Abstract：Laboratory experiments were conducted to measure the compressional wave velocities under hydrostatic pressure in Shirahama and Tako sandstones with a porosity of 12% and 24%，respectively. In dry samples，the pressure dependence of velocity is ascribed to the difference in pore structures. Velocities were also measured to map the movement of the injected CO2 within water-saturated samples during CO2 injection. In the water-saturated samples， velocity changes caused by the CO2 injection are typically on the order of 10%. A series of seismic tomography experiments are conducted on porous sandstone samples to demonstrate the use of cross-well seismic profiling for monitoring the migration of CO2 in geological sequestration projects.
XueZiqiu，OhsumiTakashi，KoideHitoshi. SEISMIC WAVE VELOCITY MONITORING OF CO2 MIGRATION IN POROUS SANDSTONES SATURATED WITH WATER[J]. 岩石力学与工程学报, 2003, 22(06): 1002-1002.
