etho

Methods and apparatus for applying periodic voltage using direct current

Methods and apparatus for applying pulsed DC power to a plasma processing chamber are disclosed. In some implementations, frequency of the applied power is varied to achieve desired processing effects such as deposition rate, arc rate, and film characteristics. In addition, a method and apparatus are disclosed that utilize a relatively high potential during a reverse-potential portion of a particular cycle to mitigate possible nodule formation on the target. The relative durations of the reverse-potential portion, a sputtering portion, and a recovery portion of the cycle are adjustable to effectuate desired processing effects.




etho

Method for producing a transparent and conductive metal oxide layer by highly ionized pulsed magnetron sputtering

A method for producing a transparent and conductive metal oxide layer on a substrate, includes atomizing at least one component of the metal oxide layer by highly ionized, high power pulsed magnetron sputtering to condense on the substrate. The pulses of the magnetron have a peak power density of more than 1.5 kW/cm2, the pulses of the magnetron have a duration of ≦200 μs, and the average increase in current density during ignition of the plasma within an interval, which is ≦0.025 ms, is at least 106 A/(ms cm2).




etho

Electrode strip and sensor strip and manufacture method thereof and system thereof

The present disclosure relates to an electrode strip, a sensor strip, a system thereof and a manufacturing method thereof. The sensor strip includes a first reactive film, a second reactive film and a vent hole. The first reactive film includes a substrate, a first electrode layer and a first insulation layer. The first end of the first insulation layer is concaved to a first depth to form a first reactive area. The second reactive film includes a second electrode layer and a second insulation layer. The first end of the second insulation layer is concaved to a second depth to form a second reactive area. The vent hole penetrates the second insulation layer, the second electrode layer and the first insulation layer so as to connect the first reactive area and the second reactive area.




etho

Gas sensor and method of manufacturing thereof

In a gas sensor sensing a specific gas component contained in gas to be measured, oxygen ion conductive solid electrolyte is used in a sensing element for sensing the specific gas component. A terminal unit is used, which comprises a pair of insulators, each having an inner side surface, disposed to pinch and hold the base end portion of the sensing element on the pair of electrode-mounted surfaces of the sensing element. The terminal unit comprises two pairs of metal terminals and a spring member. The metal terminals electrically contact electrode pads of the sensing element, pair by pair, respectively, and are disposed on the inner side surfaces of the insulators. The spring members press the pair of insulators at one or more positions of electrode-mounted surfaces of the sensing element in a width direction so that the insulators are pressed to be opposed to each other.




etho

Device and method for manufacturing the same

The present invention provides a device that decreases deformation during manufacturing of the device, provides a firm joint without use of an adhesive, and allows chemical modification of a channel during manufacturing of the device. The device includes two joined substrates, and a concavity is formed on at least one of the opposing surfaces of the two substrates so as to make a channel, where the two substrates are joined together by a covalent bond via a crosslinking agent (A), and the crosslinking agent (A) is exposed on an inner wall surface of the channel.




etho

Working electrode, method for fabricating the same and dye-sensitized solar cell containing the same

The present invention provides a method for fabricating a working electrode. The method comprises the following steps: providing a photoelectrode, which comprises a conductive substrate with a semiconductor material; providing a dye solution, which comprises a dye dissolved in a solvent; and applying a voltage for conducting an electrophoresis to adsorb said dye onto a surface of said semiconductor material. The method of present invention makes the dye adsorbed fast to a surface of a semiconductor material by electrophoresis, and therefore, significantly reduces the time for fabricating a dye-sensitized solar cell.




etho

Metal material with a bismuth film attached and method for producing same, surface treatment liquid used in said method, and cationic electrodeposition coated metal material and method for producing same

A metal material is provided with a bismuth coating which enables the subsequent coating to be accomplished at a high throwing power, and has excellent corrosion resistance, coating adhesion and is able to be produced with reduced damage to the environment. The metal material has a surface and a bismuth-containing layer deposited on at least a part of the surface of the metal material, wherein the percentage of bismuth atoms in the number of atoms in the surface layer of the metal material with a bismuth coating is at least 10%.




etho

Method and apparatus for manipulating single cells and small aggregates thereof

A well, in particular an open well (14) with an upper end having a vertical axis (101), for containing a liquid and particles contained within said liquid, characterized by comprising at least two manipulation electrodes (1, 2, 3, 31, 32, 36, 17, 40, 41) able to be powered by electrical voltages, in particular alternating electrical voltages, so as to manoeuvre particles within the well by means of the dielectrophoretic effect. A platform comprising a plurality of wells as described above and a method for using said well.




etho

Electrolytic systems and methods for making metal halides and refining metals

Disclosed are electrochemical cells and methods for producing a halide of a non-alkali metal and for electrorefining the halide. The systems typically involve an electrochemical cell having a cathode structure configured for dissolving a hydrogen halide that forms the halide into a molten salt of the halogen and an alkali metal. Typically a direct current voltage is applied across the cathode and an anode that is fabricated with the non-alkali metal such that the halide of the non-alkali metal is formed adjacent the anode. Electrorefining cells and methods involve applying a direct current voltage across the anode where the halide of the non-alkali metal is formed and the cathode where the non-alkali metal is electro-deposited. In a representative embodiment the halogen is chlorine, the alkali metal is lithium and the non-alkali metal is uranium.




etho

Implement and method for preparing and maintaining dirt arena footing

An implement is disclosed for smoothing grounds that include at least a compact base having a top surface and a lesser compact footing on top of the base. The implement includes a frame having a front portion, a central portion, a rear portion, and a width. Wheels are mounted for rotation directly to the frame, and tools are carried by the frame for engagement with the ground. The tools include a specially shaped cleaving blade connected to the rear portion of the frame by a tool support, which securely connects the cleaving blade at predetermined heights. The blade has a front shaving edge and a rear compressing edge. The blade extends straight across the width of the frame so as to maximize the drag displaced on the frame during use of the blade. Arrangement of the wheels directly on the frame provides optimal stabilization of the frame during operation of the blade.




etho

System and method for optimizing a cut location

A system for determining a cut location at a work surface includes a position sensor and a controller. The controller stores a final design plane of the work surface and determines an actual profile of the work surface. A plurality of target profiles extending along a path are determined, each corresponding to a cut location. The target profiles are based at least in part upon the cut location, a loading profile, slot parameters, and the actual profile of the work surface. The controller is further configured to determine a lowest cost target profile and the lowest cost target profile defines an optimized cut location. A method is also provided.




etho

Method and apparatus to collect cores from golf green

A method to collect soil cores from a green comprises the steps of providing a soil core collector, extracting soil cores from a green, allowing the cores to dry for at least fifteen minutes, and utilizing the core collector to gather the cores from the green.




etho

Method and system for calculating and displaying work tool orientation and machine using same

A machine includes a plurality of ground engaging elements and an operator control station supported on a frame. A work tool is pivotably attached to the frame using a lift arm assembly and a tilt linkage. At least one device measures a quantity associated with at least one of the lift arm assembly, the tilt linkage, and the work tool. An electronic controller, in communication with an operator display and the at least one device. The electronic controller is configured to store an operator selected orientation of the work tool, calculate a current orientation of the work tool based on the quantity, and calculate a deviation of the current orientation from the operator selected orientation. A visual representation of the deviation is displayed on the operator display.




etho

Systems and methods for treating a ground surface

Some embodiments of a ground surface treatment system can include a flexible roller system having one or more of rollers arranged in a side-by-side position and include a flexible axle member extending through each row of rollers.




etho

System and method for controlling a rotation angle of a motor grader blade

The disclosure describes, in one aspect, a system and method for controlling a rotation angle of a blade of a motor grader having a front frame operatively coupled to a rear frame at a point defining an articulation angle between the front and rear frames. The control system includes at least one sensor operatively associated with the blade, at least one sensor operatively associated with a wheel, at least one sensor operatively associated with at least one of the front frame or the rear frame, and a controller operatively coupled to the at least one sensors. The controller is adapted to determine a current position of the blade, determine a wheel steering angle, determine an articulation angle, and control the rotation angle of the blade based in part on the wheel steering angle and the articulation angle.




etho

Device for improved clean up of holes, and method of using same

A cleanup device having a first board having a first edge, a second board having a first edge, a first hinge attached to the first edge of the first board and the first edge of the second board, an aperture defined by a portion of the first edge of the first board and a portion of the first edge of the second board, a first plate slidably attached to the first board, wherein the first plate is movable from a first, open position where the aperture is open to a second, closed position where the first plate extends over at least a portion of the aperture, and wherein a top surface of the first board is movable towards a top surface of the second board to form a V-shaped surface for directing dirt or soil off of the first board and the second board.




etho

Swing control apparatus and method of construction machinery

A swing control apparatus and a swing control method for a construction machine are provided. The swing control apparatus includes a start position estimation unit, a stop target position calculation unit, and a swing motor position control unit. Even if an operator releases a lever or commands a stop at different times, an upper swing structure of the construction machine (for example, excavator) can be stopped within a predetermined range, and thus the inconvenience caused by an additional driving operation, which is required as the stop position differs according to the time point where the stop command starts, can be solved.




etho

Apparatus and methods for facilitating the removal of existing turf and installing new turf

A turf cutter device, an infill extractor/collector device, and a turf wind-up device are used to facilitate the cost-effective removal of an infilled synthetic turf and the subsequent installation of a new turf at the same site, with minimal subsurface disruption. An infill extractor/collector device mounted on a motorized vehicle moves a relatively narrow strip of filled artificial turf from the surface, in front of the vehicle, and directs the strip to an infill removal station. The infill removal station inverts the strip and redirects the strip back toward the front of the vehicle, after agitating the strip to extract the infill. After redirecting the strip toward the front of the vehicle, the vehicle drives over the unfilled strip. Meanwhile, the extractor/collector device moves the extracted infill rearwardly to a bag located in a trailer. The turf cutter device is used prior to infill extraction, while the turf wind up device may be used before or after infill extraction, depending on whether infill extraction takes place at the field or at a remote site, respectively.




etho

System and method for optimizing a cut location

A system for determining a cut location at a work surface includes a position sensor and a controller. The controller stores a desired operating parameter and a final design plane of the work surface and determines an actual profile of the work surface. The controller determines a plurality of target profiles corresponding to different cut locations. The target profiles are based at least in part upon the cut location, a loading profile, slot parameters, and the actual profile of the work surface. The controller further determines an optimized target profile relative to the desired operating parameter and the optimized target profile defines an optimized cut location.




etho

Brake control system and method for motor vehicles

A brake control system and method for motor vehicles is provided with an electronic control unit, by which, when the motor vehicle is stationary, a parking brake function can be activated manually or automatically. Its deactivation occurs upon reaching a predefined release condition. In the presence of a release condition the brake pressure, which was built up for the parking brake function, is released in a time offset manner at least in relation to the axles of the vehicle by way of the control unit.




etho

TFT array substrate, manufacturing method of the same and display device

According to embodiments of the invention, a TFT array substrate, a manufacturing method of the TFT array substrate and a display device are provided. The method comprises: depositing a metal film on a substrate, and forming a gate electrode and a gate line; forming a gate insulating layer and a passivation layer on the substrate; depositing a transparent conductive layer, a first source/drain metal layer and a first ohmic contact layer, and forming a drain electrode, a pixel electrode, a data line, and a first ohmic contact layer pattern provided on the drain electrode; and depositing a semiconductor layer, a second ohmic contact layer and a second source/drain metal layer, and forming a source electrode, a second ohmic contact layer pattern provided below the source electrode, and a semiconductor channel between the source electrode and the drain electrode.




etho

Organic light emitting display device and method for fabricating the same

An organic light emitting display device includes a light shield layer formed on a substrate and a buffer layer formed on an entire surface of the substrate, an oxide semiconductor layer and first electrode formed on the buffer layer, a gate insulation film and gate electrode formed on the oxide semiconductor layer while being deposited to expose both edges of the oxide semiconductor layer, an interlayer insulation film formed to expose both the exposed edges of the oxide semiconductor layer and the first electrode, source and drain electrodes connected with one edge and the other edge of the oxide semiconductor layer, respectively, and a protective film formed to cover the source and drain electrodes while exposing a region of the first electrode so as to define a luminescent region and a non-luminescent region.




etho

OLED display having organic and inorganic encapsulation layers, and manufacturing method thereof

An organic light emitting diode (OLED) display a includes: a substrate; an organic light emitting element on the substrate and including a first electrode, a light emission layer, and a second electrode; and an encapsulation layer on the substrate while covering the organic light emitting element. The encapsulation layer includes an organic layer and an inorganic layer. A mixed area, where organic materials forming the organic layer and inorganic materials forming the inorganic layer co-exist along a plane direction of the encapsulation layer, is formed at the boundary between the organic layer and the inorganic layer.




etho

Semiconductor device and method for manufacturing the same

An object is to manufacture a semiconductor device with high reliability by providing the semiconductor device including an oxide semiconductor with stable electric characteristics. In a transistor including an oxide semiconductor layer, a gallium oxide film is used for a gate insulating layer and made in contact with an oxide semiconductor layer. Further, gallium oxide films are provided so as to sandwich the oxide semiconductor layer, whereby reliability is increased. Furthermore, the gate insulating layer may have a stacked structure of a gallium oxide film and a hafnium oxide film.




etho

Semiconductor device, semiconductor wafer and manufacturing method of semiconductor device

A semiconductor device includes wiring layers formed over a semiconductor wafer, a via-layer between the wiring layers, conductive films in the wiring layers, and a via-plug in the via-layer connecting the conductive films of the wiring layers above and below, a scribe region at an outer periphery of a chip region along an edge of the semiconductor substrate and including a pad region in the vicinity of the edge, the pad region overlapping the conductive films of the plurality of wiring layers in the plan view, the plurality of wiring layers including first second wiring layers, the conductive film of the first wiring layer includes a first conductive pattern formed over an entire surface of said pad region in a plan view, and the conductive film of the second wiring layer includes a second conductive pattern formed in a part of the pad region in a plan view.




etho

Semiconductor devices with heterojunction barrier regions and methods of fabricating same

An electronic device includes a silicon carbide layer including an n-type drift region therein, a contact forming a junction, such as a Schottky junction, with the drift region, and a p-type junction barrier region on the silicon carbide layer. The p-type junction barrier region includes a p-type polysilicon region forming a P-N heterojunction with the drift region, and the p-type junction barrier region is electrically connected to the contact. Related methods are also disclosed.




etho

Semiconductor device and method for manufacturing the same

An object is to provide a semiconductor device including an oxide semiconductor film, which has stable electrical characteristics and high reliability. A stack of first and second material films is formed by forming the first material film (a film having a hexagonal crystal structure) having a thickness of 1 nm to 10 nm over an insulating surface and forming the second material film having a hexagonal crystal structure (a crystalline oxide semiconductor film) using the first material film as a nucleus. As the first material film, a material film having a wurtzite crystal structure (e.g., gallium nitride or aluminum nitride) or a material film having a corundum crystal structure (α-Al2O3, α-Ga2O3, In2O3, Ti2O3, V2O3, Cr2O3, or α-Fe2O3) is used.




etho

Semiconductor device and method of manufacturing semiconductor device

A semiconductor device, includes a semiconductor substrate, a first interconnect layer formed over the semiconductor substrate, a gate electrode formed in the first interconnect layer, a gate insulating film formed over the gate electrode, a second interconnect layer formed over the gate insulating film, an oxide semiconductor layer formed in the second interconnect layer, and a via formed in the second interconnect layer and connected to the oxide semiconductor layer. The gate electrode, the gate insulating film and the oxide semiconductor layer overlap in a plan view.




etho

Semiconductor devices including a stressor in a recess and methods of forming the same

Semiconductor devices including a stressor in a recess and methods of forming the semiconductor devices are provided. The methods may include forming a trench in an active region and the trench may include a notched portion of the active region. The methods may also include forming an embedded stressor in the trench. The embedded stressor may include a lower semiconductor layer and an upper semiconductor layer, which has a width narrower than a width of the lower semiconductor layer. A side of the upper semiconductor layer may not be aligned with a side of the lower semiconductor layer and an uppermost surface of the upper semiconductor layer may be higher than an uppermost surface of the active region.




etho

Semiconductor device and method for manufacturing the same

It is an object to manufacture a highly reliable semiconductor device including a thin film transistor whose electric characteristics are stable. An insulating layer which covers an oxide semiconductor layer of the thin film transistor contains a boron element or an aluminum element. The insulating layer containing a boron element or an aluminum element is formed by a sputtering method using a silicon target or a silicon oxide target containing a boron element or an aluminum element. Alternatively, an insulating layer containing an antimony (Sb) element or a phosphorus (P) element instead of a boron element covers the oxide semiconductor layer of the thin film transistor.




etho

Semiconductor device and manufacturing method thereof

A semiconductor device which includes a thin film transistor having an oxide semiconductor layer and excellent electrical characteristics is provided. Further, a method for manufacturing a semiconductor device in which plural kinds of thin film transistors of different structures are formed over one substrate to form plural kinds of circuits and in which the number of steps is not greatly increased is provided. After a metal thin film is formed over an insulating surface, an oxide semiconductor layer is formed thereover. Then, oxidation treatment such as heat treatment is performed to oxidize the metal thin film partly or entirely. Further, structures of thin film transistors are different between a circuit in which emphasis is placed on the speed of operation, such as a logic circuit, and a matrix circuit.




etho

Semiconductor device and manufacturing method thereof

A semiconductor film having an impurity region to which at least an n-type or p-type impurity is added and a wiring are provided. The wiring includes a diffusion prevention film containing a conductive metal oxide, and a low resistance conductive film over the diffusion prevention film. In a contact portion between the wiring and the semiconductor film, the diffusion prevention film and the impurity region are in contact with each other. The diffusion prevention film is framed in such a manner that a conductive film is exposed to plasma generated from a mixed gas of an oxidizing gas and a halogen-based gas to form an oxide of a metal material contained in the conductive film, the conductive film in which the oxide of the metal material is formed is exposed to an atmosphere containing water to be fluidized, and the fluidized conductive film is solidified.




etho

Semiconductor device and method for manufacturing the same

To provide a semiconductor device which has transistor characteristics with little variation and includes an oxide semiconductor. The semiconductor device includes an insulating film over a conductive film and an oxide semiconductor film over the insulating film. The oxide semiconductor film includes a first oxide semiconductor layer, a second oxide semiconductor layer over the first oxide semiconductor layer, and a third oxide semiconductor layer over the second oxide semiconductor layer. The energy level of a bottom of a conduction band of the second oxide semiconductor layer is lower than those of the first and third oxide semiconductor layers. An end portion of the second oxide semiconductor layer is positioned on an inner side than an end portion of the first oxide semiconductor layer.




etho

Semiconductor thin film, semiconductor thin film manufacturing method and semiconductor element

An amorphous oxide thin film containing amorphous oxide is exposed to an oxygen plasma generated by exciting an oxygen-containing gas in high frequency. The oxygen plasma is preferably generated under the condition that applied frequency is 1 kHz or more and 300 MHz or less and pressure is 5 Pa or more. The amorphous oxide thin film is preferably exposed by a sputtering method, ion-plating method, vacuum deposition method, sol-gel method or fine particle application method.




etho

Semiconductor device and manufacturing method the same

An object is to manufacture and provide a highly reliable semiconductor device including a thin film transistor with stable electric characteristics. In a method for manufacturing a semiconductor device including a thin film transistor in which a semiconductor layer including a channel formation region serves as an oxide semiconductor film, heat treatment for reducing impurities such as moisture (heat treatment for dehydration or dehydrogenation) is performed after an oxide insulating film serving as a protective film is formed in contact with an oxide semiconductor layer. Then, the impurities such as moisture, which exist not only in a source electrode layer, in a drain electrode layer, in a gate insulating layer, and in the oxide semiconductor layer but also at interfaces between the oxide semiconductor film and upper and lower films which are in contact with the oxide semiconductor layer, are reduced.




etho

Vehicle steering adjustment apparatus and method of use thereof

A device for use in a vehicle steering system, said device comprising at least one actuator affixed to a wheel linkage of at least one wheel of said vehicle steering system. The actuator comprises a rotation assembly engagable with a first wheel linkage segment, an electric motor for actuating movement of the rotation assembly via a gear box and one or more sensors integrally contained in the actuator for sensing one or more parameters selected from the group consisting of force, speed, turns and rotation. Rotation of the rotation assembly actuates linear movement of said first wheel linkage segment into and out of said actuator to thereby adjust one or more wheel parameters of said at least one wheel, and wherein said one or more sensors provide real time data to an actuator control unit integral to said actuator to self-adjust rotational parameters of said rotation assembly.




etho

Foam-in-place interior panels having integrated airbag doors including multi-shot injection molded airbag chute-door assemblies for motor vehicles and methods for making the same

Interior panels having integrated airbag doors for motor vehicles and methods for making such interior panels are provided herein. In one example, an interior panel comprises a substrate having outer and inner surfaces and an opening extending therethrough. A multi-shot injection molded airbag chute-door assembly is mounted to the substrate and comprises a chute wall that at least partially surrounds an interior space. A door flap portion is pivotally connected to the chute wall and at least partially covers the opening. A perimeter flange extends from the chute wall and has a flange section that overlies the outer surface of the substrate. A molded-in lip feature extends from the flange section and contacts the outer surface to form a seal between the flange section and the substrate. A skin covering extends over the substrate and a foam is disposed between the skin covering and the substrate.




etho

***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***Pre-weakened cover for an airbag and method of making

A pre-weakened cover of an airbag module is provided including a layer having an outer show surface and an opposing inner surface. A plurality of first cuts is arranged at a first angle on the inner surface. A plurality of second cuts is arranged at a second angle on the inner surface. Each of the second cuts intersects two adjacent first cuts to form a generally V-shaped pattern.




etho

Pre-weakened cover for an airbag and method of making

A pre-weakened cover of an airbag module is provided including a layer having an outer show surface and an opposing inner surface. A plurality of first cuts is arranged at a first angle on the inner surface. A plurality of second cuts is arranged at a second angle on the inner surface. Each of the second cuts intersects two adjacent first cuts to form a generally V-shaped pattern.




etho

Automated well control method and apparatus

A drilling control system monitors and compares drilling and completion operation sensor values and autonomously acts in response to conditions such as a kick or surge. Sensors in various combinations may monitor return fluid flow rate, fluid inflow rate, wellhead bore pressure, temperature of returning fluid, torque, rate of penetration and string weight change. The control system has corresponding control logic to monitor, warn and act based on the sensor inputs. The actions may include the warning of support personnel, closing an annular blowout preventer, shearing drill pipe using a ram shear, pumping heavier fluid down choke and kill lines, disconnecting the riser or various other actions.




etho

Methods and systems for improved drilling operations using real-time and historical drilling data

Methods and systems are described for improved drilling operations through the use of real-time drilling data to predict bit wear, lithology, pore pressure, a rotating friction coefficient, permeability, and cost in real-time and to adjust drilling parameters in real-time based on the predictions. The real-time lithology prediction is made by processing the real-time drilling data through a multilayer neural network. The real-time bit wear prediction is made by using the real-time drilling data to predict a bit efficiency factor and to detect changes in the bit efficiency factor over time. These predictions may be used to adjust drilling parameters in the drilling operation in real-time, subject to override by the operator. The methods and systems may also include determining various downhole hydraulics parameters and a rotary friction factor. Historical data may be used in combination with real-time data to provide expert system assistance and to identify safety concerns.




etho

Method and apparatus for opening threaded joints of drilling equipment

The invention relates to a method and apparatus for opening threaded joints of drilling equipment (6) by striking the drilling equipment (6) with the percussion device of a rock drilling rig (1) and by measuring vibration originating from the drilling equipment (6) during striking. In addition to vibration, measuring means (9) measure a parameter defining at least one additional condition, on the basis of which the decision to stop striking is made.




etho

Reverse circulation apparatus and methods of using same

In one aspect, an apparatus for drilling a wellbore into an earth formation is disclosed, which apparatus, according to one embodiment, may include a drill string configured to be conveyed into a wellbore, wherein an annulus is formed between the drill string and a wellbore wall, a first flow device configured to circulate a first fluid from an annulus to a bore of the drill string, and a second flow device positioned downhole of the first flow device, the second flow device configured to circulate a second fluid from the bore of the drill string to the annulus.




etho

Shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods

A cutting element for an earth-boring tool. The cutting element comprises a substrate base, and a volume of polycrystalline diamond material on an end of the substrate base. The volume of polycrystalline diamond material comprises a generally conical surface, an apex centered about a longitudinal axis extending through a center of the substrate base, a flat cutting surface extending from a first point at least substantially proximate the apex to a second point on the cutting element more proximate a lateral side surface of the substrate base. Another cutting element is disclosed, as are a method of manufacturing and a method of using such cutting elements.




etho

Systems and methods for processing drilling data

Systems and methods for processing drilling data. One embodiment provides a method comprising building user-designed contexts (which can be designated as built-in contexts) for drilling structures. The method also comprises orchestrating module execution within the user-designed contexts. The method further comprises providing data from the user-designed contexts to such modules via an interface. Some methods include monitoring drilling data to detect events (for instance departure from a pseudolog) and orchestrating module execution responsive thereto. The method can include exposing the orchestration of the execution of the module instances as a service. Moreover, some embodiments provide extra-contextual application program interfaces. In addition, or in the alternative, some embodiments schedule the orchestration of the modules based on declarations related to the inputs and/or outputs of the modules.




etho

Cooled-fluid systems and methods for pulsed-electric drilling

In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current, and a drillstring that defines at least one path for a fluid flow to the bit to flush detached formation material from the borehole. A feed pipe transports at least a part of said fluid flow to said path, and the feed pipe is equipped with a cooling mechanism to cool the fluid flow. The use of a cooled fluid flow may enhance the performance of the pulsed-electric drilling process.




etho

Apparatus and method for automated drilling of a borehole in a subsurface formation

Apparatus and method for automated drilling of a borehole in a subsurface formation. In one embodiment, a method includes selecting at least one control variable. A drilling performance objective having a value that is influenced by drilling of the borehole using the at least one control variable is defined. A first interval of the borehole is drilled maintaining the at least one control variable at a first value. A second interval of the borehole is drilled maintaining the at least one control variable at a second value. A third interval of the borehole is drilled maintaining the at least one control variable at a third value. The third value is selected based on a comparison of the values of the drilling performance objective while drilling the first interval and second interval to a predetermined optimal value of the drilling performance objective.




etho

Method of completing a well using a friction reducing completion fluid

A method for reducing the friction forces between tubulars, for example coiled tubing in casing includes mixing a selected suspending agent and surfactant and polymer particles in oil, then adding the mixture to water and pumping the mixture down the tubing. The mixture is particularly useful in coiled tubular drilling inside casing of an oil or gas well. The formulation has also been found to reduce corrosion on metal surfaces.




etho

Method and system for delineating a second wellbore from a first wellbore

Disclosed herein is a method of delineating a second wellbore from a first wellbore. The method includes, emitting acoustic waves from a tool in the first wellbore, receiving acoustic waves at the tool reflected from the second wellbore, and determining orientation and distance of at least a portion of the second wellbore relative to the tool.




etho

Method and system for monitoring a well for unwanted formation fluid influx

A method of monitoring a well for unwanted formation fluid influx is disclosed. Measurements of well outflow are acquired during a period in which drilling operations are performed for the well. Occurrences of stagnant flow events during the period are determined. An outflow signature is generated from the well outflow measurements for each stagnant flow event. The outflow signatures are displayed sequentially in time of occurrence. Each outflow signature is analyzed for an anomaly.