Well head reducing drive drilling tool integration instrument

The utility model provides a well head reducing drive drilling tool integration instrument, includes the extension nipple, hangs driver and supporting seat. Its characterized in that: including the eight -angular prism form extension nipple cover eight -angular prism form hang the downthehole of driver, hang the driver and sit on the supporting seat, the supporting seat seat is on the well head blowout preventer, the pit shaft drilling rod is through well head blowout preventer, supporting seat and hang the driver and link to each other with extension nipple lower extreme screw thread, the extension nipple upper end links to each other with the tap screw thread, it leans on magnetic force to hang the upper and lower of extension nipple to hang the driver. Enlarged extension nipple radius of gyration through hanging the driver, reduced the radius of gyration of drilling tool, made the screw rod drilling tool adapt to the requirement of adopting heavy dose of chemical sand control to bore the diameter of filling in the length of drilling tool and sand of opening chemical sand control sand stopper. Bore the length of opening the drilling tool according to chemical sand control sand stopper and require two multiplicable extension nipples, hang the driver and lean on magnetic force to adsorb on any one extension nipple, can guarantee that adaptation chemical sand control bores the requirement of opening chemical sand control sand stopper.