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483results about How to "Achieve transformation" patented technology

Permeability improvement technology for coal bed gas reservoir cap by using three-dimensional fracture network modification

The invention relates to a permeability improvement technology for a coal bed gas reservoir cap by using three-dimensional fracture network modification. The technology is as follows: building a bedding horizontal well from ground to top and bottom plates of the coal bed of an area not mined; building bedding, three-dimensional cross-type or multi-branch long boreholes on the top and bottom plates of the coal bed of the area not mined through perforation and segmented fracturing or existing sinking and driving engineering, and then carrying out hydraulic fracturing; modifying the coal bed gas reservoir cap into a crisscross fracture network system to form a modified volume; building various types of drainage boreholes in the modified volume; and carrying out negative pressure extraction together with a fractured well, so that coal bed gas can be continuously desorbed and dispersed and then extracted out in large scale through the modified volume. According to the invention, the crisscross fracture network system is formed in the coal bed gas reservoir cap, so that the coal bed gas can be continuously desorbed and dispersed at negative pressure and then extracted out in large scale through the modified volume, thus the content of coal bed gas in the modified bed can be quickly reduced to be below the safety standard in the outburst prevention formulation, and safe and high-efficiency production of mines can be realized on the basis of forming scale coal bed gas development.
Owner:HENAN COAL CHEM IND GROUP INST

Hybrid temporary plugging volume fracturing method suitable for deep shale gas horizontal well

ActiveCN106437662ASolve the transformation problemImprove utilizationFluid removalShale gasMaterial Perforation
The invention provides a hybrid temporary plugging volume fracturing method suitable for a deep shale gas horizontal well. The method comprises the following steps that 1, wiper trip and well washing operation is conducted on a horizontal well subjected to suspected casing deformation, whether the horizontal well is subjected to casing deformation or not is determined, and if yes, the casing deformation position and length are further determined; 2, after the casing deformation position is determined, perforation position and parameters are determined according to geology and well logging parameters; 3, a perforating gun type and a perforation mode are determined according to the wiper trip condition; 4, the size of construction is determined according to the casing deformation section length and the perforation number; 5, a treatment mode of a fractured section is determined according to different well conditions after casing deformation occurs; 6, on the basis of the perforating gun type, temporary plugging diversion fracturing operation is implemented in a perforation hole and section or a fracturing effective flow channel within the fracture through a hybrid temporary plugging volume fracturing temporary plugging diversion technology, and the overall transformation volume is increased.
Owner:ORIENT BAOLIN TECH DEV BEIJING

Smelting method of HIC (Hydrogen Induced Crack)/SSCC (Sulfide Stress Corrosion Cracking)-preventing steel

The invention discloses a converter smelting and external refining control method of HIC (Hydrogen Induced Crack)/SSCC (Sulfide Stress Corrosion Cracking)-preventing steel. A smelting process route of converter-CAS (Control Automatic System) station-LF (Low Frequency) refining-VD (Vacuum Distillation)/RH (Relative Humidity) vacuum-calcium treatment-soft blowing-continuous casting is adopted. Low-phosphor requirements of the HIC/SSCC-preventing steel are obtained through controlling the converter smelting process route; and meanwhile, part of deoxidation type inclusions are removed by carrying out strong deoxidation, alloying as well as residue washing in a converter steel-tapping process, and over 60% of sulfur in molten steel is removed by sufficient stirring of the residue washing. In the LF refining process, refining furnace slag which is high in alkalinity, high in Al2O3 and strong in reducibility is obtained by regulating components of the refining furnace slag, and the inclusions are transformed and removed towards a low melting point by virtue of balance of the furnace slag-molten steel-inclusions. Proper vacuum treatment time and vacuum degree are kept at a vacuum treatment furnace so as to remove part of gas and inclusions, excessive calcium line is fed into the molten steel after being broken in air, and then the molten steel is softly blown and stirred for over 20 minutes to obtain the molten steel with ultralow oxygen and ultralow sulfur.
Owner:HUNAN VALIN XIANGTAN IRON & STEEL CO LTD

Regional complex distribution network dispatch control management system based on virtual power plant

The present invention discloses a regional complex distribution network dispatch control management system based on a virtual power plant, and belongs to the technical field of dispatch control management. Aiming at the problem that distribution network control becomes increasingly complex due to increasing complexity of the structure in a distribution network, sharply increased number of dispersed and distributed power supplies, increasingly growing capacity / power ratio and complex and varied regional distribution networks, the regional complex distribution network dispatch control managementsystem based on a virtual power plant is developed. The system mainly includes the construction of different types of virtual power plants and a big data cloud computing platform at a regional leveldistribution network dispatch center. By developing the dispatch control management system for a regional power grid, a complex distribution network can be connected in the form of a virtual power plant for unified coordination and optimization management, and the system is a new type of complex distribution network management mode. The regional complex distribution network dispatch control management system can be widely applied to distributed new energy-rich areas, and is of practical significance for developing virtual power plants, developing renewable green energy and achieving energy transformation.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Preparation method of non-rare earth MnAl permanent magnetic alloy

The invention relates to a preparation method of a non-rare earth MnAl permanent magnetic alloy. The preparation method comprises the following steps: (1) preparing the compositions of a master alloy sample: preparing master alloy raw materials with Mn60-xAl40+x as a nominal composition according to the atom percentage, wherein x is equal to 0-10; (2) smelting the master alloy: adopting a non-self-consumable electric arc furnace, putting the prepared master alloy raw materials into a water cooling copper crucible, and repeatedly smelting the alloy for 3-5 times to obtain a MnAl alloy ingot with uniform compositions; (3) preparing an MnAl alloy ribbon by the MnAl alloy ingot by adopting a single-roller rapid quenching method; (4) carrying out vacuum heat treatment: carrying out vacuum heat treatment on the MnAl alloy ribbon obtained in the third step to obtain a tau-phase MnAl alloy; and (5) mechanical ball milling: ball milling the tau-phase MnAl alloy obtained in the fourth step to obtain tau-phase MnAl alloy powder, namely the non-rare earth MnAl permanent magnetic alloy with high coercivity. Compared with the prior art, according to the preparation method disclosed by the invention, the cost is low, the preparation process is simple, and the obtained MnAl permanent magnetic alloy is good in permanent magnetic property and high in coercivity.
Owner:TONGJI UNIV

Earth pressure balance type annular shield machine

InactiveCN102200014AAchieve transformationIncrease the range of applicable soil layersTunnelsNitrile rubberEarth pressure balance
The invention relates to an earth pressure balance type annular shield machine. The shield machine comprises a shield machine shell, an annular knife disc, an earth pressure cabin, a screw conveyer, thrust cylinders, a gasket, a pipe piece disassembling machine, a pipe piece assembling machine and a sealing brush, wherein the annular knife disc is arranged at the front part of the shield machine shell, and the earth pressure cabin is arranged at the rear part of the annular knife disc; the screw conveyer is arranged at the lower part of the shield machine shell, and the thrust cylinders are uniformly distributed around the shield machine shell; the gasket is a nitrile rubber corrugated pipe inflatable gasket, and the side part of the gasket is provided with a gasket jack; the pipe piece disassembling machine is arranged at the front end of the upper part of the screw conveyer; the pipe piece assembling machine is arranged behind the pipe piece disassembling machine; and the gasket brush is arranged at the tail part of the shield machine. Compared with the prior art, the earth pressure balance type annular shield machine can be used for excavating tunnels with different diameters as required, the range of applicable soil layers is wide, the earth pressure in the earth cabin is maintained through the expansion and contraction of compressed air, and the functions of sealing and water stopping are realized.
Owner:TONGJI UNIV

Preparing method for self-healing polysaccharide hydrogel

The invention relates to a preparing method for self-healing polysaccharide hydrogel. The preparing method comprises the steps that cellulose is added into ionic liquid to be dissolved, the mixture is then cooled to the room temperature, and a cellulose solution is obtained; the cellulose solution is heated and dripped with tert-butyl acetoacetate under the protection condition of introducing nitrogen, a reaction is carried out at the constant temperature, the solution is then cooled to the room temperature, purified and subjected to vacuum drying, and acetoacetic acid cellulose is obtained; under the room temperature, a chitosan solution is added into the acetoacetic acid cellulose solution, oscillated and mixed, and the self-healing polysaccharide hydrogel is obtained. The polysaccharide hydrogel prepared through the method has the self-healing performance, and has the pH responsiveness at the same time. The preparing method is simple in process, rich in raw material and suitable for modification of most polysaccharide derivatives; meanwhile, due to the good biocompatibility of cellulose and chitosan, the prepared polysaccharide hydrogel has good application prospects in the fields such as tissue engineering repair, medicine controlled release and biological bionics.
Owner:DONGHUA UNIV

Functionalized metal-organic framework compounds, complexes formed therefrom, and methods of preparation and use thereof

The invention discloses a functionalized metal-organic framework compounds, complexes formed therefrom, and methods of preparation and use thereof, wherein the molecular formula of the functionalizedmetal-organic framework compound is C36H22N7O4Zn, and the complex is formed by self-assembling tetra(4-(3-(4-carboxyphenyl)-2,3,4-triazole)-phenyl)ethylene as the main ligand, 4-4'-bipyridine as an auxiliary ligand and zinc nitrate. A LIFM-WZ-6 has high fluorescence quantum yield and two-photon absorption cross section, and has the advantages of high emission intensity and stable luminescence performance. A large amount of small cationic dyes can be adsorbed to achieve the purpose of adjusting the luminescence properties by single-photon and two-photon excitation and realize the emission of white light. The LIFM-WZ-6 does not mercury, is non-toxic, non-volatile, easy to recycle, and environmentally friendly; the composite can adsorb different kinds of cationic dyes with different contentsto obtain light emitting complexes with different light colors and luminosity, so that the light colors of the light emitting complexes can be more easily adjusted and the light color conversion can be realized.
Owner:SUN YAT SEN UNIV

Gas metal arc welding method and system

The invention discloses a gas metal arc welding method and a gas metal arc welding system, and belongs to the field of gas metal arc welding control. Constant wire feed is adopted, the wire feed rate ranges from 1.5 to 18m / min, a welding source outputs pulse current, and the average value of the pulse current is preset according to the wire feed rate before welding and is kept unchanged in the welding process; the arc voltage Ug is given before welding, a feedback value Uf of the arc voltage is sampled in real time in the welding process, and delta I is equal to the absolute value of k(Uf-Ug), wherein delta I is regulation current, and k is a proportionality coefficient and ranges from 10 to 100; when the feedback value Uf of the arc voltage increases, delta I is subtracted from the peak value Ip of the pulse current, and the basic value current Ib is added to delta I to keep the arc voltage stable; and when the feedback value Uf of the arc voltage decreases, the adjusting process is reversed. By the high frequency pulse current, the average value and the effective value of the current are obviously different, so that on the premise that the heat input of a base metal the heating of a solder wire is not changed basically, the heating of a solder wire is changed, the melting rate of the solder wire is adjusted and the arc length is adjusted.
Owner:BEIJING UNIV OF TECH

Lake basin ancient landform restoration-based quantitative method

The invention provides a lake basin ancient landform restoration-based quantitative method. The method comprises the following steps of 1, establishing a high-precision isochronal stratigraphic framework in a recessed area; 2, selecting a marker bed, and determining the thickness of a two-section residual stratum in the recessed area; 3, adopting the mudstone sound wave time-difference method, andcorrecting the residual stratum thickness of a target layer to be the actual stratum thickness; 4, carrying out stratum inclination angle correction; 5, subjecting the actual formation thickness of arecovery layer to de-compaction treatment so as to determine the initial deposition time thickness; 6, restoring ancient water depth values at a plurality of well points through rock core analysis and thickness measurement, and converting the thickness of the stratum into the distribution of the paleo-water-depth according to the thickness correspondence relation between the paleo-water-depth andthe thickness of the initial sedimentary period, namely quantitatively restoring the lake basin shape. According to the invention, not only the influence problem of stratum dip angle, stratum erosionand stratum compaction effect on the thickness is solved, but also the lake basin shape can be quantitatively represented. The distribution of the paleo-water-depth is quantified. The precision problem when the lake basin shape is recovered is solved. The recovery precision of the lake basin shape is improved.
Owner:CHINA NAT OFFSHORE OIL CORP +1

Preparation method of mechanically-wrapped tobacco-coated cigar wrapper

The invention relates to a preparation method of a tobacco-coated cigar wrapper which can reform the smoking flavor of cigar. The method comprises the following steps of: extracting tobacco raw materials (such as shreds or stems of burley tobacco, aromatic tobacco, sun-cured tobacco and flue-cured tobacco) alone or in combination; making a tobacco extract; adding combustion promoters and humectants to the tobacco extract; squeezing the tobacco raw materials and then blending and pulping with a paste mill to obtain tobacco slurry; blending additional wood pulp fibers commodity alone or in combination until reaching 40 degree SR to 75 degree SR to obtain additional fiber slurry; adding the tobacco slurry into the additional fiber slurry and then adding calcium carbonate to obtain mixed slurry; making a paper base with a fixed quantity of 28 g/m<2> to 40 g/m<2> from the mixed slurry by using a fourdrinier board machine; and coating the tobacco extract on the paper base to make a novel cigar wrapper, wherein the coating amount of the tobacco extract is 3 g/m<2> to 20 g/m<2>. The cigar wrapper produced by the invention can not only meet the requirements for sensory quality of cigars but also achieve conversion of manual wrapping to mechanical wrapping of cigar, and greatly increases cigar production efficiency.
Owner:HUBEI CHINA TOBACCO IND +1

Geographic grid mapping method of mobile network data

The invention discloses a geographic grid mapping method of mobile network data, and belongs to the field of mobile communication network optimization and analysis. The steps are as follows: firstly, carrying out mathematical modeling based on the existing massive DT drive test data, forming a corresponding relationship between an actual geographic area grid and a base station cell identifier, and analyzing the system format to obtain the following comparison table: grid numbers, cells, the number of sampling points, a total number of the sampling points, a distribution ratio of the sampling points and a coverage weight; normalizing the obtained comparison table, and carrying out linear interpolation calculations on geographic grids having no data with reference to geographic grids having data to obtain a new comparison table having the same structure; carrying out statistical calculation from a whole network angle based on the new comparison table, and updating the coverage weights of the cells in the geographic grids to facilitate the geographic grid mapping calculation of the mobile network data in the next step. The mobile network data are concluded in several categories, and the mobile network data are mapped into the corresponding geographic grids according to the comparison table established in the last step.
Owner:BEIJING TUOMING COMM TECH

Method for preparing micro magnetic carrier, micro magnetic carrier and active sludge immobilization method

The invention relates to a method for preparing a micro magnetic carrier, the micro magnetic carrier and an active sludge immobilization method. The method for preparing the micro magnetic carrier comprises the following steps of: adding 10 to 50g/L of Fe3O4 particles into a polyvinyl alcohol solution, stirring, and adding a glutaraldehyde solution, concentrated hydrochloric acid and a sodium alginate solution for reacting; and washing with acetone, ethanol or distilled water, drying, and thus obtaining the micro magnetic carrier using the magnetic Fe3O4 particles as a core for wrapping a polyvinyl alcohol layer. A sequencing batch reactor technology is used in the active sludge immobilization method using the micro magnetic carrier as a core, the inoculation medium consists of the micro magnetic carrier and conventional sewage in a mass ratio of 1:1-1:3 and is used for secondary bio-treatment of active sludge, and the concentration of the inoculated active sludge is 2 to 4g/L (mass of the dry sludge/ effective volume of a reactor); and the operating mode comprises water feeding, anaerobic stirring, aerobic aeration, settlement, drainage and standing. The invention has the advantages of quickening the biochemical reaction rate of dirt degradation and improving the treatment efficiency and the treatment effect of the sewage.
Owner:INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL

Integrated measuring device for multiple-point type flow velocity pressure temperature

The invention discloses an integrated measuring device for multiple-point type flow velocity pressure temperature, and belongs to the technical field of flue gas flow velocity measuring devices. The integrated measuring device for the multiple-point type flow velocity pressure temperature comprises a gas circuit detection unit (8), a backflow calibration unit and a sensing measurement unit (17). An outlet of a dynamic pressure tube of the gas circuit detection unit (8) and an outlet of a static pressure tube of the gas circuit detection unit (8) are respectively connected with an air inlet of the backflow calibration unit. A temperature sensor of the gas circuit detection unit (8) is connected with the sensing measurement unit (17). Through the integrated measuring device for the multiple-point type flow velocity pressure temperature, multi-point measurement on the same pitot tube is achieved, flow velocity of a cross hatching line is directly outputted, accuracy of measurement of fuel gas flow velocity is improved, a gas circuit of a system is shortened, loss of backflow air supply pressure which is caused by the phenomenon that the gas circuit is too long is prevented, the backflow effect is enabled to reach an optimal level, and the gas circuit is prevented from being blocked by dust.
Owner:南京吉纳波环境测控有限公司

Charging and display system of taxi

The invention relates to an accounting and displaying system for combined-taxi, aiming at providing accounting taxi charges separately by seats and showing the results on the screen of the taxi. According to the different amount of passengers and the different mileage for each passenger, this accounting and displaying system can show the charges separately. Deduct the roundabout mileage charges caused by taxi sharing, the separate flag-down rate, the mileage and the taxi sharing charge under different conditions (shared by single passenger, double passengers, three passengers or four passengers, etc.) can be shown on the screen. In addition, the total charge of each passenger for single-driving will also be shown. The single-driving charge and the taxi sharing charge can be printed out as well. Moreover, the administrative data such as the different taxi sharing mileage, the charges and the person-time under certain taxi sharing conditions calculated at different times is shown and printed out electronically, which is convenient for changing the display and the account leading by seats exchanges of passengers or getting on and off the taxi. The accounting and displaying system for combined-taxi with an operation display lamp and a display board top of the taxi can make the transition from single-driving taxi to combined-taxi in taxi industry.
Owner:苏大庆 +1
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