A handling device for handling drill string components with respect to a rock drill rig including a rotator device supported on a feed beam and arranged to rotate and drive a drill string component. A gripper grips drill string components. The gripper is swingably supported around a first swing axis between: a first position aligned with the active drill string position, and a second position aligned with a delivering position for drill string components. A swing arm includes a support configured to support a drill string component and is swingable around a second swing axis. A guiding beam is fastenable at end regions in connection with respective regions of the first and second swing axis. The guiding beam forms mechanical stops for the gripper in the second position and for the swing arm in the delivering position. Also, a rock drill rig and a method.

A method of interconnecting a drill rod with a drill string by a threaded connection is disclosed. The method includes axially aligning the drill rod with the drill string, rotating the drill rod in a disengagement rotational direction of the threaded connection, identifying a rotational position of the drill rod where thread ends of the rod and the drill string slip over each other, stopping the rotating within a predetermined period of identifying the rotational position, and rotating the drill rod in an engagement direction, such that the drill rod is interconnected with the drill string by the threaded connection.

A method of interconnecting a drill rod with a drill string by a threaded connection is disclosed. The method includes axially aligning the drill rod with the drill string, rotating the drill rod in a disengagement rotational direction of the threaded connection, identifying a rotational position of the drill rod where thread ends of the rod and the drill string slip over each other, stopping the rotating within a predetermined period of identifying the rotational position, and rotating the drill rod in an engagement direction, such that the drill rod is interconnected with the drill string by the threaded connection.

A drill rod gripping apparatus to grip and impart rotational motion to a drill rod including a sled axially mounted at a frame and having first and second jaws moveably mounted at the sled to allow a substantially linear lateral movement across the sled to and from one another. A plurality of rod engagers are mounted at each jaw with at least one of the engagers including an abrasive surface formed from a coating to increase the frictional force between the drill rod and the gripping apparatus.

A drill rod gripping apparatus to grip and impart rotational motion to a drill rod including a sled axially mounted at a frame and having first and second jaws moveably mounted at the sled to allow a substantially linear lateral movement across the sled to and from one another. A plurality of rod engagers are mounted at each jaw with at least one of the engagers including an abrasive surface formed from a coating to increase the frictional force between the drill rod and the gripping apparatus.

The disclosed embodiments provide a drilling rig having a tubular delivery arm that vertically translates the mast in a non-conflicting path with a retractable top drive. The retractable top drive translates a well center path and a rearward retracted path. The tubular delivery arm is operable to deliver tubular stands between a catwalk, stand hand-off, mousehole, and well center positions. An upper racking mechanism moves tubular stands between a racked position of the racking module and a stand hand-off position between the mast and racking module. A lower racking mechanism controls the movement of the lower end of the tubular stand being moved coincident to the movements of the upper racking mechanism. An upper support constraint stabilizes tubular stands at the stand hand-off position. A lower stabilizing arm guides the lower end of tubular stands between the catwalk, stand hand-off, mousehole, and well center positions.

The disclosed embodiments provide a drilling rig having a tubular delivery arm that vertically translates the mast in a non-conflicting path with a retractable top drive. The retractable top drive translates a well center path and a rearward retracted path. The tubular delivery arm is operable to deliver tubular stands between a catwalk, stand hand-off, mousehole, and well center positions. An upper racking mechanism moves tubular stands between a racked position of the racking module and a stand hand-off position between the mast and racking module. A lower racking mechanism controls the movement of the lower end of the tubular stand being moved coincident to the movements of the upper racking mechanism. An upper support constraint stabilizes tubular stands at the stand hand-off position. A lower stabilizing arm guides the lower end of tubular stands between the catwalk, stand hand-off, mousehole, and well center positions.

An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labor intensity and improve operation safety.

An apparatus for tripping oil pipe and a system for automatic well workover comprises an elevator transfer device for transferring an elevator connected with an oil pipe, the elevator transfer device being structured for enabling continuous, automatic tripping operations of the oil pipe. The elevator transfer device comprises a lifting assembly used for lifting and releasing an oil pipe engaged with the elevator, and an elevator transport assembly used for transferring an elevator at a wellhead and/or an elevator on the lifting assembly. The apparatus for tripping oil pipe can lower the labor intensity and improve operation safety.

A drilling calibration method, apparatus, device and medium based on image recognition includes lifting a top drive to a position of a derrick, and receiving and recognizing a target image acquired by an image acquisition apparatus of an operating terminal; calculating a quantity of pixels from the top drive to a rotary table surface in the target image by a data processing unit of the operating terminal; and receiving a height of the top drive measured by a diastimeter by the operating terminal. The height of the top drive is a height from the top drive to the rotary table surface. A pixel relationship table may be established between the quantity of the pixels from the top drive to the rotary table surface and the height of the top drive by a calibration unit of the operating terminal to finish drilling calibration. The pixel relationship table may be determined between the quantity of the pixels from the top drive to the rotary table surface and the height of the top drive by an image recognition technique to finish calibration of drilling, so that influence of a drilling environment to drilling calibration may be reduced greatly.