[Terrapreta] Ice-age anyone? - RWL part 2.

[Robert Klein]

Since we are talking about shoving CO2 into geological traps, I have a couple of comments.

There is a lot of potential reservoir rock in the form of drained or to be drained natural gas reservoirs and even better in partially drained oil reservoirs which are typically much smaller.  The problem is that these reservoirs are usually a long way from the CO2 producers.  The first pilot is the lucky exception.

This can be overcome if we will it.  The cost will likely be no different than the cost of transporting the natural gas to market in the first place.  No one has really thought this all out yet as far as I know but I suspect that we could handily sequester industrial production CO2 at least in this way.

The trouble is is that it requires an international treaty to implement properly with no dodging allowed.

And I expect that the carbon demand of creating terra preta on a worldwide basis will actually turn this all upside down before this ever happens.

arclein


----- Original Message ----
From: Greg and April <gregandapril at earthlink.net>
To: still.thinking at computare.org; terra pretta group <terrapreta at bioenergylists.org>
Sent: Sunday, April 27, 2008 8:36:04 PM
Subject: Re: [Terrapreta] Ice-age anyone? - RWL part 2.

 
Hmmm.....
 
I have heard of this technology, but I 
always end up wondering just how effective and truly long lasting it 
is.
 
I may not agree with the theory of AGW, but 
if CO2 is the issue, I can't help but wonder about the 2 oxygen atoms 
attached to that carbon atom - they had to have come from somewhere, and the 
supply is not infinite.
 
Greg H.
 
----- Original Message ----- 
From: Duane Pendergast 
To: 'Greg and April' ; 'terra pretta group' 
Sent: Sunday, April 27, 2008 18:11
Subject: RE: [Terrapreta] Ice-age anyone?  - RWL part 2.

Just  plain compressed CO2 Greg. It’s not my gig, but there has been quite a lot of  R&D here in Albertato evaluate the  likelihood it will stay underground. Bill Gunter at Alberta Research Council  is one of the researchers taking a lead on this should you wish to do some  Googling.
 
Some of  it is to be used to help recover more oil. I was actually peripherally  involved in that aspect of it some 40 years ago. I understand most is simply  to be pumped underground to keep it out of the atmosphere. That’s why I  comment I’m glad to see a potential use for it as suggested by Peter  Read.
 
Personally, I have a  feeling that using it to produce char and build up the soil might be more  beneficial.
 
Sincerely,
 
Duane  Pendergast
 
-----Original  Message-----
From: terrapreta-bounces at bioenergylists.org  [mailto:terrapreta-bounces at bioenergylists.org] On Behalf Of Greg and April
Sent: April 27, 2008 10:58 AM
To: 'terra pretta group'
Subject: Re: [Terrapreta] Ice-age anyone?  - RWL part 2.
 
What form is  that CO2 going to be in when pumped underground, and what make you sure it's  going to stay there?
 
Greg  H.
 
----- Original Message ----- 
From:Duane Pendergast 
To:'Peter Read' ; 'terra pretta group' 
Sent:Sunday,  April 27, 2008 10:38
Subject:Re:  [Terrapreta] Ice-age anyone? - RWL part 2.
 
           Good points Peter. It’s good to see someone has identified a positive use  for that CO2 we Canadians are preparing to pump underground at great  expense.


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