Hydraulic Properties and Microgeometry Evolution Accompanying Limestone Dissolution by Acidic Water
NOIRIEL, C.
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
Mines Paris - PSL (École nationale supérieure des mines de Paris)
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
Mines Paris - PSL (École nationale supérieure des mines de Paris)
GOUZE, Ph.
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
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Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
NOIRIEL, C.
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
Mines Paris - PSL (École nationale supérieure des mines de Paris)
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
Mines Paris - PSL (École nationale supérieure des mines de Paris)
GOUZE, Ph.
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
< Reduce
Institut des Sciences de la Terre, de l'Environnement et de l'Espace de Montpellier [ISTEEM]
Language
en
Article de revue
This item was published in
Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles. 2005-01, vol. 60, n° 1, p. 177-192
Institut Français du Pétrole (IFP)
English Abstract
A reactive flow-through experiment by carbon dioxide-saturated water at the partial pressure of 0.1 MPa and room temperature was conducted on a porous limestone in order to identify the relationships between fluid chemistry, ...Read more >
A reactive flow-through experiment by carbon dioxide-saturated water at the partial pressure of 0.1 MPa and room temperature was conducted on a porous limestone in order to identify the relationships between fluid chemistry, hydrodynamics and structural properties. Periodic imaging by non destructive X-ray microtomography allowed following the evolution of the core micro-geometry and fluid-rock interface in detail while its porosity and permeability increased due to dissolution. Several mechanisms were successively involved in the rapid permeability increase. Early in the experiment, the permeability increase was related to concomitant particle dissolution and displacement. Later on, permeability continued to rise due to solid-fluid interface smoothing and to pore connectivity increase.Read less <
Origin
Hal imported