The BHTV 42 televiewer tool employs a rotating transducer mounted at the lower
extremity of the tool to send a highly focalised ultrasonic
pulse radially outwards towards the borehole wall up to 360 times per
revolution, the amplitude and travel time of which are
measured on its return to the tool after reflection at the borehole wall.
This information, combined with the data given by the tool’s onboard
orientation system, provides an extremely detailed and orientated
acoustic image of the borehole wall.
The televiewer tool is used wherever orientated geological structure information is required.
LIM is a leader company specialised in instrumentations during and after drilling