National Oilwell acknowledges the accelerating demand for increased productivity in land drilling operations and has responded to this growing market with the development of the innovative TDS-9 Top Drive Drilling System.
National Oilwell Varco engineering has made use of the recent advancements in AC technology by designing the TDS-9 to be powered by two 350 hp AC drilling motors. This 700-hp system produces 32,500 ft lb of drilling torque and 47,000 ft lb of make-up/break-out torque. The TDS-9 is compact enough to be safely operated in a standard 136 ft. mast while providing 400 tons of hoisting capacity. Its highly portable design allows for rig-up and rig-down in just a few hours. It easily integrates into existing rigs at minimal installation cost and minimal rig modification.