Abstract: A core assembly for a turbine engine blade includes a generally radially extending trunk interconnected to multiple generally axially extending tabs. The tabs are interconnected by a generally radially extending ligament. Multiple generally axially extending protrusions are interconnected to the ligament opposite the trunk. A mold is configured to define an exterior surface of an airfoil. The core is arranged within the mold and is configured such that the tabs and the ligament break through at the exterior surface.

Abstract: An apparatus for producing elongated rolled products contains a steelmaking station for producing liquid metal having at a first production rate, a rolling mill having a second production rate, and a continuous casting station located between the steelmaking station and the rolling mill. The continuous casting station contains at least two casting lines, each line being operable to produce elongated intermediate products. A first casting line is directly aligned with the rolling mill to feed the rolling mill with casted products, and at least one second casting line not aligned with the rolling mill and not feeding the rolling mill. The apparatus further contains a varying device for varying simultaneously the production rate of the first casting line and the production rate of the at least one second casting line depending on a difference between the steelmaking station production rate and the rolling mill production rate.

Abstract: A heat exchanger usable with a ventilator, the heat exchanger having an improved structure so that air passing through the heat exchanger may be prevented from leaking. The heat exchanger of the general inventive concept includes a heat-exchanging element having a plurality of liners stacked in a uniformly spaced state and a plurality of spacers disposed between the liners to define air passages, and corner guides respectively coupled to corners of the heat-exchanging element. Each of the corner guides includes a guide channel forming a space to receive the corner of the heat-exchanging element so that the corner guides securely come into close contact with the heat-exchanging element, and to minimize a loosening of the corner guide due to an adhesive applied between the heat-exchanging element and the corner guide.

Abstract: There is provided a means for uniformly controlling the in-plane temperature of a semiconductor wafer at high speed in a high heat input etching process. A refrigerant channel structure in a circular shape is formed in a sample stage. Due to a fact that a heat transfer coefficient of a refrigerant is largely changed from a refrigerant supply port to a refrigerant outlet port, the cross sections of the channel structure is structured so as to be increased from a first channel areas towards a second channel areas in order to make the heat transfer coefficient of the refrigerant constant in the refrigerant channel structure. Thereby, the heat transfer coefficient of the refrigerant is prevented from increasing by reducing the flow rate of the refrigerant at a dry degree area where the heat transfer coefficient of the refrigerant is increased.

Abstract: The present invention relates to a heat-dissipating device for an electronic device, comprising a graphite planar body, one or more metal layers, an insulation film and an adhesive. The heat-dissipating device is optionally attached to a heat sink. The method of using the heat-dissipating device to dissipate heat is also disclosed.

Abstract: A method of recovering oil from an oil well and producing steam for injection into an injection well is provided. After recovering an oil-water mixture from the oil well, oil is separated from the mixture to produce an oil product and produced water. In one process, the produced water is directed to an indirect fired steam generator which is powered by an independent boiler or steam generator. As water moves through the indirect fired steam generator, the same is heated to produce a steam-water mixture. The steam-water mixture is directed to the steam separator which separates the steam-water mixture into steam and water. The separated water is directed from the steam separator back to and through the indirect fired steam generator. This separated water is continued to be recycled through the indirect fired steam generator. Steam separated by the steam separator is directed into the injection well.

Abstract: A beamless mechanic-reversing long stroke pumping unit is provided for petroleum production in diverse types of oil fields. Its mechanic-reversing system consists of differentials, brakes, etc. With two differentials assembled together, taper gears inside them perform revolution and rotation, enabling the pumping unit to achieve direction change and speed change mechanically. The stroke length of the pumping unit can reach 8 meters or longer, and the adjustment process is more convenient than most, by merely tuning the position of the proximity switches. Abrasion of the chains typically caused due to resetting of a motor frequently during operation, is eliminated in this pumping unit. The pumping unit has more reliable operation performance, more convenient maintenance, lower costs, better energy saving effects, and can be applied in land oil fields, offshore oil fields, oil wells with low permeability, etc.

Abstract: A wellbore assembly includes a housing member, an outer wellbore member, and a second wellbore member, with an outer sensor located in the annulus between the outer wellbore member and the second wellbore member. The outer sensor can sense a condition of the annulus, such as pressure or temperature, and transmit data through a solid portion of the sidewall of the outer wellbore member to a signal receiver located on the housing member. In one embodiment, the signal receiver can transmit an electromagnetic field to inductively charge a power supply on the outer sensor.

Abstract: A method of drilling and cleaning a wellbore while rotating the drill string after full drilling depth is reached without running the drill string out the bore to install a clean up work string is disclosed wherein a drill string having a drill bit at one end includes at least one near bit selectively activatable cleaning tool (10, 11, 12) mounted within the length of the drill string, said cleaning tool having a cleaning member (18) adapted to be moved from a close fitting stowed configuration within a recess (17) to a deployed configuration upon a body of the tool, wherein the cleaning member has magnets (19, 43) for use in positioning thereof, and compact tools for scraping, milling and brushing with improved resistance to ingress of detritus, debris and formation particulates are disclosed.

Abstract: A method of forming multiple inclusions into a subterranean formation can include initiating the inclusions into the formation, the inclusions extending outwardly in respective multiple azimuthal orientations from a casing section, and flowing fluid into each of the inclusions individually, thereby extending the inclusions into the formation one at a time. A system for initiating inclusions outwardly into a subterranean formation from a wellbore can include a casing section having multiple flow channels therein, each of the flow channels being in communication with a respective one of multiple openings formed between adjacent pairs of circumferentially extendable longitudinally extending portions of the casing section. Another system can include a casing section, and an injection tool which engages the casing section and selectively directs fluid into each of the inclusions individually, whereby the inclusions are extended into the formation one at a time.

Abstract: An electronic transmitter assembly used in directional boring, the housing of the assembly being configured for receiving a beacon. The housing and cover of the assembly are configured to provide transmission windows along each side of the cover rather than in the center of the cover. The beacon contained within the housing is configured to have a forward isolator on one end and a rear isolator on the other end to isolate the beacon from shock during boring operations.

Abstract: Gellable treatment fluids containing a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, acrylic acid monomer units can be used in various subterranean operations where it is necessary for the treatment fluid to remain in a gelled state for extended periods of time at high formation temperatures. Methods for treating a subterranean formation can comprise providing a treatment fluid comprising an aqueous carrier fluid, a crosslinking agent, a gel stabilizer, and a terpolymer that comprises 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, and acrylic acid monomer units, or any salt thereof; introducing the treatment fluid into a subterranean formation; allowing the treatment fluid to form a gel in the subterranean formation; and breaking the gel after it has been in the subterranean formation for at least about one day.

Abstract: In an embodiment, a method is provided including the steps of: (A) introducing a well fluid comprising an electron-poor orthoester into a well; and (B) allowing or causing the electron-poor orthoester to hydrolyze to produce an acid and an alcohol in the well. In another embodiment, a water-based well fluid is provided, the well fluid including: (A) a continuous aqueous phase having a pH of a least 6; (B) an electron-poor orthoester; and (C) a viscosity-increasing agent.

Abstract: A method for altering flow conditions in a porous media containing hydrocarbons includes the steps of preparing a mixture of a surfactant, a co-surfactant and a carrier fluid; transporting the mixture to the porous media; and holding the mixture in the porous media in the presence of water for a period of time sufficient to form a water film on the surfaces of the porous media.

Abstract: A device with an overshot including a first part with an elongated body adapted to be connected to a hoisting line in one end and with a tubular opening arranged/designed to receive a spearhead in the other end. The overshot further includes a second part with a scissor like mechanism including two lifting dogs arranged to pivot around a common pivot pin. The lifting dogs are connected via a biasing unit and the elongated body includes a central, axially extending slot. The scissor like mechanism is arranged with the common pivot pin sliding in the slot between a first end position where the biasing unit is arranged to close the lifting dogs such that a spearhead received in the tubular opening is locked and a second end position where an opener including an opening pin is arranged to force the lifting dogs open against the force of the biasing unit, such that a spearhead received in the tubular opening is released.

Abstract: A system and method of recovering hydrocarbons located at or above a sea floor of a sea are disclosed. The method includes heating a working fluid at a heater and delivering the working fluid downward into the sea through a first string of a riser to a heat exchanger. The riser has a plurality of strings in a concentric arrangement. The heat exchanger transfers thermal energy from the working fluid to at least hydrocarbons to enable recovery of the hydrocarbons through a second string of the riser. The working fluid returns from the heat exchanger to the heater through a third string of the riser.

Abstract: A grease delivery system for delivering grease to a location is provided. The grease delivery system comprises: a first grease reservoir having a first grease output and a first output device configured to output grease from the first grease reservoir; a second grease reservoir having a second grease output and a second output device configured to output grease from the second grease reservoir; and a common grease output for delivering grease to the location, wherein the common grease output is fluidly connected to the first and second grease outputs, wherein the system is configured to simultaneously output grease from the first and second grease reservoirs to the common grease output.

Abstract: The present invention relates to an accessory device which comprises a damping sleeve (100), which is coupled to a bend stiffener (4), capable of acting in the anchoring operation of a riser (3) so as to eliminate the need for fuse cables and safety straps, the need to use a team of divers, and to guarantee the implementation of the operation in all sea conditions.

Abstract: A subsea wellhead assembly having a tubing hanger set in a tubing hanger spool and a ring with axial passages set in an upper end of the tubing hanger. The wellhead assembly includes a production tree that lands on the tubing hanger spool. Tubing extends from the axial passages in the ring through axial bores provided in a sidewall of the tubing hanger. When landed, a lower end of the production tree engages an upper surface of the ring causing the ring to rotate and align its axial passages with axial passages in the production tree. The respective lower and upper surfaces of the tree and ring are strategically castellated to orient the passages.

Abstract: An apparatus and method for providing a controllable supply of fluid, and optionally power and/or communication signals, to a subsea equipment are provided. The fluid may be a water-based fluid, oil-based fluid, or chemicals. The apparatus includes a reservoir disposed on a seabed for storing a supply of fluid for delivery to the subsea well equipment. A subsea pumping device is configured to receive the fluid from the reservoir, pressurize the fluid, and deliver the pressurized fluid to an accumulator of a hydraulic power unit disposed on the seabed. The hydraulic power unit can store the pressurized fluid and control an output of the pressurized fluid to the subsea well equipment, thereby providing a subsea fluid source for the subsea equipment.

Abstract: Provided is a damping apparatus for a moonpool, which has a simple driving mechanism. The damping apparatus includes one or more damping plates which cover a moonpool of a hull entirely or partially. The damping plates are pivotally hinged to a sidewall of the moonpool, and one or more conveying units are disposed above the moonpool to convey drilling equipment. Driving wires are coupled between the conveying units and the damping plates, and the conveying force of the conveying units is transferred through the driving wires to the damping plates. Thus, the damping plates are pivoted to open and close the moonpool entirely or partially.

Abstract: A method of abandoning a borehole includes, running a tool into the borehole, cutting a casing with a first portion of the tool, reaming the borehole in an area where the casing has been cut with a second portion of the tool, disconnecting a drillstring from the tool, and cementing the borehole through the drillstring.

Abstract: A downhole well pumping assembly has a shroud with an upper section and a lower section sealed from one another. A submersible pump and a gas separator are housed within the upper section of the shroud. The gas separator has a liquid outlet in fluid communication with an intake of the pump, and a gas outlet in fluid communication with the gas outlet in the shroud. A motor is housed within the lower section of the shroud, the motor being coupled to the gas separator for rotating the gas separator and the pump. A well fluid lower inlet is in the shroud below the motor and a well fluid lower outlet is in the shroud above the motor.

Abstract: Systems and methods for removing fluids from a subterranean well. An example embodiment includes a system having a well casing surrounding at least one inner tubing string, where the inner tubing string has a distal section and a proximal section, an apparatus for removing a first fluid within the distal section of the inner tubing string, and an apparatus for removing a second fluid within the proximal section of the inner tubing string.

Abstract: A multi-barrier system includes a first valve and a second valve that are both in fluidic communication with a lower completion. The first valve and the second valve are positioned proximate an uphole extent of the lower completion, and a member in operable communication with the first valve and the second valve. The system is configured such that both the first valve and the second valve are open when the member is in a first position, the first valve is closed and the second valve is open when the member in a second position, the first valve is open and the second valve is closed when the member is in a third position, and the first valve and the second valve are both closed when the member is in a fourth position. The first valve and the second valve are closable in response to retrieval of an upper completion.

Abstract: A method of implementing a substitute for a pump-off controller in a downhole production string, the method including locating a pump and a valve in the production string wherein capabilities include the pump pumping a reservoir product through the valve, the valve transitioning to a bypass mode, and the valve interrupting a reservoir product flow.

Abstract: The present disclosure provides a drilling and tripping equipment package and control scheme and methods using two or more systems that operate simultaneously and continuously in a synchronized manner such that the feeding of tubulars into or out of a well bore is achieved with continuous or near continuous movement, without the need for periodic interruptions. The drilling and tripping equipment package and control scheme is also able to rotate the tubulars in the well bore with continuous speed and torque sufficient for both drilling and back-reaming operations. The drilling and tripping equipment package and control scheme is additionally able to circulate drilling fluid into the internal bore of the tubulars with sufficient pressure and flow to facilitate both drilling and back-reaming operations, with minimal interruption to circulation.

Abstract: A system of couplings and method of use of the couplings to locate a downhole tool connected to coiled tubing, such as a bottom hole assembly, within a selected segment of a casing string. The selected segment of casing may be a ported collar or ported housing that permits the treatment and/or stimulation of the adjacent well formation. The system of couplings may be two, three, or four couplings spaced apart at predetermined lengths. The predetermined lengths may be shorter than typical lengths of casing segments. The distance between the first and second coupling may be substantially identical to the distance between the third and fourth coupling. The use of distances between the couplings that are shorter than the length of conventional casing segments may provide surface indicators as to the location of the bottom hole assembly with a higher confidence than relying on a traditional tally sheet.

Abstract: A receptacle sub that increases the venting flowrate during retrieval of a running tool. The sub includes a sleeve with a bypass port in a central bore defined by a tubular body. The sleeve is selectively moveable from an upper position to a lower position. A seal on the sleeve seals the sleeve to the bore while a retainer holds the sleeve in the upper position. A bypass passage in the body is in fluid communication with the bypass port. A drop member lands on the sleeve, blocking downward flow through the sleeve and actuating a hydraulic function. The drop member receives a fluid pressure greater than the hydraulic function fluid pressure, releasing the retainer to move the sleeve to the lower position. This allows fluid communication from above the central bore through the bypass passage and through the bypass ports of the sleeve below the drop member.

Abstract: Embodiments of the disclosure pertain to a mandrel for a downhole tool that may include a body having a proximate end with a first outer diameter and a distal end with a second outer diameter; a first set of threads disposed on the distal end; and a transition region formed on the body between the proximate end and the distal end. In aspects, the mandrel may be made from filament wound composite material.

Abstract: Sealing devices for use in a wellbore to seal a leak path through an inner wall surface of the wellbore comprise a mandrel, an expandable element, and a shape deforming sealing element. Expansion or inflation of the expandable element moves the shape deforming sealing element from its run-in shape to its set shape. A stimulus, such as a change in temperature, acts upon the shape deforming sealing element facilitating the shape deforming sealing element changing shape. Removal of the stimulus causes the shape deforming sealing element to remain in the set shape. Thereafter, the mandrel and expandable element can be removed to leave only the shape deforming sealing element within the wellbore to seal the leak path.

Abstract: A building sprinkler system includes a pump having an input for receiving water and an output that is connected to selectively feed a plurality of sprinkler heads. A driver is operatively connected to the pump for driving the pump. A cooling arrangement is provided for cooling the pump during pump testing operations. The cooling arrangement includes: a heat exchanger with a primary loop formed by a flow path for delivering water from the output of the pump through the heat exchanger and back to the input of the pump, and a secondary loop formed by a flow path for delivering coolant from the heat exchanger through a radiator and back to the heat exchanger so that heat is transferred from the water to the coolant via the heat exchanger and from the coolant to air via the radiator.

Abstract: In an embodiment, a method of accommodating a hazard mitigation system in a system including one or more fluid guides is described. The method includes forming a one-way valve in at least one of the one or more fluid guides. The one-way valve may be configured to substantially prevent the egress of fluid from the at least one of the one or more fluid guides through the one-way valve. The one-way valve may be further configured to allow ingress of a neutralizing agent supplied by a source outside the at least one of the one or more fluid guides through the one-way valve.

Abstract: The present invention relates to automatically activated fire suppression system providing a system that releases fire suppressant foam, or aqueous film forming material (“AFFF”) over a flammable material contained within a storage tank or gas tank, when a heat sensor comprised of glass, plexi-glass or plastic, is compromised (i.e. melted, or broken) by temperatures in the container indicating that the flammable material is are at or near combustion levels.

Abstract: In one embodiment, a turf aerator includes a frame having wheels, a variable displacement pump, an engine for driving at least one of the wheels and driving the pump, a tine assembly supported by the frame and being movable between lowered and raised configurations, and a swash-plate-adjustment linkage extending from the tine assembly to the pump. The tine assembly includes: a base; a hydraulic motor in hydraulic communication with the pump; rotatable cranks powered by the hydraulic motor; a downwardly-extending arm rotatably coupled to each crank; a tine extending downwardly from each downwardly-extending arm; springs operatively anchored to the base; and a guide arm extending between each downwardly-extending arm and a respective spring. The swash-plate-adjustment linkage automatically adjusts the pump with movement of the tine assembly relative to the frame to provide output to the hydraulic motor substantially only when the tine assembly is at the lowered configuration.

Abstract: A cleat anchoring system is disclosed for anchoring a mobile equipment rig using the dead weight of the mobile equipment rig to assist with anchoring. In one embodiment, an anchoring method generally comprises providing front and rear cleat pad assemblies. The rear cleat pad assembly is laid on a ground surface at a first desired position so that cleats on the rear cleat assembly engage the ground surface. The mobile equipment rig is moved to stand on the rear cleat pad assembly. The front cleat pad assembly is then laid on the ground surface at a second desired position so that cleats on the front cleat assembly engage the ground surface. A thrust plate associated with the rig is positioned to stand on the front cleat assembly. The front and rear cleat pad assembles are then rigidly connected.

Abstract: A driver 10 for a fence post is disclosed. The driver comprises an elongate hollow body 12 having an open in-use lower end 14. A guide 16 is removably locatable at the lower end.

Abstract: A ground piercing tool as according to the invention has a front head assembly mounted on a bit shaft. A mid-portion of the bit shaft is mounted between front and rear chambers. Compressed fluid is supplied to the front chamber to form a gas spring that prevents the bit shaft from impacting against a front stop when it receives a blow from the striker. A valve is provided that includes a passage that permits communication between the front chamber and the rear chamber when the bit shaft is in a forwardmost position wherein it contacts the front stop. The valve permits compressed air to pass from the front chamber to the rear chamber, negating the gas spring when the bit shaft is in the forwardmost position.

Abstract: A portable pneumatic power wrench has a housing with a handle, a motor, a pressure air inlet passage, and an outlet passage for ducting exhaust air from the motor out of the housing. An outlet unit is connected to the outlet passage and has a first outlet opening section forming a main exhaust air flow path, a second outlet opening section forming an additional exhaust air flow path, and a manually operable valve arranged to control the additional exhaust air flow path by opening or closing the second outlet opening section. The total outlet flow area of the main exhaust air flow path and the additional exhaust air flow path gives an augmented torque output of the power wrench.

Abstract: A pneumatic hammer mechanism is disclosed. The hammer mechanism includes: a flying mass; an impact surface which limits a movement of the flying mass along the impact axis in the impact direction; an exciting piston which limits a movement of the flying mass opposite from the impact direction; a pneumatic chamber between the flying mass and exciting piston; and a drive for periodically moving the exciting piston with a stroke along the impact axis.

Abstract: A pneumatic percussion tool (1) for demolition and/or breaking work is connectable to an insert tool (2). The percussion tool has a percussion cylinder (4), a piston (5), arranged to travel in the bore of the cylinder (4), a buffer (8), and a valve unit (6), acting on the piston (5) during operation to produce a repetitive reciprocating motion in the bore of the cylinder (4) by alternately applying pressure to the upper or lower end of the cylinder (4) while the insert tool (2) is influenced by the stroke of the piston (5) at its dead center at the lower end of the cylinder (4). The percussion tool prevents the reciprocating motion of the piston when the buffer (8) reaches a predetermined degree of wear and the tool is not pressed against any object being worked.

Abstract: A hand-held power tool includes a gearbox that is coupled to a spindle for receiving a tool, the spindle being mounted via a tool-side bearing and a motor-side bearing, and the motor-side bearing being braced radially against a component of the gearbox.

Abstract: A tool for crushing coke using high-pressure water is attached to a drilling rod through which water flows at high pressure. The tool further a control device for directing the water into either drilling nozzles or cutting nozzles depending on the rotational position of the control device. A switching element driven by water pressure engages the control device to cause the control the device to rotate from one rotational position to another rotational position, thereby changing the tool from cutting to drilling or vice versa.

Abstract: Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbore. In one aspect, one or more pressure control apparatus are used to maintain desired pressure within the wellbore while drilling the wellbore. In another aspect, pressure is dynamically controlled while drilling using foam to maintain a substantially homogenous foam flow regime within the wellbore annulus for carrying cuttings from the wellbore.

Abstract: Implementations of the present invention include a drill rod guide configured to align a first drill rod and a second drill rod. The drill rod guide includes a cylindrical section and a tapered or frusta-conical section. The cylindrical section is sized and configured to concentrically surround a first drill rod. The tapered or frusta-conical section is sized and configured to guide a second drill rod into the cylindrical section and into alignment with the first drill rod. The drill rod guide may include first and second guide members that form symmetrical halves of the drill rod guide. The first and second guide members may be connected to first and second jaws of the clamp. The guide may include a window configured to allow a user to visually confirm that the first and second drill rods are aligned.

Abstract: This specification discloses a drilling string, including drill pipe, drill collar, or sub for use in drilling operations, comprising at least one upset that has an outer surface having a plurality of grooves, wherein at least one of the grooves comprise a curved leading edge that is generally convex, a leading side, a trough having a generally convex curvature, a trailing side that extends in a substantially radial direction, and a trailing edge. The groove configuration results in improved transport of drilling fluids and cuttings and is especially beneficial for use in directional drilling operations.

Abstract: The roller cone is retained to the head with axial play taken out of the bearings with a tension rod that is tensioned from the rear of the head and away from the nose bearing region of the head allowing greater resistance to loading in the region of the nose bearing and a reduction in critical stresses. The tension rod has a flat and is oriented for tightening so that the flat faces grease passages to allow grease to gain access to the bearings through the bore for the tension rod and otherwise fill the bore so the tension rod actively supports loading in the head bearing. The nose bearing can be separately supported to the cone directly with a retainer threaded to the cone or a spacer between the bearings can be used so that tensioning of the rod takes out the axial play in both bearings with force transmitted to a retainer at the back of the cone.

Abstract: A hub arrangement has hub parts which are rotatable relative to one another. Each hub is assigned a braking device, which is actuatable jointly with the braking device of the respective other hub.

Abstract: A vehicle is retrofitted with a secondary power generation system having a Mechanical Power Transfer System (MPTS) and an electrical generator. The MPTS transfers power from an engine crankshaft within an engine compartment to a generator shaft of the electrical generator disposed outside of the engine compartment. Retrofitting the vehicle with the MPTS allows the electrical generator to be attached to a portion of a chassis of the vehicle that is outside of the engine compartment. Attachment of the electrical generator outside the engine compartment avoids the tight space constraints and harsh operating conditions (high operating temperatures) within the engine compartment. Thus a larger, more powerful generator that requires less maintenance is realized.

Abstract: A vehicle comprises a plurality of motors operatively connected with one another. The vehicle is powered with the plurality of motors individually and in combination with one another to primarily operate each of the plurality of motors within a predetermine efficiency range.