A system, including one or more supports disposed on a drill floor. The system also includes a movable support slidingly coupled to the one or more supports and configured to be selectively moved towards the drill floor during a tripping-in operation as part of a continuous tripping operation and away from the drill floor during a tripping-in operation as part of a continuous tripping operation, and a tripping apparatus coupled to the movable support and configured to make up or break out a threaded joint between a first tubular segment and a second tubular segment, wherein the tripping apparatus is configured to be selectively movable from a first position disposed proximate to the one or more supports and a second position at a distance away from the one or more supports to make up the threaded joint when the tripping apparatus is disposed in the second position during the tripping-in operation or to break out the threaded joint when the tripping apparatus is disposed in the second position during the tripping-out operation.

The invention relates to a vessel comprising a moonpool, a firing line hoist system, a stationary main deck for storing equipment and/or tubulars, and a mobile working deck having a front deck section and a rear deck section. The working deck can be moved between a working position and a transporting position. A rear deck lift system is provided for lifting and lowering a rear deck section between the working position and the transporting position. A front deck guide system is provided for guiding a front deck section in a substantially horizontal direction between the working position and the transporting position.

A system, including one or more supports. The system also includes a movable platform slidingly coupled to the one or more supports and configured to be selectively moved towards a drill floor and away from the drill floor. The system further includes a roughneck disposed on the movable platform and configured to make up or break out a threaded joint between a first tubular segment and a second tubular segment, wherein the roughneck is configured to be selectively movable along the movable platform from a first position disposed adjacent to the one or more supports and a second position disposed adjacent to the first tubular segment and the second tubular segment.

A wellbore tubular handling system for applying a downforce to wellbore tubulars using a service rig. A downforce system includes a first frame assembly coupled to a slip assembly for engaging wellbore tubulars, a base member connected to the first frame assembly, and an actuator adapted to extend and/or retract the first frame assembly between a first position and a second position, wherein the second position is laterally displaced from the first position along a path formed by extension of the actuator, and wherein the base member is connected to the mast of the service rig. A method of applying a downforce to a wellbore tubular using a downforce system for a service rig.

A method of building and operating a land-based drilling rig with a high-capacity mast include providing a platform collapsed on a substructure over a proposed well drilling location and building the high-capacity mast in a horizontal condition by attaching a lower portion of the high-capacity mast to the platform. The high-capacity mast having an opening formed therein sized to accommodate four Range 2 pipes or three Range 3 pipes. The high-capacity mast may be raised from the horizontal condition to a vertical condition by pushing the side of the high-capacity mast to pivot the high-capacity mast about a pivot point on the platform. The platform may be raised from a collapsed condition to a raised condition over the substructure. Some implementations include dual racking boards on the high-capacity mast.

An actuator assembly for a drilling rig includes a cradle actuator coupled to a substructure of a rig, and an actuator bracket having a first end pivotally coupled to the substructure. The actuator bracket is coupled to the cradle actuator. The assembly also includes a cradle having a first end that is pivotally coupled to the actuator bracket and to a first end of a rig-up actuator. The rig-up actuator is receivable at least partially in the cradle. The assembly further includes a front bracket pivotally coupled to the cradle and to the substructure. Extension of the cradle actuator pivots the actuator bracket, the cradle, and the front bracket so as to raise a second end of the rig-up actuator, thereby moving the rig-up actuator from a stowed position to raised position.

A system, including one or more supports. The system also includes a movable platform slidingly coupled to the one or more supports and configured to be selectively moved towards a drill floor and away from the drill floor. The system further includes a roughneck disposed on the movable platform and configured to make up or break out a threaded joint between a first tubular segment and a second tubular segment, wherein the roughneck is configured to be selectively movable along the movable platform from a first position disposed adjacent to the one or more supports and a second position disposed adjacent to the first tubular segment and the second tubular segment.

A horizontal directional drilling system. The system has a pilot drill and an exit side drill, with a drill string extending between them. A backreamer is positioned between the drills to enlarge a borehole. The pilot drill pulls and rotates the backreamer. The exit side drill adds segments to the product pipe and pushes the product pipe into the enlarged borehole. The exit side drill is equipped with a rotational disconnect. The disconnect is engaged to allow torque transfer between a motor and a spindle when adding segments to the product pipe. The disconnect is disengaged to prevent torque transfer between the motor and the spindle when pushing the product pipe into the enlarged borehole.

A traction system for connecting and/or disconnecting pipe during well drilling is disclosed. The traction system of the present disclosure is installed above a rotating control device or blowout preventer and may be used with a continuous circulation device. The traction system uses a traction assembly that holds tension on a pipe to lift or hoist the pipe and that has two or more elements in contact with the pipe that spin around the pipe to rotate the pipe.

A wellbore tubular handling system for applying a downforce to wellbore tubulars using a service rig. A downforce system includes a first frame assembly coupled to a slip assembly for engaging wellbore tubulars, a base member connected to the first frame assembly, and an actuator adapted to extend and/or retract the first frame assembly between a first position and a second position, wherein the second position is laterally displaced from the first position along a path formed by extension of the actuator, and wherein the base member is connected to the mast of the service rig. A method of applying a downforce to a wellbore tubular using a downforce system for a service rig.