Abstract: The invention relates to a heat exchanger for motor vehicles, especially for utility vehicles. Said heat exchanger comprises a heat exchanger unit (2), constituted of tubes (5) having tube ends and ribs (6) disposed between said tubes (5), and collecting tanks (3, 4), disposed on both ends and produced by internal high pressure forming for introducing and discharging a medium. Said collecting tanks (3, 4) comprise bottoms with openings for receiving the tube ends, covers and inlet and outlet tubes (7, 11).

Abstract: A plate heat exchanger includes a heat exchanger block having a plurality of heat exchange passages. On the heat exchanger block, a header is mounted that extends over at least one part of one side of the heat exchanger block and establishes a flow connection between part of the heat exchange passages. The plate heat exchanger is provided with a fluid connection, which is formed by the header-side end of a pipeline. The fluid connection is essentially perpendicular to the side of the heat exchanger block over which the header extends. Within the pipeline directly in front of its end, there is a flow guide.

Abstract: An oil pumping unit is disclosed to include a motor, which has a mover that moves alternatively up and down when the motor is electrically connected, and a pump, which has a barrel, an oil suction pipe mounted in the barrel, an inner sleeve, which is connected to the suction pipe and has installed therein a mixing valve, a movable valve and a piston, a bottom one-way oil intake valve, and an one-way mixing flow intake valve respectively arranged in such a manner that when the mover is operated to reciprocate the oil suction pipe, cruel oil is alternatively pumped through the one-way bottom oil intake valve and the one-way mixing flow intake valve to alternatively pass through the movable valve and the mixing valve to the ground.

Abstract: The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

Abstract: The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

Abstract: The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

Abstract: The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

Abstract: According to a first preferred aspect of the invention, there is provided a downhole sand screen device for use in well completions that comprises a plurality of isolated individual sand screens. Further, in the preferred arrangement the instant invention consists of two screens, one concentrically nested inside of the other, and further wherein the screen sections are not continuous but rather are periodically interrupted by sections of blank pipe. Further, the screen sections are arranged so that a screen section on the outer pipe will be matched by a corresponding, but staggered, blank pipe section on the inner pipe. As a consequence, if a hole develops in one of the outer screen sections the movement of sand will be blocked from entering the wellbore by a second/inner screen.

Abstract: A formation evaluation tool positionable in a wellbore penetrating a subterranean formation is provided. The formation evaluation tool includes a cooling system adapted to pass a cooling fluid near electronics in the formation evaluation tool whereby heat is dissipated therefrom, the electronics has at least one gauge, a fluid communication device having an inlet adapted to receive the formation fluid and a flowline operatively connected to the fluid communication device and the gauge for placing the formation fluid in fluid communication therewith whereby properties of the formation fluid are determined. The formation evaluation tool may also be provided with a plurality of sample chambers operatively connected to the flowline for collecting at least a portion of the formation fluid and a pressure compensator in fluid communication with the wellbore and operatively connected to the plurality of sample chambers for applying pressure to the sample chambers whereby pressure is balanced therebetween.

Abstract: Methods of stabilizing unconsolidated portions of a subterranean formation are provided. In one embodiment, the methods comprise: creating or enhancing at least two slots in an unconsolidated portion of a subterranean formation along a well bore, wherein the slots are positioned about 180 degrees from each other along the inner surface of the well bore; introducing a consolidating agent into the slots in the unconsolidated portion of the subterranean formation; and creating or enhancing at least one fracture in a portion of the subterranean formation.

Abstract: The gas lift flow surveillance device has a paddle having a rod with a target attached to one end and a paddle block attached to the opposite end. The paddle block is pivotally disposed within a surveillance device housing body. A contact extending from the paddle block exerts pressure against a strain input area of a load cell. The load cell has a machine-readable millivolt output that changes according to a strain input from the paddle. A bottom section of the housing body has a bore defined therein that receives a threaded hex nipple, the rod passing through the nipple. The threaded hex nipple is adapted for attachment to a flow pipe National Pipe Thread (NPT) aperture for attaching the surveillance device to a flow pipe with the target in the fluid flow path.

Abstract: Downhole equipment oxidation and injection well plugging consequential of non-cryogenic nitrogen utilities is prevented or alleviated by injecting a residual oxygen scavenging compound such as ammonium bisulfite into the predominately nitrogen and residual oxygen flow stream emerging from a non-cryogenic nitrogen concentration process.

Abstract: A cavitation device is used to heat, concentrate and recycle or otherwise reuse dilute and other oil well fluids, brines and muds, and solution mining fluids, all of which commonly contain ingredients worthy of conservation. The cavitation device can be powered by a Diesel engine whose exhaust may be used to heat the incoming fluid, and the product of the cavitation device is directed to a flash tank.

Abstract: An apparatus and method for disassociating natural gas from a deposit of natural gas hydrates and producing natural gas. A reactor module is located downhole in a heating and injection well. Water is provided to the reactor module where it is heated and a solvent is injected into the water prior to heating. The heated water and solvent passes to the deposit of natural gas hydrates where the natural gas is disassociated under the influence of the heat from the reactor module.

Abstract: A wellbore apparatus and method for use in a wellbore for completion and production are disclosed. The apparatus comprises an outer permeable material (15) in the wellbore comprising a first basepipe section (11) with at least a portion of the basepipe is perforated (21), the first basepipe is inside the outer permeable material (15) and at least part of the perforated basepipe is designed to be adjacent to a production interval (14), a second basepipe section (10) with at least a portion of the second basepipe is slotted (16), the second basepipe is inside the outer permeable material (15) and above the perforated basepipe section (11) designed to be adjacent to the production interval wherein at least a portion of the slotted basepipe is designed to be adjacent to a non production section of the wellbore. The production completion apparatus may be installed into the wellbore to provide redundancy against well-screen failure.

Abstract: Fracturing of a subterranean formation may be achieved using a hydrogel. A preferred gel is formed from a gel precursor formulation which comprises an aqueous formulation of poly(1,4-di(4-(N-methylpyridinyl))-2,3-di(4-(1-formylphenyl)butylidene), poly (vinyl alcohol) and a suitable proppant, in the presence of an acid catalyst. The gel may be prepared at the surface with a viscosity of greater than 200 cp measured at 100 s?1 and then injected into the subterranean formation under high pressure to fracture the formation.

Abstract: Hydraulic fracturing proppants for use in propping fractures in subterranean well bores comprising sand particles and methods for their manufacture are described. According to one or more embodiments, the proppants exhibit a narrow particle size distribution, crush resistance, sphericity, roundness and turbidity. Methods for propping open fractures during a hydraulic fracturing operation are also described.

Abstract: Methods comprising: providing a treatment fluid that comprises a base fluid and a least a plurality of coated particulates, the coated particulates having been treated with a surface modification agent and coated with a hydrolysable coating; placing the treatment fluid into a subterranean formation via a well bore. Also provided are methods comprising: treating a particulate with a surface modification agent; coating the particulate with a hydrolysable coating that has an initial degradation rate to produce a coated particulate; placing the particulate in a subterranean formation; and allowing the hydrolysable coating to degrade at a second degradation rate that is slower than its initial degradation rate.

Abstract: The present invention provides a cement shoe assembly for use on a string of tubulars in a well. In one aspect of the invention, the cement shoe assembly includes a housing having a lower portion with an enlarged inside diameter and a drillable cement shoe disposed therein. The shoe includes a weakened portion of material adjacent the enlarged inside diameter portion of the housing and ensures that as a cutting tool passes through the housing, all portions of the cement shoe are removed from the enlarged inside diameter portion, leaving a connection surface clear of debris for a subsequent tubular string. When a smaller tubular is expanded into the enclosed diameter portion of the housing, a connection is made therebetween without enlarging the outer diameter of the housing.

Abstract: Methods for stabilizing portions of a subterranean formation that comprise unconsolidated particulates. In one embodiment, the methods of the present invention comprise: providing a consolidating agent; introducing the consolidating agent into an unconsolidated portion of a subterranean formation through a dynamic diversion tool; and allowing the consolidating agent to at least partially consolidate the unconsolidated portion of the subterranean formation.

Abstract: A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

Abstract: A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid comprising at least one polymerizable monomer and at least one antistatic agent to control build up of static charge. The second fluid is preselected to provide a measure of control of the pressure within the annular volume as the fluid within the volume is being heated.

Abstract: In the presence of certain polyols, a guar gum or similar polysaccharide thickener solution is boron crosslinked before achievement of complete hydration of the thickener, without compromising the viscosity level achieved in a fracturing fluid by the time it is pumped into the wellbore and fractures the subterranean formation adjacent the wellbore. Methods continuously involve hydrating a polysaccharide thickener to an extent of 10% to 75%, but less than full hydration. Before 75% hydration is exceeded, a boron crosslinker is added. Upon addition of the boron crosslinker, the fluid is injected into the wellbore to stimulate hydrocarbon production. Because less time is needed for hydration, well site mixing equipment is down-sized smaller to achieve better efficiency and cost savings.

Abstract: Methods and compositions for use in subterranean operations, and more particularly, additives comprising one or more silicates used to treat tar resident in a well bore, and methods of use, are provided. In one embodiment, the method comprises a method of treating tar resident in a well bore comprising providing a tar-treating additive comprising one or more silicates introducing the tar-treating additive into the well bore; and allowing the tar-treating additive to react with the tar resident in the well bore so as to at least partially reduce the adhesiveness of the tar.

Abstract: A wellbore system for simultaneously drilling a wellbore into an earth formation and producing hydrocarbon fluid from the wellbore, is provided. The system comprises a production tubing extending into the wellbore and having a hydrocarbon fluid inlet arranged in a first part of the wellbore in fluid communication with a hydrocarbon fluid bearing zone of the earth formation, and a drilling riser extending through the production tubing and having a drilling fluid inlet in fluid communication with a second part of the wellbore, said second wellbore part being scaled from said first wellbore part. A drill string extends through the drilling riser and into said second wellbore part so as to allow further drilling of the wellbore.

Abstract: Oil production from formerly producing wells may be restored without removing a preexisting production tube by perforating the production tube above the tubing packer and charging the casing annulus at the surface with a pressurized charging fluid fluid, preferably deoxygenated air, that is lighter than water. The pressurized charging of the casing annulus with charging fluid is continued to purge the production tube flow bore of a static water column and reduce the tubing column head pressure against the formation production zone.

Abstract: Rotatable flange adaptor or rotatable flange is provided, such that bolt holes may be aligned for joining of flanges. A sealing device may be added to the hub of the adaptor, such that the sealing surfaces are not rotated. Keys are placed in races to provide for transmittal of force along the axis of the device while allowing rotary motion of a flange or flange adaptor.

Abstract: A system and method is provided for sensing parameters within a wellbore. At least one sensor sub is coupled between stage components of an electric submersible pumping system. A plurality of sensor subs can be disposed between adjacent pairs of stage components to obtain sensor data along the electric submersible pump string. Each sensor sub contains a sensor element or elements designed to sense parameters internal and/or external to the electric submersible pumping system.

Abstract: The rig for selectively inserting coiled tubing or a threaded tubular through a rig floor 13 and into a well includes a mast 15 extending upward from the rig floor and movable between a threaded tubular position and a coiled tubing position. A top drive 21 is movable along an axis of the mast to insert the threaded tubular in the well when a top drive axis 42 is substantially aligned with the axis 44 of the well. Injector 17 supported on the mast inserts coiled tubing into the well, with the injector having an axis 46 offset from the top drive axis and substantially aligned with the axis of the well when the mast is in the coiled tubing position. A powered drive 54 is provided for selectively moving the mast between the threaded tubular position and the coiled tubing position.

Abstract: An hydraulic latch for selectively securing and, when necessary, automatically releasing capillary tubing suspended in a well bore in a manner affording clearance of a subsurface safety valve through which the suspended capillary tubing is suspended prior to release.

Abstract: A reverse out valve (100) comprises an outer housing (120) and a mandrel (144) that form a bypass region (130) therebetween. The mandrel (144) includes a central flow path (164) with a valve seat (152) positioned therein and first and second side wall ports (148, 150). A valve element (168) is positioned in the central flow path (164). The valve element (168) and the valve seat (152) having a one way valve configuration that prevents downhole fluid flow and allows uphole fluid flow. The mandrel (144) is axially movable relative to the outer housing (120) between first and second positions. In the first position, a bypass passageway (184) is formed between the first and second side wall ports (148, 150) via the bypass region (130) thereby allowing bypass flow around the valve element (168) and the valve seat (152). In the second position, bypass flow is prevented.

Abstract: The present disclosure addressed apparatus and methods for forming an annular isolator in a borehole after installation of production tubing. Annular seal means are carried in or on production tubing as it is run into a borehole. In conjunction with expansion of the tubing, the seal is deployed to form an annular isolator. An inflatable element carried on the tubing may be inflated with a fluid carried in the tubing and forced into the inflatable element during expansion of the tubing. Reactive chemicals may be carried in the tubing and injected into the annulus to react with each other and ambient fluids to increase in volume and harden into an annular seal. An elastomeric sleeve, ring or band carried on the tubing may be expanded into contact with a borehole wall and may have its radial dimension increased in conjunction with tubing expansion to form an annular isolator.

Abstract: An inflatable horseshoe support pad for preventing and treating laminitis and navicular syndrome, among other maladies, including a body member and an inflatable bladder. The inflatable horseshoe pad is mounted between the hoof of the horse and the horseshoe with the bladder mounted on the upper surface of the body member near the heel portion so that it engages the frog of a horse's hoof when installed on the hoof. The support pad is mounted under the bladder. A frog pad can also be mounted under the support pad.

Abstract: A fire suppressant system having a pipe system, spray nozzles connected to the pipe system and a control system for selectively charging the pipe system with foam. The control system includes a pilot line for generating a signal based upon sensing an environmental parameter and a first control valve for activating the system based upon the signal. Preferably, the first control valve forms i) an interior cavity for mixing the compressed air and compressed air liquid, ii) an outlet in fluid communication with the interior; iii) a first inlet, oriented substantially perpendicular to a flow through the outlet, in fluid communication with the interior and the compressed air; and iv) a second inlet, oriented substantially perpendicular to the flow, in fluid communication with the interior and the compressed air liquid.

Abstract: An early suppression fast response pendent-type fire protection sprinkler is suitable for use in accordance with one or more of NFPA 13, NFPA 231 and NFPA 231C to protect single row rack storage, double row rack storage and multiple row rack storage, the sprinkler having a K-factor of about 25 and flowing pressure of about 15 pounds per square inch. Preferably, the sprinkler has a body defining an orifice and an outlet for delivering a flow of fluid from a source, and a deflector mounted with a first surface opposed to flow of fluid from the outlet. The deflector defines at least one pair of generally opposed reentrant slots extending from the first surface through the deflector, the reentrant slots extending from slot openings at an outer peripheral edge of the deflector inwardly from the peripheral edge toward a deflector axis.

Abstract: A method of stopping and containing fires involving, in one embodiment, taking the fumes from a turbine, jet or any chemical source, and running it through a giant muffler, radiator, or pipe. The radiator cools the fumes down from the engine or chemical store. This is a system that uses the fumes to cool the fire down, it will suck the heat and oxygen away, and replace it with a non-combustible gas. This system can also be used to put out architectural fires, by blowing the fumes in the building from one side, keeping oxygen from entering the building, by building up pressure, until no more oxygen can enter the building.

Abstract: A power tool system includes a two-handed power tool having first and second start actuators, one for each hand of an operator. A controller prevents the power tool from initiating an operating cycle unless both actuators are turned ON to reduce the possibility of the operator's hands being disposed in a hazardous position during operation of the power tool. To discourage manual override of the dual-start-switch system, the controller prevents the power tool from initiating an additional operating cycle until both actuators have been switched OFF and then ON again. The second actuator includes a tubular sleeve that extends over part of the power tool to allow the sleeve to slide axially relative to the power tool between ON and OFF positions. Axial movement of the sleeve from its OFF position to its ON position turns ON the second start actuator.

Abstract: The invention concerns an electric motor-driven screw driving or drilling tool device with a planetary gear (4), comprising a ring gear (6) and planet wheels (8) mating with the ring gear, wherein the planet wheels are driven to roll on the ring gear, and the axles (10) of the planet wheels drive a drive shaft, and with a torque adjusting means (34), wherein the ring gear (6) can be locked and fixed relative to the housing via locking bodies (16) which are pretensioned by springs in a radially inward direction, the locking bodies (16) being radially outwardly displaceable when a switch-off torque has been exceeded, such that the ring gear (6) can be rotated relative to the housing, and the drive shaft is no longer driven.

Abstract: A hand-held power tool includes a main housing (10) in which a drive motor (12) located, a handle housing (6) connected with the main housing (10) with a possibility of a limited displacement relative thereto in at least one spatial direction (H), a motor switch (16) provided on the handle housing (6), and a cabling (14) for electrically connecting the motor switch with the drive motor (12) and surrounded by protective sheathing (38).

Abstract: Apparatuses for reducing electrical stress from outer conductive ground electrodes of the type used to protect high voltage coils (40) having an insulated coil surface are described that includes a composite tape (32) bonded to a secondary conductive layer (34) in a half lap manner, the composite layer comprising a glass conductive tape bonded to a layer of mica paper tape in an edge lap manner. Methods for reducing the electrical stress using the apparatus of the invention are also described.

Abstract: A tamper-resistant electrical receptacle disclosed herein includes a cover assembly having at least one pair of apertures, a cover, and at least one slider that rests in the cover behind one pair of the apertures. The slider is held in a first position where it covers both apertures such that an object is blocked from entrance in either aperture and, thereby, blocked from accessing either receptacle terminal formed in the base assembly connected to the cover assembly. This first position is maintained until prongs are substantially inserted simultaneously into the apertures causing the slider to move into a second position where the prongs are enabled to pass through the apertures, engaging the receptacle terminals. After the prongs are removed from the receptacle terminals, the slider automatically retracts to the first position. When only one aperture is probed by an object, however, the slider remains confined in the first position.

Abstract: A security block for securing I/O ports of an electronic instrument physically prevents any breach of data through a protected I/O port, such as a USB port, by securing cables that may be plugged into the port by means of a locked cover. The cables are prevented from being removed and USB memory devices are prevented from being connected in their place. In a second aspect, a portion of the security block covers unused I/O ports thereby preventing USB memory devices and other devices from being connected to unoccupied I/O ports. The locking mechanism can be either a padlock, or a locking screw, or the like.

Abstract: A method of insulating an article comprising: surrounding at least a portion of the article with an insulating layer, inserting the article portion surrounded by the insulating layer into an outer protective sleeve, and shrinking the outer protective sleeve around the insulating layer.

Abstract: A method of electrical isolation for printed circuit board gasketing is disclosed for enabling gasketing to overlay plated through holes without shorting out thereto. The method of electrical isolation for printed circuit board gasketing includes counterboring at a controlled width to a controlled depth those plated through holes underlying the gasketing. The method provides the advantage of being able to overlay gasketing on both surfaces of a printed circuit board mid-plane. The method of electrical isolation for printed circuit board gasketing is particularly useful for overcoming the additional material requirements and processing steps of electrical isolation known in the art.

Abstract: A printed wiring board on which a pattern can be formed favorably by printing and soldering even where a small part of the 1005 size or less is mounted. The printed wiring board includes a substrate; a pair of soldering lands on the substrate, the soldering lands being spaced from one another with a first side of one land opposing a first side of another land; and a mounted part having a pair of electrodes on opposite ends thereof soldered to the respective lands. A wiring line is connected to each soldering land, and an insulating element overlies the wiring lines. The insulating element has openings formed so as to expose the soldering lands therethrough. Wiring line connection elements are individually connected to only the first sides of the lands. Each insulating element opening has an edge positioned outside of the corresponding land and on the inner side of the corresponding wiring line connection element.

Abstract: A circuit board comprises a base film that is a base layer, a first conductive circuit manufactured by hardening conductive paste material formed in a predetermined shape on the base film, a first insulating layer manufactured by hardening insulating paste material formed on the base film and the first conductive circuit, and a second conductive circuit manufactured by hardening conductive paste material in a predetermined shape on the first insulating layer, wherein an electronic part built-in by the first insulating layer and second insulating layer is connected to the second conductive circuit, and the first conductive circuit is connected to the second conductive circuit through a via hole.

Abstract: A shielding member is proposed for shielding an opening on a side of a server cabinet, the opening being adjacently connected to a base panel of a server cabinet, wherein the server cabinet includes a first positioning portion corresponding to the opening. The shielding member includes: a body, which is dimensioned to cover the opening; an operational portion formed on the body to correspond to a side of the back panel of the server cabinet, wherein the operational portion is formed with a second positioning portion corresponding to the first positioning portion; and a combining portion formed on the body and away from the side of the base panel of the server cabinet, for being combined with the side of the opening away from the base panel, so as to effectively and conveniently shield the opening adjacently connected with the base panel of the server.

Abstract: A method and associated apparatus for providing an electromagnetic seal in electrical enclosure of a device. The apparatus comprising of an electromagnetic gasket formed of a thin conductive material, having a first end and an opposing end. The apparatus also includes a conductive chassis disposed in the electrical enclosure and having protrusions for securing at least one end of the gasket. The other end of the gasket is also secured to the chassis in a manner to provide facility of compression.

Abstract: The current invention discloses a drill bit assembly with a body portion intermediate a shank portion and a working portion. The working portion may have at least one cutting element. The drill bit assembly may also have a shaft with a first end disposed within the assembly, a second end of the shaft may protrude from the working portion and at least one probe may be disposed within the shaft.

Abstract: In some aspects of the present invention, a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element. In some embodiments, the drill bit assembly has a shaft with an end substantially coaxial to a central axis of the assembly. The end of the shaft substantially protrudes from the working portion, and at least one downhole logging device is disposed within or in communication with the shaft.