Investigation of Fracture Width Change under Closure Pressure in Unconventional Reservoir Based on the Hertz Contact Theory

Table 1

Deviation between the experimental data and the theoretical model.

Mesh	Deviation ratio (%)
	10 MPa	20 MPa	30 MPa	40 MPa	50 MPa	60 MPa	70 MPa
20-40	66.62	1.75	1.97	5.01	5.97	2.57	0.79
40-60	18.20	13.42	8.00	1.81	7.96	8.39	3.38
70-100	48.50	22.12	10.69	16.24	20.70	14.92	10.20