New Analytical Method to Evaluate Casing Integrity during Hydraulic Fracturing of Shale Gas Wells

Table 1

Thermal and mechanical Parameters of fluid-casing-cement sheath-formation system.

Property	Casing	Cement sheath	Formation	Fluid
Elastic modulus, Ei (GPa)	210	5	35	—
Poisson’s ratio, μi	0.3	0.15	0.25	—
Coefficient of thermal expansion, αi (10^−5·°C^−1)	1.5	1.0	1.0	—
Thermal conductivity, ki (W·m^−1·°C^−1)	58.2	1.0	1.0	1.73
Specific heat, Cpi (J·kg^−1·°C^−1)	460	1830	1043	3935
Density, ρi (kg·m^−3)	7850	1800	2500	1080

Note: properties in parenthesis were used in the parametric study.