Investigation of Multistage Hydraulic Fracture Optimization Design Methods in Horizontal Shale Oil Wells in the Ordos Basin

Table 1

Mechanical properties of the artificial cement specimen.

Parameters	Value
Fracture toughness (MPa)	0.7
Uniaxial compressive strength (MPa)
Tensile strength (MPa)
Poisson’s ratio	0.17
Elastic modulus (GPa)	24.6