TY - GEN
T1 - Effects of squirt-flow in cracks on drained bulk modulus of porous media
AU - Song, Y.
AU - Hu, H.
PY - 2013
Y1 - 2013
N2 - The variation of the drained bulk modulus with frequency is examined by taking into account the local flow between cracks and pores. The magnitude of dispersion of the drained bulk modulus depends on crack density, while the relaxation frequency depends on aspect ratio. An expression of the underrelaxed drained bulk modulus on full frequency range is derived by assuming that the liquid pressure in cracks is underrelaxed and the pressure in the pores is zero. The underrelaxed drained bulk modulus is a complex quantity with its real part increasing with frequency. The liquid pressure in cracks approaches zero in the low-frequency limit and is thus relaxed. In the high-frequency limit, the drained bulk modulus is unrelaxed and its value is approximately equal to that predicated by Mavko-Jizba's relation.
AB - The variation of the drained bulk modulus with frequency is examined by taking into account the local flow between cracks and pores. The magnitude of dispersion of the drained bulk modulus depends on crack density, while the relaxation frequency depends on aspect ratio. An expression of the underrelaxed drained bulk modulus on full frequency range is derived by assuming that the liquid pressure in cracks is underrelaxed and the pressure in the pores is zero. The underrelaxed drained bulk modulus is a complex quantity with its real part increasing with frequency. The liquid pressure in cracks approaches zero in the low-frequency limit and is thus relaxed. In the high-frequency limit, the drained bulk modulus is unrelaxed and its value is approximately equal to that predicated by Mavko-Jizba's relation.
UR - https://www.scopus.com/pages/publications/84887346168
U2 - 10.1061/9780784412992.017
DO - 10.1061/9780784412992.017
M3 - 会议稿件
AN - SCOPUS:84887346168
SN - 9780784412992
T3 - Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
SP - 145
EP - 153
BT - Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
T2 - 5th Biot Conference on Poromechanics, BIOT 2013
Y2 - 10 July 2013 through 12 July 2013
ER -