NABORS DRILLING TECHNOLOGIES USA, INC.

A system that can include a centralizer configured to be radially positioned between a tool and an internal bore of a tubular, wherein the centralizer is configured to engage the internal bore and the tool via a plurality of biasing devices circumferentially spaced away from each other about a center axis of the centralizer. A method can include installing a biasing device in a plurality of protrusions that extend radially outward, extending a portion of each biasing device past an outer radial surface of a respective protrusion to engage a tubular, and extending a portion of each biasing device past an inner radial surface of a central bore of the centralizer to engage a tool, where the first portion and the second portion are configured to substantially align a center axis of the tool with a center axis of the tubular when the tool is installed in the tubular.

A system that can include slips configured to selectively engage a tubular string that extends into a wellbore, a slips lifter configured to selectively raise or lower the slips, and a link configured to decouple the slips from the slips lifter when the slips are rotated relative to the slips lifter. A method that can include operations of coupling a slips lifter, via a link, to slips on a rig floor, engaging the slips to a tubular, rotating the slips relative to the slips lifter, and decoupling the slips from the slips lifter by decoupling a first element of the link from a second element of the link in response to rotation of the slips.

A linear actuator assembly that can include a drive shaft, and a piston, where rotation of the drive shaft extends or retracts the piston at a speed that automatically changes based on an opposing force applied to the piston. A system that can include a piece of rig equipment configured to engage an object, with one or more linear actuator assemblies incorporated into the piece of rig equipment, where the linear actuator assemblies selectively engage the object and each of the linear actuator assemblies can include a drive shaft, and a piston, and where rotation of the drive shaft extends or retracts the piston at a speed that automatically changes based on an opposing force applied to the piston.

A method of using dual-use pump systems to reduce greenhouse emissions and completion costs that includes positioning a first pump system (“FPS”) and a drilling apparatus (“DA”) at a first well pad and a second pump system (“SPS”) at a second well pad. The method includes performing a drilling operation using the FPS and the DA on at the first well pad, and then moving the DA to the second well pad to couple with the SPS. A completion unit is then coupled to the FPS at the first well pad. While the DA performs a drilling operation using the SPS at the second well pad, the completion unit performs a completion operation using the FPS at the first well pad.

A drawworks brake performance assessment system comprising a drawworks comprising a rotatable spool; a braking system comprising a rotor associated with the rotatable spool and at least one hydraulic disc brake comprising a master cylinder assembly and a caliper assembly comprising a caliper and opposing brake pads, wherein the master cylinder assembly is operable with the caliper assembly to manipulate one of the opposing brake pads to apply a clamping force to the rotor; and a brake sensor system comprising a sensor and an operations module, the sensor being operable to measure a displacement distance between one of the opposing brake pads and a surface of the rotor, and to output corresponding sensor data to the operations module that is operable to receive and process the sensor data and to determine one or more performance characteristics of the braking system based on the sensor data.

A drilling rig apparatus includes first and second industrial handling robots, a catwalk, and a powered mousehole collectively configured for automated red zone tubular handling. One of the industrial handling robots is secured to the drilling rig floor while the other is mounted on a track that allows movement out of the way of manual tubular operations, optionally off the drilling rig floor. The catwalk lifts each tubular from a staging area into position for grasping by the track-mounted industrial handling robot, with an orientation closer to vertical than horizontal. The powered mousehole moves tubulars held therein up or down to facilitate assembly with additional tubulars by the industrial handling robots.

A system that can include a centralizer configured to be radially positioned between a tool and an internal bore of a tubular, wherein the centralizer is configured to engage the internal bore and the tool via a plurality of biasing devices circumferentially spaced away from each other about a center axis of the centralizer. A method can include installing a biasing device in a plurality of protrusions that extend radially outward, extending a portion of each biasing device past an outer radial surface of a respective protrusion to engage a tubular, and extending a portion of each biasing device past an inner radial surface of a central bore of the centralizer to engage a tool, where the first portion and the second portion are configured to substantially align a center axis of the tool with a center axis of the tubular when the tool is installed in the tubular.

A system that can include a crown deck with a handrail positioned along an outer perimeter, a support structure mounted to the crown deck, where the support structure can horizontal supports rigidly attached to vertical supports, the horizontal supports being supported at a vertical elevation above the crown deck by the vertical supports, which are welded to a top surface of the crown deck, with light fixture assemblies mounted to the horizontal supports, with each one of the light fixture assemblies being rotatable, relative to the horizontal supports, between a stowed position and a deployed position, where the stowed position locates a respective one of the light fixture assemblies radially spaced away from the outer perimeter of the crown deck and toward a center of the crown deck.

A top drive that can include a stationary portion, a rotary portion rotationally coupled to the stationary portion, the rotary portion being configured to rotate about a center axis, a drag chain with a first end coupled to the stationary portion and a second end coupled to the rotary portion, a first circular path with a first radius relative to the center axis, and a second circular path with a second radius relative to the center axis, wherein the first radius is different from the second radius, wherein the drag chain comprises a first portion that is disposed along the first circular path and a second portion that is disposed along the second circular path, and wherein a length of the first portion along the first circular path increases or decreases as the rotary portion rotates relative to the stationary portion.

An apparatus and method that form closed-loop system(s) between a downhole system that includes an RSS and a surface control system, to improve stability and performance assurance of the RSS. The apparatus and method account for the actual downhole conditions experienced by the RSS, the actual positioning of the RSS, and historical performance of the surface systems such as the mud pump system, the rotary drive system, and the draw works. These closed-loop systems generate and optimize parameters or target outputs, instructions to surface systems, and instructions for the RSS itself.