Analysis of Thermal Stimulation to Enhance Shale Gas Recovery through a Novel Conceptual Model

Table 2

Setting of model parameters in the numerical tests.

Model parameter	Value	Unit
Porosity	0.05	1
Inner matrix permeability	1.00E − 16	m^2
Primary fracture permeability	1.00E − 10	m^2
Secondary fracture permeability	1.00E − 11	m^2
Gas constant	8.314	Pa.m^3/mol/K
Molecular mass	0.016	kg/mol
Initial pressure	2.00E + 07	Pa
Wellbore pressure	3.00E + 06	Pa
Initial temperature	393.15	K
Thickness	100	m
Reservoir length	1200	m
Reservoir width	800	m
Thermal conductivity of gas	0.05 [27]	W/m/K
Outer matrix permeability	1.00E − 17	m^2
Thermal conductivity of rock	2.8 [27]	W/m/K
Heat capacity of gas	3000 [40]	J/kg/K
Heat capacity of rock	1000 [27]	J/kg/K
Density of rock	2600	kg/m^3
Volumetric heat transfer coefficient	1 [41]	W/m^3/K
Langmuir volume constant	100	scf/ton
Fracture porosity	0.5	1
Temperature of inner boundary	520	K