Influence of Caprock Morphology on Solubility Trapping during CO2 Geological Sequestration

Residual and Solubility trapping during Geological CO2 storage Numerical and Experimental studies

Rasmusson, M. 2018. Residual and Solubility trapping during Geological CO2 storage. Numerical and Experimental studies. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology 1640. 81 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0257-7. Geological storage of carbon dioxide (CO2) in deep saline aquifers mitigates atmospheric release of...

Some Geomechanical Aspects of Geological CO2 Sequestration

Reservoir depletion and subsequent CO2 injection into the depleted geological reservoir induce stress changes that may mechanically damage top seal and wells, or trigger existing faults, creating the leakage pathways for CO2 escape from the reservoir. The role of geomechanics is to assess the mechanical impact of stress changes on seals, wells and faults. Since many hydrocarbon fields are geome...

Influence of anisotropic permeability on convection in porous media: Implications for geological CO2 sequestration

Modeling the Sequestration of CO2 in Deep Geological Formations

Modeling the injection of CO 2 and its sequestration will require simulations of a multi-well injection system in a large reservoir field. However, modeling at the injection well scale is a necessary prerequisite to reservoir scale modeling. We report on the development and application of two models: 1) a semi-analytical model (PNLCARB), and 2) a numerical model (STOMP-CO 2). PNLCARB can simula...

Experimental evaluation of in situ CO2-water-rock reactions during CO2 injection in basaltic rocks: Implications for geological CO2 sequestration

[1] Deep aquifers are potential long-term storage sites for anthropogenic CO2 emissions. The retention time and environmental safety of the injected CO2 depend on geologic and physical factors and on the chemical reactions between the CO2, the aquifer water, and the host rocks. The pH buffer capacity of the aquifer water and the acid neutralization potential of the host rocks are important fact...