974results about How to "Extend the production cycle" patented technology

The invention provides a channeling preventing and plugging agent and a construction method for controlling plugging and sealing channeling by utilizing the channeling preventing and plugging agent. The channeling preventing and plugging agent comprises a high-temperature-resistance pre-plugging agent serving as a pre-posed pre-plugging plug, an enhanced gel plugging agent serving as an intermediate enhanced plug and a high-strength resin plugging agent serving as a postposed sealing plug. The channeling preventing and plugging agent has the characteristics of high temperature resistance, long-term stability, good plugging performance and the like. The invention further provides a construction method for controlling plugging and sealing channeling by utilizing the channeling preventing and plugging agent. The method has a simple constructing process, and can be used for constructing after the channeling preventing and plugging agent is directly prepared on the spot. The channeling preventing and plugging agent can be used for effectively solving the adverse impact of the steam/air channeling phenomenon of a heavy oil thermal production well on production, and has an important effect on prolonging the production cycle of a heavy oil well and improving the recovery efficiency.

The invention discloses an exploitation method for a wax precipitation oil reservoir. The method comprises the step of adding a chemical agent and thermal fluid into an oil layer to make crude oil in the oil layer smoothly seep into an oil well and then rise to the ground surface. The method has the advantages of effectively solving the problem of wax precipitation of the crude oil in the oil layer and exploiting the wax precipitation oil reservoir, greatly reducing the exploitation cost of the wax precipitation oil reservoir, prolonging the production period and increasing the yield of the oil well and enhancing the final recovery efficiency of the oil reservoir, along with easy implementation, safety and reliability and obvious economic benefit.

The invention discloses an exploitation method of a thick oil type oil deposit, which comprises the following steps of: adding a chemical agent and hot fluid into an oil layer, enabling crude oil in the oil layer to be successfully seeped to an oil well and then enabling the crude oil to be raised to the ground from the inside of the oil well. The invention has the following advantages that: the invention can effectively solve the problem of phase precipitation of the asphaltene of the crude oil in the oil layer, can effectively exploit the thick oil type oil deposit, lowers the exploitation cost of the thick oil type oil deposit greatly, prolongs the production period of the oil well, increases the yield of the oil well, enhances the final recovery ratio of the oil deposit and has easy execution, high safety and reliability and obvious economic benefit.

A method of manufacturing absorbent sheet is directed to a wet-press/fabric-crepe process wherein add-on of adhesive to the Yankee surface is at relatively low levels, yet sheet transfer is maintained and production increased. Materials are selected and process parameters are controlled such that a paper machine can be operated for at least 4 hours before the Yankee coating needs to be stripped. Preferably, average increase in Yankee hood temperature is less than 1° F./minute during a production interval.

The invention relates to a composite fruit and vegetable crisp chip and a manufacturing method thereof, especially to a composite fruit and vegetable crisp chip manufactured by using combined microwave vacuum freeze drying technology and vacuum low temperature frying technology, belonging to the field of food processing technology. The manufacturing method for the composite fruit and vegetable crisp chip comprises the following steps: preparation of condensed fruit and vegetable pulp; batching; batch mixing; die molding; microwave vacuum freeze drying; vacuum low temperature frying; etc. With the manufacturing method, generation of harmful substances like acrylamide and trans-fatty acids is reduced in the process of manufacturing, and the manufactured composite fruit and vegetable crisp chip has the advantages of crisp taste, a bright color, small nutrient loss, etc.

The present invention relates to high solid content vinyl acetate-ethylene copolymer latex for binder and the synthetic method, including 55 to 75 portion of vinyl acetate, 24 to 45 portion of ethylene, 3 to 5 portion of N-methylol acrylamide, 2 to 4 portion of PVA1788 and PVA0588, 0.4 to 1.0 portion of the compound of nonionic emulsifying agent nonyl phenol polyoxyethylene alkyl ether and anion emulsifying agent alkyl sulphate with 2:1 mixture ratio, 0.2 to 1.0 portion of 35 percents oxydol with 1:1 mixture ratio, 0.05 to 0.4 portion of formol zinc sulphate, 0.1 to 0.5 portion of ferrous sulphate, 0.5 to 1.0 portion of regular dodeca-carbon thiol-alcohol, 0.05 to 0.35 portion of potassium phosphate, 0.1 to 0.5 portion of sodium bicarbonate and 45 to 55 portion of de-ionized water. With the adoption of latex polymerization, low-residual monomer VAE latex with solid content more than 65 percents is synthesized, which is used as binder to be applied in timber processing industry and packaging industry.

The invention provides a high crack-arresting toughness steel plate with yield strength of 500MPa and a production method thereof. The chemical components of steel comprises the following components in percentage by weight: 0.04-0.08% of C, 0.10-0.5% of Si, 0.8-1.6% of Mn, not more than 0.02% of P, not more than 0.01% of S, 0.03-0.065% of Al, not more than 0.005% of N, 0.005-0.05% of Nb, 0.005-0.03% of Ti, 0.0005-0.003% of B, not more than 0.004% of Ca, and the balance of Fe and avoidless impurities. The preparation method comprises the steps of roughing in an austenite re-crystalline region in a first stage, wherein the rolling temperature is 1000-1130 DEG C, the total reduction rate in the re-crystalline region is greater than or equal to 50%; cooling a rolled steel plate quickly to 580-530 DEG C at a rate of 10 DEG C/s; rolling in a non-re-crystalline region in a second stage when the temperature of the surface of the steel plate is 720-770 DEG C, wherein the accumulated deformation is greater than or equal to 50%, the finish rolling temperature is 700-740 DEG C; and water-cooling after rolling, wherein the cooling rate is 5-15 DEG C/s, and the final cooling temperature is 460-560 DEG C. The high crack-arresting toughness steel plate provided by the invention has the characteristics of high strength, high toughness, inhibition of crack formation and expansion and the like, and meets the performance requirements of special part members of large container ships.

The invention relates to a technique combining the chemical huff and puff stimulation and the reversed plugging control. The technique adopts slug-type injection mode, including active agent slug, water plugging profile modification agent slug an displacement fluid slug, and includes the following steps: (1) firstly, injecting the active agent into the oil production layer, (2) injecting the water plugging profile modification agent 0-20 hours later, (3) then using excessive displacement fluid to lift all chemical agents to a place which is more than 3m away from well bore, and then using water to displace the excessive displacement fluid to the stratum and finally closing the well for 1 to 2 days for condensation. The purpose of the technique is to combine the huff and puff of the active agent with high oil-washing efficiency and low interfacial tension and the reversed profile control and flooding of the oil well, thus not only increasing the conformance factor of the injection of the water but also improving the oil displacement efficiency and extending the life circle.

A high-efficiency pour point depressant for thermal recovery process comprises (1) biphenyl, polycyclic aromatic hydrocarbons or polycyclic aromatic hydrocarbon derivatives free of chlorine and sulfur elements; (2) liquid petroleum products containing arene larger than 5%, petroleum resin in liquid state at normal temperature or natural hydrocarbon aggregates in particle state at normal temperature; (3) surfactant; (4) fusel oil; (5) alcohol ethers having a closed cup flash point larger than 20 DEG C; and (6) oil-soluble or water-soluble polymers respectively having a nonpolar section eutectic with paraffin molecule and a polar section for twisting crystal form of wax crystal on a main chain and/or a branch chain. The high-efficiency pour point depressant of the invention performs all functions of both water-base pour point depressant and oil-base pour point depressant, and can efficiently assist the prior various thermal recovery processes in exploring high pour-point oil and heavy oil reservoirs, with the advantages of greatly reduced exploitation cost, prolonged production cycle of the oil well, increased output of the oil well, increased ultimate recovery of the oil reservoir,as well as significant economic benefit.

The invention discloses a method for acquiring a geometric correction parameter of a PET (positron emission tomography) system. The method comprises the steps of 1) building a virtual PET system environment by using computer software; 2) inputting the related parameter of a real PET system of which the geometric correction parameter needs to be measured into the virtual PET system environment; 3) designing a specific virtual measured object in the virtual PET system environment; 4) scanning the specific virtual measured object in the virtual PET system environment to acquire coincidence data; and 5) performing difference analysis to the coincidence data to obtain the geometric correction parameter. According to the method, preparation for object PET equipment and a measured object model is eliminated, and the process of acquiring the geometric correction parameter is simple, economical, quick and free from the limit of environment factor, and therefore, the accuracy of the geometric correction parameter is ensured. In addition, the method can be executed before or after development and production of the PET system, so that the design, development and production period of the PET system is accelerated.

The invention relates to a greenhouse energy source comprehensively utilizing system, in particular to a system for comprehensively utilizing energy sources in a greenhouse and belongs to the technical field of the greenhouse. The system is suitable for being used under the conditions of temperature difference between day and night, low temperature in winter and continuous overcast and rainy seasons and mainly improves various energy source utilizing efficiency of the greenhouse through various energy source utilizing technologies. The system for comprehensively utilizing energy sources in the greenhouse comprises a solar heat collecting system, an underground heat storage system, an efficient heat exchange system, a control system, an underground cooling system, a fluid infusion water tank, a circulating pump, a fan and a heat storage tank body. The system remarkably improves the greenhouse energy source utilizing rate by combining a solar energy utilizing technology, a heat exchange technology and a heat storage technology in greenhouse warming, has great technological and economic advantages, can maintain appropriate soil temperature required by plant root systems and ensure the requirement of greenhouse plants to the house temperature, can enable crops to rapidly grow and being high in yield, high in quality and benefit, improves the solar energy utilizing rate of an existing greenhouse, reduces existing energy consumption and production cost, prolongs a production period, and has high economic and social benefits.

The invention discloses a manufacturing process of wind power vanes. A one-step die assembly technology is adopted, i.e. when a main bracket is bonded with a shell, another shell is immediately bonded with the main bracket, and the die assembly of the vanes is continuously finished, therefore, the die assembly is carried out continuously instead of being carried out after the main bracket and the shell are bonded and solidified. By adopting the manufacturing process of the wind power vanes, the quality of the vanes can be improved, the use levels of tools and raw materials and auxiliary materials are both greatly reduced, glue is especially saved, the production cost of the vanes is reduced, the unnecessary time for weighting the solidification of the glue is reduced, and the production efficiency is improved.

The invention discloses an integrated overhung composite insulator string and a method for printing a composite insulator string connecting metal tool by using 3D. The method comprises the following steps of: firstly, generating a three-dimensional CAD (Computer-Aided Design) model of a part in a computer, and printing the three-dimensional CAD model by utilizing a 3D molten-drop printing machine; then slicing up and layering the model according to a certain thickness, converting the three-dimensional information of the part into a series of two-dimensional profile information; melting down metal by using a crucible, and enabling the molten metal to flow out of a nozzle to form molten drops; then accumulating the molten drops layers by layer according to the two-dimensional profile information under the control of the computer so as to obtain a three-dimensional entity part or a part in similar shape. After the method is adopted, a ball-socket series of metal tools is shaped for once directly through the molten-drop 3D printing machine, the connecting cooperation is more reliable and more stable, secondary installation is unnecessary, and the production efficiency is improved; meanwhile, the efficiency of the site construction is provided, and a great influence to the construction of a high-voltage overhead power line is generated.

Disclosed is a refining technique of base oil regenerated from used lubrication oil, and the refining technique comprises the following steps of 1, removing solid waste, which includes removing solid waste from used lubrication oil by centrifugation; 2, solvent pretreatment, which includes extracting mixed impurities and moisture through a solvent and obtaining raw oil after removing upper oil; 3, flocculation treatment, which includes turning mixtures obtained from step 2 into a mixture of flocculation; 4, atomospheric distillation; 5, carrying out reduced pressure distillation; 6, carrying out rectification; 7, solvent refining: putting oil produced from a rectifying column into a treatment tank and when the height of the oil level in the treatment tank reaches 65%-75% of the height of the treatment tank, adding by mass 10%-40% of 1-Methyl-2-pyrrolidinone, and carrying out solvent refining. The refining technique of base oil regenerated from used lubrication oil has the advantages of low investment and high yield efficiency, meanwhile, the refining technique accords with the requirement of environmental protection, reduces vacuum residuum by 15%, improves product yield, facilitates the overhauling of equipment, prolongs the production period, largely improves production efficiency and appearance quality of minus line oil, and helps to obtain high quality regenerated base oil.

The invention discloses a preparation method for an aluminum titanate ceramic. According to the invention, industrial alumina and titanium oxide are used as basic raw materials, one or more raw materials selected from the group consisting of MgO, Fe2O3, SiO2, ZrSiO4, mullite and the like are used stabilizing agents, and an aqueous polyvinyl alcohol solution is used as a binder; a mixture of the above-mentioned ceramic raw materials is uniformly mixed through ball milling and is then dried to remove moisture, a desired ceramic body is compacted through isostatic pressing, and binder removal and high temperature sintering are successively carried out so as to obtain the ceramic. The preparation method provided by the invention omits the traditional procedure of preparation of aluminum titanate powder before preparation of an aluminum titanate product, overcomes the problems of a long cycle, high cost, instable quality and the like of traditional processes and has the advantages of conservation of processing cost, environmental protection, a short production period, good thermal shock resistance of the product and suitability for industrial mass low-cost production.

The invention relates to preparation and application of Bacillus licheniformis. In order to solve the problems of small obtained viable count, long production period, high energy consumption, high production cost, low production efficiency and large workload for culturing the Bacillus licheniformis in the prior art, the invention provides a new preparation method of Bacillus licheniformis powder and microbial ecological agent, comprising the following steps: firstly, carrying out temperature gradient anabiosis culture on the freeze-dried strain of the Bacillus licheniformis; then, breeding strains, fermenting, and decentralizing and drying to obtain bacterial powder; and preparing the microbial ecological agent by taking the bacterial powder as a raw material. The freeze-dried strain of the Bacillus licheniformis can be subjected to the temperature gradient anabiosis culture, and the freeze-dried strain can gradually adapt to the final culture temperature; and meanwhile, the activity of enzyme in the bacteria is activated so as to improve the metabolism speed of the bacteria and quicken the bacteria breeding speed, thereby improving the obtained viable count, shortening the production period and improving the production efficiency.

The invention discloses a high-temperature walking beam furnace beam and column insulation lining slag-adhesion-preventing coating. The coating comprises the raw materials of, by weight: 55-60% of the bauxite clinker, 5-10% of magnesium aluminate spinel, 5-10% of calcined anthracite, 2-5% of flake graphite, 3-6% of silicon carbide, 4-6 % of alpha-Al2O3 powder, 4-6% silica micro-powder, 5-7% of calcium aluminate cement, 0.5-1.5% of metal silicon powder, 2.5-3.5% of water-soluble epoxy resin and water-soluble curing agent, 0.05-0.10% of explosion-proof fiber, 0.1-0.15% of sodium hexametaphosphate, 0.05-0.10% of an organic reducing agent, and 0. 04-0.07% of an organic silane coupling agent. With the slag-adhesion-preventing coating, the comprehensive targets are achieved, that service lives of the furnace beam and the column insulation lining are prolonged, furnace energy consumption and insulation lining surface slag adhesion amount are reduced, furnace maintenance cost is reduced, and high-temperature-oriented silicon steel production efficiency is improved.

The invention relates to an oil exploitation ground transmission system and relative method, belonging to the oil exploitation technique. Said invention can measure the oil well, add liquid into oil well, heat the oil well and mixed transmit the oil gas. And said invention comprises four parts as aforementioned functions. Wherein, the oil well measuring part uses a liquid automatic measurer, which comprises a skip measurer, an automatic oil well switcher and a transmission tube. The invention uses industry computer to realize said functions, with high automatic degree, high practicability, and unmanned management.

The invention discloses an oil layer wax precipitation type oil resource exploitation method which is progressed cyclically by the following steps: 1. 0.1-500 tons of pour point and viscosity depressant are injected into oil layers through an oil well; 2. 1-10000 tons of thermal fluids mixed with 30-400 DEG C of pour point and viscosity depressant are injected into the oil layers through an oil well; in the thermal fluids mixed with pour point and viscosity depressant, the weight proportion of the thermal fluids and the pour point and viscosity depressant is 100:0.001-10; 3. the oil well is closed, reacting for 2-240 hours when the well is closed; 4. a mixture of oil and water is sprayed through the oil well; 5. the oil is produced normally by a pumping unit. The exploitation method can effectively exploit the oil layer wax precipitation type oil resource, which greatly reduces the production cost, prolongs the production cycle of the oil well, improves the oil well production and increases the final recovery rate of the oil resource. Moreover, the exploitation method has the advantages of easy operation, safety and reliability and significant economic benefits.

The invention discloses a molding system that molds plates from plural points without a mould, comprising upper beam frames that are connected with each other and a lower beam frame with a lower fixing plate. An active beam frame with an upper fixing plate is arranged between the upper beam frame and the lower beam frame. The active beam frame is provided with an upper basic body controlling unit cluster with an automatic adjusting mechanism. The lower beam frame is provided with a lower basic body controlling unit cluster with an automatic adjusting mechanism. The upper basic body controlling unit cluster and the lower basic body controlling unit cluster correspond to each other up and down. With such a structure, the invention can realize automatic control, and can randomly change the shape of a molded surface by utilizing the upper basic body controlling unit cluster and the lower basic body controlling unit cluster, and thus the invention can replace the traditional mould to realize the molding effect from plural points of plates.

The invention relates to a small-caliber pipe butt-welding method. The method comprises a barrier-free small-caliber pipe whole-position welding method and a barrier small-caliber pipe welding method. The method is characterized in that the whole-position welding ground method is adopted, an overall welded junction is adopted as the lower side of a clock, namely, 6 o'clock, the left and right sides are 3 o'clock and 9 o'clock, at the moment, arc striking is performed at the position of 6 o'clock, arc application is performed from the two directions, and welding is performed at 12 o'clock. The method has the advantages that whole-position butt-welding is performed, auxiliary workloads are greatly reduced, the production circulation period is accelerated, and the welding junction butt-welding amount is remarkably increased; inner concave and incomplete penetration defects are effectively controlled and prevented; the first-passyield of butt-welding junctions of the barrier-free small-caliber pipe is increased from 93% to 97-98%, barrier pipes and pipe bundles are in butt welding, pipe bundles are in butt joint, the pipe junction first-passyield is increased from 85-90% to 96% or more, the welding junction first-passyield is obviously increased, and the production period is greatly shortened.

The invention discloses a preparation method of a dispersion fuel pellet with high uranium loading capacity, which comprises the steps of firstly adopting means such as pelleting, self-grinding balling and rolling coating to realize the balling of a uranium-based fuel and the coating with a reinforcing phase, then performing high temperature plasma sintering on a coated ball to obtain the uranium-based fuel pellet; forming a large amount of pores in a core pellet of the fuel by utilizing the volatilization of a pore-forming agent under high temperature, then promoting the low-temperature rapiddensification sintering of the reinforcing phase by combining the high temperature plasma sintering technology and a sintering aid, thus obtaining the dispersion fuel pellet with high uranium loadingcapacity, wherein the dispersion fuel pellet has a special core-shell structure in which the compact reinforcing phase coats the porous fuel core pellet, and the special core-shell structure is loosein the interior and compact in the exterior. The method has the advantages that the preparation is simple and the preparation cost is low, can be used for the scale production of the uranium-based fuel pellet; the uranium-based fuel pellet prepared by the method has the advantages of high thermal conductivity, high safety, high uranium loading capacity and high economy.