Table 2.
Open in new tab

Stiffness parameters, |$C_{\mathrm{ij}}$|⁠, measured at seismic (7.5 Hz) and ultrasonic (500 kHz) frequencies at the initial stress state for T and M shales.

 |$C_{33}^{0}$||$C_{44}^{0}$||$C_{11}^{0}$||$C_{66}^{0}$||$C_{13}^{0}$|
 (GPa)(GPa)(GPa)(GPa)(GPa)
T shale
 Seismic23.105.1127.126.7614.50
 Ultrasonic27.507.6732.7110.1015.61
M shale
 Seismic9.931.1512.632.108.39
 Ultrasonic9.961.6113.232.848.06
 |$C_{33}^{0}$||$C_{44}^{0}$||$C_{11}^{0}$||$C_{66}^{0}$||$C_{13}^{0}$|
 (GPa)(GPa)(GPa)(GPa)(GPa)
T shale
 Seismic23.105.1127.126.7614.50
 Ultrasonic27.507.6732.7110.1015.61
M shale
 Seismic9.931.1512.632.108.39
 Ultrasonic9.961.6113.232.848.06
Table 2.
Open in new tab

Stiffness parameters, |$C_{\mathrm{ij}}$|⁠, measured at seismic (7.5 Hz) and ultrasonic (500 kHz) frequencies at the initial stress state for T and M shales.

 |$C_{33}^{0}$||$C_{44}^{0}$||$C_{11}^{0}$||$C_{66}^{0}$||$C_{13}^{0}$|
 (GPa)(GPa)(GPa)(GPa)(GPa)
T shale
 Seismic23.105.1127.126.7614.50
 Ultrasonic27.507.6732.7110.1015.61
M shale
 Seismic9.931.1512.632.108.39
 Ultrasonic9.961.6113.232.848.06
 |$C_{33}^{0}$||$C_{44}^{0}$||$C_{11}^{0}$||$C_{66}^{0}$||$C_{13}^{0}$|
 (GPa)(GPa)(GPa)(GPa)(GPa)
T shale
 Seismic23.105.1127.126.7614.50
 Ultrasonic27.507.6732.7110.1015.61
M shale
 Seismic9.931.1512.632.108.39
 Ultrasonic9.961.6113.232.848.06
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