Reproduced at DieOff.org by Jay Hansen - Thanks! PDF version here
It's been almost 15 years since Colin J. Campbell and Jean H. Laherrère published this article in Scientific American. It was the first time I heard the phrase "peak oil" and the first I'd ever heard of M. K. Hubbert.
I'm not sure exactly the context of my reading the article. I did subscribe to SciAm at one point but I feel like I must have picked it up from a stand somewhere. '98 was prosperous for me personally and I wasn't in a particularly pessimistic frame of mind I don't think. I've always been what people today call a Prepper. Back in my folks's day having a garden and pantry wasn't anything unusual, I was a Mother Earth News, Whole Earth, Tree Hugging Guy.
I'm going to pull out some quotes from the article and try to see where they were correct and where they were of the mark.
Right off the bat on the first page they come to the point:
Our analysis of the discovery and
production of oil fields around the world
suggests that within the next decade, the
supply of conventional oil will be unable
to keep up with demand. This conclusion
contradicts the picture one gets from oil
industry reports, which boasted of 1,020
billion barrels of oil (Gbo) in “Proved”
reserves at the start of 1998. Dividing that
figure by the current production rate of
about 23.6 Gbo a year might suggest that
crude oil could remain plentiful and cheap
for 43 more years
This is exactly correct. This chart of EIA data (h/t WaPost) shows that output and capacity were on a collision course from all the way back in the eighties. From 2002 onward the squeeze increased pretty dramatically due to Chinese growth but regardless of the China boom the trend is clear.
Note: the forecast is for conventional "cheap" oil and this chart is for "all liquids".
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Reserves/demand growth
Unfortunately, this appraisal [43 years of supply] makes
three critical errors. First, it relies on dis-
torted estimates of reserves. A second
mistake is to pretend that production will
remain constant.
Reserve estimates are obviously central to the peak oil debate and most of the article discusses reserves. However, 80 percent of oil reserves are still under the control of national oil companies and as such are in no way audited by outside agencies – of course the 80% number itself is reliant on those same self-reported numbers.
At any rate, we are 15 years farther from the days when outside oil companies did have access to actual field data as opposed to PR pieces (before the nationalization wave of the 1970s) and there has been no increase in transparency.
--
Blood From a Turnip or It's The Flow, Stupid
Third and most impor-
tant, conventional wisdom erroneously
assumes that the last bucket of oil can be
pumped from the ground just as quickly
as the barrels of oil gushing from wells
today.
Point number 3 is especially relevant to where the MSM and Chamber of Commerce booster punditry finds itself today, which is in a word, gushing.
The current revelry around the miracle of hydraulic fracturing oil bearing shale was definitely not predicted in the article although the basins themselves had been mapped and the technique experimented with as far back as the late 70's.
But fracked wells are the perfect example of the "last barrel" in that quote. According to the The State of N Dakota Dept. Mineral Resources, there were 4791 producing wells in the Bakken region of N. Dakota in October 2012 with a daily production of 142 bbls/day average.
In this region of the Bakken,1810 wells – 37% – are less than a year old and 84% are less than 4 years old, yet the average production is only 142 bbls/day.
To give a comparison between the well flows of a pressurized reservoir (the old, cheap kind in a porous rock formation) and the flow from the tight oil wells of the Bakken where oil is trapped inside shale rock, you could take the Macondo well in the GOM that blew out a couple of years ago as an example. Although it was definitely not a cheap conventional oil well, it was estimated to have spewed 53,000 barrels per day.
142 barrels per day verses 53,000 barrels per day.
Or even more damning, as of 1995 the Saudi Arabia average oil well produced 6,000B/d.
As for the rest of the US, there are 500,000+ oil wells! Most of these wells have been producing for decades and are the declining dinosaurs of our heyday as the world's producer. The vast majority are "stripper wells" that are gradually dying and being put out of service as their output declines past profitability.
The average US oil well produces less than 10B/d.
So isn't 142 better than 10? Well, yeah but remember, those Bakken wells are brand new! They have such a steep decline curve they will join the rest of the US well at stripper status in a few short years.
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Getting back to the article...
As I mentioned, the main body of the article talks about reserves and forecasting using Hubbert's bell curve method. Estimating oil originally in place is the basis for creating that forecast. Much discussion of reporting is made (and has been since) but I won't go into that since nothing has really changed in that area that I know of except for wider accessibility through [urlhttp://www.jodidata.org/]JODI[/url].
--
Backdating.
To judge accurately how much oil explorers
will uncover in the future, one has
to backdate every revision to the year in
which the field was first discovered
I think this is misunderstood and not fully appreciated since oil companies seem to release a PR statement with every successful new well (which subsequently gets posted to PO.com)
Lets say you are wandering around in the woods and find a little "troop" of mushrooms. Not wanting to be overly optimist you say to your fellow wander, "there is probably a pound of mushrooms here!" But as you start collecting the 'shrooms, it turns out there are more than you thought; some under this little bush, behind that log, hidden in the grass. In the end you have 2 pounds of mushrooms all from the same little area. The question is, did you find a patch with 2 pounds of mushrooms or did you make 2 different discoveries, or 3 or 17?
Backdating production numbers to the year the discovery was originally made instead of declaring a "new" find with every successful expansion well or workover in a particular region gives a clearer picture of the size of the original find instead of the illusion of eternal growth...
Such growth is an illusion. About 80
percent of the oil produced today flows
from fields that were found before 1973,
and the great majority of them are declining.
Again this is important today because most "new" discoveries and technologies aren't new, only newly profitable.
I'll say that again, tight, deep, x-heavy, tar sands, etc are all in fields discovered in the past but that were not profitable while we had plenty of cheap oil to satisfy demand.
--
So now the money line…
once approximately 900
Gbo have been consumed, production
must soon begin to fall. Barring a global
recession, it seems most likely that world
production of conventional oil will peak
during the first decade of the 21st century.
Personally I'm not really so sure that it's that accurate to estimate even the amount used to this point but I'll go along, 1056 of regular/conventional oil consumed by '08 (from Campbell's newsletter #100) plus 27Gb/y for the last 4 is 1,164Gb total consumed. So they are off by about a third if the peak were today.
Perhaps surprisingly, that prediction
does not shift much even if our estimates
are a few hundred billion barrels high or
low. Craig Bond Hatfield of the University
of Toledo, for example, has conducted
his own analysis based on a 1991 estimate
by the U.S. Geological Survey of 1,550
Gbo remaining—55 percent higher than
our figure. Yet he similarly concludes that
the world will hit maximum oil production
within the next 15 years. John D.
Edwards of the University of Colorado
published last August one of the most
optimistic recent estimates of oil remaining:
2,036 Gbo. (Edwards concedes that
the industry has only a 5 percent chance
of attaining that very high goal.) Even so,
his calculations suggest that conventional
oil will top out in 2020.
It is clear that we haven't reached the decline phase of petroleum using the revised definition per the "oil" industry. Even using the old definition of crude oil plus well head condensate that the authors were using there is a definite uptick over the last year.
The last quote though I think is sobering. Even if they were off by 55% in their forecast the range of the peak only moves a few years (to about now) and if they were off by 100% the peak only moves down the road 5 more years.
But in 1998 the price of oil in 2011 dollars was $16.80 bbl. Last year the average price paid by US refiners was over $100bbl - a 600% increase in 15 years.
Using the title of the article as the gauge, I think it is pretty clear we have reached the end of "cheap oil", at least if the past 2 years of record high average prices is an indication.
--
There is a lot more to discuss about this little article; the effect of biofuels and even unconventional petroleum on accelerating the use of "cheap oil", drawing future production forward and causing a steeper decline later, the effect of the recession on the peak date, etc. Read again if you have already or read it for the first time and comment.
SciAm 1998: The End of Cheap Oil
http://www.texascenter.org/almanac/Ener ... CH7P2.HTML
http://www.theoildrum.com/node/2372
http://www.oilcrash.com/articles/how_much.htm
http://en.wikipedia.org/wiki/Deepwater_ ... _oil_spill
http://phys.org/news160906147.html
http://en.wikipedia.org/wiki/Saudi_Aramco
https://docs.google.com/viewer?url=http ... 200904.pdf
http://inflationdata.com/Inflation/Infl ... _Table.asp