Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evolution of Permeability in Siliceous Rocks by Dissolution and Precipitation Under Hydrothermal Conditions
A conceptual model is presented to follow the evolution of permeability in siliceous rocks mediated by pressure solution comprising the serial processes of interfacial dissolution, diffusion, and free‐face precipitation. In this work the main minerals of siliceous rocks that are quartz, cristobalite, and amorphous silica, are notably focused to examine differences of the permeability evolutions attributed to the composed minerals, at the effective pressures of 1, 5, 10 MPa, and temperatures of 20 and 90°C. The rates and magnitudes of the permeability degradation increase with increments of pressures and temperatures prescribed. Ultimate permeabilities reduce by the order of 90% at the completion of dissolution‐mediated compaction at 10 MPa and 90°C.
Evolution of Permeability in Siliceous Rocks by Dissolution and Precipitation Under Hydrothermal Conditions
A conceptual model is presented to follow the evolution of permeability in siliceous rocks mediated by pressure solution comprising the serial processes of interfacial dissolution, diffusion, and free‐face precipitation. In this work the main minerals of siliceous rocks that are quartz, cristobalite, and amorphous silica, are notably focused to examine differences of the permeability evolutions attributed to the composed minerals, at the effective pressures of 1, 5, 10 MPa, and temperatures of 20 and 90°C. The rates and magnitudes of the permeability degradation increase with increments of pressures and temperatures prescribed. Ultimate permeabilities reduce by the order of 90% at the completion of dissolution‐mediated compaction at 10 MPa and 90°C.
Evolution of Permeability in Siliceous Rocks by Dissolution and Precipitation Under Hydrothermal Conditions
Shao, Jian‐Fu (Herausgeber:in) / Burlion, Nicolas (Herausgeber:in) / Yasuhara, H. (Autor:in) / Kinoshita, N. (Autor:in) / Kurikami, H. (Autor:in) / Nakashima, S. (Autor:in) / Kishida, K. (Autor:in)
19.02.2013
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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