Abstract: A wellhead valve assembly feedthrough for a cable or conduit comprises a lower connector disposed within the wellhead valve assembly and being coupled to an upper end of a cable or conduit disposed in a wellbore, and a moveable upper connector disposed above the lower connector, the upper connector extensible to connect to the lower connector and retractable to disconnect from the lower connector. The wellhead valve assembly feedthrough further includes a sealed exit arrangement having a segment of conduit or cable passing therethrough to outside the wellhead valve assembly, wherein one end of the segment of conduit of cable is connected to the upper connector.

Abstract: A packer actuation system for a blowout preventer includes a packer arrangement with an axial passage therethrough, an actuation system which is releasably mechanically connected to the packer arrangement, a contractor arrangement, and a retractor arrangement. The actuation system moves the packer arrangement from an expanded position to a contracted position so as to decrease a dimension of the axial passage, and to move the packer arrangement from the contracted position to the expanded position so as to increase the dimension of the axial passage. The contractor arrangement moves the packer arrangement from the expanded position to the contracted position. The retractor arrangement moves the packer arrangement from the contracted position to the expanded position.

Abstract: A sealing arrangement having inboard and outboard dynamic seals in a housing separated by a barrier fluid and having a sealed relationship with a relatively movable bearing-guided shaft. A bearing chamber having bearing lubricant exposed to the inboard dynamic seal. The inboard dynamic seal is a hydrodynamic seal having a hydrodynamic pumping action in response to relative rotation between the shaft and the inboard dynamic seal. The hydrodynamic pumping action forcing a film of the bearing lubricant between the inboard dynamic seal and the shaft. The hydrodynamic pumping-related leakage of the inboard dynamic seal being returned to the bearing chamber in which the shaft guidance bearings are located.

Abstract: A downhole tool includes a sealing element configured to expand radially outwards to form a seal with a surrounding tubular, a cone defining a tapered surface, and a slips assembly comprising a plurality of slips. The slips assembly is receivable at least partially around the cone, such that moving the cone in an axial direction with respect to the slips assembly causes the plurality of slips to separate circumferentially apart. The tool also includes a backup member positionable at least partially around the tapered surface of the cone and positioned adjacent to the slips assembly. The backup member is configured to break as the cone is moved toward the plurality of slips, to prevent the sealing element from extruding between circumferentially-adjacent slips of the plurality of slips.

Abstract: A method of restoring flow through an opening in a well, the opening being blocked by a plugging device, can include conveying a well tool into the well, contacting the plugging device with the well tool, and permitting flow through the opening as a result of the contacting step. Another method of restoring flow through an opening blocked by a plugging device in a well can include conveying a well tool into the well, reducing pressure in the well with the well tool, and permitting flow through the opening as a result of the pressure reducing step.

Abstract: A technique which enables construction and operation of a subsea landing string system having a system manifold or manifolds unprotected by a dielectric fluid compensated enclosure. The manifolds contain directional control valves and corresponding solenoids which are able to operate while being exposed to environmental fluids such as seawater. The ability to operate manifolds in an unprotected environment enables the manifolds to be positioned in a variety of locations along the subsea landing string system or in cooperation with the subsea landing string system. The subsea landing string system also may be a modular system in which manifolds are added or removed according to the parameters of a given operation.

Abstract: A valve arrangement including a housing having a port, a closure member defining a bore, the bore being of a smaller flow area than an adjoining flow area to produce a lower pressure in flowing fluid therein than pressure in fluid flowing in the adjoining flow area, the closure member being disposed within the housing and movable between a closed position and an open position, a volume defined between the closure member and the housing, an opening in the closure member extending from the volume to the bore of the closure member to convey fluid pressure generated in the bore of the closure member to the volume thereby creating a lower pressure in the volume thereby biasing the closure member into a closed position.

Abstract: A completion string can have an outer surface and an inner surface, a first fluid passageway being defined between the outer surface and the inner surface. The inner surface can define an inner region of the completion string and can have a recess that is sized to receive a sleeve that is moveable between an open position and a closed position. The inner region can be sized to receive a work string at a position at which a surface of the work string cooperates with the sleeve and the inner surface of the completion string to define a first chamber on a side of the sleeve, the first chamber being hydraulically sealed by a plurality of sealing elements. The work string can define a second fluid passageway to provide fluid communication with the first chamber.

Abstract: A sleeve assembly has a sleeve axially moveable within a housing, the sleeve being positively locatable within a wellbore for reliable axial shifting of the sleeve between an uphole position and a downhole position. Stops and shoulders, which delimit the shifting of the sleeve between open and closed positions, are located in an annulus between the sleeve and the housing. Uphole and downhole ends of the sleeve and the housing have opposing ramps formed thereon. Locating shifting tools run through the sleeve assembly are engageable only in a locating profile in the sleeve and cannot engage in the annular stops or in gaps formed in the bore, uphole and downhole of the sleeve, as the ramps act to guide the locating tool therethrough. As the uphole and downhole sleeve ramps converge toward either of the uphole or downhole housing ramps during shifting thereof, debris is diverted into the bore allowing the sleeve to shift fully uphole or downhole.

Abstract: A method can include positioning a tubular string in a riser string including an outer housing of a pressure control device and an annular seal operable to prevent flow through an annulus between the tubular and riser strings, the tubular string including an equalization valve and a running tool operable to convey a releasable assembly of the pressure control device through the riser string, and opening the equalization valve, thereby permitting fluid communication between the annulus and a flow passage extending longitudinally through the tubular string. A system can include a riser string including an annular blowout preventer with an annular seal, a tubular string including a running tool and an equalization valve releasably attachable to a releasable assembly including an annular seal, and the equalization valve selectively preventing and permitting fluid communication between a flow passage of the tubular string and an annulus between the annular seals.

Abstract: The pressure Pulse-Code Testing (PCT) is a complex solution to the inter-well interference problem and claims to significantly expand the applicability of a traditional interference test in practice. The present invention relates to oil production technologies, namely methods for conducting, interpreting and analyzing the results of hydrodynamic tests in the area of each well. A three-dimensional hydrodynamic model is formed, then the PCT is modeled, then an optimal test design is selected, then a fishery test is carried out in the above scenario and reservoir filtration parameters are determined by interpreting the data, ultimately updating the hydrodynamic model taking into account the data determined in the previous step.

Abstract: A gas production line including: an inlet; an outlet; and a wet gas condenser connected between the inlet and the outlet, wherein the wet gas condenser includes: a condensing chamber; a condensing surface; and a collecting chamber, wherein, in use, water vapour in wet gas passing over the condensing surface is condensed into liquid water, the liquid water flowing along a predetermined flow path into the collecting chamber.

Abstract: An adjustable pore size filtration configuration including a first filtration media having openings, a second filtration media having openings, the first filtration media being selectively movable relative to the second filtration media and selectively fixable relative to the second filtration media to adjust a degree of alignment between the first filtration media openings and the second filtration media openings thereby adjusting a pore size of the configuration.

Abstract: A semi-permeable expanding sleeve system for pipe spreading in a borehole is disclosed. The system has an expansion sleeve, a grout injection pipe and a high-solids grout mixture. The expansion sleeve has a top end and a bottom end. The grout injection pipe has a first end, a second end, an inlet and at least one outlet. The grout injection pipe is insertable through the open top end of the expansion sleeve such that the at least one outlet is positionable within the expansion sleeve and the inlet is positionable adjacent the top end of the expansion sleeve. The grout mixture is pumped through the grout injection pipe into the expansion sleeve using a pump. A closing mechanism is provided for closing the expansion sleeve around the grout injection pipe to create a semi-permeable enclosure.

Abstract: Methods and systems for restimulating a previously fractured subterranean formation penetrated by a wellbore are described. The methods include plugging existing perforations in an outer casing and existing fractures in the formation with a diverting agent, placing an inner casing in the wellbore while the existing perforations and existing fractures are plugged with the diverting agent, perforating the inner casing and the outer casing to form new perforations, and pumping a fluid through the new perforations to create new fractures in the formation.

Abstract: Fluid flow control systems are configured to resist erosion-corrosion and minimize wall shear stress during injection or production. A fluid flow control system includes a base pipe with an internal passageway. A housing is positioned around the base pipe to define a fluid flow path between the filter component and the internal passageway. A flow control component is positioned within the fluid flow path in order to control fluid flow. A flow-induced erosion resistance component, which may take a variety of forms, is positioned within the fluid flow path to reduce and/or eliminate wall shear stress along the base pipe. As a result, erosion-corrosion of the bases pipe is reduced and/or eliminated altogether.

Abstract: Methods for enhanced oil recovery are disclosed. In one method, an oil-bearing sandstone formation having a clay content of at least 5 wt. % is injected with a surfactant mixture, a solution comprising 0.5 to 3 wt. % aqueous alkali, and an aqueous solution comprising a polyether. In another method, a sandstone formation having a salinity within the range of 20,000 to 100,000 ppm total dissolved solids and a divalent ion content within the range of 1,000 to 10,000 ppm is injected with a surfactant mixture and an aqueous solution comprising a polyether. In both methods, the polyether solution is injected as a sacrificial agent prior to injection of the surfactant mixture or is injected as a mitigation agent concurrently with the surfactant mixture. Surprisingly, adsorption of the surfactant mixture onto the formation can be reduced by 20-70% or more compared with a similar methods performed without the aqueous alkali solution, the polyether solution, or both.

Abstract: Mobile system for the compression of a fluid for use in oil operations, said mobile system comprising: a trailer adapted for the transport of a fluid compression unit fixedly mounted thereon, said trailer being adapted for transport on conventional roadways, said fluid compression unit comprising: an inlet operatively connected to a fluid source; a compressor adapted to compress a fluid to high pressures; and an outlet adapted to be operatively connected to a well for downhole injection of said fluid while under substantially the high pressure reached during the compression by the compressor; wherein, when in operation, said compressed fluid is injected into a well at a pressure of no less than 7,000 psi.

Abstract: Embodiments include drilling a wellbore in a hydrocarbon-bearing formation, and the wellbore includes a radio frequency antenna destination portion that is configured to receive a radio frequency antenna; forming a low dielectric zone in the hydrocarbon-bearing formation proximate to the radio frequency antenna destination portion with a cavity based process or a squeezing based process; positioning the radio frequency antenna into the radio frequency antenna destination portion such that the radio frequency antenna is proximate to the low dielectric zone; dielectric heating the hydrocarbon-bearing formation with the radio frequency antenna such that the low dielectric zone increases dissipation of energy from the radio frequency antenna into the hydrocarbon-bearing formation; and extracting hydrocarbons from the heated hydrocarbon-bearing formation. The material has a dielectric constant of less than or equal to 20, a loss tangent of less than or equal to 0.4, and a porosity of less than or equal to 5%.

Abstract: In one aspect, there is provided a process for producing hydrocarbons from a reservoir, comprising: within the reservoir, electrically heating a liquid heating fluid such that the liquid heating fluid is evaporated to produce a gaseous heating fluid that heats the liquid hydrocarbon material within the reservoir such that the heated liquid hydrocarbon material is mobilized and such that the gaseous heating fluid is condensed to produce a condensed heating fluid, wherein the liquid heating fluid includes at least a fraction of the condensed heating fluid such that at least a fraction of the condensed heating fluid is refluxed; and producing a fluid including the mobilized hydrocarbon material; wherein the hydrocarbon reservoir is spaced apart from the earth's surface by a minimum distance of less than 75 metres.

Abstract: The present invention provides a method and system for providing on-site electrical power to a fracturing operation, and an electrically powered fracturing system. Natural gas can be used to drive a turbine generator in the production of electrical power. A scalable, electrically powered fracturing fleet is provided to pump fluids for the fracturing operation, obviating the need for a constant supply of diesel fuel to the site and reducing the site footprint and infrastructure required for the fracturing operation, when compared with conventional systems.

Abstract: The invention provides techniques that relate to horizontal well completions that facilitate multistage fracturing, for example, in shale gas reservoirs. Aspects of these techniques involve the creation of large scale fracture networks, connecting the reservoir and the wellbore, facilitated by activating pre-existing natural fractures (NFs). Taking into account selected shale formation geo-mechanical characteristics facilitates the optimization of maximum stimulated reservoir volumes (SRVs). In particular, completion optimization patterns are provided for horizontal wellbores, designated herein as altered alternate fracturing (AAF) completions. Aspects of this approach involve a multi-step combination of simultaneous and alternate fracturing patterns. To illustrate aspects of optimization, the dynamic evolution and progression of NF growth are modeled using a variety of alternative criteria. In addition, specific analyses are provided of how the well completion pattern influences the fracture network.

Abstract: An automated hydraulic fracturing system, including a pump system, a blender configured to form the fracturing fluid, a proppant storage and delivery system, a hydration unit configured to mix an additive into a fluid to form the fluid mixture and provide the fluid mixture to the blender, a fluid storage and delivery system, and an additive storage and delivery system, and an automated control system including a plurality of sensing devices and a plurality of control devices integrated into the pump system, the blender system, the proppant storage and delivery system, the fluid storage and delivery system, and the additive storage and delivery system, the automated control system configured to monitor parameters of the automated hydraulic fracturing system via the plurality of sensing devices and transmit control instructions for one or more of the plurality of control devices to control an aspect of the automated hydraulic fracturing system.

Abstract: A tool for monitoring conditions within a subterranean well includes a first body segment, the first body segment being an elongated member with an axial protrusion having a reduced outer diameter. A second body segment is sized for mating with the first body segment. A metal specimen circumscribes the axial protrusion of the first body segment so that an outer diameter surface of the metal specimen defines an outer diameter of the tool. A connection assembly releasably secures the first body segment to the second body segment.

Abstract: This disclosure relates to a system and method for detecting structural integrity of a well casing. The system may detect casing structural integrity events. The casing structural integrity events may include structural failures of the casing and/or potential structural failures of the casing. The well casing may be drilled and/or otherwise embedded into a geologic structure. The well casing may be subject to geologic forces generated by the geologic structure. Unplanned and/or unexpected forces and/or movement may pose a risk to the structural integrity of the casing. Forces and/or movement of sufficient magnitude may result in damage to and/or destruction of the casing. Damage to and/or destruction of the casing may cause a loss of the natural resources being extracted via the well associated with the well casing, contamination of areas surrounding the well, undesirable surface expression, and/or other negative effects.

Abstract: An apparatus and method for securing a piezoelectric element in an electroacoustic communications node used in a downhole wireless telemetry system. An end mass is secured to the piezoelectric element. At least one fastener attaches a pre-tensioning support plate to a housing of the node. The pre-tensioning support plate and the at least one fastener impart a tensioning force to the end mass and/or the piezoelectric element when the pre-tensioning support plate and the end mass and/or the piezoelectric element are secured to the housing.

Abstract: Historical production data associated with production of a hydrocarbon product in a reservoir is obtained. Historical tracer test data associated with the production is obtained. History matching is performed using the historical production data and the historical tracer test data to generate improved geological models. Production optimization is performed using the improved geological models, including predicting optimized controls and updating, using the predicted optimized controls, water injection rates and fluid production rates for individual injectors and producers. The predicted optimized controls are applied to the reservoir to optimize future production.

Abstract: A method and system are described for using different types of communication networks along one or more tubular members. The method includes constructing a communication network along one or more tubular members, which may access a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network (e.g., which uses aliased signals as part of the configuration) for a wellbore accessing a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network for a wellbore accessing a subsurface region and using the communication network in hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A method including: providing a downhole wireless communication network along a well casing or tubing; providing a plurality of downhole seismic receivers along a well casing or tubing; providing a seismic source; obtaining vertical seismic profile data along the well casing or tubing with the plurality of downhole seismic receivers; processing, with a downhole processor device, data obtained by at least one of the plurality of downhole seismic receivers; and transferring, with the downhole wireless communication network, processed data from the downhole processor device to a topside node.

Abstract: A method and system are described for wirelessly communicating within a wellbore. The method includes constructing a communication network, which communicates during drilling operations along one or more drilling strings. The communication network is used to perform drilling operations for hydrocarbon operations, such as hydrocarbon exploration, hydrocarbon development, and/or hydrocarbon production.

Abstract: A system and method to for communicating with a telemetry tool by generating mud pressure waveforms is disclosed according to one or more embodiments. The system includes a rotor having a first bore spaced axially apart from a second bore and a blade disposed therebetween, a stator having a first and second component with a portion of each stator component disposed in a respective one of the first and second rotor bores, and an actuator having a tubular core wrapped with a winding and a plurality of magnets. The rotor blade includes a plurality of cutouts that may be aligned with a plurality of through bores disposed on each stator component when the rotor is in an open position. The core, winding, magnets, and rotor operate like a limited angle torque motor to electromagnetically produce torque by reciprocatingly rotating the rotor within an angle of rotation.

Abstract: Transient responses of a tri-axial resistivity tool corresponding to an electromagnetic (EM) impulse are derived. A transient response of a directional resistivity tool (DRT) corresponding to the EM impulse is derived based on the transient responses of the tri-axial resistivity tool. A theoretical late time transient response of the DRT is derived based on the transient response of the DRT. The late time transient response of the DRT is measured. An anisotropy, a horizontal conductivity, and a dip angle are determined based on the measured late time transient response and the theoretical late time transient response.

Abstract: An apparatus for testing lost circulation materials (“LCMs”) for use in a formation is disclosed. The apparatus may comprise a LCM cell that contains at least one formation simulation component. A pressurized tank may be in fluid communication with the LCM cell, and may force a sample LCM slurry into the LCM cell. An LCM receiver may also be in fluid communication with the LCM cell, and may receive the LCM slurry that flows through the LCM cell.

Abstract: An underground sampling tool (HTMS) for underground water analysis of both quality and flow rate, providing the information required to perform an underground drilling and obtain uncontaminated water for crop irrigation, said tool comprising: a housing for the electronic and electrical controls, a housing for the hydraulic means controlled by the electric and electronic portion of the tool, a test body consisting of a variety of hydraulic circuits for operating the various operating valves of the tool, wherein said test body further comprises: a rear shoe on an axial axis of the tool, wherein said rear shoe is driven by two telescoping pistons simultaneously that arise from the inside of the tool when driven by a signal of a surface equipment operably enabled for this purpose, and a front shoe, driven by several pistons which are housed below the front shoe, not shown in the figures, and driven by one or more electro-pneumatic devices acting jointly and generating a progressive forward or backward movement of

Abstract: Provided is a tunnel boring machine that can detect a wear condition of a disc cutter with a highly reliable configuration. The tunnel boring machine includes a measurement device. The measurement device is disposed behind the disc cutter mounted on a cutter head. The measurement device has a function as an acquisition unit that acquires cutting edge position data indicating a position of a cutting edge part of a cutter ring in the disc cutter. The tunnel boring machine further includes a DC discrimination unit that discriminates which one of a plurality of disc cutters is the disc cutter the cutting edge position data of which is acquired by the measurement device and a wear amount calculator that calculates a wear amount of the cutting edge part of the discriminated disc cutter.

Abstract: The present invention disclose a tunnel wall element comprising a lightweight body element coated with a fire resistant coating providing increased mechanical integrity of the tunnel wall element. The present invention is also related to a method of building road and railway tunnels with the lightweight coated tunnel element.

Abstract: A rotatable piston assembly for a reciprocating piston type hydraulic machine includes a rotatable piston configured for a controlled rotation and configured to reciprocate within a cylinder bore of the reciprocating piston type hydraulic machine.

Abstract: A turbine wheel includes a hub, a plurality of blades extending from the hub, and a backwall extending from the hub and having an outer diameter. The backwall includes a first backwall surface and an opposing second backwall surface. The first backwall surface includes a datum ring having a diameter between approximately 50% and approximately 85% of the outer diameter.

Abstract: A rotor disk assembly may include a rotor disk and a retention ring coupled to the rotor disk. Generally, the retention ring is tuned to adjust a modal frequency response of the rotor disk/rotor disk assembly. In various embodiments, dimensions of the retention ring vary circumferentially. In various embodiments, the retention ring includes an axially extending flange and a radially extending flange. A radial thickness of the axially extending flange may vary circumferentially and/or an axial thickness of the radially extending flange may vary circumferentially.

Abstract: The present invention concerns a method for the construction of bladed discs for radial turbomachines, comprising: preparing a disc (6, 14) provided with a front face (7); preparing a plurality of reinforcement rings (23) with different diameters. Preparing the disc (6, 14) comprises: realizing annular sets of blades (20) in one piece with the disc (6, 14), said sets (20) being concentric and coaxial with a central axis (X-X) and arranged on the front face (7), wherein each blade (20) has a leading edge (21) and a trailing edge (22) substantially parallel to the central axis (X-X); and/or preparing a plurality of reinforcement rings (23) comprises: realizing in one piece with each one of the reinforcement rings (23) an annular set of auxiliary blades (20?) arranged around a central axis (X-X), wherein each auxiliary blade (20?) has a leading edge (21 ‘) and a trailing edge (22’) substantially parallel to the central axis (X-X).

Abstract: A component for a gas turbine engine includes a platform that has a radially inner side and a radially outer side. A root portion extends from the radially inner side of the platform. An airfoil extends from the radially outer side of the platform. The airfoil includes a pressure side that extends between a leading edge and a trailing edge. A suction side extends between the leading edge and the trailing edge. A curvature inflection point is located between 30% and 70% of an axial chord length of the airfoil.

Abstract: A fan blade having a damping system is provided. The fan blade comprising: a fan blade body having one or more compartments within the fan blade body; a damping material located within at least one of the one or more compartments; one or more partial ribs originating at the fan blade body and extending into at least one of the one or more compartments, wherein each of the one or more partial ribs terminate at a distal end; and one or more damping plates, wherein each of the one or more damping plates are attached to a distal end of a partial rib, wherein the damping material is located between the damping plate and the fan blade body.

Abstract: A turbine blade includes a platform with an internal cavity formed therein and an airfoil extending radially from the platform. The turbine blade includes a first portion made from ceramic matrix composite materials and a second portion made from superalloy materials. The first and second portions are selectively connected to each other via a spur and include an internal cooling circuit extending across both the first and second portions for circulating coolant therethrough. At least one supply passage extends between the internal cooling circuit and the internal platform cavity and includes an array of pin fins and turbulators for diverting coolant to the internal platform cavity.

Abstract: An impeller blade that includes an impeller blade body constructed of a first material. The impeller blade body defines a leading edge that faces a direction of rotation. A second material couples to the leading edge. The second material is a more erosion resistant material than the first material. The second material extends over the leading edge a distance to absorb high angle impacts of droplets and/or particulate. A third material couples to at least a portion of the impeller blade body.

Abstract: An annulus filler may include an outer lid defining an airflow surface for air being drawn through the engine in an axial airflow direction and a support structure configured to connect the outer lid to a rotor disc. The annulus filler may include a composite material including a plurality of relatively high-modulus reinforcement elements, a plurality of relatively tough polymer-based reinforcement elements, and a matrix material substantially encapsulating the plurality of relatively high-modulus reinforcement elements and the plurality of relatively tough reinforcement elements.

Abstract: A gap closing wearliner may comprise a first liner portion disposed within a groove of a compressor vane case, the first liner portion having first surface parallel to an inner face of the groove and a second surface parallel a lower face of the groove, the first liner portion formed to a contour of the groove and configured to receive a tongue of a pedestal having a vane, a gap between the first surface of the first liner portion and the tongue, and a high Coefficient of Thermal Expansion (CTE) material. The gap closing wearliner may further comprise a second liner portion disposed within the groove of the compressor vane case, formed to the contour of the groove, and configured to receive the tongue of the pedestal.

Abstract: An aft frame assembly has a main body with an upstream facing surface, a downstream facing surface, a radially outer facing surface and a radially inner facing surface. Feed hole inlets are located on the upstream facing surface and radially outward of the outer sleeve so that the feed hole inlets are located to receive input from a high pressure plenum. The feed hole inlets are coupled to cooling channels that pass through the main body. Microchannels are formed in or near the radially inner facing surface and the downstream facing surface. The cooling channels are connected to and terminate in the microchannels. Exit holes are connected to the plurality of microchannels, and the exit holes are located radially outward of the transition piece and radially inward of the outer sleeve. The exit holes are located to exhaust into the cooling annulus.

Abstract: An aft frame assembly for a gas turbine transition piece has a main body with an upstream facing surface and downstream facing surface. Feed hole inlets are located on the upstream facing surface, and each feed hole inlet is coupled to a cooling channel that passes through the main body towards the downstream facing surface. Plenums are located in or near the downstream facing surface. Each cooling channel is connected to and terminates in a plenum. Microchannels are formed in or near the downstream facing surface, and each microchannel is connected to a plenum. The cooling channels are configured as inputs and the microchannels are configured as outputs of the plenums. Two or more of the cooling channels and two or more of the microchannels are connected to one plenum. Exit channels are connected to the microchannels, and exhaust flow out of an upstream facing surface of a seal slot.