Effects of impurities on geological storage of CO2
1st July 2011
This study provides a review of existing information and published research on the potential impact of CO2 waste stream purity on storage engineering and associated costs. A range of storage scenarios are considered, including deep saline aquifer formations, depleted gas fields and CO2-EOR schemes, although the study focuses primarily on deep saline formations since this scenario has the largest theoretical storage capacity and the most significant potential for complex geological reactions.
Particular aspects considered include:
- the potential effects of impurities on behaviour and storage capacity calculations;
- effects on the rate of geochemical reactions with both formations and caprock associated buoyant forces and trapping mechanisms;
- potential effects on injectivity, reservoir permeability and caprock integrity both near well-bore and deeper in the formation; and
- potential for corrosion of well components and estimated impacts on system reliability if not mitigated.
The content within the Global CCS Institute Publications, Reports and Research Library is provided for information purposes only. We make every effort and take reasonable care to keep the content of this section up-to-date and error-free. However, we make no claim as to its accuracy, currency or reliability.
Content and material featured within this section of our website includes reports and research published by third parties. The content and material may include opinions and recommendations of third parties that do not reflect those held by the Global CCS Institute.