The Thermal Effect on the Physical Properties and Corresponding Permeability Evolution of the Heat-Treated Sandstones

Table 1

Different permeability of the heat-treated sandstones considering different temperature.

Temperature/(°C)	25	100	200	300	400	500	600	700	800
Initial permeability	3.8	1.74	1.09	1.74	3.34	6.10	5.81	3.89	4.10
Minimum permeability	1.68	0.85	0.11	0.32	1.93	5.14	2.92	0.69	0.87
Maximum permeability	38.22	37.22	14.05	23.49	34.20	40.58	33.25	32.08	32.50