by Tanada » Fri 03 Feb 2017, 10:04:24
$this->bbcode_second_pass_quote('Pops', 'R')on @ POB has said for a while that he thinks peak is right now, I think he said in the 12 months from last to next October. Ron is talking about peak oil, which is the same as saying maximum flow rate, in other words, inability to increase or even maintain production volume, suffice to say the point never again to be exceeded, as such it would be the highest level of extraction ever attained and never to be repeated, the apogee before the long road to happy motoring nadir, the pinnacle of the oil age, the zenith of ...
Ron's is the typical PO prediction: depletion + nowhere to drill = decline. That isn't dramatic enough to make for a good "Movie Treatment" though. Even if there were absolutely no new wells drilled and no reworking of old wells, none, decline would "only" be in the 3-4% range, (maybe a little more the first couple of years as the shales rapidly croaked). But even that isn't going to happen since supply constraint will return the price to the edge of affordability and enable some newer fields to be developed, infill wells drilled, old ones reworked, tar mined, wet gas tapped, yada yada.
EROI by most accounts is in the 12-18 to 1 to one range, not 2:1. Does anyone remember this chart?

There is very little difference in net energy between 100:1 and 10:1 efficiency. Maybe 8-9% less energy out? Considering we have built the current economy on ICE engines that, at the theoretical maximum efficiency, waste 65% of the stuff we put in the tank (much, much more in a 3/4 ton coffee cup hauler or '72 Eldo), I'm thinking we have a ways to fall yet.
I was looking for something else entirely and stumbled over this post from April 2015 and I think it is worthy of pointing out and reinforcing a couple of things.
Pops is dead on target when he says we Peakers have engaged in the silly fallacy that Peak Oil means we have run out of places to drill and depletion is eating away at production causing big drops in available oil day by month by year until everything falls apart.
The problem with those assumptions is blatantly obvious, the USA peaked in 1970-71 and quite literally thousands upon thousands of wells have been drilled here since that date, and a lot of them found oil nobody had discovered before peak. Another large segment were infill drilling and reworking projects like ROCKMAN does for his company that recovered a lot of oil that was discovered a long time ago but considered uneconomic to lift when prices were low.
We now know from the 2014-2016 price crash period that Fracking wells can keep lifting oil out of the formations at very cheap rates of return. How that worked is pretty much how it has always worked in the oil industry, finding the oil, completing the well and lifting the oil out of the well are all distinctly different processes.
Exploration budgets are at or near zero across most of the industry because at $50/bbl WTI contract price it just doesn't pay off in the long run to spend beau coup cash to explore for $90/bbl oil.
Drilling the well into the formation and putting the collection point in the pay zone is a second skill set, but you only engage in that if you have too, say to keep a lease or provide short term cash flow needs, if you can't sell the oil for more than it will cost you to drill and complete the well.
Completion in the case of fracking involves taking care of the really expensive part of a tight well, fracking the formation and installing the lifting equipment so you can get the oil out of the ground and send it off to market.
Actually lifting the oil out of the ground and sending it off to market is cheap compared to the rest of the steps.
So when a small Fracker goes bankrupt and their assets are auctioned off other companies buy the already producing wells cheap, and make a good income because they are only paying lifting cost on the wells that had a great deal of money invested in the first three phases.
Last but not least, about the graph of EROEI.
Keep in mind that every number on that graph was created by someone who wanted to prove something. If they did a study to find whatever that number was they had a confirmation bias to find what they wanted to find. Two examples, this graph says the EROEI on In Situe Bitumen production from the tar sands is only 60 percent the EROEI on surface mining. I call BS on that number because with In Situ production there are a wide range of methods ranging from steam flood to flame front dynamics, to dilutent flooding to probably a half dozen more methods. For surface mining you need large trucks and large excavators and a heating and washing plant and a tailings pile and a tailings pond and when you are finished you have to do land reclamation by law. That all takes a lot of energy. It seems likely to me they took the worst case scenario for in situ and assumed it was all done that way even though some of the methods are not that different than any other oil field development. The second problem with the graph is choosing two subsidized USA biofuels, Corn Ethanol and Soybean Oil, and treating them as if they are typical supplies for biofuels. They are not typical, even in the USA they are not the best return on investment for the product they yield and farmers would not be so eager to use those two sources if not for the crazy subsidies that exist in our system. There are literally dozens of plant species that yield more ethanol per acre than Corn and more oil per acre than Soybeans, but instead of going for the biggest return on investment our government went for the most popular with the lobbyists. Switching from corn ethanol to say white potato ethanol would more than triple the yield, and Potato is not the best yield by a long stretch. We could be encouraging farmers in Louisiana and Florida to grow beau coup sugar cane instead of Iowa and Nebraska farmers to grow corn. For oil yield we could be encouraging farmers to grow oil crops like Sunflower or Peanuts, both of which yield twice as much bio-oil per acre as Soybeans do. Heck even lowly Rice produces more oil than Soybean and if you really get extreme Castor Beans produce triple the yield.
Clearly we are not desperate for biofuel when we are using crops poorly suited to produce them instead of picking the most effective choices. Therefor we have no real way to judge the ultimate EROEI of biofuels until such time as we are using them in the most efficient manner we can, and that will not happen until we need them badly as substitute fuels.