Porothermoelastic Response of a Borehole in Fluid-Saturated Medium Subjected to Thermal Osmosis Effect

Table 1

List of input data ([8, 11, 39]).

Parameters	Value	Units
In situ conditions
Overburden stress ()	29	kPa/m
Maximum horizontal in situ stress ()	25	kPa/m
Minimum horizontal in situ stress ()	20	kPa/m
Formation pore pressure ()	9.8	kPa/m
Wellbore conditions
Well depth (true vertical depth)	1000	m
Wellbore radius ()	0.1	m
Formation pore pressure ()	12	kPa/m
Material parameters
Elastic modulus ()	9.474	GPa
Possion’s ratio ()	0.24
Grain bulk modulus ()	27.5	GPa
Grain bulk modulus ()	2.15	GPa
Permeability coefficient ()	, ,
Reference porosity ()	0.14
Linear expansion coefficient for solid skeleton ()		1/K
Volumetric expansion coefficient for pore fluid ()		1/K
Thermal diffusivity ()	/
Thermal osmotic coefficient ()	, , ,
Cohesion of rock ()	10	MPa
Internal friction angle ()	20	Degree