125 results about "Rupture disc" patented technology

Disclosed is a rupture disc assembly for use in making a temporary seal in a vessel such as a casing string. The rupture disc assembly may include a rupture disc having a side surface that has a shallow angle taper inward towards a bottom surface of the rupture disc, and a mounting apparatus to support the rupture disc so that the rupture disc forms the temporary seal. When a disc working pressure is applied to a top surface of the rupture disc, engagement / force transmission between the rupture disc and the mounting apparatus produces enough radial compression in the rupture disc due to the shallow angle taper to significantly mitigate or cancel tensile stresses thereby avoiding the rupture disc from breaking. The rupture disc may be configured to break when the rupture disc is subjected to a disc working pressure that is greater than the disc rupture pressure, thereby removing the temporary seal. An axial abutment surface feature may be provided which is configured and operable to limit downward axial movement of the rupture disc relative to said disc support mechanism and thus be operable to restrict the amount of compression said tapered wall surface of said disc support mechanism can exert on said at least a portion of said rupture disc when the top surface of the rupture disc is subjected to said hydraulic pressure within the well.

The application provides a delay opening toe sleeve, comprising: a hollow pipe, a lower end of which is configured as a lower joint and is provided with a first communication hole; a sealing sleeve and a communication sleeve sleeved on the hollow pipe, a first annular space and a second annular space being respectively formed between the sealing sleeve, the communication sleeve and the hollow pipe, the communication sleeve being provided with a second communication hole aligned with the first communication hole; a pressure transmission sleeve arranged between the sealing sleeve and the communication sleeve, the pressure transmission sleeve being provided with a pressure transmission hole; a delay medium and a sleeve arranged in the second annular space; a rupture disc assembly arranged in a side wall of the lower joint, a radial outer side of the rupture disc assembly being provided with a gap in communication with the second annular space; wherein the sleeve blocks the first communication hole and the second communication hole in an initial state, and the pressure transmission hole is closed, the delay opening toe sleeve is configured to make the rupture disc assembly break when a wellbore pressure rises to a test pressure value, and to open the delay opening toe sleeve through the sleeve and the delay medium.

A downhole tool is provided, which comprises burst or rupture disc sub for use in wellbore tubing strings is provided. The burst disc sub includes a frangible disc that, in the initial or closed state of the sub, prevents the flow fluids. The sub includes one or more breaking pins that are adapted to apply a radially inward force against the disc one the sub is pressurized, with such force being capable of shattering the disc and thereby place the sub in its open state.

The present invention is characterized in that: a sealing body (30) comprises a rupture disc (31) that is crimped and fixed to an opening (24) via a gasket (34), and a terminal plate (32) that is disposed on the inner surface side of the rupture disc (31) and is electrically connected to the rupture disc (31) at a radially central part; the rupture disc (31) has a valve part (31A) that deforms if the internal pressure exceeds a prescribed threshold value; and in a region radially outward of the valve part (31A), the rupture disc (31) and the terminal plate (32) are joined via an adhesive layer (33) composed of an insulating adhesive.

The invention discloses a pressure testing plug, a pressure testing pipe string, a pressure testing device and a using method. One end of a pressure testing plug base body is a first connecting part, and the other end of the pressure testing plug base body is a second connecting part; an inner cavity communicated with the two ends is formed in the pressure test plug base body; the outer wall of the pressure test plug base body is sleeved with the pressure test sealing ring; the rupture disk is hermetically connected in the inner cavity, and two ends of the rupture disk are blocked; the bearing cylinder is connected into the inner cavity, one end of the bearing cylinder is provided with an opening opposite to the rupture disc, and the other end is blocked; a circulation hole is formed in the side wall of the bearing cylinder and communicates with the inner cavity. The device can solve the problem that the well control risk cannot be controlled in the pressure test process, the treatment difficulty of the well control risk is reduced, the treatment time is shortened, the well control reliability is improved to the maximum extent, and the production safety of a single well is comprehensively guaranteed.

A toe valve system positioned along a tubing string. The toe valve system a piston sleeve slidably disposed in an outer housing which has ports therethrough. The toe valve system comprises a shifting sleeve shiftable between positions with respect to the ports. A piston sleeve initially held in a position closing off the at least one port to prevent flow between the interior and exterior of the tubing string. A compensator sleeve mounted within the outer housing, wherein the compensator sleeve is free floating and can accommodate changes in tubing pressure. A piston chamber filled with a liquid which is located between the piston sleeve, the compensator sleeve and the outer housing. The liquid in the piston chamber is retained by a rupture disk that can release the liquid when sufficient pressure is applied within the toe valve system causing the piston sleeve to move and opening the ports.

This utility model relates to a bidirectional rupture disc safety device, comprising a rotating drum. A second bevel gear is fixedly mounted on the upper surface of the rotating drum. One or more holes are formed on the circumferential surface of the rotating drum. One or more first bevel gears mesh with the upper surface of the second bevel gear. A second fixing rod is fixedly mounted near the surface of the rotating drum, with the center of the second fixing rod and the center of the first bevel gear on the same horizontal plane. A connecting rod is sleeved on the outer surface of the second fixing rod. A lower clamping plate is disposed above the rotating drum. The end of the connecting rod away from the first bevel gear is fixedly connected to the lower inner surface of the lower clamping plate. This bidirectional rupture disc safety device uses pressure changes to drive the clamping plate to move up and down, and the meshing of the bevel gears to drive the rotating drum to rotate. This allows the interior of the pressure vessel to contact the exterior when pressure fluctuates, reducing the frequent application of pressure to the rupture disc, preventing its structural integrity from gradually deteriorating, and reducing the risk of accidental activation.

The utility model discloses a kind of rock breaking devices of self-adaptive ultrahigh pressure gas can be repeatedly automatically released and hole sealing, it is related to gas fracturing technical field, the device includes: fracturer, the both ends of fracturer are respectively provided with first end cap and second end cap, the inside of fracturer is provided with reaction cabin;Pressure-increasing mechanism, is inserted in first end cap, for by the combustion of biomass foam, make reaction cabin internal air pressure rise;Piston assembly, between fracturer and second end cap, for with second end cap cooperation, release gas, to realize rock breaking;Hole sealing mechanism, located at the outside of fracturer, for preventing gas to leak out, to maintain fracturing instantaneous hole sealing integrity;Second end cap, for making gas cluster to spray out.The utility model is balanced by using the gas pressure of reaction cabin and top pressure cabin inside fracturer and the special structure of piston, more efficient completion rock fracturing is realized without installing rupture disc in fracturer and frequently disassembling replacement condition.

This invention relates to the field of oil and gas well development technology, and particularly to a high-energy gas fracturing ultra-high pressure simulation testing device and equipment. The high-energy gas fracturing ultra-high pressure simulation testing device includes a main body, a fracturing test module, and a detection and control module. The main body includes a wellbore, a buffer cylinder horizontally placed at the bottom of the wellbore, and a short connecting cylinder welded to the middle of the buffer cylinder, with the wellbore and the short connecting cylinder fixedly connected. A flange blind plate is installed at the top of the wellbore. The fracturing test module includes a rupture disc and a fracturing gun. The rupture disc is disposed between the wellbore and the short connecting cylinder. The fracturing gun is disposed inside the wellbore. The detection and control module includes an igniter, a pressure sensor, and a control center. The igniter is disposed inside the fracturing gun, which is filled with high-energy material. The high-energy gas fracturing ultra-high pressure simulation testing device provided by this invention effectively improves the reliability of test data, reduces the risk of experiments, and lowers the reconstruction cost of equipment.

The application discloses a cementing multipurpose rubber plug and a cementing tool and method. The cementing multipurpose rubber plug comprises a rubber plug body, a rubber plug rubber body, a striking sleeve, a pin, a rupture disc and a gland. The rubber plug rubber body is sleeved outside the rubber plug body. One end of the pin is inserted into the side wall of the striking sleeve, and the other end is inserted into the rubber plug body. The side wall of the striking sleeve is connected with the rubber plug body through the pin. The rubber plug body is in a cylindrical shape, and the inner cavity of the rubber plug body is provided with the striking sleeve and the rupture disc from top to bottom. The gland is threadedly connected with the rubber plug body. The cementing multipurpose rubber plug can be used in multiple stages of cementing, and can be used as a calibration rubber plug. The accuracy of the measurement of the replacement amount of the slurry can be improved, the problems of the casing plug and the replacement can be avoided, a corresponding solution can be provided for the pipe string buckling caused by the release of the rubber plug before the cement injection, and the cementing operation accidents can be avoided.

The utility model discloses a gas treatment device after gas pressure protection and safety pressure relief of an excimer laser, which comprises a rupture disk device (1) with one end capable of being communicated with a resonant cavity of the excimer laser. The other end of the rupture disk device (1) is provided with a one-way safety valve (2) which can be jacked open by working gas leaked from the resonant cavity when a diaphragm (14) of the rupture disk device (1) is ruptured, and the one-way safety valve (2) is connected with an absorption device (3) which can purify the leaked working gas; and the absorption device (3) is provided with an exhaust port (4) capable of exhausting purified gas. According to the utility model, the structure is simple, external air can be prevented from flowing backwards into the excimer laser, the internal gas is kept pure, the discharged gas is absorbed and purified, so that the discharged gas can reach the emission standard, and the harm to workers and the environment is eliminated.

This invention relates to the field of acephate synthesis and processing technology, specifically to an acephate synthesis and processing equipment and process, including a reaction vessel body. A servo motor is fixedly installed on the top of the reaction vessel body. A feed pipe and a pressure relief valve are provided on the reaction vessel body. A heat-conducting coil is fitted on the outer surface of the reaction vessel body. A manhole and a flange pipe are provided on the reaction vessel body. Before the rupture disc explodes, it will be pressured upwards. Under the action of the stud, it will drive the first driving component to rise, causing the first driving component to drive one end of the pressure rod, causing one end of the pressure rod to tilt upwards. The other end drives the fastening component to move downwards, thereby fastening the fastening component and improving the sealing performance when the pressure inside the reaction vessel body is at its maximum. At the same time, the second driving component will also move upwards, driving the driven component, causing the power rod to drive the locking head to move in the locking direction, thereby causing the locking head and the locking buckle to engage together, achieving an explosion-proof effect.

The utility model discloses a reaction kettle pressure bursting disc quick replacement subassembly relates to the technical field of bursting disc, this reaction kettle pressure bursting disc quick replacement subassembly includes the explosion -proof cylinder, the outer wall of the middle part of explosion -proof cylinder is installed with third fixed ring, the inside of third fixed ring is provided with second recess, the inside of second recess is installed with first clamping pipe, the top of first clamping pipe is installed with first fixed ring, the inside of first fixed ring is provided with first recess, the inside of first recess is installed with bursting disc, the upper portion of first clamping pipe is installed with second clamping pipe, the bottom of second clamping pipe is installed with second fixed ring, the bottom of second fixed ring is installed with annular pressure block, and the scheme has solved the problem that the flange and sleeve are welded fixed in the installation process in the process of using the existing reaction kettle bursting device, resulting in the need to replace the overall structure for replacing the bursting disc subsequently, and the use cost is increased significantly.

The invention relates to the technical field of explosion tests, in particular to an internal impact load simulation system. The system comprises a fixed plate, the surface of the fixed plate is integrated with a plurality of simulation explosion impact load subsystems arranged in an M-row N-column matrix, each simulation explosion impact load subsystem comprises a first chamber, a second chamber and a rupture disk, the rupture disk is located between the first chamber and the second chamber, M and N are positive integers, and the second chamber is a variable cross-section chamber. The method can buffer the impact of the high-pressure medium and guide the air flow to be uniformly diffused.

The invention relates to a water seal device for blast furnace gas diffusion, which belongs to the technical field of blast furnace gas diffusion protection and comprises a water seal tank, a gas inlet pipe, a gas outlet pipe, a rupture disk, a pressure detection component, an overflow component, a water replenishing component, a drainage component, a water level height detection component and a nitrogen purging component. The gas inlet pipe and the gas outlet pipe are communicated with the interior of the water-sealed tank, the rupture disk is arranged on the side of the water-sealed tank and used for relieving pressure, the overflow assembly is used for discharging redundant water in the water-sealed tank, the water supplementing assembly is used for adding water into the water-sealed tank, the pressure detection assembly is used for monitoring the pressure value in the water-sealed tank, and the drainage assembly is used for draining the water in the water-sealed tank. The water level height detection assembly is used for monitoring the height of the water level, and the nitrogen purging assembly is used for discharging blast furnace gas in the water-sealed tank. The water seal device provided by the invention not only can be used as a standby diffusing means to effectively prevent the pipe network from being damaged by overpressure, but also can be synchronously adjusted according to the pressure setting change of the electric diffusing device.

A temperature sensor system for a nitrogen tank with a subsea blowout preventer that monitors temperature of the nitrogen in the tank. It is also contemplated to remove rupture discs and utilize a relief valve, which may be assembled with the temperature sensor system.

The invention discloses a liquid carbon dioxide phase change fracturing system based on a self-regulation temperature control module, and belongs to the technical field of carbon dioxide phase change fracturing. The system comprises a liquid storage cavity, the self-regulation temperature control module, a two-stage safety pressure relief assembly and a release pipe; the self-regulation temperature control module comprises a flexible heating sheet, a temperature and pressure sensor and a temperature control sensor; an MCU is arranged in the temperature control sensor, and the MCU realizes three-stage temperature and pressure closed-loop regulation and control through a PID algorithm; the two-stage safety pressure relief assembly is composed of a constant-pressure rupture disc and an electromagnetic pressure relief valve and is in linkage with a multi-parameter monitoring signal to achieve abnormal pressure relief. According to the liquid carbon dioxide phase change fracturing system based on the self-regulation temperature control module, the problems that in the prior art, heating precision is low, safety protection is insufficient, and reusability is poor are solved, and the liquid carbon dioxide phase change fracturing system has the advantages of being accurate in temperature control, safe, reliable and low in cost and is suitable for fracturing operation of multiple scenes such as coal mines, metal mines and urban tunnels.

The present application belongs to the technical field of oil and gas downhole operation equipment, and discloses a differential pressure remote control downhole plugging valve capable of being tied back, which comprises an outer cylinder, a shear spindle, an upper rupture disc and a lower rupture disc, the top end of the outer cylinder is detachably connected with a hand-off assembly or a tie-back assembly, and the bottom end of the outer cylinder is provided with a ball valve assembly; the outer cylindrical surface of the shear spindle is provided with a first boss and a second boss at intervals, and the area of the upper acting surface of the first boss is greater than the area of the lower acting surface of the second boss; after the lower rupture disc is broken, the annular space pressure drives the shear spindle to move upward, and the ball valve assembly is closed; after the upper rupture disc is broken, the annular space pressure forms a pressure difference between the upper acting surface of the first boss and the lower acting surface of the second boss, the shear spindle moves downward under the action of the pressure difference, and the ball valve assembly is opened. The present application can form a pressure difference on the shear spindle through the annular space pressure to remotely control the shear spindle to move so as to open or close the ball valve assembly, which is beneficial to rapid layer conversion operation.

The utility model provides a device of protecting rupture disc of combustion system, including flange subassembly, heat preservation subassembly and rupture disc, flange subassembly includes detachable connection's mounting and upper flange, and mounting includes installation pipe and lower flane, and lower flane fixedly arranged on installation pipe upper end pipe orifice, and lower flane is the round sheet with through -hole being arranged in the middle, and the through -hole aperture is same with installation pipe inner diameter, upper flange is detachable with lower flane and is connected together, and rupture disc is clamped between upper flange and lower flane, heat preservation subassembly includes heat preservation basket and heat preservation cotton, and heat preservation cotton is arranged in heat preservation basket inside, heat preservation basket is detachable and is assembled in installation pipe, and heat preservation basket upper end is arranged in installation pipe, and heat preservation basket lower end stretches out from installation pipe lower end pipe orifice.

The invention discloses a pump open type safety valve device and a using method thereof. The pump open type safety valve device comprises a first connecting component, an upper cylinder sleeve, a connecting joint, a lower cylinder sleeve and a second connecting component to form an outer sleeve, an upper mandrel and a lower mandrel are arranged in the outer sleeve, a fixing sleeve is installed between an inner cavity of the lower cylinder sleeve and the outer portion of the lower mandrel, and the fixing sleeve is connected with the connecting joint through a protrusion. The other side of the fixing sleeve is in threaded connection with the inner side wall of the valve plate outer cylinder, a valve seat body and a valve seat nut are installed in a gap formed by the valve plate outer cylinder and the lower mandrel and are in threaded connection, one end of the valve seat body is connected with the valve plate through a connecting piece, and an elastic connecting piece is arranged at the connecting position of the valve plate and the valve plate outer cylinder. And a rupture disk device is mounted on the connecting joint. The pump open type safety valve device solves the problems that an existing testing tool cannot be opened again after being closed, circulating well killing cannot be achieved if oil gas exists in a shaft, and the well control risk exists in the pipe column operation of the testing tool.

The present application relates to a kind of bridge plug with self-sealing capability, including setting structure, bridge plug body and rupture disc structure, setting structure is arranged in the upper end of bridge plug body, and setting mechanism can move downward along the axial direction of bridge plug body, the bottom end of bridge plug body is equipped with rupture disc structure, and rupture disc structure realizes the self-sealing of bridge plug.The present application realizes bridge plug self-sealing and rapid unsealing, effectively solves the problems of wellbore plugging and rapid unsealing when production string is run in production, has the advantages of fast sealing establishment, unsealing, high sealing performance, convenient operation, safety, reliability and good economy.

The application provides a self-unblocking drillable floating collar, relates to the technical field of drilling, and is used for full-bore floating casing operation. The floating collar is installed at the bottom of a casing string, realizes the sealing of the bottom of an air section of the floating casing, and prevents the fluid in a well from entering the casing. After the casing is lowered into a designated position in the well, the well mouth is pressed to break the rupture disc, the broken pieces of the rupture disc enter the outer cylinder along with the drilling fluid, the small broken disc pieces normally pass through the filter screen, the large broken disc pieces are concentrated on the bearing screw, the drilling fluid and the small broken disc pieces impact the valve core head, the elastic assembly is in a compressed state, a gap is formed between the valve core head and the valve seat to form a flow channel, the drilling fluid and the small broken disc pieces flow along the flow channel, and when the pump is stopped, the large broken disc pieces slide onto the inner wall of the outer cylinder under the action of gravity, and the floating collar is self-unblocked.

The present application relates to the technical field of rupture disc processing, and provides a forming process for indentations and weak grooves on a reverse-arched rupture disc, which can change the overall rigidity of the structure during forming, has high forming efficiency and low waste rate, and comprises the following steps: 1) a material selection and size design step of a flat plate-shaped rupture disc; 2) a forming step of blowing and forming the flat plate-shaped rupture disc into a reverse-arched rupture disc through a blowing and forming die; 3) a processing step of weak grooves on the reverse-arched rupture disc; and 4) a step of installing the reverse-arched rupture disc on a blasting test device to perform a blasting test, wherein the flat plate-shaped rupture disc in the step 2) is blown and formed into a reverse-arched rupture disc through a blowing and forming die, and at least one indentation is formed on the surface of the reverse-arched rupture disc at the same time.

The invention discloses a rupture test method, system and device for a rupture disk in a hydrogen environment, and relates to the technical field of material physical property test.The method comprises the steps that sweeping and blowing gas is introduced into a controlled test pipeline, and when monitoring data is lower than a threshold value, hydrogen is introduced into the controlled test pipeline; controlling the temperature of the test cavity to reach a preset temperature value and pressurizing the hydrogen to a preset target pressure value; the hydrogen pressure is obtained in real time; the pressure rise rate is controlled through a preset compound control algorithm; hydrogen concentration data are obtained in real time, and pressure change characteristics are analyzed; and when the hydrogen concentration data exceeds a threshold value or the pressure change characteristic conforms to the blasting judgment characteristic, a safety interlocking instruction is executed. According to the invention, through graded pressurization and pressurization rate closed-loop control, the problems that the blasting performance test cannot be carried out in a hydrogen environment and the hydrogen blasting performance of the rupture disk cannot be accurately tested and evaluated in the prior art are solved, and the blasting performance test and evaluation of the hydrogen blasting disk in a simulated real environment are realized.

The present application relates to oil and gas field downhole fracturing tool technical field, specifically to a kind of pressure difference sliding sleeve and method for use, pressure difference sliding sleeve includes the upper joint, cylinder sleeve, lower joint connected in sequence, center tube is arranged in the cylinder sleeve, the center tube and cylinder sleeve form sealed hydraulic drive cavity, piston is arranged in the sealed hydraulic drive cavity and slides axially, the cavity wall of sealed and sealed hydraulic drive cavity sealing cooperation, shear pin is fixedly arranged on the center tube and / or cylinder sleeve, the piston is axially fixed by shear pin, the first flow-through hole and the second flow-through hole are respectively opened in the cylinder sleeve and center tube at piston, the piston is closed between the first flow-through hole and the second flow-through hole, threaded through-hole is opened on the center tube, the threaded through-hole is communicated with sealed hydraulic drive cavity, rupture disc is fixedly arranged in the threaded through-hole.The present application can realize sliding sleeve full-automatic opening by only pressing in wellhead pipe, without auxiliary operation such as ball.

Disclosed is a rupture disc assembly for use in making a temporary seal in a vessel such as a casing string. The rupture disc assembly may generally include (A) a rupture disc having a side surface having a shallow taper inward towards a bottom surface of the rupture disc (B) an actuating mechanism including (i) an outer sled having an inner supporting surface forming a taper complimentary to the shallow taper of the side surface, (ii) an inner sled disposed within the outer sled and having a support shoulder to support the bottom surface of the rupture disc and (iii) a securing mechanism and (C) a housing to house the rupture disc and actuating mechanism.

The invention discloses a well cementation rubber plug for a seabed oil well, and relates to the technical field of well cementation rubber plugs, the well cementation rubber plug comprises a first upper rubber plug, a first rotating assembly is arranged below the first upper rubber plug, a second upper rubber plug is installed below the first rotating assembly, and a first lower rubber plug is arranged below the second upper rubber plug; a first rotating assembly is arranged below the first upper rubber plug, a second rotating assembly is arranged below the first lower rubber plug, a second lower rubber plug is arranged below the second rotating assembly, a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring are arranged on the outer sides of the first upper rubber plug, the second upper rubber plug, the first lower rubber plug and the second lower rubber plug correspondingly, and a cavity is formed in the fourth sealing ring; a first pressing rod is installed in the second upper rubber plug, and a second pressing rod and a rupture disc are installed in the second lower rubber plug. The well cementation rubber plug solves the problems that an existing well cementation rubber plug cannot adapt to a bent section of a casing pipe and cannot accommodate a scraping and cleaning part to enhance the sealing performance after moving downwards to a proper position.

A test assembly 100 for a rupture disc comprises a disc holder 112, a clamp member 114, opposite the rupture disc from the disc holder, constrains the rupture disc in an axial direction. A heater asse

The application discloses a kind of hydrogen environment under rupture disc burst test method, system and device, it is related to material physical property testing technical field, the method includes: to the controlled test pipeline is admitted to sweep and blow gas, when monitoring data is lower than threshold value, to the controlled test pipeline is admitted to hydrogen;Control the temperature of test cavity reaches preset temperature value and pressurize hydrogen to preset target pressure value;Real-time acquisition hydrogen pressure;Pressure rising rate is controlled by preset composite control algorithm;Real-time acquisition hydrogen concentration data, analyze pressure variation characteristics;When hydrogen concentration data exceeds threshold value, or when pressure variation characteristics meet burst judgment characteristics, execute safety interlock instruction.The application solves the problem that the prior art cannot carry out burst performance test under hydrogen environment by staged pressurization and pressure rising rate closed-loop control, and simultaneously cannot accurately test and evaluate the hydrogen blast performance of rupture disc, realizes the burst performance test and evaluation of hydrogen rupture disc in simulated real environment.