by SamInNebraska » Sun 03 Feb 2013, 19:48:42
$this->bbcode_second_pass_quote('pstarr', 'Y')ou have it backward Sam. Both Hubbert and Defreyess determine reserves under the production curve, which they arrive at with an incredibly complex calculus (in Hubbert's case) or pretty simple algerbra using Deffreyes linearization. There are other methods; mega-fields analysis and discovery/peak observation.
Hubbert has a figure which shows exactly what he did. And it includes reserves AND resources to calculate the peak production point. It is a quite famous figure if you aren't familiar with it. Cumulative production, reserves, and undiscovered resources (the worst kind!) and presto...you have the rate. I always thought the simplistic nature of it lent it credibility in a world of people using information mostly to hide, confuse and deceive.

$this->bbcode_second_pass_quote('pstarr', '
')Even if national/corporate oil entities were more truthful regarding their p59/p95 reserves, we'd still only have a vague idea as to when the oil will run out. That is why folks study production, reserves, economies, prices, and politics looking for clues. It is such an important subject.
It is. And why we need to discuss reserves and resources as well as production rate. The way Hubbert built that graph, you need them all.