Effects of chemical osmosis on swelling clays and the elastic properties of the Pierre shale with its implications for oil recovery

Improving Precision in Assessments for CO2 Geological Storage: Investigating the Influence of Pore Pressure on Rock Properties

“…According to previous research, the E dyn will decrease with increasing pore pressure in most cases. ,,,, This research used a constant confining pressure of 15 MPa for each sample. The pore pressures were set at 0, 5, 6, 7.5, 8, 9, and 10 MPa to simulate different effective pressures.…”

“…The velocity of elastic waves traveling through a medium is critical to reservoir monitoring and exploration . Many researchers focused on the compressional wave velocity ( V p ) and their conclusion were in accordance with each other that V p will become faster when the effective stress increases. , In contrast, Adekunle believes that when the effective stress increased, compressional wave velocity increased but transverse wave velocity ( V s ) decreased . Soustelle’s paper used different confining pressures and constant pore pressures instead of different pore pressures in their study.…”

“…8,9 In contrast, Adekunle believes that when the effective stress increased, compressional wave velocity increased but transverse wave velocity (V s ) decreased. 10 Soustelle's paper used different confining pressures and constant pore pressures instead of different pore pressures in their study. They indicated that carbonate's V p and V s will both increase with effective pressure increase.…”