The Permeability Alternation of Shale Fractures due to Sc-CO₂ Soaking: Implications for Sc-CO₂ Fracturing and Deep CO₂ Sequestration in Shale Reservoirs

Table 1

Detailed mineralogical compositions (wt%) of Longmaxi sample before experiments.

Mineral group	Mineral name	Weight percentage (%)	Total (%)
Tectosilicate	Quartz	44.13	48.62
	Albite	4.49
Carbonate	Calcite	19.61	28.20
	Dolomite	8.59
Phyllosilicate	Illite	23.18	23.18
Total		100	100