Abstract: A method for controlling a aircraft with a plurality of drive units, in particular a plurality of electrical drive units, and a controller for flight control. At least one lateral control signal is entered into the controller for flight control in order to initiate a lateral movement of the aircraft. The significant point is that a speed (V) of the aircraft is ascertained through a speed estimation (6) and, depending on the estimated airspeed (V), a commanded roll angle (?C) and a commanded pitch angle (?c), a rate of turn ({dot over (?)}) is calculated. The lateral movement is automatically initiated with the calculated rate of turn ({dot over (?)}) through input of the lateral control signal.

Abstract: Wireless power and telemetry systems for multi-stage completions are provided. Various configurations for couplers, e.g., electro-magnetic couplers, for use in such systems are also provided.

Abstract: A diaphragm wall down-the-hole hammer trenching machine comprises a crane, a guide frame, a push-pull device, cluster down-the-hole hammers, gas collecting hoods, a high-pressure medium pipe or cable, and a slurry discharge pipe. The crane suspends the guide frame; the cluster down-the-hole hammers are connected to the bottom of the guide frame by means of the push-pull device; each cluster down-the-hole hammer comprises a primary hammer and secondary hammers; the plurality of secondary hammers are provided on each primary hammer; one gas collecting hood is provided on the lower part of each primary hammer; the high-pressure medium pipe or cable passes through the guide frame and the push-pull device to enter a primary hammer distribution pipeline to drive the secondary hammers to perform percussive drilling; mud channels are provided in each primary hammer; and the slurry discharge pipe passes through the guide frame and communicates with the gas collecting hoods.

Abstract: A system and method for retention of flight deck preferences operates to control a comprehensive combination of aircraft systems and system configurations enabling a pilot to seamlessly retain and recall the desired preferences based on a plurality of mission related factors. With system control of flight deck physical settings including seat position and shape, display illumination and color and internal and external lighting configurations, the system allows a pilot to save time, effort, and minimize errors of system set up and configuration. With a short entry, or short-range sensing, of the pilot ID, the pilot commands the system and method for retention of flight deck preferences to configure each of the plurality of aircraft systems according to the recalled pilot preference.

Abstract: Systems and methods are disclosed for controlling a downhole tool by encoding a tool control signal in a fluid flow and obtaining a temperature response downhole. In an example, a system for controlling a downhole tool includes a signal transmitter, a signal receiver, and a controller. The signal transmitter is uphole of the tool to be controlled (e.g., at surface) and encodes the tool control signal by varying one or more fluid flow parameters of a fluid flow down a well. The signal receiver is positionable in the well in fluid communication with the fluid flow. The signal receiver detects a temperature response in the fluid flow resulting from varying the one or more fluid flow parameters. A controller controls the downhole tool according to the temperature response.

Abstract: Float collar equipment can be bonded to an inside of a casing string via an adhesive. An annulus can be located around an outside of a float collar housing and the inside of the casing string where the adhesive can be injected. The float collar housing does not require external threads or packers to secure the housing to the inside of the casing string. An injection sub can be used to inject the adhesive into the annulus. After curing or drying, the adhesive bonds the housing to the casing string. A seat, seat housing, or float shoe nose can be attached to the float collar housing via an adhesive or threads. The float collar housing can house one or more float assemblies. The float collar equipment can be bonded to the casing string at a wellsite or remote location prior to use in a cementing operation.

Abstract: Embodiments provide an electric aircraft with a plurality of lift fan assemblies that are configured to provide vertical lift, and one or more pusher propellers that are configured to provide forward thrust. The lift fan assemblies may be coupled to the wings of the aircraft via one or more support structures, and the wings may be coupled to an upper region of the fuselage. The pusher propeller(s) may be coupled to a tailing end of the fuselage. The lift fan assemblies and the pusher propeller(s) may provide thrust and movement in directions that are orthogonal to one another. A control system coupled to the aircraft may control the lift fan assemblies and the one or more pusher propellers to activate, increase in power, and decrease in power. The lift fan assemblies and the one or more pusher propellers may be operated separately, and may be active at different times.

Abstract: A packoff for a wellhead includes a body configured to be positioned in an annulus between the wellhead and an inner tubular above a casing hanger supported in the wellhead, the body including a bore and a lower end, the bore and the lower end being configured to be positioned at least partially around the inner tubular. The lower end is configured to be spaced apart from the casing hanger. The packoff also includes a first load shoulder member configured to be removably connected to the lower end of the body and to engage a surface of the casing hanger so as to form a seal therewith.

Abstract: A downhole tool includes a housing; a first piston arranged within the housing such that it can move axially under the action of fluid flowing through the tool; and an indexer configured to control axial movement of the first piston between a first, second and third axial position. The indexer is configured such that the first piston can be selectively moved into the third position in accordance with a variation of a flow of fluid through the tool. A second piston is movable between a closed position in which fluid flowing through the tool is restricted from communicating with an activation chamber and an open position in which fluid flowing through the tool is permitted to communicate with the activation chamber; wherein the second piston is configured to move between the closed position and the open position in response to the first piston moving to the third axial position.

Abstract: Multi-phase measurements of a fluid in a wellbore can be received and stored by a memory tool for determining flow characteristics of fluid flowing in the wellbore. A system can include a flow meter device, one or more sensors, and a memory tool The flow meter device can include one or more acoustic devices that can be positioned to generate acoustic signals in a wellbore. The one or more sensors can be positioned to detect the acoustic signals from the flow meter device for making multi-phase measurements of fluid with respect to the wellbore. The memory tool can be communicatively coupled to the one or more sensors to receive and store the multi-phase measurements for a predetermined amount of time for determining flow characteristics of the fluid.

Abstract: A remote towing interface is used to couple a towbar to an aircraft having a fuselage and a steerable landing gear. The remote towing interface includes a towbar coupler mounted to the aircraft and configured to releasably couple a towbar to the aircraft. The remote towing interface further includes a sensor and a controller. The sensor is configured to sense a position of the towbar relative to the aircraft when the towbar is coupled to the towbar coupler, and the controller controls the steerable landing gear according to the sensed position of the towbar relative to the aircraft.

Abstract: The low friction wireline standoff improves wireline cable performance during borehole logging operations. The use of low friction wireline standoffs ameliorates the effects of wireline cable differential sticking, wireline cable key-seating, and high wireline cable drags, by reducing or eliminating contact of the wireline cable with the borehole wall during the logging operation. The low friction wireline standoff comprises external wheels mounted on two finned half shells that clamp onto the wireline with precision cable inserts which are manufactured to fit a wide range of logging cables. The wheels reduce the cable drag down-hole resulting in lower surface logging tensions, aiding conveyance in deep and deviated wells.

Abstract: A release mechanism for a jarring tool is formed by a plurality of segmented release lugs. Each lug includes a plurality of axial spaced projections on an inner surface and a plurality of grooves on an outer surface. The projections have either different widths or are separated by varying distances and releaseably engage corresponding grooves in a mandrel located within a housing of the tool. The release lugs are positioned between a trigger sleeve and the mandrel.

Abstract: An electric bonnet includes a housing; a guide piston disposed in the housing; an electric motor having a motor shaft; a rear housing connected to the housing; a gearbox assembly disposed in the rear housing, the gearbox assembly being coupled to the motor shaft of the electric motor; and a roller screw assembly disposed in the rear housing. A first end of the roller screw assembly is connected to the gearbox assembly, and a second end of the roller screw assembly is connected to the guide piston. Rotation of the motor shaft of the electric motor transmits rotary motion to the gearbox assembly, which transforms the rotary motion into linear motion using the roller screw assembly. The linear motion of the roller screw assembly actuates the guide piston.

Abstract: A fall arrest safety system for overhead rotating tools includes a tether ring assembly having an inner ring and an outer ring. The inner ring clamps onto the rotating tubular and the outer ring is tethered to the top drive unit. In the event of a disconnect, the tethered assembly holds the load.

Abstract: A technique facilitates control over a downhole well operation. The technique utilizes an electronic control system for controlling actuation of a downhole application-specific attachment. According to an embodiment, the system comprises a universal actuator module which may be selectively combined with a variety of application-specific attachments, e.g. well tools. The universal actuator module is electrically powered via, for example, electricity supplied to drive an electric motor which, in turn, may be used to drive a hydraulic pump or other type of mechanical device. Additionally, a given application-specific attachment can be readily interchanged with other application-specific attachments (e.g. well tools) for performing a desired downhole operation or operations.

Abstract: The invention relates to a device for clearing a helix gap of an auger, comprising a retainer for holding the device on a mast of a drill, a guide tube which surrounds the auger in portions and is mounted on the retainer, and a clearing element which engages in the helix gap and is mounted on the retainer so as to be freely rotatable about the drilling axis. According to the invention it is provided for the guide tube to be mounted on the retainer so as to be freely rotatable about the drilling axis, for the clearing element to be firmly attached to the rotatably mounted guide tube, for the guide tube to be axially fixed in the direction of the drilling axis, for the purpose of clearing, and for the clearing element, together with the guide tube, to be able to be caused to rotate about the drilling axis by means of a pulling procedure of the auger for the purpose of clearing the auger.

Abstract: A system includes a well fluid diversion assembly configured to pump a volume of wellbore fluid from a first well to a second well of a single drilling or production platform or of different drilling or production platforms. The diversion assembly includes a first flexible tubing releasably connected to an outlet valve of a wellhead assembly of the first well and a second flexible tubing releasably connected to a wellhead assembly of the second well. The diversion assembly also includes a flowmeter and a sampling valve configured to selectively flow a portion of the volume to a fluid sampling port.

Abstract: Devices and methods of a pod that deploys from an aircraft or vehicle and descends to safely land. The pod is configured to be attached to an aircraft or vehicle. The pod includes walls that extend around and form a contained interior space that houses one or more travelers or cargo containers. During flight of the aircraft or vehicle, the pod deploys from the aircraft or vehicle while at an elevation above ground. A landing location is determined for the pod. While the pod is descending, the pod is steered towards and lands at the landing location.

Abstract: An exposed resistive heating element is coupled to an electric power supply. The exposed resistive heating element is malleable such that it can be wrapped around a component to be heated. A controller is coupled to the power supply and the exposed resistive heating element. The controller is configured to regulate current exchanged between the exposed heating element and the electric power supply.