A system for handling a tubular member includes a gripping assembly configured to grip the tubular member. The system also includes a horizontal actuator configured to move the gripping assembly and the tubular member horizontally between a rack and alignment with a wellbore while the tubular member is gripped by the gripping assembly. The system also includes a vertical actuator coupled to the gripping assembly, the horizontal actuator, or both. The vertical actuator is configured to move the gripping assembly and the tubular member vertically while the tubular member is gripped by the gripping assembly and in alignment with the wellbore. The system also includes a rotating assembly coupled to the gripping assembly and configured to rotate the tubular member while the tubular member is gripped by the gripping assembly and in alignment with the wellbore.

A system for handling a tubular member includes a gripping assembly configured to grip the tubular member. The system also includes a horizontal actuator configured to move the gripping assembly and the tubular member horizontally between a rack and alignment with a wellbore while the tubular member is gripped by the gripping assembly. The system also includes a vertical actuator coupled to the gripping assembly, the horizontal actuator, or both. The vertical actuator is configured to move the gripping assembly and the tubular member vertically while the tubular member is gripped by the gripping assembly and in alignment with the wellbore. The system also includes a rotating assembly coupled to the gripping assembly and configured to rotate the tubular member while the tubular member is gripped by the gripping assembly and in alignment with the wellbore.

A power tong includes a lower tong and an upper tong, each with multiple grippers distributed around a tubular passage, for gripping a lower tubular and ripping an upper tubular respectively. A torque actuator includes a first hydraulic drive and a second hydraulic drive, for rotating the upper tong relative to the lower tong. The first hydraulic drive and the second hydraulic drive each have a drive shaft that supports a guide wheel for cooperating with a guide track, and a pinion for cooperating with a rack, which guide wheel and pinion are concentrically, mounted on the drive shaft of the hydraulic drive. The hydraulic drives are mounted with the drive shafts parallel to the main axis, and the upper tong or the lower tong comprises a guide track receiving the guide wheel and a rack cooperating with the pinion.

A tubular handling system for conducting subterranean operations is disclosed and can include a first tubular handling system and a second tubular handling system. The first tubular handling system can include a bridge disposed within a tubular storage area, an arm pivotally coupled to the bridge, and a gripper coupled to the arm and adapted to engage with a tubular in the tubular storage area. The second tubular handling system can include a support structure, a first tubular handler coupled to the support structure, and a second tubular handler coupled to the support structure and distinct from the first tubular handling system.

A pipe gripping device includes a gripper arm arrangement having first and second gripper arms and having an open state which enables the pipe to be introduced into an opening between the arms, and an engaged state in which the gripper arms are adapted to engage with the pipe. First and second drive arms movably connect the respective first gripper arm and the second gripper arm to a support structure. Pivots rotationally connect the drive arms to the support structure. The device further comprises a transmission drive shaft and a transmission arrangement having first, second and third transmission members, each rotatable in respect to each other and coupled with each other. The first member is coupled with the drive shaft, the second member is coupled to the first member and the first drive arm, and the third member is coupled with the second member and the second drive arm.

A differential iron roughneck for making or breaking a pipe connection includes: at least one first gripping cylinder for delivering torque to a first pipe; at least one second gripping cylinder for delivering and receiving torque to and from a second pipe; and a differential gearbox including: a primary shaft delivering torque to the at least one first gripping cylinder; and a secondary shaft receiving torque from the at least one second gripping cylinder, where the primary shaft and the secondary shaft rotate at different speeds.

A power tong includes a lower tong and an upper tong, each with multiple grippers distributed around a tubular passage, for gripping a lower tubular and ripping an upper tubular respectively. A torque actuator includes a first hydraulic drive and a second hydraulic drive, for rotating the upper tong relative to the lower tong. The first hydraulic drive and the second hydraulic drive each have a drive shaft that supports a guide wheel for cooperating with a guide track, and a pinion for cooperating with a rack, which guide wheel and pinion are concentrically, mounted on the drive shaft of the hydraulic drive. The hydraulic drives are mounted with the drive shafts parallel to the main axis, and the upper tong or the lower tong comprises a guide track receiving the guide wheel and a rack cooperating with the pinion.

The invention relates to a drilling rig comprising: a tubular stand support tower, tubular stand storage rack, slip device for supporting multiple tubular stands, and a tubular stand connecting device. According to the invention the rig is provided with a tubular stand handling system, adapted to move a tubular stand between the storage rack and a position in the firing line above the tubular string slip device, and adapted to rotatable support the tubular stand in the firing line during spinning in, to allow for connecting the tubular stand with the tubular string, and during spinning out, to allow for disconnecting the tubular stand from the tubular string, the tubular stand handling system comprising. The tubular stand handling system comprises vertical rails and a lower motion arm assembly and an upper motion arm assembly comprising grippers, mounted on said vertical rails. Also provided is a weight compensation control system.

A power tong assembly has a transmission box having a plurality of speeds. A gear train of the tong assembly completely encircles a rotary gear by including idler gears, fluid lines and actuating mechanisms within a tong door, which itself can be remotely operated. Cam roller assemblies can be inversely mounted into cage plates and a support race can be mounted into an opening, thereby eliminating the need to cut a groove in a rotary gear. Filler blocks can be inserted adjacent to gears to catch and redirect slung grease from gears back to said gears, while dampening noise and reducing the misuse of grease, thereby increasing effectiveness of lubrication. A make and break actuator assembly of the present invention can be housed on the power tong body such that it is completely covered from external damage except when momentarily activated. A symmetric rotary gear, rotary gear inserts, cam shoe inserts and over-travel cam stops are provided.

A self-adjusting spinner is provided that is capable of accommodating various pipe sizes without requiring the need for an operator to climb up the support mechanism and manually change the position of the drive assembly. The self-adjusting spinner includes a case having two pivotally connected members: a stationary case member and a moving case member. Upper and lower plates having gear racks are mounted on the stationary case member for moving a drive assembly horizontally across the case. The drive assembly includes a motor that drives gear sprocket through a drive shaft. The drive sprocket then drives a chain that rotates a drill pipe in an operative position relative to the case. The spinner also includes an adjusting assembly mounted on the case that moves the drive assembly along the gear rack upon the actuation of an adjustment sequence. When the adjustment sequence is initiated, the effective length of the chain is adjusted to accommodate drill pipes of varying diameters.