Methods and apparatus for determining a presence of a non-conductive coating on electrodes in downhole fluid resistivity measurement devices
Methods and apparatus for determining a presence of a non-conductive coating on electrodes in fluid resistivity measurement devices are described. An example method of determining a presence of a non-conductive coating on electrodes of a fluid resistivity measurement device involves obtaining a firs...
Saved in:
Main Authors | , |
---|---|
Format | Patent |
Language | English |
Published |
20.09.2011
|
Online Access | Get full text |
Cover
Loading…
Summary: | Methods and apparatus for determining a presence of a non-conductive coating on electrodes in fluid resistivity measurement devices are described. An example method of determining a presence of a non-conductive coating on electrodes of a fluid resistivity measurement device involves obtaining a first electrical potential value associated with a substantially uncoated condition of first and second electrodes of a fluid resistivity measurement device. The example method also involves measuring a second electrical potential value at a location between the first and second electrodes, comparing the first and second electrical potential values, and determining the presence of a non-conductive coating on at least one of the first and second electrodes based on the comparison. |
---|