Calcium carbonate (CaCO3) geochemical reactions exert a fundamental control on the evolution of porosity and permeability in shallow-to-deep subsurface siliciclastic and limestone rock reservoirs. As a result, these carbonate water-rock interactions play a critically important role in research on groundwater remediation, geological carbon sequestration, and hydrocarbon exploration. A study was undertaken to determine the effects of Mg2+ concentration on CaCO3 crystal morphology, precipitation rate, and porosity occlusion under flow and mixing conditions similar to those in subsurface aquifers.
Revised: September 4, 2014 |
Published: May 19, 2014
Citation
Boyd V., H. Yoon, C. Zhang, M. Oostrom, N.J. Hess, B. Fouke, and A.J. Valocchi, et al. 2014.Influence of Mg2+ on CaCO3 precipitation during subsurface reactive transport in a homogeneous silicon-etched pore network.Geochimica et Cosmochimica Acta 135.PNNL-SA-101692.doi:10.1016/j.gca.2014.03.018