Skybird |
06-16-08 05:51 PM |
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Originally Posted by TDK1044
The same is true for Anwar. By one federal estimate, the refuge holds more than 4 billion barrels of oil ready for the taking. The USA consumes roughly 20 million barrels of oil a day.
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4 billion (reservoir) divided by 20 million (consummation per day) is 200 days.
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The argument against drilling in Anwar has been the disruption to wildlife. Yet we're talking about drilling in an area the size of a large city, when the Anwar region is the size of three States.
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And we already have seen repeatedly what damage one tanker alone can do to an area as big as half a state. Biotopes are compley and sensitively balanced systems that do not need catastrophic impacts but small ticks to the baance in order to already disbalance the system. Now, I do not want to say anything pro or contra Anwar drilling, since I do not know it, I just want to show that your argument for Anwar is not really helpful.
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I think Americans have to ease up about things like not wanting to see oil rigs off the Florida coast as an excuse for not drilling there. If we want to continue to drive what we want when we want then there is a price to pay for that luxury.
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The problem is that oil fields are not being sucked empty until no drop is left, because there is a threshhold beyond which it is no more profitable for companies to suck out the oil from the earth. The less oil there is, the more difficult it becomes, and the more investements and technological efforts must be taken to win less and lesser oil. For many fields in the world, this treshhold level is around 30-50%. I am simplifying, but it is not that there are only subterranean caves filled with an ocean of liquid oil, only some part of an oil field is made of this. The greater part of the substance is stored inside sediments and porous rock holding it like a stone-sponge. you can imagine the difference when remembering the difference between drinking a glass of water with a straw, and needing to suck it out with effort from a piece of hard rubber-sponge, or needing to suck it out of a hard fruit. to get the most out of it, you sooner than later need technical kitchen helpers, fi you do not want to eat the fruit all together . When the most obvious reservoir of liquid oil is being sucked out, then it becomes difficult and less and lesser profitable to suck out the remaining oil hidden in the seidment and porous rock. Theoretically, there is plenty of oil left. but our economic system currently is not equipped for getting it, from an economical/financial perspective, because the investements are higher than the profits. That's the reason why many fields are given up when being depleted to around let's say 40-50%.
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