Abstract: A structured papermaking fabric for making a bulky tissue web, including: a web facing side and an opposite side, the web facing side including a structure formed by interweaving of transverse yarns with longitudinal yarns, the structure including a plurality of pattern areas being regularly distributed on the web facing side and each of said pattern area being surrounded by an edge area, said pattern areas are woven in a plain weave and each of said edge areas including at least one longitudinal and at least one transverse edge segment, said longitudinal edge segment being formed by weaving of a longitudinal yarn over at least four, preferably at least five, consecutive transverse yarns, said transverse edge segment being formed by weaving of a transverse yarn over at least four consecutive longitudinal yarns.

Abstract: A distribution unit for adding a fiber suspension to an inlet space in a dewatering press is disclosed. The distribution unit comprises a distribution housing, which forms at least one distribution slit intended to be connected to the inlet space of the dewatering press, and at least one inlet member for adding the fiber suspension to the distribution slit. The distribution housing is provided with at least one opening to the distribution slit and a matching hatch for sealing the opening. The hatch is hinged to the distribution housing so that it is pivotable relative to the distribution housing between a first position and a second position. An inlet box is also disclosed comprising a number of the distribution units.

Abstract: Described are wrought forms of copper alloys for infiltrating powder metal parts, the method for preparing the copper alloys and their wrought forms, the method for their infiltration into a powder metal part, and the infiltrated metal part infiltrated with the novel alloys having a generally uniform distribution of copper throughout and exhibiting high transverse rupture strength, tensile strength and yield strength. Infiltrated metal parts prepared by infiltrating powder metal parts with reduced amounts of the novel infiltrant typically weigh less and have superior strengths compared to similarly prepared infiltrated metal parts prepared with standard methods and conventional infiltration.

Abstract: To cast one or more metal articles, a mold structure is positioned on a support with an anchor extending upward from the support into the mold structure. The mold structure and anchor are interconnected by a retainer which extends through a portion of the mold structure into the anchor. When the mold structure is immersed in a cooling bath, force is transmitted between the mold structure and anchor to retain the mold structure against movement relative to the support.

Abstract: A method of casting metal articles includes providing a plurality of interconnected support sections. Article mold sections are positioned on the support sections. After article mold cavities, have been filled with a molten metal which is at a first temperature, the support sections and a body of a second molten metal are moved relative to each other while the body of a second molten metal is at a temperature which is less than the first temperature. Space extending between side surfaces of the support sections and between side portions of the article mold sections is filled with the second molten metal during movement between the support sections and the body of a second molten metal. A layer of insulating material may be provided above the body of a second molten metal. A baffle may be provided between a container holding the body of a second molten metal and a furnace assembly.

Abstract: The present disclosure is directed to a refractory metal core for use in forming varying thickness microcircuits in turbine engine components, a process for forming the refractory metal core, and a process for forming the turbine engine components. The refractory metal core is used in the casting of a turbine engine component. The core is formed by a sheet of refractory metal material having a curved trailing edge portion integrally formed with a leading edge portion.

Abstract: Provided is a method of continuously producing a phosphorus-containing copper alloy wire by adding phosphorus or an element which is less soluble than phosphorus to molten copper. The method includes: adding an element less soluble into a heating furnace for maintaining molten copper sent from a melting furnace at a predetermined high temperature; transferring the molten copper sent from the heating furnace to a tundish; adding phosphorus to the molten copper after decreasing the temperature of the molten copper in the tundish; supplying the molten copper from the tundish to a belt wheel-type continuous casting apparatus; and rolling a cast copper material output from the belt wheel-type continuous casting apparatus, thereby continuously producing a phosphorus-containing copper alloy wire.

Abstract: An air conditioner indoor unit A includes a body casing 1, which accommodates a fan 2 and a heat exchanger 3. A top plate 13 is arranged in an upper portion of the body casing 1. A longitudinal reinforcement rib 14, which divides the top plate 13 into a first region 13a and a second region 13b, is formed in the top plate 13. A first lateral reinforcement rib 15, which extends between the longitudinal reinforcement rib 14 and a corresponding one of side edges 13c of the top plate 13, is formed in the first region 13a. A second lateral reinforcement rib 16, which extends between the longitudinal reinforcement rib 14 and the other side edge 13c of the top plate 13, is formed in the second region 13b. The reinforcement ribs 14, 15, 16 thus significantly increase the rigidity of the top plate 13 as a whole. Further, if the first and second lateral reinforcement ribs 15, 16 are formed by stretch-forming, torsion and flexure of the top plate 13 caused by spring back after the ribs 15, 16 are formed are decreased.

Abstract: A heat dissipating system includes a chassis, a number of heat dissipating members received in the chassis, and a number of duct cover. The chassis defines a number of cavities corresponding to the outlets of the heat dissipating members is defined in the chassis. Each duct cover includes an outer flap and an inner flap. An opening is defined in the outer flap. The outer flap is rotatably mounted to the chassis to cover or uncover the corresponding cavity. The inner flap is rotatably mounted to the outer flap to cover or uncover the opening.

Abstract: The present invention provides a heat exchanger including a stack of plates which form ducts. Each of the plates can have at least two openings which, in the plate stack, form at least one collecting duct and one distributor duct which connect the ducts in terms of flow. A base plate can be arranged on the plate stack and can have a seal for sealing off the heat exchanger and a flow deflector for manipulating flow through the heat exchanger. The seal and the flow deflector can form a common component.

Abstract: A cooler (20) arranged in a PCU (12) is provided with a bottom plate (22), a top plate (28) and a shell (30) arranged between the bottom plate and the top plate. The shell (30) is provided with an inflow side pipe (32) and an outflow side pipe (34) for making a cooling medium flow inside. The bottom plate (22) is provided with fixing holes (36, 38) for fixing the cooler (20) at a suitable position in the PCU (12). Between the fixing hole (38) and the outflow side pipe (34), a notched section (42) is arranged on the bottom plate (22) to partially reduce rigidity so that the shell (30) does not break when an impulsive power is applied to the cooler (20). A notched section (40) may be arranged between the part where the fixing hole (36) is arranged and the inflow side pipe (32).

Abstract: A method of maintaining the structural integrity of heating conduit used to heat a permeable body of hydrocarbonaceous material enclosed within a constructed permeability control infrastructure. The method includes obtaining a heating conduit with corrugated walls and configured for transporting a heat transfer fluid, burying the heating conduit at a depth within the permeable body of hydrocarbonaceous material and with an inlet end extending from the boundary of the constructed permeability control infrastructure, operably coupling the inlet end of the heating conduit to a heat source of the heat transfer fluid, and passing the heat transfer fluid through the heating conduit to transfer heat from the heat transfer fluid to the permeable body, with the corrugations in the corrugated walls mitigating longitudinal axis thermal expansion of the heating conduit and allowing the heating conduit to conformably bend in response to subsidence of the permeable body.

Abstract: A temperature control system for semiconductor manufacturing equipment is disclosed, which can properly cool a process chamber adopted in the semiconductor manufacturing equipment such as a wafer etching device. The temperature control system for semiconductor manufacturing equipment includes a thermocline for cooling heat transfer fluid accommodated therein through a heat exchange with a heat exchanger and storing heat energy, a supply line for controlling the temperature of the heat transfer fluid in the thermocline through a heater and supplying the heat transfer fluid with a proper temperature to a process device, a recovery line for forwarding the heat transfer fluid having passed through the process device to the thermocline, and a bypass for forwarding a part of the heat transfer fluid passing through the recovery line to the supply line through the heater.

Abstract: Methods and apparatus for heating and cooling portions of a fluid are provided. The method may include flowing a stream of a fluid through a heat exchanger, separating a liquid component from the stream of the fluid, flowing the liquid component through the heat exchanger, and redirecting the flow of the stream back through the heat exchanger, thereby cooling the initial stream of fluid flowing through the heat exchanger and heating the liquid component flowing through the heat exchanger. The apparatus may include a housing, a heat exchanger disposed within the housing, a refrigeration system in fluid communication with the heat exchanger, and a control system in fluid communication with the heat exchanger.

Abstract: A heat dissipating fin has a skirt having distal and proximal edges formed on at least one edge of the heat dissipating fin and multiple fastening components. Each fastening component is formed on the skirt and abuts the fringe of an adjacent the heat dissipating fin and has a hook and a hook mount. The hook is formed on and protrudes from the distal edge of the skirt. The hook mount is formed in the proximal edge of the skirt and corresponds to the hook. Since the hook is easily mounted through the hook mount the heat dissipating fins can be fabricated to form a heat sink easily to reduce manufacturing costs.

Abstract: A heat dissipation device includes a first heat sink thermally contacting an electronic component, a second heat sink connecting to the first heat sink, and a heat pipe thermally connecting the first heat sink with the second heat sink. The first heat sink defines a receiving portion at a lateral side thereof. The heat pipe includes an evaporating section attached to the first heat sink, a condensing section attached to the second heat sink and a connecting section interconnecting the evaporating section with the condensing section. An engaging portion protrudes from a lateral side of the second heat sink and is firmly embedded in and lockable with the receiving portion of the first heat sink. The heat pipe extends through the engaging portion.

Abstract: According to one embodiment, a radome includes two dielectric layers separated by an internal layer. The internal layer is configured with an internal cooling system including a fluid channel that receives a fluid through an inlet port, conducts heat from the radome to the fluid, and exhausts the heated fluid through an outlet port.

Abstract: A thermal module includes a heat sink and a cooling fan. The heat sink has a main body, from an outer periphery thereof a plurality of radiating fins and at least one fixing section are outward extended. The fixing section is provided on one lateral side with at least one first mating part. The cooling fan has a housing having a blade hub arranged therein. The housing is provided on one side facing toward the heat sink with at least one second mating part and an axially raised wall portion. The raised wall portion is pressed against the heat sink to thereby define a space between the cooling fan and the heat sink. The cooling fan and the heat sink can be quickly assembled together through engagement of the first and the second mating part with one another to reduce the material and labor costs of the thermal module.

Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan so as to surround the cooling fan; an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. The cooling fan is rotatable within a space provided on a radially inner side of the inner circumferential wall. The air-flow-direction downstream side end of the outer circumferential wall is provided at a further upstream position in the air flow direction than an air-flow-direction downstream side end of the cooling fan.

Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan; and an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of an outer circumferential edge of the cooling fan is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An angle between: an line connecting the air-flow-direction downstream side end of the inner circumferential wall to the air-flow-direction downstream side end of the outer circumferential wall in cross section along the air flow direction of the inner circumferential wall and the outer circumferential wall; and a line orthogonal to the air flow direction, is 9 degrees or more and 45 degrees or less.

Abstract: A method for in-situ treatment of a metallic surface utilizing a nanoparticle dispersion to increase at least one of (i) the critical heat flux. (ii) the boiling heat transfer rate, or (iii) the corrosion resistance of the metallic surface when in operation without a nanofluid heat transfer liquid, comprising: (1) cleaning the metallic surface: (2) conditioning the metallic surface to enhance nanoparticle binding to the metallic surface by applying a polymeric binding agent; (3) forming at least one thin film layer of nanoparticles on the metallic surface by contacting the nanoparticle dispersion with the metallic surface at a temperature and pressure sufficient to boil the nanoparticle dispersion; and, optionally (4) curing the nanoparticle layer by heating the metallic surface to a temperature higher than the temperature sufficient to boil the nanoparticle dispersion.

Abstract: A counter-flow heat exchanger for a vehicle air conditioning system includes a first lateral tank having an inlet chamber and an outlet chamber. The first lateral tank includes an inlet port fluidly connected to the inlet chamber and an outlet port fluidly connected to the outlet chamber. The outlet port is positioned adjacent an uppermost portion of the first lateral tank for reducing air pockets. A second lateral tank is laterally spaced apart from the first lateral tank. A first set of tubes fluidly connects the inlet chamber of the first lateral tank to the second lateral tank. A second of tubes fluidly connects the second lateral tank to the outlet chamber of the first lateral tank.

Abstract: The invention relates to a self-fluxing brazing piece. The piece comprises a composite material comprising at least one inorganic material distributed in a metal or metal alloy matrix, the inorganic material forming a flux during brazing to promote the formation of a thermally induced metallic bond. The matrix may be an aluminium silicon brazing alloy and the inorganic material may be a potassium-fluoro-aluminate flux. The piece is made by spray forming.

Abstract: An air-supplied dry cooler for the condensation of water vapor includes at least one direct-flow condenser and at least one counter-flow condenser (dephlegmator), wherein heat exchanger pipes of the counter-flow condenser are connected to an upper suction chamber, and wherein a cover reducing the discharge cross-section of at least one heat exchanger pipe is provided with cover orifices. The sum of the cross-sectional surfaces of the cover orifices corresponds to no more than the cross-sectional surface of a suction pipe connection to the suction chamber.

Abstract: The invention relates to a condenser for refrigerators with gravity-type convection, especially for domestic refrigerators, comprising at least one tape-shaped line (1) which has a width at least twice as large as its thickness, at least two channels (3,4) separated from each other and arranged one adjacent to the other, and, if used in accordance with the invention, is installed on end and largely almost parallel to the bottom edge of the refrigerator. Line sections arranged one behind the other in the direction of flow have the top edge of the preceding line section each offset in parallel in the direction of flow relative to the bottom edge of the succeeding line section. The use of commercial extruded sectional aluminium tubes makes it possible to manufacture a condenser at reasonable cost with excellent heat exchange properties.

Abstract: A multi-chamber heat exchanger header includes a header housing and an insert. The header housing has a first wall and a second wall generally opposite the first wall where the first and second walls define a track. The insert is positioned to engage with the track such that the insert separates the header into first and second manifold chambers. A method for forming a multi-chamber heat exchanger header includes extruding a header housing having first and second manifold chambers and a track, positioning an insert in the header housing to engage with the track, and welding or brazing the insert to the header housing.

Abstract: A heat exchanger includes a plurality of tubes in which a thermal fluid flows, and a tank located at one longitudinal end portion of each tube and is brazed to the longitudinal end portions of the tubes to communicate with the tubes. The tank and the tube are respectively made of clad material plates in each of which a brazing material is clad on at least one surface of a core material. The brazing material of the tank and the brazing material of the tube respectively include Si content. Furthermore, a rate of the Si content in the brazing material of the tank is lower than that in the brazing material of the tube, and is in a range larger than 0% and equal to or smaller than 6%. Thus, meltage of the tube due to molten brazing material can be reduced during brazing of the tube and the tank.

Abstract: The invention concerns a heat exchanger and a method of producing thereof. The heat exchanger comprises a coolant housing with two opposing wide side walls and two header plates of an inlet air tank and an outlet air tank, respectively. The header plates are channel-shaped with longitudinal flanges extending over and being brazed to the wide side walls. Tubes extend in parallel through said housing between the two header plates, said tubes being brazed to apertures in said header plates. The coolant housing has two opposing narrow side walls tightly fitting said wide side walls and said header plates and defining together with these wide side walls and header plates a first coolant tank and a second coolant tank opposing the first one. Each air tank comprises a cowling tightly fitting and being brazed to one of said header plates each and having an air inlet and an air outlet, respectively.

Abstract: A heat exchanger for a fluid having a vapor-phase and a liquid-phase is provided. The heat exchanger includes a first manifold, a second manifold, a plurality of parallel channels, a mixing device, and one or more baffles. The parallel channels are in fluid communication with the first and second manifolds. The mixing device mixes the fluid flowing into the first manifold so that the fluid is a substantially homogeneous two-phase mixture of the vapor and liquid phases. The baffles are within the first manifold and ensure that the fluid enters the parallel channels as the substantially homogeneous two-phase mixture.

Abstract: A method for producing a composite from at least two metal components that have perforations or openings, especially for producing a cooler or cooling elements or heat sinks that have at least one composite. The components are joined to each other to yield the composite by heating them to a process temperature while using a joining agent or joining surfaces defined by surface faces of the components. To produce components having complicated geometric shapes, thereby increasing their cooling capacity, at least a first component is not flat, and is joined to at least one flat or non-flat component to yield the composite.

Abstract: Provided are a heat spreader for a semiconductor device, which can be joined such that a multitude of pin-shaped fins are not easily fractured even when the heat spreader for a semiconductor device is incorporated in a heat dissipation structure for a semiconductor device, in which direct cooling is performed by using water, and a method for manufacturing the heat spreader for a semiconductor device. The heat spreader (1) for a semiconductor device comprises: a plurality of columnar members (13) joined onto at least one of surfaces of a plate-like member (11, 12) by stud welding; and a joining layer (14) formed between the plate-like member (11, 12) and the columnar members (13). The plate-like member (11, 12) includes a base material (11) and surface layers (12). The surface layers (12) and the columnar members (13) are made of a material containing aluminum or an aluminum alloy. A thickness of the plate-like member (11, 12) is 0.5 mm through 6 mm and a thickness of each of the surface layers (12) is 0.

Abstract: A thermal module includes a conductive base disposed on a heat source for conducting heat generated by the heat source, and a plurality of thermal fins disposed substantially on the conductive base in parallel. A plurality of protruding portions is formed on each thermal fin in a direction whereto the thermal fins are stretched from the conductive base, and the protruding portions of adjacent thermal fins are arranged alternately in the direction whereto the thermal fins are stretched from the conductive base so as to dissipate the heat conducted to the conductive base from the heat source.

Abstract: An air conditioner is provided. The air conditioner includes a heat exchanger which exchanges heat with air by passing a coolant therethrough; and an anti-freeze apparatus which prevents the freeze of water on the surface of the heat exchanger by supplying energy to the heat exchanger. The air conditioner can prevent the freeze of water on the surface of the heat exchanger during its operation, and thus, there is no need to perform a defrost operation during the operation of the air conditioner. In addition, the air conditioner can continuously and efficiently perform an air conditioning function.

Abstract: A centralized-monitoring apparatus, which centralized monitors a device including a storage, a temperature sensor to detect a temperature therein, and a temperature-variable device to cool or heat inside the storage such that the temperature reaches a set object-preservation temperature, comprises: an input device to be input with first information indicative of a time zone in which the temperature-variable device performing power-saving operation and second information indicative of a set temperature of the time zone; a storage device to store the first-and-second information from the input device; a timing device to measure a current time; and a control device to control the temperature-variable device, based on the first-and-second information and current time, so as to start operation of turning the temperature to the set temperature when the current time reaches a starting time of the time zone, and terminate the operation when the current time reaches an ending time thereof.

Abstract: A fan convector heating unit (10) has a housing (11) having an air duct (12) extending therethrough. A heat exchanger (21) is disposed within the air duct (12) and is adapted for fluid connection to a water heating system, when the heating unit (10) is installed. A fan (18) is disposed within the housing (11) and is arranged to cause air to flow through the air duct (12) and over the heat exchanger (21). Control means are provided to activate and deactivate the fan (18) upon the water within the heat exchanger (21) reaching pre-determined activation and deactivation temperatures. Both the activation and deactivation temperatures are interchangeably variable between standard and low energy activation and deactivation temperatures.

Abstract: Methods and apparatus for heating and cooling portions of a fluid are provided. The method may include flowing a stream of a fluid through a first coil of a heat exchanger, separating a liquid component from the stream of the fluid, flowing the liquid component through a second coil of the heat exchanger, and flowing the stream of the fluid leaving the first coil over the first coil and the second coil, thereby cooling the stream of fluid flowing through the first coil and heating the liquid component flowing through the second coil. The apparatus may include a housing, a heat exchanger disposed within the housing, a separation chamber disposed within the housing and operable to separate a liquid component of the fluid, and a control system in fluid communication with the separation chamber and the heat exchanger, wherein the control system is operable to direct the liquid component from the separation chamber to the heat exchanger.

Abstract: A fluid cooler comprises a first stage fluid cooler and a downstream second stage fluid cooler. A flow line connects the first and second stages. A valve senses a condition of the fluid in the flow line, and to bypass the second stage fluid cooler if it is determined that additional cooling is not necessary. An air compressor incorporating the cooler is also claimed as is a method of operating a fluid cooler.

Abstract: A hanger system is provided for supporting a cable-supported dewatering pump in a gas well. A dewatering pump is supported in a downhole location by a cable. A cable hanger bears the weight of the cable and the weight of the dewatering pump. A pulling tool is configured to detachably connect to the cable hanger and to support the weight of the cable hanger, cable and gas well dewatering system as it is pulled out of a seated position in the well.

Abstract: A system in some embodiments includes sealing system including an energizing member that simultaneously seats a plurality of sealing elements about a plurality of control lines, respectively. Further embodiments provide a method including disposing a plurality of sealing elements about a plurality of control lines, respectively, and fastening an energizing member to simultaneously seat each of the sealing elements.

Abstract: Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described.

Abstract: Methods and apparatus for diverting fluids either into or from a well are described. Some embodiments include a diverter conduit that is located in a bore of a tree. The invention relates especially but not exclusively to a diverter assembly connected to a wing branch of a tree. Some embodiments allow diversion of fluids out of a tree to a subsea processing apparatus followed by the return of at least some of these fluids to the tree for recovery. Alternative embodiments provide only one flowpath and do not include the return of any fluids to the tree. Some embodiments can be retrofitted to existing trees, which can allow the performance of a new function without having to replacing the tree. Multiple diverter assembly embodiments are also described.

Abstract: Example methods and apparatus to perform stress testing of geological formations are disclosed. A disclosed example downhole stress test tool for pressure testing a geological formation comprises first and second packers selectively inflatable to form an annular region around the tool, a container configured to store a fracturing fluid, wherein the fracturing fluid is different than a formation fluid and a drilling fluid, a pump configured to pump the fracturing fluid into the first and second packers to inflate the first and second packers and to pump the fracturing fluid into the annular region to induce a fracture of the geological formation, and a sensor configured to detect a pressure of the fracturing fluid pumped into the annular region corresponding to the fracture of the geological formation.

Abstract: Configurations for gas well dewatering systems having overpressure protection to protect a pump and its peripheral equipment from damage due to overpressure are provided.

Abstract: A downhole tool has a mandrel with slip assemblies positioned thereon above and below a packer element. The slip assemblies are positioned in a manner to anchor the downhole tool in the well. The slip assemblies include a slip ring which has a plurality of slip segments. Each slip segment has inserts disposed in cavities therein. The cavities are oriented such that the longitudinal central axis of each cavity is parallel to the longitudinal central axis of each of the other cavities in the slip segment.

Abstract: Apparatus for downhole filtration in a wellbore The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged.

Abstract: An actuator device for moving a tool within a borehole in the ground, the actuator being positioned between a coiled tubing and a tool, and the actuator being arranged to move the tool at a substantially constant axial speed and the actuator including a motor-operated mandrel which is moved outwards in the actuator by means of a releasable nut, the nut being locked in its active position by means of a hydraulically operated locking piston.

Abstract: Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated oil and gas well production device includes an oil and gas well production device including one or more bodies, and a coating on at least a portion of the one or more bodies, wherein the coating is chosen from an amorphous alloy, a heat-treated electroless or electro plated based nickel-phosphorous composite with a phosphorous content greater than 12 wt %, graphite, MoS2, WS2, a fullerene based composite, a boride based cermet, a quasicrystalline material, a diamond based material, diamond-like-carbon (DLC), boron nitride, and combinations thereof. The coated oil and gas well production devices may provide for reduced friction, wear, corrosion, erosion, and deposits for well construction, completion and production of oil and gas.

Abstract: A power transmission system for use with downhole equipment in a borehole includes a power source that is positioned at the surface providing a DC power supply, a downhole DC/DC converter and a two-conductor cable connecting the power source and the downhole DC/DC converter. The power transmission system receives the DC voltage supply as an input and provides an output DC supply at a different voltage to the DC power supply for provision to the downhole equipment.

Abstract: Methods and systems relate to recovering hydrocarbons from within formations in which hydrocarbon bearing reservoirs are separated from one another by a fluid flow obstructing natural stratum. Relative to the reservoirs, the stratum inhibits or blocks vertical fluid flow within the formation. Drilled bores arranged to intersect the stratum provide an array of fluid flow paths through the stratum. Fluid communication established by the drilled bores enables production utilizing a producer borehole deviated from vertical and processes that rely on techniques such as gravity drainage through the fluid flow paths and/or injection through the fluid flow paths.

Abstract: Described is a method for introducing at least one manufactured gas in the area of an oil reservoir for the purpose of enhancing the recovery of the oil reservoir. The gas is at least temporarily introduced in shock waves.