Abstract: A downhole tool comprising a bidirectional slip having a slip frame and at least two slip banks. The slip frame including a plurality of slats spaced radially about a center ring. The slip banks have a first gripping bank and a second gripping bank. The first gripping bank is slideably received in a first slot in the slip frame, and the second gripping bank is slideably received in a second slot in the slip frame such that the slip bank has a set position in which the first gripping bank and second gripping bank extend radially outward from the slip frame so as to be able to engage the casing, and the slip bank has an unset position in which the slip bank is positioned radially inward from the set position.

Abstract: A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.

Abstract: A selective service tool has a key prop mandrel that is slidably coupled to and extends over a cage mandrel. The lower end of the key prop mandrel has key props that extend from its lower end. A key has first and second opposing sections located about an outer perimeter and adjacent an upper end of the locator mandrel, wherein the key props are slidable with respect to the key and are positionable between the first section and the outer perimeter of the locator mandrel and the second section and the outer perimeter of the locator mandrel, respectively, when the key is in a deployed position.

Abstract: A molded tool is formed from a compression mold material and a corresponding method of manufacture is disclosed. The molded tool has a first end, a second end separated from the first end by a sidewall formed from a heat-sensitive polymeric matrix. The sidewall has an interior surface with a first strength and an exterior surface with a second strength, the first strength being greater than the second strength. Further, the molded tool is formed by a method that includes exerting an expansive force within an interior of the compression mold material, the expansive force having a directional vector along the central axis.

Abstract: A frac plug is provided. The frac plug includes a plug body, a sealing element, and a slip. The plug body includes a first sub and a second sub. The first sub includes a first composite material outer sleeve, and a first metal inner core engaged with and structurally supporting the first composite material outer sleeve. The second sub includes a second composite material outer sleeve, and a second metal inner core engaged with and structurally supporting the second composite material outer sleeve. The sealing element is circumferentially disposed about the first sub and, when actuated, seals an annulus between the frac plug and a tubular section. The slip is disposed between the first sub and the second sub and, when actuated, engages the tubular section.

Abstract: Degradable downhole tools that include a doped aluminum alloy may degrade via a galvanic mechanism. More specifically, such a degradable downhole tool may comprise at least one component of the downhole tool made of a doped aluminum alloy that at least partially degrades by micro-galvanic corrosion in the presence of water having a salinity of greater than about 10 ppm, wherein the doped aluminum alloy comprises aluminum, 0.05% to about 25% dopant by weight of the doped aluminum alloy, less than 0.5% gallium by weight of the doped aluminum alloy, and less than 0.5% mercury by weight of the doped aluminum alloy, and wherein the dopant is selected from the group consisting of iron, copper, nickel, tin, chromium, silver, gold, palladium, carbon, and any combination thereof.

Abstract: A differential fill valve assembly for application in float collars or shoes in a well casing can provide a mechanism for releasing a flapper valve by advancing and activating sleeve of the valve assembly. The valve assembly includes a backpressure flapper valve and an activating sleeve slidably disposed within a housing. The activating sleeve initially maintains the flapper valve in an open position. The activating sleeve provides at least one ramp on an inner surface thereof. Fluid flow through the activating sleeve generates a pressure differential, across the activating sleeve that produces a net force on the activating sleeve to drive the activating sleeve downward, releasing the backpressure flapper valve.

Abstract: A diverter assembly includes a tubing segment and one or more sleeve members disposed therein. The tubing segment includes apertures that are selectively alignable with apertures of an inner sleeve disposed within the tubing segment. The tubing segment includes a series of stops (e.g., shear pins) to arrest movement of the first sleeve within the bore of the tubing segment. A first one or more ball seats are included in the first sleeve such that deployment of a first ball and pressurization of the well above the first ball causes a first set of shear pins to fail, thereby allowing the first sleeve to slide downhole to cause apertures of the sleeve to align with apertures of the tubing segment, thereby causing fluid to flow to an annulus between the tubing segment and wellbore wall.

Abstract: An improved method and apparatus for dropping a ball, plug or dart during oil and gas well operations (e.g., cementing operations) employs a specially configured valving member with curved and flat portions that alternatively direct fluid flow through a bore or opening in the valving member via an inner channel or around the periphery of the valving member in an outer channel. In one embodiment, the ball(s), dart(s) or plug(s) are contained in a sliding sleeve that shifts position responsive to valve rotation. An optional indicator indicates to a user or operator that a ball or plug has passed a selected one of the valving members.

Abstract: A pressure regulator includes a body including a regulated fluid volume, at least one vent passage and fluid supply passage, a dampening piston bore and one regulated fluid volume outlet passage, a regulated fluid pressure piston, the regulated fluid pressure piston having a first side exposed to the regulated fluid volume, and a second surface exposed outwardly of the body, an external biasing member contactable with the second surface of the piston and providing a force on the piston directed inwardly of the body, a gate connected to the piston and having a first seal and a second seal, a dampening piston disposed in the dampening piston bore, the dampening piston disposed between a dampening volume and the regulated fluid volume, the dampening piston including a bore extending therethrough and communicable between the regulated fluid volume and the dampening volume, the bore including an orifice position therein, and, an opening extending from the dampening volume outwardly the body, the opening sealable b

Abstract: A subsurface tool adapted to extend within a wellbore that includes an outer sleeve defining a first passageway; an inner sleeve disposed within the first passageway to form an annulus between the outer sleeve and inner sleeve; and a first annular diaphragm extending between the outer sleeve and the inner sleeve to fluidically isolate a first portion of the annulus from and a second portion of the annulus; wherein when the tool is in a first configuration, the first annular diaphragm is integrally formed with the inner sleeve and outer sleeve to form a single-component tool.

Abstract: Computerized method, apparatus, and systems for management of a slurry injection well and the associated surface facility include a network for connectivity of facility equipment, sensor equipment, and control software operated on a computer system. The method utilizes real time and historical data of injection and slurry parameters in conjunction with computer simulations performed on a computer-modelled reservoir to predict well behavior during an injection event. The system determines optimized injection operation schedules and can recommend and implement changes to an injection operation while it is in process, including through automated equipment control.

Abstract: Systems and methods for producing fluids from a subterranean well include introducing expandable beads into a target region of a production zone of the subterranean well, the expandable beads being formed of thermally expandable material in an unexpanded condition with a first diameter. A radial confining stress is increased and a hoop stress is decreased within the target region by thermally expanding the expandable beads so that the beads are in an expanded condition with a second diameter, the second diameter being greater than the first diameter.

Abstract: A well screen for use in a subterranean well can include a filter with a nano-particle reinforcement. A method of constructing a well screen can include treating a filter with a nano-particle reinforcement.

Abstract: Inflow control devices that can be used for both viscous and less viscous hydrocarbons. Optimized configurations for passive inflow control devices or ICDs having two types of fluidic pathways are combined in the same device or well in series or in parallel. Also provided, are well configurations that can be used for e.g., steam assisted oil recovery methods, wherein steam flashing is prevented by included dual type passive inflow control devices in the completion.

Abstract: Hydrocarbons in a subterranean reservoir are recovered using Expanding Solvent-Steam Assisted Gravity Drainage (ES-SAGD), including recovering hydrocarbons while reducing the solvent retention in the reservoir. Reducing solvent retention improves process economics.

Abstract: A method, system, and associated apparatus are described for installing, inventorying, actuating, and/or accessing down-hole equipment in a wellbore. This comprises tagging a casing by inserting permanent components of material compositions within sections along the length of a casing. Inserted components and/or portions of an original section function as unique readable active and/or passive markers. The piping system is at least one pipe having a plurality of markers placed in radial sections strategically arranged with independently identical or different material compositions or embedded in a length of the wellbore casing. The sections function as markers forming a readable pattern readable by the reader(s). The reader is one of or a combination of any of the group consisting of a plug, a probe, a sensor, and/or a computer for reading markers. The reader travels in either a forward or backward direction.

Abstract: A natural gas processing system is mounted on at least one mobile platform that is transported to a natural gas source, such as a well. A liquid removal tank separates liquid contaminants from the gas. A particulate filter removes particulates from the gas. A membrane separates the natural gas into a retentate gas and a permeate gas. A gas compressor is selectively connected either upstream of the membrane or downstream of the membrane. For low pressure source gas, the upstream connection will compress the natural gas before entering the membrane. For high pressure source gas, the downstream connection will compress the natural gas after exiting the membrane. An electrical generator and an air compressor are provided. A process control is connected to all the valves in the system, all instruments, the gas compressor, the electrical generator, and the air compressor. The process control monitors and controls the natural gas processing system.

Abstract: A subsea oil filtration system is described that forms a closed circuit with and is mounted on or connected to a subsea rotating machine. According to some embodiments, the oil filtration system enables the removal of dirt and/or water that has entered the barrier fluid/oil system whether it comes from the Hydraulic Pressure Unit (HPU), from the umbilical or from other parts of the oil contained lubrication and/or barrier fluid systems.

Abstract: Method and system for separation of produced water into a water fraction, a solids fraction and a hydrocarbon fraction, comprising feeding produced water into a collapsible flexible bag maintained subsea by a protection structure; operating the flexible bag at an overpressure and thereby providing a predefined geometry of the flexible bag; maintaining the produced water in the flexible bag to allow for gravitational separation of the solids fraction with a higher density than water in a lower section and optionally separation of the hydrocarbon fraction with a lower density than water in an upper section; removing the water fraction from a section above the lower section; optionally removing hydrocarbons from the upper section and replacing the flexible bag to remove the solids fraction.

Abstract: A method and apparatus for removing dissolved gas from a coal bed or other type of gas bearing formation is provided.

Abstract: A method and system for an electromagnetic sensor. A method may comprise introducing an electromagnetic induction tool into a wellbore. The electromagnetic induction tool may comprise an insulated section and an electromagnetic device. The method may further comprise performing a first measurement with the electromagnetic induction tool; adjusting an impedance parameter of the insulated section; performing a second measurement with the electromagnetic induction tool; including the first measurement and the second measurement in an inversion process, wherein the inversion process calculates the downhole electromagnetic parameters; and adjusting at least one operational parameter of a well operation based at least in part on the downhole electromagnetic parameters. An electromagnetic sensor system may comprise a conductive body, an electromagnetic device, and a microcontroller configured to adjust an impedance parameter of the insulated section.

Abstract: A downhole tool orientation determination system to determine a radial orientation of a tool conveyed downhole into a pipe via a carrier and a method of determining a radial orientation of a tool conveyed downhole into a pipe via a carrier are described. The system includes an orientation tool conveyed downhole by the carrier that conveys the tool, and a distributed acoustic sensor (DAS). The DAS includes an optical fiber disposed axially along an outer surface of the pipe; and a processor to determine an orientation of the orientation tool with respect to the optical fiber based on a measurement by the optical fiber at different rotational positions of the orientation tool. The processor determines the radial orientation of the tool with respect to the optical fiber based on the orientation of the orientation tool with respect to the optical fiber.

Abstract: A technique facilitates pressure testing of a seal positioned between a wellhead and a subsea tree system. The technique utilizes an isolation sleeve which may comprise a mandrel having an internal mandrel passage as well as a lower seal and an upper seal positioned along an exterior of the mandrel. The isolation sleeve also may comprise a retention member mounted along the exterior of the mandrel. The retention member, e.g. a retention nut, may be rotatably mounted about the exterior of the mandrel and may comprise external threads or other mechanism for securing the isolation sleeve to the subsea tree system. In some embodiments, the upper end of the isolation sleeve may be constructed in a uniform manner for insertion into a universal profile of the subsea tree system.

Abstract: A downhole electromagnetic modular system has two or more antenna modules incorporated into a drill string, each antenna module comprising an antenna sub and an antenna. The antenna modules may be spaced apart by one or more spacer modules, battery modules, spacer-battery modules, and/or downhole tools. The connected modules (and/or downhole tools) provide an electrical pathway throughout the modular system. An antenna module may have an inner connector formed on its antenna sub between the antenna of that antenna module and a retainer of that antenna sub. An antenna module may have two antenna groups located towards opposite ends of the antenna module and spaced apart by more than half the length of the antenna module. If an antenna group has more than one antenna, those antennas may be co-located or in proximity to one another. A probe may be held fixed by the retainer of the inner pin connector.

Abstract: An apparatus and system for generating pressure pulses for enhancing and completing a well bore within a coiled tubing assembly including: a CT-MWD-FTD tool longitudinally and axially positioned within the center of a main valve assembly including a main valve. The drilling fluid is subsequently split into both an inlet main fluid stream and a pilot fluid stream, wherein the pilot fluid stream subsequently flows such that the pilot fluid recombines with the main flow stream to become a main exit fluid flow. The main exit fluid flow then proceeds toward a motor housing wherein one or more annular pressure sensors measure the pressure of fluid flow with sensors that send signals to a Digital Signal Processor (DSP) that controls flow throttling devices which generate controllable, large, rapid and measurable energy pulses.

Abstract: One methods for in-situ characterization of a reservoir rock includes: (a) sealing an interval corresponding to a selected depth or depths within the subterranean formation; (b) injecting a displacement fluid into the interval, wherein the displacement fluid displaces a reservoir fluid stored in the reservoir rock; (c) monitoring movement of the displacement fluid or the reservoir fluid in the reservoir rock; and (d) assessing wettability of the reservoir rock based on (c) or determining recovery rate of the reservoir fluid.

Abstract: Disclosed are methods and systems for determination of fluid contamination of a fluid sample from a downhole fluid sampling tool. A method may comprise obtaining a fluid sample, obtaining input parameters, wherein the input parameters comprise fluid properties obtained from measurement of the fluid sample and mud filtrate composition, obtaining initial values of iterative parameters, determining component mole fractions of the reservoir fluid using the initial values of the iterative parameters in a mole fraction distribution function, determining calculated fluid properties of the reservoir fluid using equation of state flash calculating, and repeating steps of determining component mole fractions and determining calculated fluid properties and further obtaining updated values of the iterative parameters for use in the mole fraction distribution function until a comparison of one or more of the calculated fluid properties with one or more of the input parameters is within a tolerance error.

Abstract: A bit assembly includes a base block and a bit holder having a forward body portion and a shank. The forward body portion includes an enlarged tire portion to deflect material and particles removed from the terra firma and protect the base block from damage. The base block includes a base and a shortened front end. The enlarged tire portion has dimensions that cover at least all of the shortened from end. The dimensions of the tire portion can also extend beyond the dimensions of the shortened front end.

Abstract: A vane cell pump, includes a rotatable rotor having vanes which can be moved back and forth; an end plate with a pressure passage for discharging pressure fluid and a supply passage for supplying a sub-vane region with pressure fluid; a flow channelling device on an end face of the end plate facing axially away from the rotor; a first outlet region for discharging a first partial flow of the pressure fluid; a second outlet region for discharging a second partial flow of the pressure fluid; a first flow path along which the first partial flow flows through the first outlet region; a second flow path connecting the pressure passage to the supply passage, diverges from the first flow path and is delineated by the flow channelling device; and a third flow path connecting the supply passage to the second outlet region and delineated by the flow channelling device.

Abstract: A disk assembly includes a first disk, a second disk and a third disk. The first disk is engaged with a compressor section of a gas turbine. The second disk is engaged with a turbine section of the gas turbine. The third disk is disposed between the first and second disks and transfers a rotational torque applied to the second disk to the first disk. A through-hole is defined through the third disk along an axial direction of the gas turbine. A distance between the third disk and a tie rod is less than each of distances between the first and second disks and the tie rod, such that spaces are defined by surfaces of the third disk respectively in communication with the compressor section and the turbine section.

Abstract: A compressor wheel (1) of a compressor (6A) of an exhaust-gas turbocharger (6), having a hub (2); and having a multiplicity of non-recessed blades (3) which are arranged on the hub (2) and which have in each case a blade leading edge (3A) and a blade trailing edge (3B). The blade leading edges (3A) define an inlet area (A1) which is the area swept by the blade leading edges (3A) as the compressor wheel (1) rotates. The blade trailing edges (3B) define an outlet area (A2) which is the area swept by the blade trailing edges (3B) as the compressor wheel (1) rotates. The ratio A2/A1 is >60%.

Abstract: The invention relates to a device for producing, repairing and/or replacing a component, particularly an aircraft component, by means of a powder that can be solidified by energy radiation of an energy radiation source, characterized in that the device comprises an application unit that is designed such that the powder can be applied onto an uneven surface by means of the application unit.

Abstract: In a first aspect, there is a method of making a rotor blade, including designing at least one of an upper skin, a lower skin, a support network, and components therefor; and forming at least one of the upper skin, the lower skin, a support network, and components therefor using an additive manufacturing process. In a second aspect, there is an airfoil member having a root end, a tip end, a leading edge, and a trailing edge, the airfoil member including an upper skin; a lower skin; and a support network having a plurality of interconnected support members in a lattice arrangement and/or a reticulated arrangement, the support network being configured to provide tailored characteristics of the airfoil member. Also provided are methods and systems for repairing an airfoil member.

Abstract: An end plate of a blade has a gas path surface facing a combustion gas channel side, an end surface along an edge of the gas path surface, a plurality of channels, and a skirt hole. The plurality of channels extend along the direction of a partial end surface, which is a portion of the end surface, and are arranged in a perspective direction with respect to the partial end surface. The skirt hole opens at the partial end surface. The skirt hole communicates with an inside channel, which is the channel of the plurality of channels that is farthest from the partial end surface.

Abstract: An airfoil according to an example of the present disclosure includes, among other things, an internal wall and an external wall. The external wall defines pressure and suction sides between a leading edge and a trailing edge, and the airfoil section defines a mean camber line that extends between the leading and trailing edges to bisect a thickness of the airfoil section. A first cavity and a second cavity are separated by the internal wall. The second cavity is bounded by the external wall at the leading edge. At least one crossover passage within the internal wall connects the first cavity to the second cavity. The crossover passage defines a passage axis. The passage axis defines a passage angle with respect to the mean camber line such that the passage axis extends transversely from the mean camber line to intersect a surface of the second cavity.

Abstract: The present disclosure is directed to a rotor blade for a turbomachine. The rotor blade includes an airfoil defining a cooling passage extending between a root and a tip of the airfoil. The airfoil further defines a pocket positioned between the cooling passage and an exterior surface of the airfoil and spaced apart from the cooling passage and the exterior surface. The pocket provides a thermal impediment between the cooling passage and the exterior surface of the airfoil.

Abstract: Airfoil bodies having a first core cavity within the airfoil body and a second core cavity located within the airfoil body and adjacent the first core cavity, wherein the second core cavity is defined by a first cavity wall, a second cavity wall, a first exterior wall, and a second exterior wall, wherein the first cavity wall is located between the second core cavity. The first cavity wall includes a first surface angled toward the first exterior wall and a second surface angled toward the second exterior wall and at least one first cavity impingement hole is formed within the first surface. A funneling feature extends the second core cavity along the first exterior wall to funnel the first impingement flow along the first exterior wall.

Abstract: A component for a gas turbine engine includes, among other things, an airfoil that includes a pressure sidewall and a suction sidewall that meet together at both a leading edge and a trailing edge, the airfoil extending radially from a platform to a tip, a tip pocket formed in the tip and terminating prior to the trailing edge, and one or more heat transfer augmentation devices formed in the tip pocket.

Abstract: A gas turbine includes a housing; a rotor rotatably provided in the housing; a turbine blade to receive rotating force from combustion gas and rotate the rotor; a turbine vane to guide a flow of the combustion gas toward the turbine blade, the turbine vane having a turbine vane cooling passage for delivering cooling fluid to an inner wall of the turbine vane; and an impingement plate installed in the turbine vane cooling passage, the impingement plate having a plurality of injection holes through which the cooling fluid is injected onto the inner wall of the turbine vane, the injection holes formed at predetermined locations of the impingement plate, wherein the injection holes are formed differently depending on locations of the injection holes. A temperature gradient or thermal stress may be prevented from occurring in the turbine vane that is cooled by cooling fluid ejected from the impingement plate.

Abstract: An airfoil for use in a turbomachine includes a pressure sidewall and a suction sidewall coupled to the pressure sidewall. The suction sidewall and the pressure sidewall define a leading edge and a trailing edge, the leading edge and the trailing edge define a chord distance. The airfoil includes a tip portion extending between the pressure sidewall and the suction sidewall. The tip portion includes a planar section and a recessed section. The recessed section extends adjacent to the planar section such that a thickness of the planar section is less than a thickness of the airfoil. The recessed section is offset a predetermined distance from the leading edge and the trailing edge along the chord distance.

Abstract: A turbine for a turbine engine, the turbine comprising a rotor including blades the radially external periphery of which includes at least one first wiper radially extending outwards, sealing means radially extending about the blades and including a ring made of abradable material, with the radially external ends of the wipers cooperating with said ring made of abradable material so as to form a labyrinth-type seal, wherein said ring includes at least one first portion axially extending upstream of the first wiper and a second portion, different from the first portion, axially extending downstream of the first wiper, with the first portion and/or the second portion including a groove, wherein the first wiper has been inserted, with said groove being defined by the first portion and by the second portion.

Abstract: A system includes a blade segment having a blade and a mounting segment coupled to the blade. Additionally, the mounting segment includes a first contact face and a second contact face, wherein the first and second contact face are concave with respect to a longitudinal axis of the blade segment. To reduce stresses within the mounting segment, the mounting segment further includes a lower face coupling the first contact face and the second contact face, wherein the lower face is convex across the longitudinal axis of the blade segment.

Abstract: A wheel assembly for a gas turbine engine includes a disk, a plurality of blades, and a plurality of platforms. The disk is configured to rotate about an axis during operation of the gas turbine engine. The blades each include a circumferentially extending attachment feature that is received in the disk. The platforms each have an axially extending attachment feature that is received in the disk.

Abstract: A pitch actuation system for a turbine engine propeller, comprising an actuator, a movable part of which is designed to be connected to blades of the propeller so as to rotate said blades relative to blade pitch-setting axes, wherein the actuator is an electromechanical actuator and comprises at least two electric motors for driving a common rotor, and a transmission screw rotated by the common rotor, and in that the system further comprises a nut, through which the transmission screw passes and which is designed to cooperate with the blades so as to move them.

Abstract: A stator assembly for a gas turbine engine includes an annular outer shroud, an annular inner shroud radially spaced from the outer shroud and a plurality of stator vanes extending from the outer shroud to the inner shroud. A volume of potting is located at the inner shroud and at the outer shroud to retain the plurality of stator vanes thereat. A stator and case assembly for a gas turbine engine includes a case defining a working fluid flowpath for the gas turbine engine and a stator assembly located at the case. The stator assembly includes an annular outer shroud secured to the case, an annular inner shroud secured to the case and a plurality of stator vanes extending from the outer to the inner shroud. A volume of potting is located at the inner shroud and at the outer shroud to retain the plurality of stator vanes thereat.

Abstract: A nozzle has an airfoil, and the nozzle is configured for use with a turbomachine. The airfoil has a throat distribution measured at a narrowest region in a pathway between adjacent nozzles, at which adjacent nozzles extend across the pathway between opposing walls to aerodynamically interact with a fluid flow. The airfoil defines the throat distribution, and the throat distribution reduces aerodynamic loss and improves aerodynamic loading on the airfoil. A trailing edge of the airfoil deviates from an axial plane by about 0.1 degrees to about 5 degrees. A turbomachine comprising a plurality of nozzles is also provided.

Abstract: A vane strut assembly is disclosed, The vane strut assembly may include a first panel, a second panel, and a coupling mechanism that couples the first panel and the second panel to one another. The coupling mechanism may include a first fitting that is attached to the first panel, a second fitting that is attached to the second panel, and a cable disposed between the first fitting and the second fitting.

Abstract: A nozzle box assembly includes steam inlets, a torus part, and a steam path ring. Working steam is supplied through the steam inlets. The torus part is connected to the steam inlets so as to form an annular steam path and having an opening portion, in which a part of the annular steam path is opened. The steam path ring is connected to the opening portion so as to provide a path, which is connected to a stage, and provided with a plurality of vanes. The steam path ring is directly connected to the opening portion.

Abstract: A rim seal located between a stator and a rotor in a gas turbine engine includes an axial overlap between platform rims of the stator and the rotor. The axial length of the platform rim of one of the stator and the rotor is accommodated within a radially aligned trench defined in the other of the stator and the rotor.