Abstract: An improved drillpipe spinner having a drillpipe spinner frame mounted to a hanging tree, a spinner arm frame assembly, two drive roller shaft assemblies, two pressure roller assemblies, two idler shaft assemblies, a single hydraulic motor, a gear cover, two spinner gripper cylinders and steel heat treated knurled rollers. A cluster of gears mounted in place, with the hydraulic motor to drive the cluster of gears, turn the steel knurled rollers. The two hydraulic cylinders are extended to engage the pressure rollers. The engaged spinner turns the drillpipe for makeup or spinout operation.

Abstract: An improved drillpipe spinner having a drillpipe spinner frame mounted to a hanging tree, a spinner arm frame assembly, two drive roller shaft assemblies, two pressure roller assemblies, two idler shaft assemblies, a single hydraulic motor, a gear cover, two spinner gripper cylinders and steel heat treated knurled rollers. A cluster of gears mounted in place, with the hydraulic motor to drive the cluster of gears, turn the steel knurled rollers. The two hydraulic cylinders are extended to engage the pressure rollers. The engaged spinner turns the drillpipe for makeup or spinout operation.

Abstract: Apparatus and methods, for making and breaking connections in a horizontal boring drillstring, comprising a skid-mounted torque wrench and a spinning unit hydraulically operated from a remote control station, therefore allowing a coupling to be made or broken without manual intervention. One embodiment of a preferred torque wrench and spinning unit is horizontally mounted on a structural frame that is adapted to allow movement relative to a horizontal drill string. A preferred torque wrench comprises a gripping mechanism that serves to hold stationary one half of a coupling and a torquing mechanism that arcuately translates the adjoining half of the coupling to either make-up or break-out the coupling. A preferred spinning unit comprises a plurality of drive rollers that impart rotational motion into the pipe to engage or disengage the threads of a coupling.