Abstract: Methods are described using resistivity measurements obtained while drilling one or more offset wells using a drilling mud to guide drilling of one or more uncased intervals of a well to identify a casing point or points in the uncased intervals of the well. Resistivity data is gathered during drilling the offset well and prior to penetrating a region of interest of a known subterranean formation. The drill string in the uncased interval of the well progresses toward the region of interest, using resistivity data at similar depths to identify a casing point while the drill bit advances toward but does not penetrate the region. In certain embodiments resistivity may also be obtained in front of the drill bit in the uncased interval of the well and used in conjunction with the offset well resistivity data to identify casing points in the uncased intervals of the well.

Abstract: In a formation pressure tester tool, an elongated filter piston possibly having a tapered or sharp edge configured to penetrate mud cake while the probe is being set. At the end of the setting sequence, the filter piston is retracted, thus opening a flowpath from the formation, through the mudcake, to the probe.

Abstract: The components of surfactant-laden fluids, such as those used in hydrocarbon recovery operations such as for stimulation, e.g. hydraulic fracturing, may be re-used and re-cycled into components for subsequent use in a wide range of similar or different operational fluids. In particular, aqueous fluids gelled with viscoelastic surfactants and having components therein to pseudo-crosslink the elongated VES micelles and for internal breaking may be separated into its component parts by relatively inexpensive methods such as filtration. One filtration method includes contacting the surfactant-containing fluid with a particle pack having particulate additives therein which filter out or extract fine solids from the fluid. In an alternate embodiment the surfactant-laden fluid is a nano- and/or micro-emulsion wellbore cleanup fluid.

Abstract: Disclosed herein are an acid emulsion fluid for use in sealing target portions of a hydrocarbon producing formation penetrated by a wellbore and the method of use thereof for fluid loss control.

Abstract: A milling tool which includes a nose cutting portion, a cutting section having a plurality of hardened cutters and a shaft portion. A wear pad is disposed on the cutting section and shaft portion. Upon the shaft portion, the wear pad extends radially outwardly to an engagement diameter that exceeds the maximum cutting diameter of the cutters.

Abstract: A method of agglomerating coal particles in a subterranean formation having a coal seam, comprising the steps of providing (a) a fluid having an aqueous medium and a first collector and/or a frother; (b) pumping the fluid into the formation and (c) contacting coal particles in the formation thereby agglomerating the contacted coal particles.

Abstract: A method of using jarring tool in a wellbore, where the jarring tool is electrically activated to apply an impact force transmitted to at least another tool in the well. The method may further comprise operating a hydraulic mechanism in response to electrical activation of the jarring tool to cause a first member of the jarring tool to be moved to collide with a second member of the jarring tool to apply the impact force. Also, the method may involve electrically activating the jarring tool by communicating at least one command over at least one electrical conductor to the jarring tool.

Abstract: Cement spacer fluids may be densified for use in conjunction with drilling fluids and cement slurries for cementing operations involving oil and gas wells, wherein such densifying is done via the addition of nanoparticles to the spacer fluid. The disclosure is directed to analogous methods of densifying completion spacer fluids using added nanoparticles and to systems for implementing the use of such nanoparticle-containing compositions in well cementing operations.

Abstract: A connector is lowered onto and secured to a subsea member, effecting a seal between subsea member and the connector. The connector includes an outer body defining a cavity, and an inner body defining a bore, wherein the lower end of the inner body resides within the cavity. The connector also includes an engaging member coupled to the outer body and adapted to engage the subsea device, the engaging member radially movable between a disengaged position and an engaged position. The connector includes a seal carried by the inner body and adapted to form a seal between the bore and the subsea device. Finally, the connector includes a pre-loading member coupled to the outer body, operable to urge the inner body and seal against the subsea device to exert a pre-loading force on the seal. A differential pressure between the bore and a subsea environment energizes the seal.

Abstract: A connection device comprises a lock component of non-circular cross-sectional shape, the lock component being both angularly and axially moveable relative to a housing, stop means operable to limit angular movement of the lock component relative to the housing, the lock component having a threaded drive region, and a drive nut in threaded engagement with the drive region, wherein angular movement of the drive nut relative to the housing when the stop means are not engaged is able to drive the lock component for angular movement, rotation of the drive nut when the stop means are engaged causing axial displacement of the lock component relative to the housing.

Abstract: A downhole releasable tubular connection includes a joint between two tubing strings, wherein one of the two tubing strings is radially expanded and plastically deformed by an expansion device. When the expansion device is moved adjacent to the joint, a threaded connection mechanism in the joint reacts to the radially outward forces of the expansion device and releasably expands, thereby decoupling the tubing strings.

Abstract: The present application is to a method of sequentially drilling a number of frac sleeves in a down hole well. The design enables the removal of fracture sleeve pistons from between treatment zones without requiring drilling or milling of the sleeve while allowing for full flow of fluids after treatment. A number of plugs or pistons having sequentially smaller central bores allows for balls to sequentially be inserted through the tool to selectively close off the pistons to isolate one zone from another. A release tool may inserted into the tool to engage and unthread the plugs to open up the inner diameter of the tool to allow greater production flow through the tool. The plugs may have mating tabs and holes so that as each plug is unthreaded it falls to the next plug and engages so that each plug may sequentially be unthreaded from the sleeve.

Abstract: A dual barrier plug system includes a frac spool, having a dual barrier plug disposed within the interior of the frac spool; a valve selector member disposed within the interior of the dual barrier plug; and the plurality of seals are used to seal fluid flow from below the frac spool, and the seals provide two barriers to each fluid flow.

Abstract: The invention is a sealing system, such as a packer, that is used in a wellbore to seal against an exterior surface, such as a casing or open wellbore. The sealing system includes a swellable material that swells from an unexpanded state to an expanded state thereby creating a seal when the swellable material comes into contact with a triggering fluid.

Abstract: Methods and apparatus include tubing expanded to create a seal in an annulus surrounding the tubing. The tubing includes a sealing material selected to cause forming of undulations in a diameter of the tubing upon expansion of the tubing. Various factors of the sealing material such as deviations in its thickness influence sealing performance of the tubing with the sealing material.

Abstract: The invention relates to a fire-extinguishing system of the high-pressure gas type, in which the gaseous extinguishing agent is stored under high pressure in at least one high-pressure gas bottle (1). The bottle valve operates, with interposition of a container attachment for the extinguishing gas, as a pressure-controlled, reducing and self-regulating control valve (3). By means of a predetermined control pressure which corresponds to the pressure in the extinguishing line system (2), the pressure of the extinguishing gas is reduced from, for example, 150 to 300 bar within the control valve to, for example, 60 bar. This makes it possible to dispense with all the high-pressure components used to date between the bottle valve and the extinguishing line system. Furthermore, a computational software is no longer required.

Abstract: The present invention provides a fire extinguishing device including an upright standing hollow body. An air compressor pump is connected to the hollow body for providing pressurized air to the hollow body. At least one heat activated fluid release valve is connected to the hollow body. The present invention further provides a method of configuring a tree display.

Abstract: A landing pad with an inbuilt fire suppressor that includes at least one first interlocking unit. The interlocking unit includes a landing surface, wherein the landing surface includes openings distributed thereon; and at least one interlocking mechanism located along its periphery. The interlocking mechanism is adapted to interconnect with a corresponding interlocking mechanism from another interlocking unit. A hollow chamber is located beneath the landing surface such that the hollow chamber is in fluid communication with the openings. A heat conductive layer is arranged to span across the hollow chamber thereby subdividing the hollow chamber into an upper section and a lower section. The upper section is in fluid communication with the openings. The heat conductive layer is adapted to dissipate heat from a localized point thereon to over the entire heat conductive layer.

Abstract: A gas tiller including a frame defining a first pivot axis and a second pivot axis spaced a distance from the first pivot axis, a motor coupled to the frame, a set of rotary tines coupled to the frame and operatively coupled to the motor, a swing arm pivotably coupled to the frame and rotatable about the first pivot axis between a first and second arm positions corresponding to travel and tilling configurations, respectively, of the tiller, the swing arm including one or more wheels coupled thereto, and a drag stake pivotably coupled to the frame and rotatable about the second pivot axis between first and second stake positions. Movement of the swing arm between the arm positions moves the drag stake between the stake positions.

Abstract: A roller cleaning assembly for a grass processing apparatus, such as a grass or turf roller, has a roller housing releasably mountable in a hollow cavity in the body of a smoothing head, where the smoothing head contains idler or smoothing rollers. A pair of roller brushes is rotatably journalled in the roller housing, and are driven by the idler or smoothing rollers via friction drive rollers. Each brush roller has at least one spiral brush and/or spiral wiper blade to clean the external surfaces of the adjacent idler or smoothing rollers and deposits the clippings or other waste in collector sections in the roller housing.

Abstract: The screwdriving power tool includes a hollow spindle (8) rotatably supported in the tool housing (4) and driven by a motor (26), a clutch (30) that rotatably connects and disconnects the hollow spindle (8) with and from the motor (26), respectively, in engagement and disengagement positions of the clutch (30), a screwing-in spindle (6) connected with a chuck (10) for a working tool (12) and connected with the hollow spindle (8) for a joint rotation therewith and for an axial displacement relative thereto, and a percussion mechanism (14) for applying a pulsed axial force to the screwing-in spindle (6), with the clutch (30) being brought into its engagement position by the screwing-in spindle (6) by being displaced against a biasing force of the clutch springs (40, 44), and being locked in its engagement position.

Abstract: An electric toothbrush as a vibration generator is provided with a case, a motor, an eccentric rod, a stem, and an oral hygiene member. The eccentric rod has an eccentric weight portion and a rod portion connected to a drive shaft of the motor. The angle between the first central axis of the eccentric weight portion and an extension line, defined by extending the second central axis of the rod portion towards the eccentric weight portion, is greater than 0 degrees and equal to or less than approximately 10 degrees in a state in which one end of the eccentric rod is not inserted into a shaft receiving portion. In this way, a fixed structure of an eccentric rod and a vibration generator are obtained which reduce noise generated by vibration when run at high as well as at low rotation speeds.

Abstract: Used in a pneumatic tool, a switch includes a valve seat set in an air intake passage and movable into contact with or away from a gas control member and defining an air hole, and a valve rod inserted through the air hole of the valve seat. When the positioning portion of the valve rod is stopped against the valve seat and the valve seat is stopped against the gas control member, the air intake passage is blocked. When the valve rod is biased relative to the valve seat, the positioning portion is moved away from the air hole of the valve seat for allowing a compressed gas to pass through the air hole, and when the valve rod is biased further to carry the valve seat away from the gas control member, the compressed gas is allowed to pass between the valve seat and the gas control member.

Abstract: A wrench is disclosed which provides a hydraulically powered ratchet wrench within a compact footprint. One hydraulically powered piston operates to tighten a fastener, while a second hydraulic piston is operable to reset the first piston in preparation for a subsequent tightening operation. An intermediary torque multiplying device may be placed between the driven pistons and the object being acted upon by the pistons. Fluid supply hoses may be coupled to the wrench assembly using a two-axis swivel to facilitate insertion of the wrench assembly into areas that are difficult to access.

Abstract: Systems and methods for cooling a Rotating Control Device (RCD) and RCD insert during drilling operations are described. The system includes a body for connection between the RCD and a hot drilling fluid return outlet of a well head, the body including an inlet for injecting cool drilling fluid adjacent the RCD insert and an outlet for removing partially warmed drilling fluid. During operation, cool drilling fluid is circulated through the inlet and outlet such that cool drilling fluid is in direct contact with hot drilling fluid recovered from the well in a buffer zone adjacent the hot drilling fluid return outlet.

Abstract: Various embodiments are directed to a method and apparatus for horizontal directional drilling with a tool library. Various methods include storing a plurality of operational tool profiles in memory, the operational tool profiles of the plurality respectively associated with a plurality of boring tools attachable to a drill string for HHD and each of the operational tool profiles of the plurality including operating parameters for the boring tool of the plurality with which the operational profile is associated, and selectively displaying the operational tool profiles on a display screen based on user input.

Abstract: The present disclosure is related to an apparatus for taking a sample in a wellbore during drilling operations. The apparatus may include a drill bit configured to form a core and at least one retractable cutter internal to the drill bit for taking the sample from the core. The apparatus may also include equipment for analyzing the sample, extracting fluid from the sample, testing fluid from the sample, encapsulating the sample, and/or tagging the sample. The present disclosure is also related to a method for taking a core sample without interrupting drilling operations. The method includes taking a core sample using a drill bit configured to take a core sample using internal cutters. The method may also include analyzing the sample, extracting fluid from the sample, analyzing fluid from the sample, encapsulating the sample, and/or tagging the sample.

Abstract: A drilling apparatus which includes a drill bit attachable to the drilling end of a drill string, the drill bit including a bit body being attached to a shank and having a working face with at least one cutting element. The drilling apparatus also includes a jack element positioned within a bore of the bit body having a working tip substantially protruding from the working face, and which jack element is also adapted to move with respect to the bit body. One or more position feedback sensors are positioned proximate the jack element and are adapted to detect the axial and/or angular position of the jack element with respect to the bit body.

Abstract: A top drive system with a plurality of top drive modules, which are configured to be quickly exchanged. The top drive modules may include any or all of the following: a main body module, a gearbox module, a drive motor module, a pipe handler module, an upper fluid module, a lower well control valve module, a block interface module, a retract system interface frame module, a cooling system module, a work platform guard module, and a quill saver sub module. Alternatively, the top drive may comprise a first top drive and a second top drive which are configured to be quickly exchanged.

Abstract: A cutting element is provided having a substrate and an ultra hard material cutting layer over the substrate. The cutting layer includes a surface portion for making contact with a material to be cut by the cutting element. The surface portion in cross-section has a curvature that has a varying radius of curvature. A bit incorporating such a cutting element is also provided.

Abstract: Ultra-hard composite constructions comprise an ultra-hard body having a plurality of diamond crystals bonded to one another by a carbide reaction product. A reactant material is selected from materials that are strong carbide formers to form a carbide reaction product with diamond at HPHT conditions. The body includes a high-density diamond region positioned along a surface portion of the body and that is substantially exclusively diamond, and that has a diamond volume content of 95 to 99 percent or more. The high-density diamond region can form a working surface of the composite construction. A substrate can be attached to the body, thereby forming a compact, and can include metallic materials, ceramic materials, carbides, nitrides, cermets, and mixtures thereof. An intermediate layer can be interposed between the body and the substrate depending on the substrate and/or method of attaching the same.

Abstract: A vehicle has a rotation-symmetrical, particularly spherical housing which is disposed about a rotational axis and has a convex drive and running surface. The housing is composed at least partially of transparent material, and has at least one door for at least one person to enter and exit. In the interior of the housing there is a seat for the at least one person, a drive for rotating the housing, and a device for control purposes. Bearings are provided in the rotational axis of the housing for rotatably mounting a lower seat structure receiving the seat. The drive is disposed on the lower seat structure and connected thereto. In order to improve the handling characteristics of such a vehicle, the seat is disposed displaceably laterally with respect to the lower seat structure.

Abstract: In a friction drive device comprising first free rollers and second free rollers contacting each other at the outer circumferential surfaces thereof to frictionally transmit power from the second free rollers to the first free rollers, in order to minimize the slippage between the first and second free rollers, minimize the power loss and cause the first free rollers to move as designed, an outer peripheral part of each first free roller defining an outer circumferential surface thereof has a different stiffness from that of an outer peripheral part of each second free roller defining an outer circumferential surface thereof.

Abstract: [Task] To allow a wheel that provides a performance required for use in an omni-directional vehicle to be manufactured in an efficient manner. [Solution] An annular member (51) comprises a C-shaped main body (61) and a complementary member (62) defining an endless annular shape jointly with the main body (61), a joint (63) between the main body (61) and complementary member (62) includes mating surfaces that are non-perpendicular to the cross sectional center line of the annular member, and the main body (61) and the complementary member (62) are fixedly joined to each other by using a threaded bolt (64) passed radially through the mating surfaces.

Abstract: Heat generated by a drive source of a friction drive device such as an electric motor is allowed to efficiently dissipate to the atmosphere, and the friction drive device and an omni-directional vehicle using the same is designed in a highly compact manner. Left and right electric drive devices are placed on a central axial line of left and right rotatable drive members, and external teeth members serving as output members of the electric drive devices are directly connected to the respective rotatable drive members in a torque transmitting and heat transmitting relationship.

Abstract: A drive device for a vehicle, an electric machine and an axle which is drivable by the electric machine. A disengageable mechanical coupling is provided between the drivable axle and the electric machine. This coupling is designed as a shiftable freewheel coupling.

Abstract: The present invention relates to a management method of the functioning mode of a hybrid drive assembly for vehicles, in particular scooters, and a hybrid drive assembly, comprising at least one internal combustion engine and an electric machine, using the method. The method according to the invention comprises the phases of determining a desired torque and a vehicle state on the basis of a set of received input parameters and/or commands and is characterized in that it comprises the phases of operating the internal combustion engine so that it does not provide torque and operating the electric machine so that it functions as generator for charging an accumulator.

Abstract: A drive system (1) for a drive axle (2) of a motor vehicle has an electric machine (16) that at least partially encloses the drive axle (2) and that is capable of driving the drive axle (2). The electric machine (16) is coupled in a shiftable fashion to the drive axle (2) or is decoupled therefrom.

Abstract: A cooling system for a vehicle with hybrid propulsion, the cooling system including a hydraulic circuit, within which a refrigerant flows, with a main branch to cool of a thermal engine, and a secondary branch to cool electrical components and at least one common radiator, which comprises a first portion, that is normally used by the main branch of the hydraulic circuit and has at least two trays arranged at the ends, and a second portion that is normally used by the secondary branch of the hydraulic circuit and has at least two trays arranged at the ends.

Abstract: A work vehicle includes: a seat disposed between front wheels and rear wheels; an engine disposed between the right and left rear wheels rearward of the seat; a battery disposed in a container space positioned downward of the seat disposed frontward of the rear wheels; an air cleaner disposed in the container space and arranged proximally to the battery in a vehicle longitudinal direction; and an opening-closing lid unit for covering the air cleaner and the battery from outside in a vehicle transverse direction. An element of the air cleaner is disposed in the air cleaner so that the element is insertable and removable in the vehicle transverse direction, and a position of the air cleaner is set so that the element is accessible from outside the vehicle body.

Abstract: A position control system including an actuator having a first end, an axis and including a driving device for moving the first end of the actuator in opposed directions, the first end of the actuator configured to move a hood between an open position and a closed position. A surface is associated with the hood that is configured to interact with the first end of the actuator in response to the first end of the actuator contacting and moving the hood between the open position and the closed position. The first end of the actuator moves along the axis and remains substantially coincident with the first axis while the first end moves the hood between the open position and the closed position.

Abstract: The present invention relates to a steering device for a self-propelled construction or utility machine. The construction or utility machine includes a cab having a carriage, which is adjustable transversely to the travel direction, on which operating and/or actuating elements and at least one steering wheel for steering the construction or utility machine are situated. The steering wheel is coupled via a steering drive shaft, which is mounted on the adjustable carriage, and is carried along upon adjustment, to a steering output shaft, which is situated fixed in place on the construction or utility machine and runs transversely to the steering drive shaft.

Abstract: In a motor device 300 mounted on a mobile body, a pressurizing mechanism for increasing the pressure in a motor chamber 14 in which a motor is installed has a compressor 30, which is driven to rotate by an engine 20 serving as driving means for driving the mobile body, to produce compressed air for motor chamber pressurization, and the compressed air coming from the compressor 30 is fed into the motor chamber 14 through a pipe 72 almost constantly while the engine 20 is being driven.

Abstract: The present invention combines the principles of a gas turbine engine with an electric transmission system. A method and apparatus are disclosed for utilizing metallic and ceramic elements to store heat energy derived from a regenerative braking system. The subject invention uses this regenerated electrical energy to provide additional energy storage over conventional electrical storage methods suitable for a gas turbine engine. The subject invention provides engine braking for a gas turbine engine as well as reducing fuel consumption.

Abstract: An energy storage system, for a hybrid vehicle including an internal combustion engine having an output shaft and a transmission operably coupled to the output shaft, includes a reservoir containing working fluid, a reversible pump/motor in fluid communication with the reservoir, a first clutch selectively drivably coupling the output shaft of the engine and the reversible pump/motor, a second clutch selectively drivably coupling an output shaft of the transmission and the reversible pump/motor, and an accumulator containing working fluid and gas. The accumulator is in fluid communication with the reversible pump/motor to deliver pressurized working fluid to the reversible pump/motor when operating as a motor to drive one of the respective output shafts of the engine and the transmission, and to receive pressurized working fluid discharged by the reversible pump/motor when operating as a pump driven by the one of the respective output shafts of the engine and the transmission.

Abstract: A rear portion structure (100) of a motorcycle (1) comprises a chassis frame (5); a rear wheel (17) positioned below the rear portion of the chassis frame (5); a fender main body portion (110) anchored to the rear portion of the chassis frame (5) and positioned above the rear wheel (17); a fender hanging portion (120) configured separately from the fender main body portion (110) and covering at least a portion of the rear wheel (17); and a support stay (130) anchored to the rear end portion of the chassis frame (5) (rear end frame portion (5a), extending aft approximately horizontally from the rear end portion, and supporting the fender hanging portion (120).

Abstract: A system for classifying an occupant using a reduced quantity of force sensors. The system includes one or more force sensors, an electronic control unit (“ECU”), and a vehicle safety system. The force sensors are, for example, i-Bolt™ sensors, or other suitable force sensors or force sensing systems. The ECU includes, among other things, an occupant classification module and a safety monitoring module. The occupant classification module receives signals from the force sensors, determines one or more moments about a fixed point of a vehicle occupant control volume, and determines an occupant classification metric based on a mass of the control volume and a center of gravity of the control volume. The occupant classification module uses the occupant classification metric to classify an occupant into one of a plurality of occupant classifications. Based on the occupant classification, the safety monitoring module controls one or more vehicle safety systems.

Abstract: A vehicle is provided that includes an intake device including a throttle body that is connected to a rear-side surface of a cylinder head which constitutes a part of an engine body which is mounted on a vehicle-body frame in a state where an axis of a crankshaft is arranged along the longitudinal direction. A sufficient clearance can be ensured between the intake device and a member which is arranged above the throttle body. A posture of the throttle body 30 is set such that an axis C2 of an intake passage formed in the throttle body 30 extends in the rearward and downward direction.

Abstract: An upper pipe 55 includes a single front pipe portion 68, a branch portion 69 bifurcated from the rear end of the front pipe portion 68, and two left and right rear pipe portions 71L, 71R extending vehicle-rearward from the branch portion 69. A cylinder head cover 58 is located between the two left and right rear pipe portions 71L, 71R as viewed from above. Therefore, the cylinder head cover 58 can be accessed from above and removed from a cylinder head, whereby a valve train chamber can be inspected and maintained.

Abstract: A utility vehicle comprises a vehicle body frame including a main frame including a floor member and a pair of right and left side members and a sub-frame for reinforcing the main frame, each of the side members includes a side pipe element, a first pillar pipe element, a second pillar pipe element and a third pillar pipe element, the sub-frame includes a first cross member provided between and coupled to second pillar pipe elements, one end portion of the first cross member is detachably coupled to one of the second pillar pipe elements and an opposite end portion of the first cross member is detachably attached to the other second pillar pipe element.