• S-250 Power Swivel

    The National Oilwell Varco Model S-250 Power Swivel is a hydraulic motor driven, pipe rotating machine.

    • The National Oilwell Varco® Model S-250 Power Swivel is a hydraulic motor driven, pipe rotating machine. This compact unit, weighing only 5000 lbs., is rated to support tensile pipe loads of 250 tons at zero RPM and 106 tons dynamic load at 100 RPM. The S-250 Power Swivel incorporates a 3-inch bore gooseneck and washpipe assembly, allowing circulation through the stem while rotating or in a static condition.
    • The S-250 Power Swivel is rated at 11,000 ft.lbs. maximum torque and 160 RPM maximum speed.


    • FISHING AND WORKOVER OPERATIONS:  The S-250 Power Swivel is ideally suited to supply rotary power for internal and external cutting of casing, drillpipe, and tubing, for drilling out packers, plugs or cement, and for milling and casing scraping. The smooth and accurately controlled torque is essential in eliminating much of the danger of twisting off the string or damaging a cutting tool or mill.
    • DRILLING OPERATIONS:  Due to the compactness, lightweight, and maneuverability of the S-250 it is extremely effective for medium to heavy drilling jobs. The drilling application includes oil and gas wells, water wells, piling drilling for offshore platforms, piers, and foundation drilling for construction.
    • CORING OPERATIONS:  The use of an S-250 for any type coring operation allows any length of desired core to be taken while ensuring less chance of damage to core tools or strings with its accurate and smooth torque.



    Model No.S-250
    Assembly Part No.213811/016
    Weight (lbs.)5,000
    Maximum Torque (ft. lbs.)11,000
    Maximum Speed (RPM)160
    Nominal Load Rating (tons)250
    100 RPM Load Rating (tons106
    Maximum Circulating Pressure5,000 PSI
    Radius of Torque Rein                Retracted
    with Hook Link Adapters              Extended
    Goose Neck Connection4-inch Line Pipe Thread
    Standard Saver Sub Connection4½-inch A.P.I.-I.F.
    Goose Neck Access Hole Diameter3½-inch EUE
    Saver Sub Make-Up Torque22,000 ft. lbs.
    Bore thru (circulation passage)2 13/16-inch
    Gear Oil Capacity8 gallons
    High Pressure Hose Size1½-inch
    Drain Hose Size1-inch