1887

Abstract

In this study, we compare the responses of downhole magnetometric resistivity (MMR) and downhole electric resistance tomography (ERT) due to changes in electric resistivity consecutive to CO2 injection in a saline aquifer. The results indicate that a smaller volume of CO2 is detectable with MMR, for noise levels inferred from field data. This is attributed to the fact that the MMR method is sensitive to current density variations and not to absolute values of resistivity. Consequently, the MMR response is not affected by the problem of noise in conductive media, as is the case for ERT (very weak electrical potential in conductive environments). Moreover, sensitivity maps show that the sensitivity patterns have broader extents for MMR.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201701935
2017-08-28
2020-03-28
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201701935
Loading
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error