|
| | Abstract | | We measured the electrical impedance of Berea sandstone for investigating the relationship between CO2 distribution and Induced Polarization (IP), as well as the relationships between CO2 saturation and the electrical impedance. We observe changes of impedance during CO2 injection stage (drainage) and water injection stage (imbibition). The result is similar to the previous experimental works for the DC resistivity. We also observe the change of IP between drainage and imbibition. These results indicate the potential of electrical impedance monitoring to reveal the CO2 behavior in reservoir, especially for the change of CO2 distribution. |
|
|
|
| |
|