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25 comments on Can we get by with fossil fuels ?

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Ender on February 28, 2006 - 2:37am Permalink | Subthread | Parent | Comments top
The only reason I mentioned it is because of its connection with Clean Coal.  The impression that I get from Clean Coal advocates is that CO2 for EOR is a way of sequestering the CO2 from coal plants thereby reducing emissions.

From the responses

  1. you cannot guarantee that the CO2 is sequestered safely.

  2. As the CO2 is recycled there is not enough CO2 needed for offsetting the huge amounts of CO2 produced from power plants.

Sorry a bit off topic however it does go to the sustainable use of fossil fuels and clearly CO2 for EOR is not going to help.
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TJ on February 28, 2006 - 10:03am Permalink | Subthread | Parent | Comments top
That's not what they said.  They actually said that the gas will migrate and exit through a producer (well).  As HO said after the producer wells are shut down if there is a caprock on the field you've got centuries at least.  The fact that the gas can migrate thru the whole field is a good thing, it means most of the void space of the field is available for CO2 storage.
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Ender on February 28, 2006 - 9:42pm Permalink | Subthread | Parent | Comments top
TJ - however is this guaranteed sequestration?  It is not really no good if the CO2 just starts bubbling up after a few centuries.
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25 comments on Can we get by with fossil fuels ?

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