Abstract: An apparatus including a drilling tool for locating in a wellhead has fluid ports therein. The apparatus further includes a collar which is mateable with the drilling tool, such that the fluid ports in the drilling tool are blocked by the collar when the collar is mated with the drilling tool. The drilling tool can be a bit runnable drill string tool. The apparatus may also include a bit runnable wear bushing. The apparatus can advantageously be used to perform a method of testing a blowout preventer (BOP) on a subsea wellhead.

Abstract: A down-hole packer is provided for positioning in a wellbore to establish a seal with a surrounding surface. The packer includes a sealing element that is responsive to compression by a setting piston to radially expand into the wellbore. An actuator is provided to longitudinally move the setting piston in response to a telemetry signal received by the down-hole packer. The actuator can include a hydraulic pump, an electromechanical motor or valves operable to control hydraulic energy to apply a down-hole force to the setting piston.

Abstract: A down-hole packer is provided for positioning in a wellbore to establish a seal with a surrounding surface. The packer includes a sealing element that is responsive to compression by a setting piston to radially expand into the wellbore. An actuator is provided to longitudinally move the setting piston in response to a telemetry signal received by the down-hole packer. The actuator can include a hydraulic pump, an electromechanical motor or valves operable to control hydraulic energy to apply a down-hole force to the setting piston.

Abstract: A method for remediating a microannulus in a cased wellbore may include conveying a downhole tool into the cased wellbore to a location of interest. The location of interest may include one or more perforations in a casing and a microannulus. The downhole tool may include a heat generation device. The method may also include activating the heat generation device to melt a fill material at the location of interest such that the fill material flows through the perforations into one or more voids, including the microannulus, in or around cement disposed between the casing and the cased wellbore. Additionally, the method may include deactivating the heat generation device to facilitate solidification of the fill material in the one or more voids and sealing of the microannulus.

Abstract: A valve with a shuttle for use in a flow management system is capable of bypassing a backflow.

Abstract: A wellbore tool that can withstand pressure tests without becoming hydraulically actuated. The wellbore tool includes a tubular housing including an inner bore; a tool mechanism responsive to fluid pressure; and a pressure isolator for the tool mechanism moveable between an active and an inactive position.

Abstract: A stage tool for wellbore annular cementing may be opened for cementing by hydraulic actuation of a sliding sleeve valve from over a fluid port. After sufficient cement has been introduced, the stage tool fluid port can be closed by compressing two telescopically arranged parts of its tubular body to further overlap each other and overlie the fluid port. This permits the stage tool to be closed without employing a plug.

Abstract: A method for preventing wax deposition in oil wells with packers is disclosed. The method includes feeding a motive fluid from a storage tank to an ejector having a converging section for inlet of the motive fluid, a diverging section for outlet of the motive fluid, and a constricted section with an opening in between the converging section and the diverging section; removing a water and water vapor from an annulus of the oil well using the ejector, wherein flowing of the motive fluid through the converging section and diverging section of the ejector creates a pressure loss and increases the velocity of the motive fluid, which creates suction in the constricted section to evacuate water and vapor from the annulus of the oil well, thereby remediating wax deposition in the oil well.

Abstract: The invention relates to a downhole tool (10) for use in a casing or tubing (99) in a well comprising a support (15) and a brush (12). The downhole tool (10) further comprises a lever arm (13) having a first end (13-1) and a second end (13-2) opposite the first end (13-1). The lever arm (13) is pivotably mounted to the support (15) and the brush (12) is mounted at the second end (13-2) of the lever arm (13). A driver means is provided for driving the lever arm (13) outwardly to press the brush against a wall of the casing or tubing (99) in operational use of the downhole tool (10). An advantage of the invention is that one size of the downhole tool may fit all sizes of a casing or tubing. The invention also relates to method of cleaning and honing casings or tubings in a well.

Abstract: Multi-functional fluid-driven power generation units, modular power generation units, and drilling systems with a power generation unit are presented herein. A power generation unit for powering one or more downhole tools in a drill string is disclosed. The power generation unit includes a housing that is configured to couple to a downhole portion of the drill string and receive at least a portion of fluid flowing through the drill string. The power generation unit also includes a fluid-driven motor assembly with a drive shaft configured to output rotational drive forces generated by the motor assembly. An electrical generator is operatively coupled to the drive shaft and configured to convert the rotational drive forces generated by the motor assembly into electrical power. In addition, a hydraulic pump is operatively coupled to the drive shaft and configured to convert the rotational drive forces generated by the motor assembly into hydraulic power.

Abstract: A process for removing hydrate formations from a flowline includes connecting a manifold to the flowline, passing an inert gas across a pair of inlets of the manifold so as to create a reduced pressure across the pair of inlets that is less than a pressure of a fluid in the flowline, opening a valve between the pair of inlets and the flowline so as to expose the pressurized fluid in the flowline to the reduced pressure across the pair of inlets, disassociating hydrates in the flowline by exposure to the reduced pressure across the pair of inlets, and flowing the fluid and the disassociated hydrates from the flowline into the outlet of the manifold and outwardly of the manifold through at least one of the pair of inlets.

Abstract: A flow control apparatus for a borehole comprises a basepipe, a screen, a sleeve, and at least one baffle. The basepipe has a bore for conveying fluid and defines at least one opening for communicating fluid into the bore. The screen is disposed on the basepipe and screens fluid from outside the basepipe. The sleeve is disposed on the basepipe adjacent the screen and has at least one flow passage for communicating the fluid from the screen to the at least one opening in the basepipe. A shelf of the sleeve extends downstream from the at least one flow passage and covers at least a portion of the basepipe upstream from the at least one opening. The at least one baffle is disposed on the shelf and changes a direction of the flow exiting from the at least one flow passage.

Abstract: A laser cutting apparatus operable in a wellbore to form radial slots in a subterranean formation penetrated by the wellbore and a casing lining at least a portion of the wellbore. The laser cutting apparatus includes a housing, a deflector system, and an optical member. The deflector system is disposed for rotation about a first axis within the housing and is rotatable about a second axis at a distance from the first axis. The optical member conducts a laser beam incident upon the deflector system.

Abstract: A box by pin perforating gun system using swaged down gun bodies, a removable cartridge to hold a detonator and switch, and an insulated charge holder as an electrical feed-through.

Abstract: A bypass plunger combines a unitary or one-piece hollow body-and-valve cage, retains a dart valve within the valve cage portion of the hollow body using a threaded retaining nut secured by crimple detents. A series of helical grooves surround the central portion of the outer surface of the hollow body of the plunger to control spin during descent. A canted-coil-spring disposed within the retaining nut functions as a clutch. The valve cage includes ports that may be configured to control flow through the plunger during ascent. Other embodiments include clutch assemblies using canted-coil springs with split bobbins, and valve stems surfaced to achieve specific functions. Combinations of these features provide enhanced performance, durability and reliability at reduced manufacturing cost, due primarily to the simplicity of its design.

Abstract: A system and method of producing oil is provided. The system includes a support module that provides air, water and fuel to a well. A steam generator is fluidly coupled to the support module to receive the air, water and fuel. The steam generator includes an injector having a plurality of tubes. The tubes have an outer surface with an oxidation catalyst thereon. The steam generator is configured to divide the supplied air and direct a first portion through the tubes. A second portion of the supplied air is mixed with supplied fuel and directed over the outside of the tubes. The air and fuel is burned in a combustor and water is sprayed on the combustion gases to produce steam. The steam and combustion gases are directed in the direction of the oil reservoir.

Abstract: A control system for a CO2 fracking system includes a phase detector, a control valve, and a controller. The phase detector is disposed proximate to at least one of an inlet conduit and an outlet conduit of a fracking component. The control valve is fluidly coupled to the inlet conduit. The controller is communicatively coupled to the phase detector, the control valve, and the fracking component. The phase detector is configured to determine CO2 phase in at least one of a CO2 stream incoming into the fracking component and CO2 phase discharged from the fracking component, and to generate an input signal based on the phase. The controller is configured to control one or both of a flow of the incoming CO2 stream into the fracking component via the control valve and an operation condition of the fracking component, based on the input signal received from the phase detector.

Abstract: Explosive geologic fracturing methods, devices, and systems can be used in combination with other geologic fracturing means, such as hydraulic fracturing methods, devices and systems, or other fluid-based fracturing means. An exemplary method comprises introducing an explosive system into a wellbore in a geologic formation, detonating the explosive system in the wellbore to fracture at least a first portion of the geologic formation adjacent to the wellbore, and introducing pressurized fluid into the wellbore to enhance the fracturing of the first portion of the geologic formation. Such multi-stage fracturing can further enhance the resulting fracturing of geologic formation relative to explosive fracturing alone.

Abstract: Managing operation of a sealing element is described. In some aspects, failure of the sealing element of a pressure drilling system may be predicted. Deformation of the sealing element as a tool joint is pulled through the sealing element may be detected and tracked to determine if a deformation pattern of sealing element changes. Responses of sealing element due to one or more of stress, strain, temperature, mechanical load, and pressure using a network of sensors around sealing element can be detected. Responses may be tracked over time. Detected responses are compared to tracked responses to identify changes in the symmetry of responses over time or changes in magnitude of responses over time. Changes are associated with fractures occurring within sealing element. A remaining life of sealing element is predicted based on the changes and replacement may be scheduled based at least in part on the predicted remaining life.

Abstract: Apparatus, systems, and methods for ranging operate to use a wireline active ranging system to initially determine a relative distance and relative direction from a first well (e.g., ranging well) to a second well (e.g., target well) and an EM azimuthal logging tool to maintain or adjust the distance from the target well while drilling the ranging well. Additional apparatus, systems, and methods are disclosed.

Abstract: An intelligent tool bus network for a bottom hole assembly (BHA) that can enumerate the nodes on the bus to build a tool string layout map. During the enumeration, an enumeration master node (EMN) sequentially powers and tests additional sections of the bus and additional tool electronics. At each node, the EMN records the results of the tests in an enumeration log. For each good node, communication is established with the EMN to retrieve a node ID and node metadata. Using the enumeration log, the EMN builds a tool string layout map that includes information of each node, their relative location, and their operating status. The intelligent tool bus network also facilitates sectioning a bus into a plurality of sub-busses upon a sectioning event and rejoining the sub-busses. The sectioning event occurs as a result of a fault on the bus or a planned section division multiplexing event.

Abstract: A steering tool is movable by a drill string to form an underground bore along an intended path. A sensing arrangement of the steering tool detects its pitch and yaw orientations at a series of spaced apart positions along the bore, each position is characterized by a measured extension of the drill string. The steering tool further includes a receiver. At least one marker is positioned proximate to the intended path, for transmitting a rotating dipole field to expose a portion of the intended path to the field for reception by the receiver. The detected pitch orientation, the detected yaw orientation and the measured extension of the drill string are used in conjunction with magnetic information from the receiver to locate the steering tool. The steering tool may automatically use the magnetic information when it is available. A customized overall position determination accuracy can be provided along the intended path.

Abstract: An example cement and casing evaluation tool includes an amplifier and a filter coupled an output of the amplifier. A transducer may be coupled to the output of the filter. A ringing reduction system may be coupled to at least one of the amplifier, the filter, and the transducer, wherein the ringing reduction system selectively dissipates energy from at least one of the amplifier, the filter, and the transducer in response to a control signal.

Abstract: A cable is used for running a load between surface and downhole in a well. The cable includes one or more wires composed of a non-metallic material. Each of the one or more wires bears the load from the surface and can electrically conduct between the surface and downhole. An insulating material is disposed about the one or more wires and insulates the electrical conduction. The non-metallic material includes a carbon nanotube wire. A jacket can be disposed about the insulating material, and the jacket can be composed a non-metallic material also, such as carbon nanotube wire. Markers disposed at predefined distances along the length of the cable are used to determine the deployed length of the cable.

Abstract: Embodiments include well ranging apparatus, systems, and methods which operate to measure a total magnetic field strength at each of three sensors attached to a down hole tool housing, wherein each sensor is to provide normal, tangential, and longitudinal field strength component amplitude values, and wherein at least one of the sensors is attached to the housing spaced approximately equidistant from the other two sensors in an azimuthal plane of the housing, and wherein each of the sensors is spaced apart from the other sensors in a longitudinal direction of the housing. Further activity includes determining at least three gradient field values from the total magnetic field strength measured by the three sensors, and determining an approximate range from a first well in which the sensors are disposed, to a casing of a second well, using the at least three gradient field values. Additional apparatus, systems, and methods are disclosed.

Abstract: A turbine drilling assembly can include a turbine drilling motor having an upper drill string connector, and an inclination sensor positioned in the turbine drilling assembly below the upper drill string connector. Another turbine drilling assembly can include a turbine drilling motor having an upper drill string connector, a sensor positioned in the turbine drilling assembly below the upper drill string connector, and a transmitter which transmits sensor data through a housing of the turbine drilling motor.

Abstract: A sensing and communication system for a gas lift well is provided. The gas lift well includes a casing, production tubing positioned within the casing, and a gas lift valve coupled to the production tubing. The sensing and communication system includes a turbine configured to rotate in response to an injected gas stream flowing through the turbine, wherein the turbine is positioned one of i) within an annulus defined between the production tubing and the casing and ii) within the gas lift valve, an alternator coupled to the turbine and configured to generate electrical power from rotation of the turbine, and at least one sensor coupled to the alternator and configured to operate using the generated electrical power.

Abstract: A method according to some embodiments comprises obtaining a formation sample from a borehole, identifying minerals present in a first portion of the formation sample and determining densities of the minerals. The method also comprises determining, using a second portion of the formation sample, material properties associated with the mineral densities. The method further comprises associating the material properties with the identified minerals using the mineral densities, and generating a log comprising the associations.

Abstract: An implement system for a machine includes a boom housing a drive mechanism for a cutting implement, and having a plurality of oil outlet ports formed therein. A control mechanism is configured to receive data indicative of an expected change in location of the outlet ports relative to an oil fill line within the boom, and vary a pattern of incoming oil flow to limit entrainment of air in the oil.

Abstract: The invention relates to a bit holder for an earth working machine, in particular a surface miner, a road milling machine, or the like, having a holding projection that comprises a bit receptacle and/or carries a cutting element. In order to improve the operating reliability of an earth working machine, provision is made according to the present invention that the holding projection has, behind the cutting element or behind a receiving region of the bit receptacle in the tool advance direction, a wear protection element having a hard-material element in order to provide an emergency-mode property.

Abstract: A spring suspension clip configured to suspend a threaded rod member comprises a helical body with an upper end and a lower end, and a clipping section defined as the helical body. Then the clipping section is configured to conform to a threaded section of the threaded rod member to flexibly suspend the by two outward extensions into a space which is drilled and positioned within a section of rock which is to be grouted.

Abstract: Provided is a nut (12) configured to engage with an end portion on a first side of each of bolts (11) that pass through a plurality of rotary members in an axial direction at a plurality of locations in a circumferential direction having an axis (A) as the center thereof, the plurality of rotary members being stacked along the axial direction in which the axis (A) extends, the nut (12) comprising a first cover surface (35), which is the surface opposite a surface that faces a second side opposite the first side of the bolts (11), wherein, among all surfaces of the nut, at least the first cover surface (35) cooperates with the first cover surface (35) of another nut (12) to form a continuous annular surface with the axis (A) as the center thereof.

Abstract: A fluidfoil comprises a main body and a fence, wherein the fence has different lean angles with respect to the main body at different chordwise positions, and wherein the fence is divided along its chordwise extent into at least two portions, where a first portion nearer a leading edge of the fence has a smaller lean angle than a second portion further from the leading edge, and wherein all portions are either anhedral or dihedral.

Abstract: An airfoil of a gas turbine engine is provided. The airfoil includes an airfoil body having at least one internal flow passage, the body having a first surface and a second surface, the first surface defining a wall of the at least one internal flow passage and a bleed port fluidly connecting the at least one internal flow passage to the second surface. The bleed port includes a bleed orifice extending from the second surface toward the internal flow passage and a bleed port cavity extending from the first surface toward the second surface, the bleed port cavity and the bleed orifice fluidly connected. The bleed port cavity is defined by a bleed port cavity wall and a base wall surrounding the bleed orifice. The bleed port cavity wall extends from the first surface to the base wall.

Abstract: In one example embodiment, a blade includes an attachment region, an airfoil extending from the attachment region, and a blade cooling arrangement. The blade cooling arrangement includes at least a first feed passage disposed through the attachment region, which is connected to a first cooling passage disposed in the airfoil. A passively actuated first coolant valve is disposed in or proximate the first feed passage. A plurality of such blades can be disposed in a turbine section of an engine.

Abstract: A turbine blade airfoil including cooling circuits is disclosed. The airfoil may include a first pressure side cavity positioned adjacent a pressure side of the airfoil, where the first pressure side cavity is configured to receive a coolant. The airfoil may also include at least one distinct pressure side cavity positioned adjacent to and fluidly coupled to the first pressure side cavity, a trailing edge positioned between the pressure and a suction side, and a trailing edge cooling system positioned adjacent the trailing edge and in direct fluid communication with the first pressure side cavity. The trailing edge cooling system may be configured to receive a portion of the coolant from the first pressure side cavity.

Abstract: A component for use in a turbine engine includes a fore edge connected to an aft edge via a first surface and a second surface. Multiple cooling passages are defined within the turbine engine component. A first skin core passage is defined immediately adjacent one of the first surface and the second surface. At least 80% of coolant entering the first skin core passage is expelled from the turbine engine component at the aft edge.

Abstract: An air supply system is configured to provide cooling air with reduced heat pickup to a turbine rotor of a gas turbine engine. The system comprises a first cooling passage extending between a hollow airfoil and an internal pipe extending through the airfoil. The airfoil extends through a hot gas path. A second cooling passage extends through the internal pipe. The coolant flowing through the second cooling passage is thermally isolated from the airfoil hot surface by the flow of coolant flowing through the first cooling passage. The first and second cooling passages have a common output flow to a rotor cavity of the turbine rotor where coolant flows from the first and second cooling passages combine according to a predetermined ratio.

Abstract: A process of producing a ceramic matrix composite component. The process includes positioning core plies on a mandrel. At least partially rigidizing the core plies to form a preform ceramic matrix composite arrangement defining a tip cavity and a hollow region. Ceramic matrix composite tip plies are positioned on the preform ceramic matrix composite arrangement and within the tip cavity. The ceramic matrix composite tip plies are densified to form a tip region of the composite component.

Abstract: A tool for installing a turbomachine component in a first dovetail slot of a first component mount is provided. The tool may include a tool mount having a body for selective fixing in a second dovetail slot of a second component mount adjacent to the first component mount. The tool may also include a lever arm including a first portion, an intermediate pivot for pivotally engaging the tool mount, and a second portion for engaging the turbine component. Actuating the lever arm against the tool mount causes the second portion of the lever arm to install the turbomachine component into the first dovetail slot of the first component.

Abstract: A method of forming a curved slot in a turbine disk includes the steps of forming a pre-slot in the turbine disk and finishing the pre-slot to form a slot that receives a portion of a turbine blade. The turbine disk including a first face, an opposing second face, and an outer perimeter surface extending between the first face and the opposing second face. The pre-slot includes a first curved wall and a second curved wall that each extend between the first face and the opposing second face. An intersection between the outer perimeter surface and each of the first curved wall and the second curved wall is defined by a curved line.

Abstract: A fan blade of a gas turbine engine includes an airfoil, a root received in a slot of a hub, and a wear pad covering at least a portion of the root and made of an integrally bonded woven composite laminate.

Abstract: A turbine ring assembly includes a ring support structure and a plurality of CMC ring sectors forming a turbine ring. Each ring sector is K-shaped in radial section, with tabs extending from the outside face of the annular base over end portions of the annular base, the tabs and the end portions of each ring sector being held respectively facing tabs and end portions of ring sectors that are adjacent in the ring. The turbine ring assembly has a plurality of rigid gaskets, each extending axially between adjacent ring sectors, and resilient holder devices exerting a force suitable for holding the gaskets in contact with the end portions or the tabs of two adjacent ring sectors.

Abstract: A turbine vane assembly for use in a gas turbine engine includes an endwall, a flow path component, and a load-distribution system. The endwall is arranged around a central axis of the turbine vane assembly. The flow path component is configured to direct fluid flow through the turbine vane assembly. The load-distribution system is positioned between the endwall and the flow path component to distribute loads transmitted between the endwall and the flow path component.

Abstract: A chamfered stator vane rail is provided. The chamfered stator vane rail may comprise a forward rail and an aft rail axially opposite the forward rail. The aft rail may comprise a leading edge and a trailing edge located axially opposite and aft of the leading edge. The aft rail may comprise a chamfered edge on a radially outer surface. The chamfered edge may be oriented at an angle relative to an axis.

Abstract: A vane includes a pair of airfoils that have a plurality of film cooling holes that extend through an exterior surface of the airfoils. Each plurality of film cooling holes break through the exterior surface at geometric coordinates in accordance with Cartesian coordinate values of X, Y and Z as set forth in Table 1. Each geometric coordinates is measured from a reference point on a leading edge rail of a platform of the vane.

Abstract: In one aspect, the present subject matter is directed to a gas turbine sealing assembly that includes a first static gas turbine wall and a second static gas turbine wall. A seal is disposed between the first static gas turbine wall and the second static gas turbine wall. The seal includes a first seal layer defining a first seal layer aperture extending therethrough. A second seal layer defines an elongated slot extending therethrough. The elongated slot includes a first end and a second end. A third seal layer defines a third seal layer aperture extending therethrough. The second seal layer is positioned between the first seal layer and the third seal layer such that the first seal layer aperture is in fluid communication with the first end and the third seal layer aperture is in fluid communication with the second end.

Abstract: A corrosion resistant aluminum alloy abradable coating for use as a seal material consists of a porous base metal alloy layer containing corrosion inhibiting metal compounds dispersed throughout the porous base metal alloy layer. A method of forming a corrosion resistant aluminum alloy abradable coating consists of co-thermal spraying aluminum alloy powder plus polymer powder and particles containing corrosion inhibiting metal compounds.

Abstract: An inlet door state control system for an auxiliary power unit (APU) includes an inlet door configured to allow air into an inlet of the APU. The system also includes an actuator configured to open the inlet door. The system also includes an APU threshold switch connected to the actuator, the APU threshold switch configured to automatically change from an open position to a closed position when a predetermined APU operating condition is met. In the system, the actuator opens the inlet door when the APU threshold switch is in the closed position.

Abstract: A dual trip manifold assembly (TMA) includes an isolation valve assembly having a first valve configured to receive a flow of fluid from a hydraulic system fluid supply. The first valve is configured to channel the flow of fluid to at least one hydraulic circuit. The isolation valve assembly also includes a second valve configured to receive the flow of fluid from the at least one hydraulic circuit of the at least two hydraulic circuits. The second valve is further configured to channel the fluid flow to a trip header and to receive the fluid flow from the trip header. The first valve and the second valve are synchronized to each other such that rotation of one of said first and second valves causes a substantially similar rotation in the other of said first and second valves header.