GeoVista - Movement Sensor Sub

The Geovista Movement Sensor Sub is an in-line probe connected to the logging stack which registers whether the stack is stationary or moving. The Movement Sensor Sub is predominantly used as a safety feature which allows the user to quickly detect when the downhole probes have stopped moving even though the winch may still be running. This immediate notice minimises the risk of spooling cable into the borehole. Similarly, the sub will indicate if the stack has become stuck moving up-hole which can help prevent accidents. A further use for this sub is to confirm measurement readings at depth.