Air permeability measurements in low porosity clayey rocks
| Autor: | Pineda Jubert, Nguyen Hoang Viet, Romero Enrique, Sheng Daichao, Gens Antonio |
|---|---|
| Jazyk: | English<br />French |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | E3S Web of Conferences, Vol 544, p 01027 (2024) |
| Druh dokumentu: | article |
| ISSN: | 2267-1242 20245440 |
| DOI: | 10.1051/e3sconf/202454401027 |
| Popis: | The paper describes the development of a high-pressure isotropic cell for studying the environmental degradation of low porosity clayey rocks. Air permeability measurements are used in this device as a tool to evaluate rock degradation in unsaturated rock specimens caused by mechanical, hydraulic and chemical paths. A modified equation, based on the air pressure decay method proposed by Yoshimi and Osterberg (1963), is presented. The proposed method is applied to an Australian clayey shale. Estimated values of air permeability are compared against those calculated using the original method which, in the case of low porosity rocks, seems to provide unrealistic values when the air pressure in the vessel decays beyond 50%. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|