Table 2 Derived minimum and maximum horizontal stress magnitude, and orientation with laboratory and wireline logging.

From: In-situ stress evaluation of coal measures based on logging parameters-A case study of Xishanyao formation in the Southern margin of Junggar basin

Number

Depth/m

The maximum stress/MPa

The minimum stress/MPa

Test of paleomagnetism /\(\:^\circ\:\)

Wave velocity anisotropy analysis/\(\:^\circ\:\)

The direction of maximum stress/\(\:^\circ\:\)

Prediction

Test

Error/%

Prediction

Test

Error/%

S-01-1

502.30

37.5

35.5

4.33

30.3

31.8

4.50

297.3

144.7

NE82.0

S-01-2

524.12

39.9

41.2

3.31

28.1

26.7

4.80

296.1

141.1

NE72.2

S-01-3

606.23

40.3

37.1

5.30

31.3

28.7

7.76

286.8

136.9

NE63.7

S-01-4

628.19

51.1

55.5

6.03

46.3

47.9

3.34

290.2

137.3

NE67.5

S-01-5

710.27

41.6

43.3

3.92

33.2

31.2

5.95

292.7

140.8

NE73.5

S-01-6

814.31

49.8

51.9

4.04

40.1

39.8

1.01

283.1

133.5

NE56.6

S-01-7

918.17

51.3

52.3

2.09

46.1

44.8

2.80

285.6

136.7

NE62.3