SEGJ Technical Conference

Estimation of CO2 behavior in porous sandstone by P-wave velocity and electrical resistivity

Abstract We estimated the CO2 behaver in porous sandstone by using Vp and electrical resistivity with increasing CO2 injection rate (FR). Both of properties indicated increasing CO2 saturation with increasing FR. Vp indicated that CO2 patchy size decreases with increasing FR. Resistivity also suggested new pathway formation with increasing FR. We discussed this CO2 behavior by using percolation theory which is changing threshold parameter with increasing FR. We also modeled percolative CO2 flow in porous sandstone.