All boreholes are existing groundwater monitoring wells surrounding a producing oil well. The boreholes are PVC lined to total depth and it was the integrity of the PVC lining and the exact depths at which the lining became slotted that the client needed clarity on.
With all the boreholes being inaccessible by vehicle, Robertson Geo used its most compact, highly mobile logging unit consisting of the Mini deployment winch, tripod and Micrologger2 surface interface system.
The High-Resolution Optical Televiewer (Hi-OPTV) displayed the integrity of the PVC lining and the exact depths at which the lining became slotted. These boreholes were drilled some twenty years ago with the client holding very little knowledge to their current depths, stability, and the condition of the PVC prior to these logs conducted by Robertson Geo.