30results about How to "Suitable for a wide range of pressure" patented technology

The invention belongs to the field of oil gas and oil well development, discloses a system for sampling and monitoring components of shaft fluid of a gas field and particularly relates to a system for sampling and monitoring components of the shaft fluid of the gas field and a sampling and analysis method thereof, which are designed aiming at environmental characteristics of a H2S/CO2-containing gas field. A sampling process of a sampler of a gas well is safer, an experimental process is more accurate and quicker, and the application pressure range is wider and safer, and an experimental result of researching the change of high-content hydrogen sulfide gas components is more accurate; and a device is safe and reliable. Through the system and the method, the problems that fluid pressure cannot be obtained and fluid deposit in the shaft cannot be predicted because the measurement cannot be performed in the gas field containing high content of H2S/CO2 can be solved and theoretical basis is provided for a gas well capacity design, production parameter optimization and the formulation of technical measures.

The invention belongs to the field of development of oil and gas wells, and relates to a wellhead sampling device, in particular to a wellhead sampler designed for the characteristic of gas field environment containing high content of H2S/CO2, and a sampling system thereof. The sampling device comprises a sampling valve, a sampling bottle and a pressure reducing valve, wherein two ends of the sampling bottle are in threaded connection with the sampling valve; the external connection of the sampling valve is external-thread clamping sleeve type connection; the pressure reducing valve is used for carrying out pressure reduction and sample injection on high-pressure gas in the sampling bottle; the pressure reducing valve comprises an outer conveying sample injection port which is connected with an outer detector; and the outer conveying sample injection port is a clamping sleeve type connection port so as to eliminate dead angles of pipelines. In the invention, the field sampling for analysis is achieved, the result of experimental analysis has good consistency, the device is safe and reliable, and the corrosion resistance to H2S/CO2 is strong. In the gas field sampler disclosed by the invention, the sampling process is safer, the experimental process is more precise and faster, the applicable pressure range is wider, and more safety is achieved.

The invention provides an excellent-quality steel bar controlled rolling and cooling method and belongs to the technical field of rolled steel production controlled rolling and cooling. The specific technological process comprises the step that controlled rolling and cooling of bars with the specification of the diameter being 12-70 mm adopts short cooling, I section short temperature resetting, short cooling, II section long temperature resetting, short cooling, interrupt cooling and temperature resetting circular control technology. Short cooling adopts a water cooling manner, I section controlled cooling, II section controlled cooling and III section controlled cooling adopt the short cooling manner, and the length of a cooler ranges from 500 mm to 1000 mm. Pressure of cooling water ranges from 0.5 MPa to 1.5 MPa, temperature resetting adopts an air cooling manner, the I section short temperature resetting length is 1000-1800 mm, and the II section long temperature resetting length is 2400-3600 mm. According to the method, on the basis of meeting mechanical performance of bars, the problem that in the traditional controlled rolling and cooling technology, a deeper quenched layer is generated on the surface layer is solved, generation of the quenched martensitic structure of the surface layer is effectively avoided, control over organization types is achieved, meanwhile, better uniformity of the surface layer and heart temperature is ensured, and the surface layer and heart temperature difference is smaller than or equal to 50 DEG C.

The invention provides a determination method of a mechanical denudation rate of a carbon/carbon composite material. The determination method comprises the following steps: (1) combining utilizing a fiber ablation typical shape with and flow field parameters to obtain a result of fiber force analysis; (2) combiningutilizing the fiber force analysis result, a fiber strength and fracture criterion by utilizing a fiber force analysis result to obtain critical fracture height of fibers; (3) combining an evolution law of a fiber shape and analyzing the denudation frequency of the fibers by using an evolution law of a fiber shape; (4) realizing the calculation of the volume denudation rate of the single fiber by utilizing the critical fracture height and denudation frequency of the fibers; (5) calculating a denudation factor of the single fiber according to the volume denudation rate of the single fiber; (6) calculating the denudation factor of the material by combining utilizing the denudation factor of the single fiber with the volume fraction of the fibers in the material.

The invention provides a high-strength magnesium aluminum silicate proppant and a preparation method thereof. The preparation method comprises the following steps: respectively drying, crushing and roasting a raw material containing serpentine minerals, fly ash and coal gangue to obtain powder of the three materials; mixing and grinding the powder of the three materials and an auxiliary agent to obtain mixed material powder; granulating the mixed material powder to obtain a spherical granular green body; and drying and sintering the spherical granular green body to obtain the high-strength magnesium aluminum silicate proppant. The diameter of the high-strength magnesium aluminum silicate proppant ranges from 106 microns to 3350 microns, the sphericity and the roundness are not lower than 0.9, the volume density is 1.3-1.8 g/cm<3>, and the breakage rate under the closing pressure of 86 MPa to 103 MPa is smaller than or equal to 9%. The high-strength petroleum fracturing magnesium aluminum silicate proppant is produced by taking the rock, the barren rock and the tailings which mainly contain serpentine as raw materials, so that resource utilization of various solid wastes is realized.

The invention discloses a reusable electric explosion valve. The reusable electric explosion valve comprises a shell, a valve ball enabling fluid to be output, a transmission mechanism controlling thevalve ball to rotate, a piston driving the electric explosion valve to be opened and an igniter pushing the piston to move are fixedly mounted in the shell from bottom to top, the valve ball is mounted in a fluid channel of the shell, the upper end of the valve ball is connected with the transmission mechanism, the upper end of the transmission mechanism is connected with the piston, and the igniter is arranged at the upper end of the piston and mounted on the upper portion of the shell. According to the reusable electric explosion valve, after the ignition device detonates, the internal structure of the electric explosion valve is not damaged, the electric explosion valve can be reused, meanwhile, the fluid passing through the electric explosion valve is not contaminated, and the reusable electric explosion valve has the beneficial effects of being simple in structure, good in economical efficiency, small in size, light in mass and the like.

The invention relates to a guide rail type separated fluid connector which comprises a plug, a socket, a pin type pipeline, a hole type pipeline and a guide rail, wherein the plug comprises a connecting sleeve and a pull sleeve; rollers are arranged on the pull sleeve; an inclined surface for enabling the rollers to move up is arranged on the guide rail; the socket comprises a housing and a positioning sleeve; a steel ball is arranged on the positioning sleeve; a groove matched with the steel ball is formed in the connecting sleeve; the plug moves up on the guide rail along the inclined surface by virtue of the rollers to pull the pull sleeve to move up; and when the steel ball is extruded from the interior of the groove, the plug is automatically separated from the socket. The guide railtype separated fluid connector has the advantages that by arranging the rollers and the guide rail, when an elastic body is launched, the rollers on the plug are matched with the inclined surface of the guide rail, and move up along the guide rail; when the rollers on the plug are lifted to the certain height, the steel ball is separated from the interior of the groove, so that quick unlocking ofthe plug and the socket is realized; and after unlocking, the plug is separated from the socket, so that the guide rail type separation is realized, and the reliability of the separated pipeline is ensured.

The invention provides a pressure relief electric explosion valve. The pressure relief electric explosion valve comprises a shell assembly, a piston, a snap ring, a pressure relief pipe device and anigniter. The piston is mounted in the shell assembly. The tail of the piston is fixed through the snap ring to prevent relative movement between the piston and the shell assembly. The igniter is mounted at the tail end of the shell assembly. The shell assembly comprises a shell and a diaphragm. During operation, the igniter pushes the piston to break through the diaphragm to enable fluid to get into the shell. The pressure relief pipe device comprises a steel ball, a spring, a fixed support, a connecting rod, a baffle and a pressure relief shell. When the fluid pushes the steel ball at a certain pressure, the steel ball and the baffle are in linkage to enable part of fluid passes through the steel ball and the baffle to go into an inner cavity of the pressure relief shell. The higher the flow rate of the fluid is, and the less the flow of ingoing fluid is. The output pressure is reduced, and the pressure reduction effect is achieved. When the flow rate of the fluid is slowed down, theflow of the fluid is increased, the output pressure is increased, and the pressure control effect is achieved. The pressure relief electric explosion valve is simple in structure and good in economy and has the characteristics of being small in size, light in weight and the like.

The invention discloses a continuous ultrasonic separation sampling device and method for full-component oil gas with dust under pressure. The separation sampling device comprises a full-component oilgas recovery unit, an ultrasonic separation unit and a solvent recycling unit; the full-component oil gas recovery unit comprises an oil gas washing system and a light oil recovery system, so that recovery of light and heavy oil of the full-component oil gas and gas sampling are completed. The ultrasonic separation unit comprises an ultrasonic separator, a solid collecting tank, a liquid collecting tank and a full-component oil collector and is used for achieving the complete separation of the full-component oil and dust and the collection of the full-component oil. The sampling device is organically coupled with an ultrasonic separation system through a special oil-gas collection process, so that collection and sampling of full-fraction light and heavy oil in various high-temperature andhigh-pressure process gases are ensured, sampling accuracy and representativeness are ensured, the process is flexible, the adaptability is high, and the effects of high efficiency, energy conservation and environmental protection are achieved.

The invention discloses a high-temperature-resistant self-sealing gas cylinder comprising an inner container, a composite material winding layer, an elastic layer and a heat insulation layer from inside to outside, the inner container comprises an inflation and deflation connector part at the front end and an inner container body, and the inner container body and a shell of the inflation and deflation connector part at the front end are connected in a welded mode to form the inner container; the inflation and deflation connector part comprises a spring, a valve element, a piston and a rubber ring, one end of the spring is installed in a clamping groove in the inner container body, the other end of the spring is connected with the valve element, the valve element is pressed against the inclined face of the shell of the inflation and deflation connector at the front end of the inner container through elastic force of the spring, and the non-outlet conical face end of the piston makes contact with the valve element. The valve element is pushed to move through the movement of the piston. According to the high-temperature-resistant self-sealing gas cylinder, the gas cylinder can work in a high-temperature environment, and the high-temperature-resistant self-sealing gas cylinder has the characteristics of being simple in structure, good in economical efficiency, small in size, light in weight and the like.