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Geologic Greenhouse Gas Sequestration Projects

image credit: arthspacecircle_blogspot.com

Earlier I posted "Verification of Geologic Greenhouse Gas Sequestration". This described current techniques for greenhouse gas geologic sequestration, and requirements and techniques for verifying the effectiveness of this process.

Whereas the above paper deals seriously with the above-described methods behind the projects, it really doesn’t describe other processes (like site selection), the business justification for CCS or any actual projects. This post deals with the above described information that was missing from the first paper.

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John Benson's picture

Thank John for the Post!

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Matt Chester's picture
Matt Chester on Mar 31, 2020 4:16 pm GMT
  • Careful selection of a good quality site is essential to CCS projects as it is difficult to engineer a way out of a bad site.
  • Site selection requires an iterative process for data and risk evaluation.

In your research, did you come across examples of a site that was selected but ended up being a poor one, and assuming so, what is the next step? Is the land able to be readily reused by the company in a useful way? Or is a lot done to the land to get to that point where it was determined to be ultimately unsuitable? 

John Benson's picture
John Benson on Mar 31, 2020 10:12 pm GMT

Short answer: No, but I believe in the earlier paper there was some discussion around how to mitigate problems like leakage paths. These are usually either man-made features (read: poorly capped wells) or unknown faults.

One additional comment: As you can see from the projects, most of these are for enhanced oil recovery. As oil is removed from the reservoir, the sub-surface pressure is reduced and this slows any leakage. I believe in the next ten to twenty years more CCS projects will be purely for GHG sequestration, and then I would expect to see more failed projects.

-John

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