Experimental and Numerical Studies on Permeability Properties of Thermal Damaged Red Sandstone under Different Confining Pressures

Table 2

Pore structure parameters of heat-treated red sandstone specimens.

Parameters	(°C)
	200	300	400	500	600	800
Cumulative mercury intake (ml·g^-1)	0.0146	0.0287	0.0448	0.0468	0.0518	0.0544
Mean pore size (nm)	56.4	61.9	63.2	96.2	102.2	144.3
Porosity (%)	3.17	6.83	10.11	10.47	11.53	12.06