing magically happened to change that in 2008...the reason for the big drop then and there had everything to do with the sudden demand destruction brought about by the...you know...Great Recession? Second largest economic calalmity in world history...or did you miss it? :)
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Re: Peak Oil Debunked was right

Unread postby dorlomin » Sun 10 Feb 2013, 15:53:32

$this->bbcode_second_pass_quote('Xyricolev', 'r')ight...the only difference being, I don't see end of the world scenarios at the end of the train ride...that's what makes me a "cornie" innit?

See...I get it. I follow the chain of logic, and yes...I accept the completely innocuous idea that a finite resource, when used, will eventually run out.

I just don't see a zombie apocalypse at the end, and for that, I must be branded "teh enemy!!!" right? cos that's what your programming dictates, don't it?

PS to dorlomin...re-read what I wrote...you can see the rise in price clearly on the chart...$this->bbcode_second_pass_quote('', 's')upplies were becoming constricted all during that period
Laughing laughing.
Where is your abundance.

'Constructed' supplies cause price spike. No sh*t Sherlock. Hence why even with anemic growth and falling demand in the EU and US we have oil over $100.

$this->bbcode_second_pass_quote('', 't')he reason for the big drop then and there had everything to do with the sudden demand destruction
And the return to prices well above $90? Prices that meant resources like tight shales could be mined profitably.

$this->bbcode_second_pass_quote('', 'S')econd largest economic calalmity in world history.
:mrgreen: And here we are. Above $100 for Brent.

:mrgreen:

Why are prices so high if supply is at a record ? 8)
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Re: Peak Oil Debunked was right

Unread postby Xyricolev » Sun 10 Feb 2013, 16:14:21

Because....supply is only half the equation?

Seriously, if you have to ask the question, you prolly ought not be participating in the discussion.

Are you ACTULLY trying to argue that production didn't shatter the old record? Seriously? Are we getting ready to dive head first into one of the global conspiracy theories then?
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