Operational setup 

Standard configuration

The standard setup consists of the Minibuggy dragging a 200 m long array of geophones behind it on a paved road or a relatively level dirt road. The vibrator is affixed to the center of the vehicle controlled by a computer within the cab.

The drag cable is equipped with 95 gimbaled geophones separated every 1.25 m the first 50 m behind the vibration source and every 2.5 m the remaining 150 m along the cable.

The denser sensor spacing nearer the vibrator produces high quality data in the shallowest portion of the near-surface. The 200 m offset provides the capability of acquiring high-resolution data at depths of more than a kilometer.

Operation

The system requires only two personnel to operate. A qualified operator runs the Minibuggy, vibrator and seismic acquisition system. A field assistant ensures the cable is in the optimal configuration during operation.

The dragged land streamer configuration is constructed for cost-effective investigations on paved roads where easy access and long straight sections facilitate high daily production rates. Production rates vary according to local conditions, however, average rates are 2 km per day.