b	Langmuir polymer adsorption parameter (dimensionless)
$C_{max}$	Maximum dimensionless adsorbed-polymer concentration
$C_o$	Injection concentration (${\mathrm{m}}^3$ polymer/${\mathrm{m}}^3$ aqueous phase)
$C_p$	Polymer concentration in aqueous phase (${\mathrm{m}}^3$ polymer/${\mathrm{m}}^3$ aqueous phase)
II	Injectivity index (m4 s kg−1)
J(t)	Impedance (dimensionless)
JBL	Damage-free impedance (dimensionless)
Jpolymer	Polymer impedance (dimensionless)
M	Mobility ratio (dimensionless)
m	Slope of impedance growth during deep-bed filtration (dimensionless)
$m_c$	Slope of impedance growth during cake formation (dimensionless)
K	Permeability (${\mathrm{m}}^2$)
$k_{rowi}$	Oil-phase relative permeability at initial water saturation (dimensionless)
p	Pressure (Nm−2)
pw	Wellbore pressure (Nm−2)
pres	Reservoir pressure (Nm−2)
R	Permeability-reduction (or resistance) factor due to polymer adsorption (dimensionless)
rw	Wellbore radius (m)
re	Reservoir radius (m)
q	Injection rate (m3 s−1)
S	Dimensionless trapped (retained) polymer concentration
$t_D$	Dimensionless time
te	Dimensionless stabilization time (PVI)
ttr	Dimensionless transition time (PVI)
$t_{BT}$	Breakthrough time (PVI)
$x_D$	Dimensionless distance
$x_{Df}$	Dimensionless front position
$x_w$	Dimensionless squared radius
Λ	Dimensionless filtration coefficient
β	Formation-damage coefficient (dimensionless)
ϕ	Porosity (fraction)
PVI	Pore volume injection