Modelling gas flow experiments in Mx80 bentonite: analysis of preferential gas paths

Puig Damians, Ivan; Olivella Pastallé, Sebastià; Gens Solé, Antonio

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Puig Damians, Ivan

Olivella Pastallé, Sebastià

Gens Solé, Antonio

Document typeConference report

Defense date2019

PublisherInternational Centre for Numerical Methods in Engineering (CIMNE)

Rights accessOpen Access

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder

Abstract

A gas injection test, performed on compact bentonite, was carried out at the British Geological Survey. The test is composed by two stages (i.e. hydration followed by gas injection testing). After gas breakthrough and a period of gas flow through the sample, the injection pump was stopped whilst the stresses and porewater pressures were continuously monitored. A Hydro-Mechanical 3D numerical model has been developed to simulate the gas injection test and to achieve similar gas pressure, gas outflow, and stress evolution responses.

CitationDamians, I.P.; Olivella, S.; Gens, A. Modelling gas flow experiments in Mx80 bentonite: analysis of preferential gas paths. A: Workshop of CODE_BRIGHT Users. "Workshop of CODE_BRIGHT Users: 16th May 2019, Barcelona, Spain". Barcelona: International Centre for Numerical Methods in Engineering (CIMNE), 2019, p. 1-5.

URIhttp://hdl.handle.net/2117/174035

Publisher versionhttps://deca.upc.edu/en/projects/code_bright/workshop/doc/abstracts

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Modelling gas flow experiments in Mx80 bentonite: analysis of preferential gas paths

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