304results about How to "Easy to inject" patented technology

The invention discloses an asphalt base composite material for pavement crack repair. The asphalt base composite material for pavement crack repair is prepared from a component A and a component B, wherein the component A comprises the following raw materials in parts by weight: 120-150 parts of anionic emulsified asphalt, 1-3 parts of water reducing agent, 1-3 parts of defoaming agent, 3-8 parts of binder and 0-10 parts of water, and the component B comprises the following raw materials in parts by weight: 100 parts of cement, 70-110 parts of sand and 0.01-0.06 part of expanding agent. The asphalt base composite material for pavement crack repair has the flexibility of asphalt, the rigidity of cement and certain strength, is used for crack pouring and can bear and transfer loading force; the binder is added to the material so as to play a role of reinforcing the binding force between the material and crack walls, so that the service life of a pavement is prolonged, and the re-cracking phenomenon is difficult to occur. The asphalt base composite material for pavement crack repair has the advantages of low cost price, simple construction, low requirements on constructors, low energy consumption, low cost, strong binding power and long useful life and can be widely applied to the pavement crack repair.

The invention provides a phase change fracturing method. The method includes the following steps that a fracturing fluid is injected into a stratum to generate cracks in the stratum, and injection ofthe fracturing fluid is stopped after the to-be-generated cracks reach preset requirements; a phase change reaction liquid and a time delay heat generating agent which can be subjected to a phase change reaction at preset temperature are injected into the stratum; after injection of the phase change material liquid is substantially completed, the time delay heat generating agent exerts a heat generating action to make phase change of the phase change material liquid to complete phase change fracturing. According to the provided technical scheme, since there is no solid phase injection, not only can the friction resistance of tubular columns be effectively reduced, but also the happening time and progress of the phase change reaction can be effectively controlled due to the use of the delayheat generating agent, so that a better fracturing effect is achieved. Especially for low-temperature reservoirs, a heat generation effect of the delay heat generating agent greatly increases the rate of the phase change reaction so that the phase change material liquid can rapidly form a solid phase at a preset position, the phase change time is shortened, and the probability of successful construction is increased.

The invented optical fiber is formed through covering fiber core by first cladding, covering first cladding by second cladding, and covering second cladding by protection layer. Pores are possibly existed in center of the fiber core, between the fiber core and first cladding, in first cladding, and in second cladding. Fiber core is adulterated by rare earth ions. Comparing with traditional rare earth doping optical fiber, the first cladding of the invented optical fiber possesses larger numerical aperture. Thus, pump light is easier to be injected into first cladding so as to increase output power. The invention improves performances of optical fiber.

A method and device are disclosed for temperature manipulation of a melt even with conductivity below 10<-1> O <-1>cm<-1>, thus permitting refining of the melt at temperatures above 1700 DEG C. According to the method for temperature manipulation of a melt (16), in particular, in a refiner unit, the melt (16) is heated at least by ohmic resistance heating, at least two electrodes (4) are arranged in the melt (16) and at least a part of the melt (16) is cooled. The device (1) for temperature manipulation and/or refining and/or purification and/or homogenisation of a melt (16) comprises at least one arrangement for accommodating melt material (36, 16), defining an inner chamber and at least two electrodes (4) for ohmic resistance heating of the melt (16), wherein the electrodes (4) project into the inner chamber of the arrangement in particular of the vessel (2).

The invention relates to a preparation method of a polymer weak gel deep profile control agent. The preparation method comprises the following steps of preparing sodium carboxymethyl cellulose and distilled water into sodium carboxymethyl cellulose water solution of which the mass percentage is 1%-2%; adding acrylamide of which the mass is 2-8 times as great as that of the sodium carboxymethyl cellulose into the sodium carboxymethyl cellulose water solution, and then adding a cross-linking agent which accounts for 0.01%-2% of the total weight of the sodium carboxymethyl cellulose and the acrylamide; enabling nitrogen to enter into a closed system and isolating the air, and adding an initiating agent which accounts for 1%-2% of the total mass of the sodium carboxymethyl cellulose and the acrylamide; and discharging after carrying out constant-temperature reaction for 4-12 hours under the temperature of 30-60 DEG C. According to the preparation method disclosed by the invention, the acrylamide is grafted to the sodium carboxymethyl cellulose, polymer weal gel with a mesh structure is formed under the action of the initiating agent and the cross-linking agent, and a polymer weak gel system integrates the advantages of the sodium carboxymethyl cellulose and the acrylamide.

The invention relates to a method for preparing a polysaccharide biogum polymer gel profile control agent. The method includes the steps that polysaccharide biogum is dissolved in distilled water for allocating a solution, a monomer and a cross-linking agent are added into the solution, nitrogen is led in, the air is isolated, then an initiating agent is added, and the profile control agent is obtained through thermostatic reaction. The method for preparing the polysaccharide biogum polymer gel profile control agent has the advantages that the cost of raw materials is low, and the raw materials are wide and capable of being obtained easily; various properties such as gelling time, gelling strength, the mobility after gelling, temperature resistance and salt resistance of the profile control system can be controlled by changing the concentration of the polysaccharide biogum, the monomer, the cross-linking agent and the initiating agent in the reaction system or by changing the type and the initiating system of the cross-linking agent; certain mobility is achieved, the profile control agent can be injected under the shaft easily, and a high permeability layer in the stratum can be effectively plugged; the strength is good, and the method is suitable for oil deposit with the formation temperature being below 150 DEG C; the method is suitable for high-salt oil deposit.

The invention relates to a polysaccharide macromolecular paramagnetic metal complex and a synthesis method and an application thereof. Polysaccharide macromolecules are used as carriers, and a ligand compound, the side chains of which contain open-chain or annular polyamino polycarboxylic compounds, acts with paramagnetic metal ions to form the paramagnetic metal complex, wherein the paramagnetic metal ions are positive divalent or trivalent ions of metal elements, the atomic numbers of which are 21-29, 42 and 44 or 57-71. The polysaccharide macromolecular paramagnetic metal complex can be used as a magnetic resonance imaging contrast agent for lymphatic organs, lymphatic vessels, lymphatic systems and cardiovascular systems of people or other mammals.

The invention relates to a physical simulation huff-puff production experimental method and device. The method is characterized by comprising the steps that 1, a core model for an experiment is vacuumized; 2, simulation formation water is sucked into the core model till the core model absorbs water to reach saturation; 3, crude oil is injected into the core model till no simulation formation water is drained out of the core model; 4, according to the solution gas-oil ratio data of a target oil field to be measured and core model output simulation formation water volume, the volume of gas needing to be injected into the core model is worked out; 5, the gas is injected into the core model; 6, huff-puff fluid is injected into the core model, the core model is closed, and a soaking process is simulated; 7, after experiment time is up, the core model is opened for huff-puff fluid and crude oil spurt, and one-time physical simulation huff-puff production experiment is completed. Experiments in different huff-pull ways can be carried out, influence effects of different injection parameters or parameter quantized comparison effect data, and a reliable evaluation platform is provided for thickened oil field exploitation in different huff-puff ways.

The invention relates to a method for preparing an environmental-friendly type gel profile control agent. The method comprises the following steps: completely dissolving a monomer A, a cross-linking agent and a monomer B by using distilled water, adding an initiator, and performing polymerization reaction at 20-80 DEG C in the atmosphere of sealing nitrogen so as to form prepolymer; subsequently completely dissolving polyving alcohol by using distilled water, adding an obtained polyving alcohol solution, the cross-linking agent and the initiator into the prepolymer, and continuously reacting at 50-80 DEG C in the atmosphere of sealing nitrogen till the reaction is completed, thereby obtaining the environmental-friendly type gel profile control agent. The environmental-friendly type gel profile control agent has the advantages that firstly, the raw materials are low in cost and easy to obtain, the production cost can be greatly lowered, and the environment is not polluted; secondly, the viscosity of the system and the property of the formed gel can be controlled; thirdly, the agent can be easily filled into a well, a high permeation layer in stratum can be effectively blocked, and thus a purpose of water shut-off and profile control is achieved; and fourthly, the agent is relatively good in stability.

The invention discloses an organic light emitting device, which comprises a glass substrate, an anode, a hole injection layer, a hole transmission layer, a light emitting layer, an electron transmission layer, an electron injection layer, and a cathode stacked in sequence, wherein the hole injection layer comprises a graphene oxide layer and a metallic oxide layer. The hole injection layer has a two-layer structure, the original hole injection barrier is separated into two parts, the hole firstly jumps into the graphene oxide layer from the anode and then jumps into the metallic oxide layer form the graphene oxide layer, and the hole is finally injected into the hole transmission material from the metallic oxide layer, and therefore, starting voltage of the device is reduced, and the light efficiency is improved. The invention also discloses an organic light emitting device manufacturing method. Graphene is adopted as raw material, the graphene oxidation process can be realized in a simple oxidation method, and the preparation method is simple.

The invention relates to a plugging agent and specifically relates to a water glass inorganic gel plugging agent as well as preparation and using methods thereof. The product comprises the following components in percentage by weight: 10-40% of water glass, 0.1-0.3% of polyacrylamide, 0.1-0.2% of sodium dodecyl benzene sulfonate, 0.1-0.3% of aluminum dihydrogen phosphate, 1-6% of N, N-dimethylformamide and the balance of water. The preparation method comprises the following steps: adding the water into a container, opening a stirring device, adding the polyacrylamide, curing for 10-15min, then sequentially adding the sodium dodecyl benzene sulfonate, the aluminum dihydrogen phosphate, the N, N-dimethylformamide and the water glass, stirring for 5-10min when one material is added, and continuously stirring for 10-15min after the end of adding of all the materials to obtain the water glass inorganic gel plugging agent. Compared with the prior art, the water glass inorganic gel plugging agent can be used for high-temperature and medium and low-permeability oil deposits, and has the characteristics of low initial viscosity and easiness in injection.

The invention discloses a snowflake beef processing method. The processing method comprises technological steps as follows: a frozen beef raw material is unfrozen; beef tallow is refined; an auxiliary material and an injection are prepared; the raw material is subjected to injection and then is cooled; and snowflake beef is obtained after quick freezing. With the adoption of the method, efficient industrial and standardized production of the snowflake beef is realized, the quality stability is improved, and unification of product taste is guaranteed; the injection containing the refined beef tallow is injected into the beef, so that the fat content, the taste, the flavor and the hot-processing property of the beef are improved.

The invention relates to a manufacturing method for a composite hub. The manufacturing method comprises the following steps that a reinforced fiber perform is manufactured in advance; a sealed die cavity is filled with the reinforced fiber perform, and then is vacuumized; a resin system is injected in the die cavity with compressed air; and the composite hub is obtained after curing. The resin system is injected in a die with the compressed air, and pressure is maintained for a certain time after injection is completed, so that the acceptable volume content of a reinforced material is increased, the purpose that the volume content of the reinforced material is controllable is achieved, and the mechanical strength of the hub is controlled and improved. The composite hub, manufacturing according to the manufacturing method, is extremely low in void ratio and high in fiber content, fibers are uniformly distributed in a composite material structure, without folds, and since the perform is manufactured in a blocked manner, a complex product is split into simple components, the production efficiency is high, and the quality is controllable and stable.

The invention provides a split-gate flash memory unit and a forming method thereof. The split-gate flash memory unit comprises a semiconductor substrate, a source line polycrystalline silicon layer which is located on the surface of the semiconductor substrate, a source electrode which is located in the semiconductor substrate aligned to the source line polycrystalline silicon layer, a coupling oxide layer and a floating gate which are sequentially located on the semiconductor substrate surfaces at two sides of the source polycrystalline silicon layer, a side wall medium layer which is used for electrically isolating the source wire line polycrystalline silicon from the coupling oxide layer and the floating gate, a coupling oxide layer which is located on the side wall of the floating gate far away from the source line polycrystalline silicon layer, an epitaxial layer which is located on the surface of the semiconductor substrate at one side of the coupling oxide layer far away from the source line polycrystalline silicon layer, tunneling oxide layers which are located on the surface of the epitaxial layer and on the side wall of the side medium layer far away from the source line polycrystalline silicon layer, word line polycrystalline silicon layers which are located on the surfaces of the tunneling oxide layers, and drainage electrodes which are located in the epitaxial layer at one side of the word line polycrystalline silicon layer far away from the floating gate and the semiconductor substrate. With the adoption of the split-gate flash memory unit provided by the invention, the programming efficiency of the split-gate flash memory unit can be improved and the miniaturization is easy to realize.

In order to improve the resection efficiency, operability, and safety of endoscopic mucosal resection operations, a method has conventionally been employed wherein a cushioning agent such as physiological saline is injected into the layer below the area designated for resection, causing the lesion to lift and protrude (hereafter simply referred to as "protrusion"), after which the lesion is removed. It is difficult to accurately remove the intended area using conventional cushioning agents because applying pressure to the protrusion tends to cause deformation thereof, the degree of protrusion is low, and the cushioning agent diffuses immediately after injection into the peripheral tissue, thereby causing the protrusion to disappear. The present invention solves these problems by employing a polysaccharide having a pseudoplastic viscosity such as xantham gum, carrageenan, gellan gum, guar gum, locust bean gum, sacran, or the like as a cushioning agent.

The invention discloses a temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of a natural geothermal field. The temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of the natural geothermal field comprises the steps that (1) the horizon of a reservoir needing temporary plugging is determined, and whether the reservoir needing temporary plugging is a crack or hole is determined; (2) the diversion plugging strength of the temporarily plugged reservoir is larger than or equal to the difference between the maximum principle stress and the minimum principal stress of the stratum is determined; (3) the plugging capacity of the horizon of the temporarily plugged reservoir and the crack or the hole are testedthrough flowing experiments of a core and the crack or pipe flow, and the use amount of a temporary plugging diversion system is worked out; (4) according to the distribution curve of the temperatureof liquid in an oil pipe in a shaft, the peak of bottom hole temperature is obtained; (5) an appropriate temporary plugging diversion system is determined; (6) the use amount of displacing liquid is determined, wherein the use amount of the displacing liquid is larger than or equal to the sum of the volume of the shaft and the volume of a liquid infusion pipeline; (7) site operation is organized.According to the temporary plugging diverting method for achieving liquid-solid-liquid phase conversion by means of the natural geothermal field, liquid is infused into the plugged reservoir, the plugged rack and the plugged hole to achieve effective plugging, liquid-solid-liquid change is achieved by means of the natural geothermal field, the requirements of the temporary plugging diversion technology are met, extra addition of gel breaker is not needed, and the application range is wide.

The invention discloses an efficient water injection method and device of a hydraulic fracture permeability increase auxiliary coal seam. Before coal seam static pressure water injection, high pressure water generated by an emulsion pump is injected into a drilled static pressure water injection drilled hole through a high pressure pipeline, high pressure water is injected into a coal body fracture by means of the cutting and fracturing effect of a water wedge generated by the high pressure water on the coal seam on the periphery of the drilled hole to overcome the minimum principal stress and the anti-fracture pressure of the coal body, so that fractures are broadened, extended and communicated; in the fracturing process, quartz sand is added into the high pressure water, the quartz sand enters the fractures along with the high pressure water, the effect of a supporting agent is achieved, and the water injection drilled hole is connected to a static pressure pipeline to perform static pressure water injection on the coal seam after hydraulic fracturing is finished. Before static pressure water injection is performed, the breathability of a water pre-injection coal seam is increased, so that the coal seam water injection speed is increased, and the water injection efficiency and effect are improved. According to the method, no special emulsion pump is needed, the running time of the emulsion pump is short, the drilling construction work amount can be decreased, and the water injection working efficiency is improved.

The invention discloses a hydraulic roller crusher which comprises a mechanical main body, a first operation surface, a second operation surface, a pair of first roller crushing operation surfaces, apair of second roller crushing operation surfaces, hydraulic driving equipment, hoppers and a control device, wherein the mechanical main body can support or contain all mechanical devices; the firstoperation surface and the second operation surface are installed on the mechanical main body; the pair of first roller crushing operation surfaces are installed on the first operation surface; the pair of second roller crushing operation surfaces are installed on the second operation surface; the hydraulic driving equipment is installed at one end of each roller crushing operation surface; the hoppers are arranged on the first operation surface and the second operation surface; and the control device is used for controlling the mechanical devices.

The invention discloses an oil-in-water emulsion oil displacement agent for crude oil chemical flooding for recovery efficiency improvement. The oil-in-water emulsion oil displacement agent is prepared from, by weight, 1-5 % of nano silica sol, 0.02-0.2% of octadecyl dimethylamine, 5-10% of 5 # white oil and the balance water and is prepared through mixing, wherein the particle size of the nano silica sol is 7-12 nm, and the weight percentage content sum of the components is 100%. The viscosity and stability of oil-in-water emulsion is improved by adding nano silica, the oil-in-water emulsion can improve the displacement efficiency of chemical flooding and also improve sweep efficiency and can improve the displacement efficiency by 30% or above based on water flooding by serving as the oil displacement agent for tertiary oil recovery.

The invention relates to an inverted organic light emission diode device comprising a substrate, a cathode layer, a pn junction layer, an organic light emission function layer, and an anode layer. The layers are successively laminated. The cathode layer is a transparent conductive oxide film; the pn junction layer includes a p type layer approaching the cathode layer and an n type layer arranged on the p type layer; and a light emission layer is arranged in the organic light emission function layer. According to the inverted organic light emission diode device, the transparent conductive oxide film is used for forming the cathode layer and serving as an emergent electrode; and the pn junction layer is designed on the cathode layer and generates charge separation at an exterior electric field, and electrons and holes are respectively transmitted to the organic light emission function layer and the cathode layer from the junctions of the pn junction layer. Therefore, the electrons are injected into the organic light emission function layer, thereby solving a problem of difficult electron injection. The inverted organic light emission diode device prepared based on the design can obtain the high luminous efficiency.