Influence of Mg2+ on CaCO3 precipitation during subsurface reactive transport in a homogeneous silicon-etched pore network
Journal Article
·
· Geochimica et Cosmochimica Acta
- Univ. of Illinois, Urbana-Champaign, IL (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Exxon Mobil Upstream Research Company, Houston, TX (United States)
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
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.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States), Environmental Molecular Sciences Laboratory (EMSL)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1132188
- Report Number(s):
- PNNL-SA--101692; 17994; 47657; KP1704020
- Journal Information:
- Geochimica et Cosmochimica Acta, Journal Name: Geochimica et Cosmochimica Acta Vol. 135; ISSN 0016-7037
- Publisher:
- The Geochemical Society; The Meteoritical Society
- Country of Publication:
- United States
- Language:
- English
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