Experimental Study on Hydraulic Fracturing of Laminated Sandstone Combined with Industrial CT and L-NMR

Table 1

Mechanical parameters of the sandstone samples.

No.	Bedding angle	Uniaxial compressive strength (MPa)	Elastic modulus (GPa)	Tensile strength (MPa)
1	0°	168.07	37.79	15.68
2	15°	190.95	38.58	9.05
3	30°	137.97	35.95	9.69
4	45°	113.77	43.85	13.19
5	60°	101.36	27.57	10.92

Note: Tensile strength was measured using the Brazilian test, following the ASTM standard.