Experimental Validation of the Electrokinetic Theory and Development of Seismoelectric Interferometry by Cross-Correlation

Table 2

(Modified from [44].) Parameters of the poroelastic medium and fluid layer. The temperature is 293.15 K.

Property	Symbol	Value	Unit
Bulk modulus skeleton grains^a	𝐾𝑓𝑟	50⋅10^9	[Pa]
Bulk modulus (pore) fluid^b	𝐾𝑓	2.2⋅10^9	[Pa]
Bulk modulus framework of grains^c	𝐾𝑠	0.93⋅10^9	[Pa]
Shear modulus framework of grains^c	𝐺	0.88⋅10^9	[Pa]
Pore fluid viscosity^b	𝜂	1⋅10^−3	[kg/(m s)]
Pore fluid density^b	𝜌𝑓	1000	[kg/m^3]
Solid density^c	𝜌𝑠	2570	[kg/m^3]
Weighted pore volume-to-surface ratio^d	Λ	9.4⋅10^−6	[m]
Porosity of the porous medium^c	𝜙	0.52	[—]
Permeability^c	𝑘0	3.4⋅10^−12	[m^2]
Tortuosity^c	𝛼∞	1.7	[—]
Sample width^e	𝑤𝑠	3.21⋅10^−2	[m]
Relative permittivity of the (pore) fluid^b	𝜖𝑟𝑓	80.1	[—]
Relative permittivity of the solid^b	𝜖𝑟𝑠	4	[—]
Fluid magnetic permeability (=𝜇0)	𝜇𝑓	4𝜋⋅10^−7	[H/m]
(Pore) fluid conductivity^e	𝜎𝑓	4.8⋅10^−2	[S/m]
Zeta-potential^f	𝜁	−4.0⋅10^−2	[V]

^a[78], ^b[68]. We take the value of Pyrex 7070 glass for the solid permittivity. ^csee N5B in [79], ^d[29, 59, 80, 81], ^emeasured values, and ^fsee [22]. We assume that conductivity is due to a NaCl salt solution and pH = 6.