Roller Bogie Hole Finder

As well as lifting the lower end of the toolstring on to rollers, the Roller Bogie Hole Finder presents a self-orienting roller ball to any ledges, debris or other irregularites that might be encountered on the wellbore surface while running to bottom.

This tool also acts as an effective hole finder in the event the toolstring encounters zones of well enlargement and helps the toolstring to regain the main wellbore with minimum loss of momentum while running in hole. Extension sections can also be fitted to cantilever the roller ball out over washout zones.