Evolution of gas migration properties in a field-scale bentonite engineered barrier system

View at Publisher

Ask AI

Bookmark

Share

Key Points

This research aims to investigate the gas migration properties in a bentonite engineered barrier system under field-scale conditions.
Conducted six gas injection tests at a depth of 420 m in the Äspö Hard Rock Laboratory.
Tests evaluated gas pressure and hydraulic permeability in a canister filter across different depths.
Monitored changes in dilatant pathways and buffer maturity over time.
Gas movement occurred at pressures near local total stress, influencing migration behavior.
Gas pressure peaks correlated with hydraulic permeability, indicating the buffer's conductivity controlled gas entry.
Dilatant pathways were limited and sealed over time, with some reactivation observed in repeat tests.

We only have this paper's title and publication details.

Demonstrates gas migration behavior in bentonite barriers, suggesting design improvements.

No takes yet. Share an insight, caveat, or question.

Cuss et al. (2026) studied this question.

View at Publisher

Ask AI

Bookmark

Share