Tuesday, June 03, 2008

Alberta carbon sequestor program.

There is no public plan put forward on Alberta's program. There is however information available about what one may reasonably expect.


“CO2 will be injected at depths below 0.8 km (2600 feet). CO2 increases in density with depth and becomes a supercritical fluid below 0.8 km. Supercritical fluids take up much less space than gases, as shown in this figure, and diffuse better than either gases or ordinary liquids through the tiny pore spaces in storage rocks. The blue numbers in this figure show the volume of CO2 at each depth compared to a volume of 100 at the surface.”

Source:

Carbon stored at marginal depths create problems where carbon dioxide will stay down at one temperature but not another. In this case the carbon dioxide flooded a valley killing thousands.



And finally the CBC document summary on the Weyburn Co2 Sequester experiment:
The conclusion of the study will be an assessment of the integrity of the reservoir and its
ability to store CO2 over the longer-term. The risk analysis will evaluate the potential for
leakage, migration paths this leakage may take and future land-use changes that may
impact on reservoir integrity.
Nothing is solid or fixed!

One thing I have heard nothing about which, seems obvious to me is a pro active use of the carbon dioxide by injecting into the very deep aquifer that is not potable. Indeed, it is outright poison with no chance of redemption. I see no reason why pressurizing that aquifer would not make this water available to the oil industry rather than using our drinking water the way they are.
The last time I enquired into this was about 8 years ago having to do with the water use at and near Drayton Valley by the oil industry. It was explained to me the deep water would work fine but, it is too expensive to bring up to a point they can use it.

If the industry plays at this it will serve no other purpose than to rip off more cash. Because it is public funded by the taxpayer we should be able to get access to their efforts, good and bad.

I am sure as hell not going to believe anything this Government tells me. There is no accountability!

John Clark
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