115 results about "Core plug" patented technology

An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.

The invention relates to a triaxial core holder. A pressure cap, a left plug, a core chamber, a left core plug, a positioning washer and a left small pressure cap are arranged at the left part of the core holder, and an axial pressure piston, a right small pressure cap, a right plug and a right core plug are arranged at the right part thereof. The triaxial core holder is characterized in that a gum cover is arranged on the periphery of the ore chamber and connected with two pairs of pistons through connecting plates; and two pressure-bearing cylinders are connected on the outer sides of the pistons. By adopting three groups of pistons (horizontal, vertical and axial), the triaxial core holder can simulate the holder with two pressures at most than before. The invention can better simulate the three-dimensional stressed situation of the core in a stratum, and the three groups of pressures can be freely adjusted, therefore, the stressed situation of the stratum can be truly simulated, so that the experimental data is closer to actual data inside the stratum. The invention can provide a better manner for petroleum exploration.

Well core data descriptions are received as input digital data for computer lithofacies modeling. Digital templates are established for carbonate and clastic core description based on reservoir rock formation analysis. Description criteria of the template for carbonate rock can include texture, mineral composition, grain size, and pore type. For clastic rock, the criteria in the template can include grain size, sedimentary structure, lithology, and visual porosity. The data and observations regarding these criteria are entered into a computer 3D geological modeling system directly. Wireline log data are integrated to calibrate with well core description to derive lithofacies. The lithofacies are exported in digital format to be entered into the 3D geological modeling system. A geologically realistic model of the reservoir can be established.

The invention relates to a rapid low-cost water level lowering well sealing device and construction method thereof. The device is arranged in the upper mouth of the water level lowering well, the upper mouth of the water level lowering well is fixed with a well mouth pipe, the periphery of the well mouth pipe is welded with embedded plates, the embedded plates are embedded in concrete of base plate, the well mouth pipe is internally welded with an end enclosed steel plate, the end enclosed steel plate is provided with at least one water bursting hole, the water bursting hole is welded with a sleeve, and the sleeve is connected with a core plug by screw thread. The invention realizes sealing of water level lowering well by welding of parts and threaded connection, osmosis path of underground water is completely blocked, and no broken stone or concrete is required to be refilled in the well. Sealing effect is good, the aim of being watertight can be realized; construction is convenient, construction speed is rapid, well sealing operation can be completed in 20 minutes generally; construction cost can be reduced, and by adopting the method, over 50% of cost per well can be saved compared with a common method. The invention is applicable to water draining construction of foundation, can be adopted when sealing water level lowering well of foundation pit and also can be used in other fields.

The invention relates to a downhole instrument high-speed single-core cable transmission device used for well logging of a flowing well and a water injection well, wherein, a high-speed cable telemetry pipe nipple is connected with a releaser through a single-core plug on the upper end and connected with various parameter measurement pipe nipples through a slip ring four-core plug on the lower end; a telemetry pipe nipple circuit and a parameter pipe nipple circuit comprise singlechips which are connected with industrial buses; a telemetry pipe nipple industrial bus and a parameter measurement pipe nipple industrial bus are communicated with each other through a signal core 2 and a signal core 3 of the slip ring four-core plug; each singlechip comprises 8 address bits, 16 data bits and 255 test channels, controls a data output port to transmit serial data and a data input port to receive the serial data, and controls transmission and receipt of industrial bus data; after address comparison and coding of the received data and controlled transmission and receipt of the industrial bus data, the data is transmitted to the ground through a single-core cable; transmission rate of the cable reaches 20 K, and transmission rate of a downhole instrument reaches 40K, thereby well-logging aging is greatly improved.

The invention discloses a coal permeability testing device and a use method thereof. The coal permeability testing device comprises a support, a clamper, a confining pressure pump, an axial pressure pump, a gas cylinder and a gas booster pump; the clamper is arranged in the support, and comprises a barrel, the upper end and the lower end of the barrel are respectively provided with a core plug in a penetrating manner, the core plugs are respectively provided with air vents along the axial direction, the side wall of the barrel is provided with a confining pressure interface which communicated with an inner cavity of the barrel, the confining pressure interface is connected with the confining pressure pump through a pipeline; an axial pressure cavity is arranged on the support above the clamper, the lower end of the axial pressure cavity is provided with a telescopic rod, the lower end of the telescopic rod is connected with the upper end of the core plug at the upper end of the barrel, the axial pressure cavity is connected with the axial pressure pump through an axial pressure pipeline; the air vent in the core plug at the upper end of the barrel is connected with a gas outlet end of the gas booster pump through a pipeline, a gas inlet end of the gas booster pump is connected with the gas cylinder. The coal permeability testing device is simple in structure, convenient in operation and accurate in test result, not only can be used for testing the coal permeability, but also can be used for testing the permeability and ultrasonic characteristics of other rock specimens.

The invention relates to a maintenance-free detection device and a method thereof for the air tightness of a small cell cover, aiming at the problem that the traditional detection device and method are difficult to effectively detect the air leakage of an accumulator cell. The detection device comprises a water tank, the water tank is provided with a liftable device rack which is horizontally provided with a support plate; symmetrical and translational L-shaped stop levers are arranged below both sides of the support plate; the outer ends of the stop levers are provided with core plugs; the support plate is also provided with an inflation device which inflates through a through hole of an electrohydraulic display; and the air inflation device comprises an inflation head. The invention changes the traditional detection method of exposing in the air into the detection device and method of immersing in water, has the advantages of uniform specifications and no deviation and is convenient to routinize the product detection.

A reel assembly includes first and second flanges, a core body disposed between the first and second flanges, and a core plug. The core body has a central axis extending in a longitudinal direction between the first and second flanges. The core plug is coupled to the core body, and includes at least a first structure disposed at least in part radially inward of the core body toward the central axis. A plurality of fasteners couples the first flange to the first structure.

The invention discloses a pneumatic high-speed switch valve driven by giant magnetostriction, comprising a giant magnetostrictive actuator and a switch valve. The giant magnetostrictive actuator comprises a shell, a driving coil, a coil framework, a mandril, a giant magnetostrictive rod, an upper magnetic conduction body, a dished spring, a magnetic conduction sleeve, a lower magnetic conduction body and an adjusting bolt. The switch valve comprises a valve port plate, a cantilever core plug, a cantilever cover, a valve cover and a sealing gasket, wherein a cantilever simultaneously plays roles of amplifying displacement and serving as a valve plug and can realize automatic resetting. Due to a rectangular variable cross-section beam structure with optimized size, the valve plug is stressed more reasonably, and the equivalent mass is reduced. The thermal expansion coefficient of the coil framework is close to that of a material for making the giant magnetostrictive rod, and thus the influence of temperature rise on valve port output is restricted. The invention has the remarkable characteristics of small size, large flow, high frequency response, stable working performance, and the like.

The invention provides a device and method for evaluating the capillary force in water injection process of an oil reservoir. The device and the method can simulate the capillary force of a stratum inthe actual water injection process of the oil reservoir. A rubber sleeve is arranged in a cylinder of a core holder, the end of the rubber sleeve is sleeved with a tapered sleeve, a sealing press capis in threaded connection with the cylinder, and a stopper is fixed; the stopper is in threaded connection with a core plug, and the length of the core plug is adjusted; the inner end of the core plug is arranged in the rubber sleeve; a high-permeability metal isolation plate is arranged between the stopper and the core, and circulation channels are formed in the radius and tangential directionsof the high-permeability metal isolation plate; a sieve is arranged between the high-permeability metal isolation plate at the outlet end and the core plug, the outer end of the core plug is connectedwith a pipeline fixing connector, and an annular pressure connector is connected with the outer part of the cylinder. The method provides steps and processes for the specific operation of experimental equipment and how to obtain a curve about the capillary force and the saturation degree. The device and the method eliminate influences brought by semi-permeable isolation plates or semi-permeable membranes, meanwhile the influence of the liquid end effect is also weakened, and experimental data becomes more accurate and reliable.

The invention discloses a hot metal high-temperature heat pipe. The hot metal high-temperature heat pipe comprises a liquid filling pipe, a top end cover, a heat pipe shell, a bottom end cover, a gap,a condensation section liquid absorbing core, a heat insulation section liquid absorbing core, an evaporation section liquid absorbing core, a steam cavity, a liquid absorbing core plug and a gas storage bag. The closed liquid filling pipe, the top end cover, the heat pipe shell and the bottom end cover jointly form a closed space of the heat pipe. The liquid filling pipe is connected with a hotmetal filling loop through a connecting element, and filling of a working medium is achieved. The backflow resistance of the liquid working medium can be reduced through the gap. The evaporation section liquid absorbing core, the heat insulation section liquid absorbing core and the condensation section liquid absorbing core jointly provide power for backflow of the liquid working medium. The wavestructure of the heat insulation section liquid absorbing core can reduce liquid drop entrainment, and the condensation section liquid absorbing core adopts a fin structure to accelerate steam condensation. The liquid absorbing core plug can store the working medium and adjust the mass of the working medium participating in circulation. The gas storage bag can limit non-condensable gas, and the influence of the non-condensable gas on heat transfer is reduced.

The invention relates to a device for automatically controlling semicontinuous casting liquid level of aluminum and aluminum alloy, comprising a smelter control part, a sluice control part and a casting platform control part; the smelter control part comprises a hydraulic pump and a hydraulic cylinder, one side of the smelter is supported on a base through a rotary shaft, the other side of the smelter is hinged with a piston rod of the hydraulic cylinder, the cylinder barrel of the hydraulic cylinder is hinged on the base, the hydraulic cylinder is accessed into the hydraulic pump through pipelines via an electromagnetic valve, and the hydraulic pump is accessed into an oil tank; the sluice control part comprises an air cylinder and a sluice baffle, a position finder and the sluice baffle are arranged at the entrance of the casting platform, the piston rod of the air cylinder is connected with the sluice baffle in a driving manner, and the air cylinder is accessed into an air pressure source through pipelines via an electromagnetic valve; the casting platform control part comprises a DC motor and a core plug; the position finder is arranged in a crystallizer provided with the core plug, and the DC motor is connected with the core plug in a driving manner. The device can ensure accurate control on the whole semicontinuous casting process and improves cast ingot quality.

An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.

The invention discloses a connecting structure formed by a data stick, a drill collar and an internal pup joint and a logging while drilling instrument.The data stick comprises an outer sleeve with a through hole, an inner sleeve with a through hole, a first multi-core plugging component, a second multi-core plugging component and a pressure cap, wherein the inner sleeve is mounted in the outer sleeve and rotates relative to the outer sleeve, the first multi-core plugging component is mounted inside one end of the inner sleeve and is positioned by a spigot of the outer sleeve, the second multi-core plugging component is mounted inside the other end of the outer sleeve and is connected with the first multi-core plugging component, and the pressure cap is mounted at the other end of the outer sleeve, sleeves the inner sleeve and is positioned by a spigot of the inner sleeve so as to prevent the inner sleeve from shedding from the outer sleeve.The data stick is used for write in and data exchange of an internal chip and a circuit of the pup joint and procedure chips of an external display terminal, an input terminal, a power source and the like of the logging while drilling instrument, instrument operation state monitoring, power transmission and the like.

The invention discloses an in-site automatic charging device of an unmanned aerial vehicle on a vehicle-mounted lifting platform. The in-site automatic charging device comprises the unmanned aerial vehicle, the vehicle-mounted lifting platform, a socket fixing seat, a nine-core socket, a plug fixing sliding seat, a sliding rod, a through type lead screw motor, a lead screw, a lead screw nut, a plug clamping seat, a nine-core plug, an oil-free lining and a charger. In the in-site automatic charging device, the through type lead screw motor is controlled to positively and reversely rotate by a control system, the lead screw nut drives the nine-core plug to forwards and backwards move, so that the charging and reset operation of a power supply plug is achieved, and in-site automatic charging of the unmanned aerial vehicle is achieved. The full-automatic charging device which is convenient and rapid is provided by the invention, and a foundation is provided for cruising charging of the unmanned aerial vehicle on the flexible vehicle-mounted lifting platform.

An end-board is provided for supporting and handling a core-wound roll of material, such as a roll of polymer film. The end-board generally comprises a support plate comprising a product face, an outer face, a core support aperture, a core channel, and the core support aperture for supporting a core plug or a core therein. The product face comprises a roll recess for receiving an end of the core-wound roll within the roll recess when the core plug or core is positioned in the core support aperture. A locking collar may also be provided to selectively engage the support plate in the support plate core channel to prevent the supported core or core plug from passing through the core channel. A pair of handles may also be provided within the support plate to facilitate end-board manipulation.

The invention provides a cloud-computing-based plug-in model of a data mining system. The model comprises a kernel layer, a core plug-in layer and a user-defined layer, wherein the kernel layer calls plug-ins of the core plug-in layer; the core plug-in layer receives a call signal from the kernel layer and calls the plug-ins of the core plug-in layer, plug-ins and data are searched from the user-defined layer if plug-ins required by the kernel layer do not exist in the core plug-in layer, information is fed back to the core plug-in layer if the corresponding data or plug-ins exist, and is fed back to the kernel layer through the core plug-in layer; and if the plug-ins do not exist, the required plug-ins and data are created and managed in the user-defined layer according to the requirement. By the cloud-computing-based plug-in model of the data mining system, an algorithm module can be modified through a cloud platform, and is flexible, a complicated book library is mined through decomposition, high expansibility is achieved, and the secondary development and design of the module are facilitated.

The invention discloses an adjustable core clamp holder comprising a clamp holder cylinder, a rubber sleeve, a core plugging base, and a mobile core plugging base. The clamp holder cylinder being a revolution body has the inside with a cavity structure. The rubber sleeve is used for sleeving a core and a detachable core plug clamped at the two ends of the core. The core plugging base is a connector; one end of the core plugging base is connected with the detachable core plug; and the other end of the core plug is connected with a liquid outlet copper tube bracket. The mobile core plugging baseis arranged in the inner wall of the clamp holder cylinder in a sliding manner and is used for supporting and adjusting the adjacent detachable core plug; and end sockets and end socket pressing capsare arranged at the two ends of the core plugging base and the mobile core plugging base. According to the invention, the rock samples with different diameters and different lengths can be clamped; the time and economic costs are saved; and the sealing performance is good.

The invention belongs to the reformation field of damaged cooling walls of blast furnaces, relating to a pore channel cooling method of a damaged cooling wall of a blast furnace and a device thereof. The damaged cooling wall is independently separated, a metal corrugated flexible pipe are respectively inserted into a water inlet pipe and a water outlet pipe of the cooling wall, the front end of each metal corrugated flexible pipe is blocked by a core plug, metal corrugated flexible pipes with smaller pipe diameters are then inserted in the metal corrugated flexible pipes, the front ends of the flexible pipes are blocked by core plugs, a plurality of pores are arranged on the core plugs, slurry with high heat conduction factor is filled between the cooling wall and the large metal corrugated flexible pipes, cooling water passes through a cavity formed between the large and small metal corrugated flexible pipes, passes through the pore channels of the small metal corrugated flexible pipes and then flows out of the small metal corrugated flexible pipes, and then the cooling effect is achieved. The invention can improve the phenomena that one part of the cooling pore channels of the cooling wall is burnt out or the channels are small, solve the problem of water leakage, ensure cooling intensity, prolong the service life of the damaged cooling wall and solve a thorny problem restricting the production of the blast furnace.

The invention relates to a control valve with a bellows reverse pressure-bearing sealing structure. The control valve comprises a valve body, wherein a sleeve is arranged in the valve body, the sleeve and the valve body are sealed by a valve body gasket, and the sleeve and a valve cover are sealed by a valve cover gasket; a valve core is installed in the sleeve, the valve core is fixedly connected with a valve rod through a screw thread; one end of a bellows is welded with the valve rod and the valve core; the bellows, the valve rod and the valve core are installed in the locating slot of the valve cover and then are welded and fixed; the valve cover and the valve body are connected together by a gland bush by means of a bolt and a nut; the upper end part of the valve cover is provided with a sealed core plug; and the valve rod and the valve cover are sealed by a filler component. The invention has the advantages that the bellows in the valve cover is fixed with the valve rod by welding, and the other end of the bellows is fixed with the valve cover by welding, thus bearing pressure by utilizing inner parts, achieving good sealing effect, avoiding medium leakage in the valve body, ensuring use safety, simplifying structure and reducing production and maintenance cost.

The invention discloses a water purifying shower head capable of switching water ways. The water purifying shower head capable of switching the water ways comprises an outer shell; a switching valve group and a filter element are arranged in the outer shell; the lower end of the outer shell is a water inlet end; a water spraying hole is formed in the outer shell; a water inlet gap is reserved between the outside wall of the filter element and the outer shell; the switching valve group comprises a valve seat, a water distribution valve element and a switching plunger; a plunger guide pipe is arranged into the valve seat; the switching plunger is inserted into the plunger guide pipe; a water distribution valve seat is arranged at the lower end of the valve seat; a water distribution valve core plug is arranged at the lower end of the water distribution valve seat; the water spraying hole is communicated with the plunger guide pipe; a raw water guide pipe is arranged between the outside wall of the water distribution valve seat and the plunger guide pipe; the water inlet end is communicated with the water inlet gap, the raw water guide pipe, the plunger guide pipe and the water spraying hole in sequence to form a raw water way; a seat hole is formed in the upper end of the water distribution valve element, and is communicated with a purified water outlet of the filter element; the water inlet end is communicated with the water inlet gap, the purified water outlet of the filter element, the seat hole and the water spraying hole in sequence to form a purified water way; an end cap plug is arranged at the lower end of the switching plunger.