Research Article
A Damage Constitutive Model for the Effects of CO2-Brine-Rock Interactions on the Brittleness of a Low-Clay Shale
Table 7
The brittleness index (
) of intact samples and soaked samples.
| | Soaking condition | Soaking time (day) | (%) | (%) |
| | Intact | — | 0.9961 | — | | Subcritical CO2 + NaCl | 10 | 0.9843 | 1.18 | | 20 | 0.9754 | 2.08 | | 30 | 0.9851 | 1.10 | | Supercritical CO2 + NaCl | 10 | 0.9757 | 2.05 | | 20 | 0.9713 | 2.49 | | 30 | 0.9835 | 1.26 |
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