Effects of Supercritical CO₂ Exposure on Shale Mineralogical Composition and Mechanical Behavior under Different Aqueous Soaking Conditions

View at Publisher

Ask AI

Bookmark

Share

Key Points

This research investigates how supercritical CO₂ exposure alters the mineral composition and mechanical behavior of shale under various pH conditions.
Conducted experiments exposing shale to supercritical CO₂ combined with different pH solutions.
Analyzed changes in mineral composition using mineralogical assessments.
Investigated mechanical behavior through acoustic emissions during soaking.
Supercritical CO₂ exposure increased quartz and kaolinite while decreasing potassium feldspar, sodium feldspar, dolomite, calcite, and pyrite.
Mechanical properties showed significant degradation, with peak strength reducing by 50.8% depending on the pH level.
Shale transitioned from brittle failure to progressive damage following supercritical CO₂ exposure.

Analyzes mineral composition and mechanics of shale under supercritical CO₂ exposure and pH variations, suggesting implications for gas extraction.

No abstract yet. The journal hasn't published one we can show.

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

Jia et al. (2026) studied this question.

View at Publisher

Ask AI

Bookmark

Share