Effect of Temperature on Permeability and Mechanical Characteristics of Lignite

Table 3

Permeability at different temperatures and pore pressures.

20	0.5	21.32
	1	22.34
	1.5	23.56
	2	22.11
	2.5	20.09
	3	19.89
	3.5	17.56
	4	18.32
	4.5	18.87
	5	22.56
50	0.5	20.12
	1	21.11
	1.5	20.01
	2	19.87
	2.5	19.01
	3	18.45
	3.5	16.96
	4	18.67
	4.5	18.45
	5	20.45
75	0.5	18.45
	1	18.47
	1.5	17.11
	2	16.67
	2.5	16.21
	3	16.03
	3.5	15.23
	4	17.23
	4.5	18.12
	5	19.67
100	0.5	23.32
	1	23.87
	1.5	24.11
	2	23.79
	2.5	23.12
	3	21.78
	3.5	22.54
	4	18.21
	4.5	20.34
	5	20.87
150	0.5	23.89
	1	24.43
	1.5	24.01
	2	23.67
	2.5	23.01
	3	22.45
	3.5	22.10
	4	20.21
	4.5	24.12
	5	25.45
200	0.5	23.01
	1	24.01
	1.5	23.85
	2	23.01
	2.5	22.87
	3	21.65
	3.5	21.45
	4	20.78
	4.5	24.33
	5	25.87
250	0.5	22.67
	1	23.56
	1.5	23.21
	2	22.56
	2.5	22.32
	3	21.34
	3.5	21.12
	4	21.45
	4.5	24.78
	5	26.45
300	0.5	22.71
	1	23.01
	1.5	22.89
	2	22.11
	2.5	21.96
	3	21.01
	3.5	20.97
	4	22.32
	4.5	25.01
	5	26.94
350	0.5	23.89
	1	24.45
	1.5	23.58
	2	22.78
	2.5	22.56
	3	21.47
	3.5	21.32
	4	22.56
	4.5	25.34
	5	27.42
400	0.5	23.32
	1	23.56
	1.5	23.12
	2	22.34
	2.5	22.53
	3	21.02
	3.5	20.89
	4	22.01
	4.5	24.23
	5	26.33
450	0.5	22.78
	1	23.22
	1.5	22.89
	2	21.92
	2.5	22.01
	3	20.67
	3.5	20.45
	4	20.46
	4.5	23.54
	5	25.34
500	0.5	22.01
	1	22.78
	1.5	22.54
	2	21.73
	2.5	21.78
	3	20.12
	3.5	19.85
	4	21.32
	4.5	23.87
	5	26.01
550	0.5	20.78
	1	22.34
	1.5	22.21
	2	21.43
	2.5	21.32
	3	19.89
	3.5	19.54
	4	22.12
	4.5	24.54
	5	26.23
600	0.5	19.01
	1	21.56
	1.5	21.78
	2	20.89
	2.5	20.56
	3	19.21
	3.5	19.12
	4	24.34
	4.5	25.32
	5	26.98
650	0.5	17.45
	1	21.01
	1.5	21.32
	2	20.45
	2.5	20.32
	3	18.98
	3.5	18.32
	4	25.01
	4.5	26.01
	5	27.45

Note: , temperature (°C); , pore pressure (MPa); , permeability (mD).