by SamInNebraska » Mon 22 Jul 2013, 10:43:58
$this->bbcode_second_pass_quote('C8', 'S')o what is a definition of PO?
Now THAT is the question. Once upon a time it was simple. And then simple stopped working, and suddenly PO has now become a buzzword for mad max beyond thunderdome, financial hooliganism, collapse (itself defined vaguely as...high unemployment), credit issues, you name it.
Because of this, the instant anyone asks "what is PO?" you must immediately reply, "what is your definition of PO?" Then you must ask what KIND of oil they are talking about, oil of this density or that, under this property or that, under ice or not, because peak is now a mix of only the combinations only the claimant is familiar with. If it has contaminants, oops, we don't count that oil, unless it sits under some other kind of property, in which case sure we'll count it.
Seems a bit weird but this has happened when peak oil was tortured into plateau oil, peak oil and decline became "fastest increasing oil production in countries history", and the last "peak plateau" (another new concept!) became yet another "peak plateau" in the past year or so, it is worse than confusing.
$this->bbcode_second_pass_quote('C8', '
')to me it can still only be when half of all the extractable oil in the ground has been removed- and I can't see how anybody can call this point when tech, demand, alt energy sources, etc. are always changing.
Tech, demand, alt energy sources, etc does not change the amount of oil available for human use. It only changes the amount which can be recovered from a uncertain, but finite, and absolute, amount.
So 50% extractable? The last recovery factors mentioned on a global scale by K. King of Exxon Mobil demonstrated at an Oslo conference a few years back showed about 25-30% recovery using IHS data. N. Saleri has indicated that each additional 10% of recovery change is worth 1 trillion barrels.
So call it 2 trillion more barrels of oil to recover from EXISTING fields, and it should be noted that this has nothing to do with the other items quantified by IEA of things which oil can be manufactured from, such as tar sands and whatnot.
That distinction matters because as the Canadians demonstrate to the tune of millions of barrels a day, manufacturing crude oil is becoming all the rage, and over time will continue to negate the distinctions without a difference among the "my oil is better than yours because it is light, or not as light, or sorta light" brigades.
So what really matters? I would suggest EROEI only, not PO. EROEI applies to
forms of energy and is greatly affected by technology and depletion. It is hard and quantifiable, you can compare it and measure it. The idea of PO just seems to confuse thinking.[/quote]
I think Rockman has been pretty definitive on the value to industry of EROEI.