A single-pass type drilling machine includes a guide tower, a string of drilling rods, an extension element having an upper end and a lower end with the lower end being coupled with an upper end of the string of drilling rods, a rotary head slidably coupled with the guide tower, and a detection system. The rotary head and the extension element are mutually slidable and arranged to couple with each other in an upper end stop position, where the rotary head is coupled with the extension element substantially at the upper end of the extension element. The rotary head is coupled with the extension element at a lower position with respect to the upper end stop position in at least one locking position. The detection system detects the reaching of the at least one locking position by detecting at least the mutual axial position of the extension element and the rotary head.

A rotary drilling rig includes a vertical mast and a rotary head that can vertically move along the mast with respect to a work surface. To move the rotary head along the mast, a hydraulic feed actuator is connected with the rotary head via a wire rope feed system including a hoist rope and a pulldown rope. To maintain the hoist and pulldown ropes in tension and prevent them from dislodging from the respective pulleys of the wire rope system, the hoist and pulldown ropes can be connected to respective hoist and pulldown tensioning actuators. The hoist actuator can be associated with a hoist hydraulic circuit and the pulldown tensioning actuator can be associated with a separate pulldown hydraulic circuit.

An automated slide drilling system (ASDS) may be used with a drilling rig system to control slide drilling. The ASDS may autonomously control slide drilling without user input during the slide drilling. The ASDS may further support a transition from rotary drilling to slide drilling to rotary drilling without user input during the transitions. The ASDS may also support user input and user notifications for various steps to enable manual or semi-manual control of slide drilling by a driller or an operator.

Methods and systems for optimizing timing for drilling and tripping operation. An example method may include receiving a plurality of sensor data characterizing rig equipment and tripping status. The method may include identifying a plurality of multi-thread rig states based on the plurality of sensor data. The method calculates a plurality of optimal rig state characteristics (RSCs), wherein the plurality of optimal RSCs are calculated based on the plurality of sensor data as it relates to the plurality of multi-thread rig states. The method also performs a tripping operation with the rig equipment after applying the plurality of optimal RSCs. The method may also gather a plurality of updated sensor data from the rig equipment during the tripping operation for a recalculation of the plurality of optimal RSCs.

Systems and methods for automated filtering and normalization of logging data for improved drilling performance may enable smoothing and amplitude scaling of log data for meaningful comparison and analysis without scaling artefacts. The logging data may be collected from downhole sensors or may be recorded by a control system used for drilling. A computer implemented method may enable industrial scale automated filtering and normalization of logging data, including calibration to a known standard. In particular, the filtering and normalization may be used for stratigraphic analysis to correlate true vertical depth to measured depth along a wellbore.

The disclosure provides an earth auger comprising a supporting assembly, a drill pipe assembly including a drill pipe, a driving assembly arranged on the supporting assembly to drive the drill pipe assembly to work and a brake assembly including a trigger component that brakes the driving assembly and a brake lever connected through a first pivot and matched with the trigger component. The projection part of the brake lever on the plane perpendicular to the axis of the drill pipe is located outside the projection of the supporting assembly on the plane perpendicular to the axis of the drill pipe. The earth auger provided by the disclosure can effectively prevent accidents and improve the safety performance of the earth auger.

The disclosure provides an earth auger comprising a supporting assembly, a drill pipe assembly including a drill pipe, a driving assembly arranged on the supporting assembly to drive the drill pipe assembly to work and a brake assembly including a trigger component that brakes the driving assembly and a brake lever connected through a first pivot and matched with the trigger component. The projection part of the brake lever on the plane perpendicular to the axis of the drill pipe is located outside the projection of the supporting assembly on the plane perpendicular to the axis of the drill pipe. The earth auger provided by the disclosure can effectively prevent accidents and improve the safety performance of the earth auger.

The aspects described herein assist in mitigating vibrations arising from torsional energy accumulating on a drill string in a wellbore during drilling operations. A first sensor obtains torque measurement data at or near the top drive of the drilling rig. A second sensor may obtain weight on bit information. The controller receives the measured data, combines it with a first gain to obtain a first output value and a second gain to obtain a second output value. The first output value is provided to the top drive to adjust a speed of operation of the top drive, and the second output value is provided to the axial drive providing motion along a vertical axis of the drilling rig to adjust a speed of the vertical motion. In combination, the adjustments to the top drive and axial drive movements mitigate stick-slip in an automated manner more effectively than either individually.

A top drive for well operations having a gearbox, a traction motor connected to the gearbox so that a motor shaft of the traction motor extends into the gearbox, a quill extending into the gearbox, a gear train positioned within the gearbox and mechanically connected between the traction motor shaft and the quill, and a connector positioned in the gear train, wherein in a coupled configuration the connector communicates torque through the gear train, and wherein in a decoupled configuration the connector does not communicate torque through the gear train. A method for operating a top drive by applying a first torque to a quill with two traction motors, disconnecting one of the traction motors from the quill, and applying a second torque less than the first torque to the quill with the non-disconnected traction motor.

A top drive for well operations having a gearbox, a traction motor connected to the gearbox so that a motor shaft of the traction motor extends into the gearbox, a quill extending into the gearbox, a gear train positioned within the gearbox and mechanically connected between the traction motor shaft and the quill, and a connector positioned in the gear train, wherein in a coupled configuration the connector communicates torque through the gear train, and wherein in a decoupled configuration the connector does not communicate torque through the gear train. A method for operating a top drive by applying a first torque to a quill with two traction motors, disconnecting one of the traction motors from the quill, and applying a second torque less than the first torque to the quill with the non-disconnected traction motor.