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It seems to ALWAYS be that there were tankers held in reserve to pump up the inventory numbers, so we can focus on that excuses instead of the fact that total imports are up over last year. Damn those pesky hidden tankers!!
It was announced that they would do this.
Here is the thread on peakoil.com
http://www.peakoil.com/fortopic28807-0-asc-270.html
They have a pretty good analysis each week.
Btw I don't think anyone expects the US to run low on oil until its in a serious bidding war with other wealthy countries for gasoline and oil. The problem right now is gasoline we seem for some reason to have allowed our gasoline stocks to drop dangerously low without bidding higher for imports. I think the reasonable glut in crude is a result of expectation that refinery utilization would be much higher than it is.
If you read back on the peakoil.com threads you would see that if we had been running our refineries at capacity we would not have a mini glut of oil like we do now. Next I suspect stocking up just in case there is a hurricane is also part of the issue. In any case the repeated inability to get our refinery utilization up is causing real problems in the market. We are seeing plenty of oil plenty of blending components but no gasoline. This means we will again have to bid on the world markets for gasoline imports leading to higher prices.
Outside of the unexpected deficiency in gasoline this summer I don't think anyone really expects the US to run out of oil or even run low this year and into next year. However I do expect us to be in a bidding war for real sometime next year. The problems this year are strictly related to refinery problems in the US. However the low gasoline stocks are a indication that we have to bid a fairly high price for gasoline imports this is a new event.
And finally the fact we can get gasoline for a price makes the OPEC claim of any sort of overall refinery capacity issue suspect since we have been able to get all the gasoline we want for a price without shortages occurring in the exporting countries. So looking beyond the local refining issues in the US we do see signs of peak oil caused by the relatively high bid price needed to attract gasoline imports. We should be at 4 bucks a gallon and importing gasoline like mad the fact we are not is setting the stage for possible shortages this summer esp if we don't get refinery utilization up soon. Especially if we have a hurricane that effects the refineries. This would force us to overbid in a sense on gasoline imports and could well lead to real shortages in gasoline if we actually have a shortage of refining capacity. Its worth watching.
The problem I have with your statements is that you, and you are not alone, fail to take into consideration the refinery upgrades that have been put into place over the last couple of years. There is a growing trend to 'cook' the oil thats left over after normal gasoline/diesel/jet fuel cracking to make yet more GDJ.
If we are squeezing another 6 gallons per barrel out at even half of our national refineries, then we need to utilize much LESS of our refinery capacity to produce the same amount of gas. This week is a perfect example of that concept.
Remember guys, 90%+ utilization is NOT normal, nor is it healthy! You will have a LOT of mechanical problems at that ratio. The only question I see today is how high will asphalt prices go.
Hmm we routinely hit 90+ in the summer months of peak demand.
So I don't think this is correct. I believe 93% or so is the norm during the summer driving season. In general you want to be at around 90% utilization if possible.
Next the coking is as far as I know for the heavy oils although I guess if you have one and are running light sweet you would also run a coker. I'd say configuring a coker for light sweet is fairly rare I'm not sure its even economical. The coker is to break up the asphaltenes in the heavier oil otherwise the yields would be much lower. Since we import a significant quantity of gasoline we can easily utilize all our refining capacity and still not meet demand.
You may want to read this to get a understanding of where a coker unit fits.
http://www.lloydminsterheavyoil.com/upgraderlaunch.htm
Notice they are using it only for heavy oils. The lighter grades can be cracked with other methods.
Finally this is Canadian refineries but you can see utilization above 90% is the norm not and exception as you claim.
http://www2.nrcan.gc.ca/es/erb/prb/english/View.asp?x=686&oid=1171
And last but not least you can google all this in a few minutes before you post so I don't have to debunk your statements.
And I guess you have not read my numerous posts on the increase use of cokers and the potential effect on asphalt prices.
If I recall, Robert stated that refinery utilization was in the mid 70's about 2 decades ago. So clearly it hasn't always been in the 90s as they have been these last few years. I guess 'normal' comes down to what time period we wish to define it by. I choose to look at trends that are just a 'tad' longer than 2 years or so :)
Memmel was correct.
http://tonto.eia.doe.gov/dnav/pet/hist/wpuleus34.htm
Utilization rates of over 90% are very common during the summer for the last 15 years. Its no where close to the mid 70's that you claim.
You're lucky RR is on vacation.
Where is the data for the years prior to 1991? 2 or so decades goes quite a bit further than you are letting us all onto.
http://dnr.louisiana.gov/sec/execdiv/techasmt/oil_gas/refineries/refinin...
Now, haven't we been through this subject before? Please, watch what you say :)
we added refinery capacity like crazy in the 70's when crude was $4/bbl and people thought crude demand worldwide would be 100 MMBD by now. Bad call. that left a ton of mangy capacity unable to compete once crude jumped up dramatically. That capacity remained operable, just utterly un-economic. They were units designed to make gobs of fuel oil for thermal electricity generation which made no sense once crude became expensive relative to coal or gas. Also their own energy efficiency was horrid as they were optimized for crude at $4/bbl. No payout for air preheaters, feed/effluent heat exchange etc at that low price.
No refiner will be happy with 70% op factor. They want to run full all the time as the last bbls are the most profitable since the fixed costs are already covered.
You claimed:
I presented you with eia data that shows 90%+ utilization is very much normal and has been for 15 years not the 2 years you claimed.
It is very clear that you were wrong.
I think there is a little disconnect here, Rethin. Perhaps you would care to actually READ the article that I linked? There is a wealth of information out there that shows we had far too much refinery capacity in the 70s and 80s. With the over capacity, margins were thinner, but a mechanical problem at one refinery wouldn't cause any systemic shortage of gasoline. What we find ourselves in today is a wonderful conundrum sponsored entirely by Big Oil's greed via shutting down a large number of our refineries in the past to shore up low profit margins.
So no, 90% is not 'normal' from an historical stand point. Perhaps its 'normal' in our Just-In-Time gas distribution system we now find ourselves in :)
You are clearly just trolling.
I don't understand why you think that, and I don't think that is fair at all. You seem to be the only person that is unwilling to acknowledge that we did utilize far less refinery capacity during peak months in the not so distant past. How sad that instead of examining the data for yourself you simply decide to engage in name calling.
nope. he's not trolling. You are clearly wrong.
Yes there was a period with a great deal of "operable" capacity that in truth never operated again. 70% OP factor is NOT in any way acceptable or normal. No refiner could make money like that. What you had was 12 MMBD of capacity that ran 85-95% of the time and another 5 MMBD in mothballs.
Hang on a sec here.
Perhaps you are confusing who's who here.
I, Rethin, am presenting evidence that 90+% utilization is normal and desired.
Partyguy, Troll, is claiming 70% is desired and the past 15 years of utilization rates are both unhealthy and not normal.
sorry. I'm with you 100% (well maybe with a 95% op factor) ) on this one. I question whether he's a troll though either. Pig headed I'll agree to ;).
lots of non technical people here with weird ideas of how the industry really works. And quite a bit of "don't confuse me with facts, my mind's made up".
By his comments here alone, I agree troll is a little bit of a harsh label.
But I think I know this guy by his MO. An old troll that went by the name hothgor. I suspect this isn't his only sock puppet either, but have no way of knowing for sure.
Also, reading though your comments I'm impressed with the depth of knowledge and experience you bring. Please don't be put off by the ignorance some of us show here (my self included unfortunatly). I'm sure I'm not alone in appreciating your input.
He is claiming this is normal its far from normal. 80-85% with burst above 90% is normal for most chemical plants. Most cannot even operate as low as 70% capacity the plant simply won't function correctly. I don't know about refineries in particular but I can't see them being much different from any other chemical plant I think they are fluidized bed reactors for their crackers from what I can tell these have to run at a certain load factor which is basically full or it does not function. The hydrogenation steps are also probably constrained to a load range. Cokers etc etc. It does not seem feasible to run a plant except at 80% plus capacity unless you take down a whole train.
we used to design for about a 60% min operating level when we could. Modern distillation equipment can do that. Some fixed bed reactors need enough flow to get a decent pressure drop to ensure everything spreads out -- don't want areas with no flow leading to coke balls etc. But you can keep gas recycle rates up at a cost in energy. I doubt there are very many fluid bed FCC's any more. They mostly used very short residence time reactor designs to maximize gasoline yield while minimizing gas yields. The regenerator side is still fluid but nothing keeps you from tweaking air rates up a shade. many plants have 3 X 50% pumps instead of 2 X 100% which makes turndown easier.
And I'll say again, the low op factors in the 80's came from many many ragged old plants not running at all and then being dismantled (see Wyden's list of dead refineries -- mangy old pieces of shit that were horrible neighbors, tiny tea kettles or just ancient and uneconomic). Those that were running were running with high op factors and throughputs as the refiners played "who will crack first and cut runs". The biggest and best never backed off (eg Chevron Pascagoula after their $1 billion revamp 1980-83). Terrible return on that capital, but with the costs suck, they ran full.
How far do you want to go back? 1600?
> seems to ALWAYS be that there were tankers held in reserve
I'm not really into conspiracy theories, but if, as RR has suggested, the peak coulda/shoulda been higher than 83 mbpd then is it possible that some "rogue" organization within OPEC is exporting oil on the side for their own private benefit? It could explain inventory conundrums.
Feel free to question the official number and don't believe the decimal places. I give them +/- 2mbd as my estimate of the accuracy. Nigeria and I'm sure Iraq export a reasonable amount of uncounted oil. In this case I believe the real numbers are probably higher than the official numbers. The down side is I suspect consumption in the producing countries is also higher than official numbers indicate. But you have to figure smuggling of finished products outside of countries that subsidize gasoline/diesel is big. Next people forget that in export land countries like KSA that are keeping exports constant are increasing production because internal demand is still increasing. Every day their spare capacity is eaten away.