Abstract: The present invention relates to the heat absorbing or dissipating device with piping staggered and uniformly distributed from both sides toward the middle by passed temperature difference fluid, wherein the temperature difference fluid passes through the neighboring piping of the heat absorbing or dissipating device, and the synthetic temperature in the device is more uniform, so as to form a more uniform temperature distribution status on the passively heat dissipation or absorption receiving article or space.

Abstract: A plate heat exchanger (10) of the double plate type having a plurality of stacked plate elements, each comprising a first plate (1) and a second plate (9). At least the first plate (1) is provided with a surface pattern with a plurality of dimples (5) defining a first distance to a plate plane (8), and a plurality of canal parts (6) defining a second, smaller, distance to the plate plane (8). The first plate (1) and the second plate (9) are joined in such a manner that the protruding areas (5, 6) in combination form flow paths (11) being fluidly connected to rim portions (3) of the plates (1, 9). The heat exchanger (10) provides efficient leakage detection via the flow paths (11) while ensuring a good thermal contact between heat exchanging fluids through the plates (1, 9) via flat portions (7) between the protruding parts (5, 6).

Abstract: Heating, ventilation, air conditioning, and refrigeration (HVAC&R) systems and heat exchangers are provided that include multichannel tube configurations designed to reduce refrigerant pressure drop through a heat exchanger manifold. In certain embodiments, tubes inserted within the manifold adjacent to a refrigerant inlet have non-rectangular or recessed end profiles configured to increase flow area near the inlet, thereby reducing a pressure drop through the manifold. In further embodiments, insertion depths of the tubes within the manifold vary based on distance from the inlet. This configuration may establish a larger flow area adjacent to the inlet, thus reducing the pressure drop and increasing heat exchanger efficiency.

Abstract: The invention concerns a header plate, preferably for a heat exchanger, such as water cooled charge air cooler (WCCAC), comprising a coolant housing having two opposing walls made up from two header plates (11, 12), which are made of sheet metal of a defined thickness (t). The header plates (11, 12) form parts of air tanks and are passed by air tubes extending through said coolant housing from one of said header plates (11, 12) to the other. The header plates (11, 12) have stamped apertures (15), in which said air tubes are inserted and tightly connected to the header plate sheet metal. The apertures (15) have peripheral rims (22), which protrude on one side of the header plate (11, 12) in question and give an extra support to the air tubes inserted in the apertures (15) of said header plate (11, 12). The distance (da) between adjacent apertures (15) and thus the distance (dt) between adjacent air tubes is less than two times the thickness (t) of the header plate sheet metal.

Abstract: A communication plate extends along and is sandwiched between cylindrical communication manifolds of a first heat exchanger assembly and a second heat exchanger assembly. The communication plate includes a saddling surface arcuate in one direction and a saddling surface arcuate in the opposite direction for engaging in saddle-like fashion the cylindrical shape of the manifolds. The communication plate defines a plurality of communication plate orifices disposed along the communication plate and aligned co-axial with a plurality of communication orifices disposed along the manifolds to seal the communication orifices of the manifolds and establish distributed and sealed fluid communication between the heat exchanger assemblies.

Abstract: A heat exchanger that includes a collecting tank having a collecting tank edge, a tube plate including a tube plate edge, and a seal arrangement with a seal between the collecting tank and tube plate. The heat exchanger further includes a seal support frame, and the seal is arranged on the seal support frame and the seal is inlaid together with the seal support frame between the tube plate edge and the collecting tank edge.

Abstract: A vehicle heating and/or air-conditioning system has an automatic heating and air-conditioning function. In a manual control mode, corresponding to an air quantity settable by the user with a first setting device and a desired interior temperature settable by a second setting device, a manual control of the actual interior temperature and the air quantity takes place. In an automatic-function control mode, corresponding to the desired interior temperature settable by the user and a selected air-conditioning style, an automatic-function control of the actual interior temperature takes place by controlling fans and air distribution flaps corresponding to the selected air-conditioning style. A characteristic fan curve and/or a characteristic air distribution curve is assigned to each air-conditioning style.

Abstract: A method for breaking a fracturing fluid includes identifying application parameter(s) including a subterranean formation temperature, and determining an acid precursor concentration in response to the application parameter(s). The method further includes providing a treatment fluid including a carrier fluid, a metallic peroxide breaker, and an amount of an acid precursor according to the acid precursor concentration, and treating the subterranean formation with the treatment fluid. The application parameter(s) may further include a flowback wait time, a composition of the metallic peroxide breaker, a gel loading of the carrier fluid, and/or a permeability of the subterranean formation. The metallic peroxide breaker may include an alkaline peroxide and/or a zinc peroxide. The acid precursor may include polylactic acid and/or polyglycolic acid.

Abstract: A perforating charge for use in a wellbore includes an explosive and a liner to be collapsed by detonation of the explosive. The liner includes at least a first liner portion and a second liner portion which have different cohesiveness.

Abstract: A system and methods for drilling a well in an orientation with respect to an existing well are provided. Specifically, one method in accordance with present embodiments includes producing a magnetic field with a magnetic field source positioned in the first well, producing a first output from a first magnetic field sensor subsystem for sensing directional magnetic field components, and producing a second output from a second magnetic field sensor subsystem for sensing directional magnetic field components. The first and second magnetic field sensor subsystems are positioned a distance apart from one another within the second well. Further, the first and second outputs are responsive to the magnetic field produced by the magnetic field source.

Abstract: A packer device, with a commercial name called “Frac Disc” includes an interior packer mandrel and radially surrounding cone, slip and seal system that seals and engages the surrounding casing or other tubular member. The cones expand the slip system and the slips compress and expand the seal system, simultaneously. The slip system provides a means for supporting the seal system when pressure is applied from above or below the packer. The close proximity of the seal and slip system in combination with a separating packer body provides for a very short packer, or a “minimum material packer”, that offers lower cost, higher performance, and if required, faster mill-out.

Abstract: A packer-anchoring device between an annular packer and a body, wherein the annular packer is provided, at least at one of its end portions, with an expandable end ring.

Abstract: A wellhead system comprising an outer wellhead housing, an inner wellhead member, and an annulus therebetween. The inner wellhead member, such as a casing hanger, is adapted to land in the outer wellhead housing. The outer wellhead housing may comprise a wickers formed in a hardened metal inlay. Alternatively, or in addition to the wickers formed in the outer wellhead housing, wickers may be formed in a hardened metal inlay in the inner wellhead member. An annular metal seal may be disposed in the annulus and driven into the wickers to seal the annulus between the inner wellhead member and the outer wellhead housing and to axially restrain the seal within the annulus.

Abstract: Example methods, apparatus and articles of manufacture to measure gas reservoir formation pressures are disclosed. A disclosed example method includes positioning a downhole bubble sensor in a wellbore formed in a geological gas reservoir formation, trapping a fluid in a portion of the wellbore including the bubble sensor, pressurizing the trapped fluid, reducing pressurization of the fluid until the bubble sensor detects one or more bubbles in the fluid, recording a pressure of the fluid when the bubble sensor detects the one or more bubbles, and determining a formation pressure of the gas reservoir from the recorded pressure.

Abstract: Methods and apparatus for acquiring mud gas logging data, comparing the mud gas logging data to second data associated with a sidewall fluid sample measurement, and adjusting calibration data associated with a mud gas logging tool based on the comparison of the mud gas logging data and the second data associated with the sidewall fluid sample measurement.

Abstract: The present invention relates to an enhanced oil recovery process that is integrated with a synthesis gas generation process, such as gasification or methane reforming, involving combined capture and recycle of carbon dioxide from both processes.

Abstract: The present invention relates to an enhanced oil recovery process that is integrated with a synthesis gas generation process, such as gasification or methane reforming, involving combined capture and recycle of carbon dioxide from both processes.

Abstract: A method for recovering gas from a subterranean formation having a hydrate deposit located therein and a gas reservoir located under the hydrate deposit that includes injecting a hydrate-forming fluid into an upper region of the gas reservoir neighboring the hydrate deposit; and producing gaseous hydrocarbons from a lower region of the gas reservoir is disclosed.

Abstract: The present invention relates to a process for the production of mineral oil from mineral oil deposits with large temperature gradients, in which, for increasing the mineral oil yield, highly permeable regions of the mineral oil formation are blocked by injecting formulations which, after being forced into the deposit, form highly viscous gels under the influence of the deposit temperature. A plurality of portions of the formulation which in each case can form gels at different temperatures and therefore result in very complete blocking of highly permeable regions of the formation are used.

Abstract: A substance and method for treating a subterranean formation using hydraulic fracturing. A non-metallic, substantially deformable, proppant particle is “elastically flexible” or “plastically compressible” and adapted for use at concentrations which will substantially create a partial monolayer.

Abstract: A method of plugging wells wherein cementitious materials (like Portland cement) are formed into pellets that can be dumped or dropped into a well that is filled with an aqueous solution. The pellets will fall quickly to the bottom of the well or mechanically placed barrier, and over time, the pellets will loose their structure and release dry cementitious material into aqueous well fluid. The cementitious material will wet in the aqueous well fluid and then set to form an impermeable plug in the well.

Abstract: A method of retarding the flow of water in a subterranean formation that includes injecting a gelling pill into the formation, the gelling pill comprising: brine; a crosslinkable polymer; and a crosslinkant; and allowing the crosslinkable polymer to crosslink to form a gel in the subterranean formation is disclosed. A water absorbing polymer is optionally included.

Abstract: A method and equipment for an instrumented tubular joint apparatus for use in a pipe string comprising an upper tubular section with a threaded connection thereabove and an axial passage for fluid to flow through connected to a lower tubular section with a threaded connection therebelow and an axial passage for fluid to flow through, a sensor to measure strain at the instrumented tubular joint, a data recording and transmitting unit operatively connected to the sensor, means to relate the data acquired by the sensor to a surface processing unit; and a mechanism to disconnect the upper section from the lower section after receiving a signal from the surface processing unit. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: An oil shale formation may be treated using an in situ thermal process. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. Heat input into the formation may be controlled to raise the temperature of portion at a selected rate during pyrolysis of hydrocarbons within the formation. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation.

Abstract: A method for improving liquid injection into a rock formation. The method includes the steps of introducing a gas impulse device into a wellbore in the formation and pumping a pressurized liquid into the wellbore. The method also includes firing the gas impulse device periodically so that the device generates impulses of high pressure compressed gas. The gas expands through the pumped pressurized liquid substantially instantaneously increasing the liquid flow rate into the rock formation, and creates rapid cyclical injected liquid surges into the rock formation with liquid oscillation occurring inside the fractures and/or pores of the formation. The method may be used in regular oil production applications, waterflooding of wells that have ceased to be productive, in preventing lost circulation in oil wells, and in injecting hazardous wastes into rock formations.

Abstract: A pressure equalizing system allows flow past an upper seal on a movable member downhole that in turn allows pressure to be delivered from uphole into what had previously been an isolated low pressure zone. The pressure differential across the member is equalized before attempting to move the member into another position. In the preferred embodiment the member is a ball in a ball valve for subterranean use.

Abstract: A flapper valve with magnetic field hold open arrangement including a housing; a flapper pivotally mounted to the housing; and a magnet housing slidably mounted to the housing such that a magnetic field generating configuration of the magnet housing is movable between a position where it is capable of holding the flapper in an open position and where it is incapable of holding the flapper in an open position. A method for holding open a flapper of a flapper valve.

Abstract: A flapper for a downhole valve including a surface configured to substantially geometrically mate with a tubular section within which the flapper is mounted when in an open position. The surface reduces an amount of fluid that can exist between the flapper and a housing member thereby reducing the effect of turbulence on the flapper. The geometrically mating surface may be a hard surface that is configured to mate or may be a softer surface that will self conform.

Abstract: A stabplate connection is provided by: providing a first part (1) comprising a stabplate and carried by an underwater structure; providing a second part (2) comprising a stabplate carried by tooling (4); engaging the tooling with said first part; using the tooling to bring the parts together so the stabplates mate with each other; using the tooling to lock the first and second parts together by engaging a portion (6) carried by the first part with a portion (10) carried by the second part; disengaging the tooling from the first part; and removing the tooling from the stabplate connection.

Abstract: A method of monitoring a subsea pipeline system connecting one or more wells to a floating production system, wherein the pipeline system is at least partially flexible, the method comprises installing a continuous optical fibre distributed sensor as part of the pipeline system, the sensor capable of providing a distributed measurement of temperature, vibration, pressure or strain, or any combination thereof; using the sensor to obtain a distributed measurement of temperature, vibration, pressure and/or strain along at least part of the pipeline system indexed to a length thereof; and using the distributed measurement to predict the actual condition of the fluid, the pipeline system and/or the adjacent sea water using a model.

Abstract: The present disclosure generally provides apparatus and methods for removing a subsea well head. The apparatus may include an embedded shear comprising a pile and a shear cutter integrated into the pile. The shear cutter may be mounted within the pile near a lower end thereof. The pile may include a well head conductor receptacle adapted to receive a subsea well head, and the shear cutter may include a shear blade that extends across the well head conductor receptacle when activated. The method may include providing a pile with a shear cutter integrated therein, lowering the pile over the well head, pumping water out of the pile to drive the pile into the seafloor to a desired cutting depth, activating the shear cutter to cut off a portion of the well head, and pumping water into the pile to drive the pile out of the seafloor.

Abstract: The invention relates to a downhole hydraulic control tool comprising a substantially tubular body adapted for connection in a tubing string, the body including a throughbore arranged coaxially with a bore of the tubing string and one or more pockets arranged on a wall of the body, the pockets including a hydraulic power source and at least two control lines, wherein the device includes a pump to drive hydraulic fluid through the control lines and a switchable flow mechanism for switching the flow of pumped fluid between the at least two control lines. Also provided are a switchable flow mechanism and a method of operating one or more downhole devices from a downhole located hydraulic control tool.

Abstract: The method of providing a pressurized control fluid for the operation of subsea equipment of providing an accumulator with control fluid pressurized by compressed gas, supplying the control fluid to a control valve for the purpose of operating a function, receiving a return flow of the control fluid from the function to a control valve, directing the return flow of the control fluid to a low pressure chamber whose pressure is substantially unaffected by the subsea environmental pressure, and maintaining the low pressure level in the low pressure chamber.

Abstract: A method of activating a downhole tool assembly. The downhole tool assembly has a sleeve with a continuous j-slot, a lug rotator ring configured to move axially relative to the sleeve and having a lug configured to move within the continuous j-slot, and a rupture disk configured to prevent the lug from moving within the continuous j-slot during run-in. The method includes lowering the downhole tool assembly into a well bore on a tool string, rupturing the rupture disk, allowing the lug to move within the continuous j-slot, and setting the downhole tool assembly by lifting upward and pushing downward on the tool string.

Abstract: Methods and systems for stimulating a wellbore. A coil tubing bottom hole assembly is disclosed which includes a jetting tool. A non-caged ball sub is coupled to the jetting tool and a ported sub is coupled to the non-caged ball sub. Additionally, a caged ball sub is coupled to the ported sub.

Abstract: The present invention relates to a method for providing one or more seals in an annular space between a well tubular and the surrounding formation or between pipes of a wellbore system for providing sectioning thereof.

Abstract: A flame-blocking system includes flame retardant foam having at least one through hole and at least one flame retardant tube passing through the through hole. Both the flame retardant foam and the flame retardant tube comprise graphite, aluminum hydroxide and ammonium phosphate in addition to a base resin. The flame-blocking system prevents flames and toxic gases generated during a fire or a similar accident from being spread through holes through which a wire, a cable or a pipe is installed across a wall of buildings or ships, which can reduce damage to life and property.

Abstract: The subject invention comprises a flexible multilayer fire-rated material that has at least one layer of an intumescent material. Because it is flexible, the fire-rated material is usable in situations where it is desirable for the fire-rated material to be rolled up or folded into a non-flat storage application. This allows the subject fire-rated material to be used in fire-rated and smoke-resistant barriers that are recessed in walls or ceilings until use. One end use embodiment includes without limitation, recessed or rolled up fabrics used in elevator lobby ceilings to seal off elevators or their lobbies from smoke or fire.

Abstract: The present invention relates to a device for rapidly extinguishing a fixed-wick oil stove by closing off an oil-supply tube when the oil stove is overturned or an earthquake occurs. More specifically, it relates to a device of this type which is formed using just a construction having no need for an electrical power source, which reduces costs, which entails no risk of breakdown, and which after the oil stove has been extinguished can straightforwardly be restored to the state prior to operation.

Abstract: A screed assembly for attachment to the boom arm of a mechanical hoe, including a first elongated member, an elongated ground-engaging structural member extending therefrom, a hoe connection interface and a hydraulic boom connection interface on the first elongated member, and a blade-engaging assembly operationally connected to the first elongated member. An elongated blade portion is pivotably connected to the blade-engaging assembly, a first pivot actuator is operationally connected between the first generally elongated portion and to the blade-engaging assembly, and a second pivot actuator operationally connected to the blade-engaging assembly and the elongated blade portion. Energization of the first pivot actuator pivots the blade engaging assembly relative to the first elongated member and energization of the second pivot actuator pivots the blade relative to the blade-engaging assembly.

Abstract: The rotational speed of a pneumatic hand tool is adjusted in real time to maintain a selected speed level irrespective of exterior parameters affecting the performance of the tool. The apparatus is comprised of a rotational speed sensor installed directly on the tool, a digital microprocessor using control algorithms, and a valve to adjust the flow of air to the tool.

Abstract: It is an object of the invention to provide a technique for bringing a center of gravity of a battery-powered power tool closer to a working axis of a tool bit in the battery-powered power tool. The battery-powered power tool performs an operation by movement of a tool bit 119 in an axial direction of the tool bit. The power tool includes a battery 110, a motor 111 that is driven by power supply from the battery 110, a mechanical arrangement 113, 115, 117 that drives the tool bit 119 by rotative power transmitted from the motor 111, and a tool body 103 that houses the motor 111 and the mechanical arrangement 113, 115, 117 and has a front end region in which the tool bit 119 is disposed. A sum of weights of the motor 111 and the battery 110 is smaller than a weight of the mechanical arrangement 113, 115, 117.

Abstract: A composite material, the composite material comprising at least one prepreg, said prepreg comprising at least one polymeric resin and at least one fibrous reinforcement; and conducting particles dispersed in the polymeric resin.

Abstract: Techniques or processes for providing markings on products are disclosed. In one embodiment, the products have housings and the markings are to be provided on sub-surfaces of the housings. For example, a housing for a particular product can include an outer housing surface and the markings can be provided on a sub-surface the outer housing surface yet still be visible from the outside of the housing. Since the markings are beneath the surface of the housing, the markings are durable.

Abstract: An object of the present invention is to provide an elastic signal transmission cable having a length of several centimeters to several meters that has a shape deformation tracking ability and enables high-speed signal transmission. The inventive elastic signal transmission cable has an elasticity of 10% or more and transmission loss of 10 dB/m or less in a relaxed state at 250 MHz, and comprises an elastic cylindrical body having an elasticity of 10% or more and a conductor portion containing at least two conductor wires wound in the same direction around the elastic cylindrical body.

Abstract: An electrical line for the connection of non-stationary electrical loads to a power source is specified which has a line core surrounded by a jacket (8) of insulating material. Four wires (1), stranded together to form one star quad (S), for the transmission of data, and also two wires (2) stranded together to form a pair of wires (A) and used for supplying power are placed in the line core. The star quad (S) and the pair of wires (A) are stranded together as stranding elements for forming the line core and, over the same, a layer (5) of insulating material is placed, over which a braid or a stranded cover layer of copper wires is arranged in a first layer (6) as part of an electrical screen. At least one layer of a fleece material consisting of synthetic material and made electrically conductive is placed over the first layer (6) as second layer (7) of the electrical screen and the fleece material is surrounded by the jacket (8) of insulating material.

Abstract: In an assembly comprising an electrically conducting bar, lower and upper electrically insulating films covering opposed faces of the conducting bar, and an electrically insulating member bonded to the upper insulating film, the insulating member protruding on the exposed face of the insulating film so as to prevent propagation of electric arcs by tracking on said exposed face, the insulating member is bonded to the insulating film with a heat-sealable coating.

Abstract: Disclosed is a heat dissipating substrate, which includes a metal plate, an insulating film formed on the surface of the metal plate, a circuit pattern formed on the insulating film, and a first via formed to pass through at least a part of the metal plate so that the metal plate and the circuit pattern are electrically connected to each other, and also which exhibits superior heat dissipation effects and enables the configuration of a circuit board to be simple due to no need to additionally provide a ground layer and a power layer.

Abstract: Disclosed is a metal structure of a multi-layer substrate, comprising a first metal layer and a dielectric layer. The first metal layer has an embedded base and a main body positioned on the embedded base. The base area of the embedded base is larger than the base area of the main body. After the dielectric layer covers the main body and the embedded base, the dielectric layer is opened at the specific position of the first metal layer for connecting the first metal layer with a second metal layer above the dielectric layer. When the metal structure is employed as a pad or a metal line of the flexible multi-layer substrate according to the present invention, the metal structure cannot easily be delaminated or separated from the contacted dielectric layer. Therefore, a higher reliability for the flexible multi-layer substrate can be achieved.

Abstract: A printed circuit board and a manufacturing method of the same are disclosed. The method includes: preparing a carrier including a primer resin layer formed thereon; forming a circuit pattern on the primer resin layer; stacking the carrier onto an insulating layer such that the circuit pattern is buried in the insulating layer; removing the carrier; forming a via hole in the insulating layer on which the primer resin layer is stacked; and forming a conductive via in the via hole. The conductive via is formed by forming a plating layer in the via hole and on the primer resin layer and removing a portion of the plating layer formed over the primer resin layer.