<DrumBeat: July 20, 2009 The Oil Drum DrumBeat: July 21, 2009>

189 comments on Peak Oil Overview - July 2009

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dwcal on July 20, 2009 - 1:03pm Permalink | Subthread | Parent | Comments top

ERORI can be tricky. Much of the energy invested is electricity and natural gas, at least in refinery operations. Does declining EROEI result in relatively higher exploration and production costs, and is E&P more oil-intensive than refining?

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JonFreise on July 20, 2009 - 1:11pm Permalink | Subthread | Parent | Comments top

From the data I have seen the largest energy expense is the steel casing pipe. So I would say E&P is more coal and NG intensive than oil intensive. I don't know how the energy balance works out with deep water, hydro frac or heavy oil. Heavy oil is likely to be strongly NG biased.

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Gail the Actuary on July 20, 2009 - 1:12pm Permalink | Subthread | Parent | Comments top

Other questions:

If we effectively abandon some of our existing coal infrastructure, what does this do for EROI calculations? How many years can we expect new infrastructure to last (and therefore expect amortization over), in a world with less oil resources? Does Liebig's Law of the Minimum become effective early on?

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189 comments on Peak Oil Overview - July 2009

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