Abstract: The present invention relates to compositions and processes of using perfluoropolyether to maintain or improve the oil return, lubrication, cooling capacity or energy efficiency of the refrigeration, air conditioning and heat transfer system.

Abstract: A heat dissipating device includes a heat sink, and an adjusting member. The heat sink includes a base, and a plurality of fins formed on a top surface of the base. The adjusting member includes a mounting portion mounted to a side surface facing an airflow-generating source of the base, a first air-blocking portion connected to an upper portion of the mounting part, and a second air-blocking portion connected to a lower portion of the mounting part. Positions of the first air-blocking portion and the second air-blocking portion relative to the base are adjustable for adjusting distribution of an airflow on top and bottom sides of the base when the airflow flows through the heat dissipating device.

Abstract: A heat dissipation device includes a base, and a plurality of parallel fins extending up from the base. Every two adjacent fins are spaced from each other for forming a passage to allow airflow therethrough. Together, the passages form an air inlet at one side of the heat dissipation device and an air outlet at an opposite side of the heat dissipation device. Each fin has an air conductive portion located at a side thereof nearby the air inlet. Each air conductive portion gradually tapers in a direction away from the device.

Abstract: A heatsink device is provided herein, which mainly contains a larger number of pins made of highly thermal conducting material into fiber-like linear segments. The fiber-like fins have one of their ends inserted into tubular holders which are fused or welded together into a planar base, or into the holes on the top surface of a planar base. The fiber-like fins therefore extend upward with appropriate spacing among them, and can be further woven into webs.

Abstract: A heat dissipating device comprises a heat tube; one end of the heat tube being a heated end and another end thereof being a cooling end; at least one side of the cooling end being formed with a recess; each recess being coated with tin glue; and a fin set being formed by a plurality of fins; each fin being formed with a through hole; one side of the through hole being formed with a flange. In assembly; the recess of the cooling end of the heat tube is coated with tin glue. The cooling end of the heat tube is inserted into the through holes of the fins of the fin set; and the upper and lower edges of the through holes have the effect of correcting the heat tube.

Abstract: A heat dissipating device comprises a heat tube; one end of the heat tube being a heated end and another end thereof being a cooling end; at least one side of the cooling end being formed with a plane; each plane being coated with tin glue; and a fin set being formed by a plurality of fins; each fin being formed with a through hole; each through hole having an upper cambered edge, a lower cambered edge, a left side, and a right side; the left and right edges being as correcting edges; one side of the through hole being formed with a flange. In assembly; the plane of the cooling end of the heat tube is coated with tin glue. The cooling end of the heat tube is inserted into the through holes of the fins of the fin set; and the upper and lower edges of the through holes have the effect of correcting the heat tube.

Abstract: A radiator with buckle is disclosed. At least two buckling plates buckle to the radiator. The radiator comprises a plurality of fins. The fin has at least one hole for receiving the above buckling plate. The buckling plate has a main body, the two sides of the main body have at least one pressing portion that fit into holes of the radiator. The main body has a least one protrusion extending towards a direction opposite to the pressing portion from another side thereof to buckle to a corresponding buckle. The buckling plates are securely buckled to the radiator.

Abstract: Disclosed herein is a plasma processing apparatus that introduces a process gas into an airtight processing container, that applies a radio frequency power to generate plasma, and that conducts a plasma process to an object to be processed arranged in the processing container. The plasma processing apparatus includes: an electrode unit arranged in the processing container, the electrode unit having an electrode for applying the radio frequency power, and a space portion arranged in the electrode unit, the space portion insulating the electrode and the processing container from each other. The space portion communicates with atmospheric air outside the processing container.

Abstract: A transition assembly is provided for connecting a heat exchanger to an external flow path. The assembly includes a fluid connection tube and a transition tube. The ends of the fluid connection tube and the transition tube are sized such that one tube may be inserted within the other tube. A portion of the exterior tube may then be deformed to retain the interior tube. The ends may be shaped by conventional methods such as swaging.

Abstract: A waste heat recovery device includes a heat pipe in which a working fluid for transporting heat is enclosed, and a mode-switching valve for switching a heat recovery mode and a heat insulation mode. The heat pipe has a heating part for heating and evaporating the working fluid and a cooling part for cooling and condensing the evaporated working fluid. The heating part is made of a steel through which hydrogen gas permeates about at 500° C. and higher. In the heat recovery mode, the waste heat recovery device recovers heat of exhaust gas by using the heat pipe. Furthermore, in the heat insulation mode, a heat transport from the heating part to the cooling part is stopped.

Abstract: A coolant phase changeable cooling apparatus using a capillary action is provided. The cooling apparatus prevents a generation of bubbles inside a wick of an evaporator or an inverse flow of a vaporized gaseous coolant through a wick. Also, a thermal contact area can be widened by using at least one groove of a gaseous coolant flow passage unit. Based on these provided effects, cooling efficiency of the cooling apparatus can be improved.

Abstract: A method, apparatus and system are described for carbon nanotube wick structures. The system may include a frame and an apparatus. The apparatus may include a heat exchanger, a cold plate with a cold plate internal volume, and a heat pipe in the cold plate internal volume. In some embodiments, the heat pipe includes a thermally conductive wall material forming the inner dimensions of the heat pipe, a catalyst layer deposited onto the wall material, a carbon nanotube array formed on the catalyst layer, and a volume of working fluid. Other embodiments may be described.

Abstract: A loop type heat dissipating apparatus with a sprayer for use in heat transfer between a heat source and a heat sink includes an evaporator, a condenser, and a working fluid. The evaporator contacts the heat source and includes a first chamber, a second chamber, and a sprayer disposed between therebetween. The condenser contacts the heat sink and includes a third chamber communicating with the second chamber and a wick structure disposed on one side of the third chamber. The working fluid fills the loop type heat dissipating apparatus and is turned into microdroplets via a sprayer. The sprayer impinges the microdroplets into the second chamber where the microdroplets are then evaporated by the heat source before proceeding to the third chamber for condensation, liquefaction and adhering to the wick structure. Eventually, the working fluid flows back to the first chamber under a pumping force actuated by the sprayer and completes the cycle.

Abstract: A heat exchanger assembly for cooling an electronic device comprises a flange, a dome, a plurality of condensing tubes, a shroud and a boiler plate. The dome is semi-cylindrical in shape with flat axial ends. A plurality of spaced condensing tubes is disposed in a plurality of fan rows with each fan row being in a fan plane to facilitate more-efficient heat transfer. The distal ends of each of the condensing tubes are elongated along the associated fan plane to define the fan rows in a fan shape. In other words, each fan row contains one elongated, fan-shaped condensing tube. The condensing tubes in adjacent fan planes terminate in an arch extending concentrically about the center axis at the flat axial ends of the semi-cylindrical dome. The pattern of the elongated condensing tubes resembles the erectile ribs of an igloo.

Abstract: Three embodiments of a heat exchanger assembly for cooling an electronic device are shown respectively in FIGS. 1-2, 3 and 4 and each comprises a flange, a dome, a plurality of condensing tubes, a shroud, and a boiler plate. In the first embodiment shown in FIG. 1, the dome is semi-spherical in shape and the distance measured axially along the center axis equals the distance measured laterally from or perpendicular to the center axis. In the second and third embodiments shown in FIGS. 3 and, 4, respectively, the distance measured axially along the center axis is greater than the distance measured laterally from or perpendicular to the center axis. The domes in the second and third embodiments are an ellipsoid and a semi-logarithmic body, respectively. In all embodiments, a plurality of condensing tubes aligned in fan rows and arced rows extend from the dome to distal ends to facilitate more-efficient heat transfer.

Abstract: The invention provides a heat exchanger assembly having a housing which defines a boiling chamber extending along an axis between opposite ends. A plurality of first condensing tubes extend axially and downwardly in one direction at a first predetermined angle to and below the axis (A) from the housing and a plurality of second condensing tubes extend axially and upwardly in the opposite direction at the same predetermined angle to and above the axis (A) from the housing. The volume of refrigerant in the housing is greater than the volume of the second condensing tubes and the volume of the boiling chamber.

Abstract: A modular CPU cooling unit designed to fit within the available space within an existing box or cabinet containing a CPU. The fan, pump and liquid to air cross flow heat exchanger are fitted within the available volume with the fan spaced away from the heat exchanger a suitable distance to pull air through the entire face area of the heat exchanger, even though it is considerably larger than the fan.

Abstract: A light weight hybrid heat exchanger core possessing low density and improved thermal conductivity is disclosed. The hybrid core is comprised of a plurality of parting sheets and interposed by a plurality of high thermal conductivity, light weight bridging elements and enclosure bars. These core members are comprised of dissimilar materials. The parting sheets and bridging elements are interconnected by a specially tailored joint which forms form a substantially strong, high thermal conductivity bond. In particular embodiments, carbon-based bridging elements are bonded to metallic parting sheets using a brazed joint. The parting sheets, in certain embodiments, may comprise titanium or Ni-based superalloys or carbon composites, while the carbon-based bridging elements may comprise fiber-reinforced composites.

Abstract: A cooler module includes a heat pipe, which has one end terminating in a heat absorbing section that has at least one pane closely attached to the CPU to absorb heat from the CPU and a relatively greater metal wall thickness than the metal wall thickness of the heat pipe, and a heat sink connected to the other end of the heat pipe for dissipating heat absorbed from the CPU by the heat absorbing section of the heat pipe. The invention also provides a heat pipe for use in such a cooler module.

Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.

Abstract: Disclosed herein is a sensor system having a sensor and at least one communication line operable with the sensor. The transmission medium is configured to convey data transmitted by the sensor to a remote location. The sensor transmits data on the communication line a plurality of times by at least two methods of transmission or modulation. Further disclosed herein is a method based on the foregoing. Further disclosed is a method of communicating by modifying a voltage amplitude of a signal and receiving the communication signal by employing a variable threshold detection circuit in the downhole device. Further disclosed is a system for communicating data between a downhole device and a remote location including a remote device for generating a communication signal, the remote device configured to modify a voltage amplitude of said communication signal.

Abstract: In one embodiment an apparatus is disclosed that includes a tool in a wellbore. A probe is extendable from the tool to contact a wall of a formation surrounding the wellbore. A tube substantially surrounds the probe wherein the tube is extendable into the formation surrounding the wellbore. In another embodiment a method for reducing contamination of a sample of a formation fluid is disclosed that includes extending a probe to contact a wall of a formation. A barrier tube that substantially surrounds the probe is extended into the formation thereby restricting a flow of a contaminated reservoir fluid that would otherwise come from near-wellbore regions above and below the probe from going toward the probe.

Abstract: A scale inhibition method comprising: (a) injecting a dispersion of seed particles of an insoluble mineral salt in an aqueous medium into a formation through an injection well wherein the seed particles have an equivalent spherical diameter of 100% less than 100 nm, preferably 100% less than 50 nm, more preferably 100% less than 25 nm and the aqueous medium has dissolved therein precipitate precursor ions that form a precipitate of the insoluble mineral salt when contacted with resident ions in the formation; (b) allowing the dispersion to percolate through the subterranean formation towards production well and producing the dispersion from the production well; and (c) controllably precipitating the insoluble mineral salt onto the seed particles so as to reduce the deposition of the insoluble mineral salt onto the walls of the porous formation and/or onto the surface in the production well and/or onto the surface downstream of the production well.

Abstract: A well treating fluid useful in slickwater fracturing processes contains polyacrylamide friction reducer and a viscosity breaker capable of reducing the viscosity of the well treating fluid to about the viscosity of water at ambient temperatures of typical underground formations. The viscosity breaker is selected from the group consisting of hydrogen peroxide, calcium peroxide, magnesium peroxide, and zinc peroxide and is present in an amount above about 0.002% by weight.

Abstract: The invention concerns an aqueous delayed-gelation solution for use in hydrocarbon wells. According to the invention, the aqueous delayed-gelation solution a dissolved metal salt which, in use, hydrolyses to form a gel, wherein the solution contains suspended inorganic particles and the method comprises the steps of—providing the aqueous delayed-gelation solution, and—injecting the solution into the hydrocarbon well, whereby the suspended inorganic particles reduce or block the flow of the delayed-gelation solution to relatively low permeability formation zones thereby selectively placing the solution in a relatively high permeability formation zone.

Abstract: Methods and compositions for the treatment of subterranean formations, and more specifically, treatment fluids containing vitrified shale and methods of using these treatment fluids in subterranean formations, are provided. An example of a method is a method of displacing a fluid in a well bore. Another example of a method is a method of separating fluids in a well bore in a subterranean formation. An example of a composition is a spacer fluid comprising vitrified shale and a base fluid.

Abstract: A polymeric fluid loss additive for hydraulic cement which includes a polymer component which exhibits delayed hydration. The fluid loss additive is suitable for use in cement slurries which may be subjected to elevated temperatures, as is common in oil and gas drilling operations. By way of the invention, cement slurries are provided which have improved fluid loss properties at high temperatures, while maintaining manageable rheologies that are conducive to mixing, pumping, and the like across a broad range of temperatures.

Abstract: A fluid loss additive for hydraulic cement which includes at least two highly hydrolyzed polyvinyl alcohol resins having different molecular weights, or a polyvinyl alcohol resin composition having a broad molecular weight distribution. The fluid loss additive is suitable for use in cement slurries which may be subjected to elevated temperatures, as is common in oil and gas drilling operations. By way of the invention, cement slurries are provided which have improved fluid loss properties at high temperatures, while maintaining manageable rheologies that are conducive to mixing, pumping, and the like across a broad range of temperatures.

Abstract: Disclosed is a method and apparatus for forming wellbores and in a single trip for also performing multistage wellbore treatments. The disclosed apparatus comprises a bore forming apparatus in the form of a hydraulic drilling motor and bit; a well treatment apparatus in the form of a jetting tool and means for controlling flow to the jetting tool and drilling motor.

Abstract: A thermal in-situ method and apparatus are provided for recovering hydrocarbons from subterranean hydrocarbon-containing formations such as oil sands, oil shale and other heavy oil systems. Recovery of viscous hydrocarbon by hot fluid injection into subterranean formations is assisted by using a specially designed wellbore with an active hydraulic seal, with a axial communication zone with multiple injection perforations separated from the production perforations by a moveable packer. In addition, a novel downhole thermal sensing apparatus is used to monitor and control oil production. A producing mechanism including pumping equipment lifts the produced oil from the central cavity to the surface.

Abstract: Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for producing hydrocarbons from a subsurface formation includes providing heat to the subsurface formation using an in situ heat treatment process. One or more formation particles may be formed during heating of the subsurface formation. Fluid that includes hydrocarbons and the formation particles may be produced from the subsurface formation. The formation particles in the produced fluid may include cenospheres and have an average particle size of at least 0.5 micrometers.

Abstract: Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected productive or previously producing intervals in multiple interval well bores. One example of a method for treating a multiple interval well bore includes the steps of: providing an isolation assembly comprising a liner and a plurality of swellable packers wherein the plurality of swellable packers are disposed around the liner at selected spacings; introducing the isolation assembly into the well bore; allowing at least one of the plurality of swellable packers to swell so as to provide zonal isolation of at least one of a plurality of selected intervals; establishing fluidic connectivity to the at least one of a plurality of selected intervals; and treating the at least one of a plurality of selected intervals.

Abstract: A system for reducing pressure drop associated with turbulent fluid flow through conduits located in remote locations (e.g., deep under ground and/or deep under sea). Such reduction in pressure drop is accomplished by transporting a drag reducer through a long conduit of small diameter and thereafter injecting the drag reducer into a host fluid at the remote location, to make a treated fluid. The treated fluid is then extracted from the remote location via a production/transportation conduit. The presence of the drag reducer in the treated fluid reduces pressure drop associated with flow through the production/transportation conduit.

Abstract: A tool and associated method allows a liner top to be dressed. Then while maintaining a lateral port closed the tool can be used to circulate while being rotated and reciprocated. The tool features discrete j-slot mechanisms. The upper j-slot allows the lateral port to initially open while the lower j-slot keeps the lateral port open despite movement of the tool in opposed directions in the hole due to a barrier to the pin in the lower j-slot. When enough weight is set or the barrier is otherwise removed, the lateral port can be closed and the test packer set by set down weight with the lateral port closed. After the packer is unset the lateral ports can be reopened and circulation and swiveling on a bearing can occur even if the packer is temporarily actuated from the setting down motion that reopened the lateral ports.

Abstract: The invention relates to an instrumented tubular device for transporting a pressurized fluid notably in the field of oil exploration and in that of the transport of gas or hydrocarbons. This device comprises a tube (20) in which this fluid flows, with which are associated means for measuring the main deformations of this tube, and means for measuring the temperature of the fluid in the tube. This tube is equipped with measurement means integral with its surface and offset by at least one remote optical cable towards an electronic measurement system. These measurement means are means for assembling at least two non-parallel optical fibers which comprise at least three assemblies (B1, B2, B3) of at least two optical gages with Bragg gratings attached to at least three measurement locations (22) and connected to the remote optical cable (23) via optical fibers. At least one assembly further comprises a temperature gage.

Abstract: A gas and oil recovery system including a vessel, platform or rig, with a rig floor, a riser including a pipe that extends from the vessel, platform or rig to a x-mas tree on top of a well head and via which a wire or coiled tubing is fed down into a well. The riser is movable through an opening in the rig floor, and a surface flow head connected to the riser and to a wire line or coiled tubing equipment. The surface flow head is arranged to be run through the opening in the rig floor.

Abstract: A method for removing a downhole tool from a well bore comprises consuming at least a portion of the downhole tool within the well bore via exposure of the tool to heat and a source of oxygen. Another method of removing a downhole tool from a well bore comprises exposing the downhole tool to heat and a source of oxygen in situ within the well bore to desirably consume at least a portion of the tool within the well bore.

Abstract: A stuffing box for sealing around a polished rod in a well including a cylindrical connector for receiving the polished rod, a packing member having top and lateral surfaces and wherein the packing member is concentrically disposed around the polished rod, a body concentrically disposed around the packing member and sealing engaging the cylindrical connector, and wherein the body may be selectively moved to expose the top and lateral surface of the packing members is disclosed. A method of repairing, redressing, or replacing packing members of a stuffing box including providing a stuffing box at a wellhead, manipulating the stuffing box such that top and lateral surfaces of the packing members are exposed, removing the packing members, and redressing the stuffing box with new packing members is also disclosed.

Abstract: Memory tool deployment method, system, and apparatus include a landing ring fit on a pipe deployed in a well. A drop-off tool has a landing collar and has a tool string with one or more memory tools. The drop-off tool is connected to a wireline and is deployed through the pipe in the well with the wireline. The drop-off tool is landed on the landing ring on the pipe so that the memory tools extend beyond the pipe. The wireline is released from the drop-off tool and is removed from the pipe so that logging operations can be performed. After logging, the wireline is redeployed in the pipe in the well and is reconnected to the drop-off tool to retrieve the memory tools from the pipe.

Abstract: Pressure balanced downhole connections. A well system includes a well tool, a conduit assembly connected to the well tool, the conduit assembly including a conduit and a line positioned within the conduit, the line being connected to the well tool for operation of the well tool, and a device for equalizing pressure between an interior and an exterior of the conduit, the device being positioned downhole. A method of isolating a line in a subterranean well from well fluids in the well includes the steps of: connecting a conduit assembly to a device for equalizing pressure between an interior and an exterior of the conduit assembly, the conduit assembly including a line installed within a conduit; and positioning the conduit assembly and pressure equalizing device in the well.

Abstract: A technique is provided for actuating devices deployed in a wellbore. The technique utilizes an actuator that cooperates with a downhole device, such as a well tool. The actuator has a phase change material that can be caused to undergo a phase change upon an appropriate input. The phase change of the material is used to provide the force necessary for actuation of the downhole device.

Abstract: The present invention generally relates to a wellbore tool for selectively isolating a portion of a wellbore from another portion of the wellbore. In one aspect, a method of selectively isolating a zone in a wellbore is provided. The method includes the step of positioning a downhole tool in the wellbore. The downhole tool includes a bore with a first flapper member and a second flapper member disposed therein, whereby each flapper member is initially in an open position. The method also includes the step of moving the first flapper member to a closed position by rotating the first flapper member in one direction. Further, the method includes the step of moving the second flapper member to a closed position by rotating the second flapper member in an opposite direction, whereby each flapper member is movable between the open position and the closed position multiple times. In another aspect, an apparatus for isolating a zone in a wellbore is provided.

Abstract: A surface coating includes fire retarding and smoke suppressing constituents dispersed throughout an essentially non-toxic, water-based adhesive binder. The coating comprises a mixture of chemical compounds where each constituent falls into one of six functional groups, being: 1) catalyst/initiator; 2) expandable graphite; 3) carbonific, or source of carbon which additionally forms water; 4) blowing agent (a source of non-flammable gases); 5) cement; and, 6) ceramic.

Abstract: A work vehicle comprisies a blade and a hydraulics system for controlling operation of blade and non-blade functions of the work vehicle. The work vehicle is configured to be retrofitted with a blade position sensing and control system having cooperating onboard and vehicle-remote instrument packages without modification of the hydraulics system. An associated method is disclosed.

Abstract: An exemplary embodiment comprises a plurality of aerating members with each aerating member having two opposing end portions, an aerating portion, an inner surface, and an outer surface. The end portions of the aerating members being angled with respect to the aerating portion. A plurality of linking members are moveably coupled with fasteners to the end portions such that an alternating series of linking members and aerating members form a loop of such members for attaching to a tire. A plurality of stud members are attached to the aerating portion of the aerating members.

Abstract: The present invention is a hand held tool for brush and weed removal. It is a long or short handled weed extraction implement having combined features that facilitate easy and efficient weeding of all varieties of short and tall brush, bushes, bamboo, and the like. Further, the present invention is ideal for gathering the brush, weeds, and other debris, without changing tools. The invention is also adapted to loosening and leveling of the soil, again without changing tools. Unlike all other hand held weeding tools, the invention has a file for sharpening the tines and blade elements from time to time during the day while the tool is in the field. The file is mounted axially in the handle for convenience and to protect the file from rusting. The skill normally required for free-hand sharpening of blades is greatly reduced by the unique interfit of the file and elliptical shaped cutting edges. The invention also tends to induce better, safer, more ergonomic work habits among those who use the invention.

Abstract: A wetland foliage cutter designed for towed operation behind an ATV machine has adjustable buoyancy and a vertically adjustable wheel suspension. A tow frame holds a cutter drum for drag rotation about a horizontal rotational axis. A multiplicity of cutter blades are welded to the cutter drums for cutting or crushing wetland foliage as it rolls over it. The tow frame also holds a torsion bar wheel suspension that may be rotated and fixed at a desired angle and height for complete or partial support of the implement weight.

Abstract: A simplified spike tooth harrow includes an apertured bracket pivotally connected to the fore-and-aft connecting strap extending between the tine bars. The bracket adjustably supports a tine bar from the strap. A pin selectively secured in one of the apertures contacts the strap to set the working angle of the tines on the bar when the harrow is operated in the field. A chain or link connected to the bracket at a location offset from the bracket pivot suspends the harrow from an upper drawbar assembly which is movable vertically between field-working and transport positions. When the drawbar assembly is raised to the transport position so the harrow is out of ground contact, the bracket pivots so the pin is offset from the strap and can be easily and quickly removed from the aperture and reinserted in a different aperture to change the tine angle.

Abstract: A pneumatic tool (20) for impacting a workpiece (22) is provided. The tool (20) comprises a casing (42) defining a chamber (48). A piston (54) is slidable within the chamber (48) along an operational axis (A). An exhaust valve (100) controlled by a pilot valve (200) slides the piston (54) by selectively introducing and releasing pressurized fluid into and out from the chamber (48). The pilot valve (200) includes a valve housing (202) defining a pilot chamber (204) with a plunger (206) slidable in the pilot chamber (204). The pilot valve (200) actuates the tool (20) by quickly releasing pressurized fluid from the exhaust valve (100) to atmosphere. The pilot valve (200) includes a spring-biased annular seal (214) that is releasable from a poppet seat (222) to perform this function.

Abstract: An electrical cable that minimizes frequency sensitive group delay for consumer products and industrial use. A method constructing an electrical cable that minimizes frequency sensitive group delay for consumer products and industrial use. The cables utilize flat conductor made from resistive conductors. In other embodiments the conductors use a combination of metals where each has a different resistive property.