Method for controlling oil reservoir bottom water coning based on establishment of microbial mineralization partition plate

The invention discloses a method for controlling oil reservoir bottom water coning based on establishment of a microorganism mineralization partition plate, which specifically comprises the following steps of: injecting a well killing bottom water cone below nitrogen into a stratum through an injection well, then injecting a microorganism-nutrient-gelling material mixed solution, mixing the mixed solution with nitrogen in a porous medium and forming gel foam containing a microorganism bacterium solution, and the bacterial liquid and the cementing liquid are repeatedly injected to strengthen the strength of the partition plate, the microbial mineralization partition plate is established, and the bacterial liquid contains bacillus subtilis for producing urease. Special microorganisms are adopted to construct the partition plate, the method has the advantages of being low in economic cost, long in control time, free of pollution to a reservoir, capable of reducing the content of calcium and ...

Pin shaft hoisting device

The utility model relates to a pin shaft hoisting device. The pin shaft hoisting device is characterized in that a drum mechanism is fixed with one end of a steel wire rope; an output shaft of the power device is fixedly connected with the drum mechanism; a first through hole is formed in the side surface of the fixed disc; a second through hole corresponding to the first through hole is formed in the side face of the fixing frame assembly, a containing space for containing the power device is formed in the fixing frame assembly, the power device is arranged in the containing space, and an output shaft of the power device penetrates through the first through hole and the second through hole and is fixedly connected with an external drum mechanism. The fixing frame assembly is further fixedly connected with an external lifting frame lifting part. According to the utility model, one end of the steel wire rope is wound on the rotary drum mechanism, then the pin shaft to be hoisted is wound ...

Thermal-ultrasonic-electromagnetic field combination reflow soldering method

The invention relates to a reflow soldering method, in particular to a thermal-ultrasonic-electromagnetic field combination reflow soldering method. The method includes the following steps that a printed circuit board is placed in the middle of a reflow soldering heating plate, a magnet shaped like a Chinese character 'shan' is placed below the reflow soldering heating plate, the magnetic field lines of the magnet shaped like the Chinese character 'shan' are perpendicular to the surface of a reversely installed PCB assembly, and a coil resistant to a strong current is wound in the position of a middle magnetic core pillar; a chip element with a solder ball is picked up by an ultrasonic contact through an alignment device of precision optics and aligned with a solder pad on the PCB; the reflow soldering heating plate is turned on, when the temperature of the reflow soldering heating plate reaches the temperature required by a heat preservation zone, ultrasound and a magnetic field start ...

Method for achieving silicon through hole laminated chip interconnection

The invention discloses a method for achieving silicon through hole laminated chip interconnection. The method is used for achieving bonding among multiple layers of stacked silicon through hole chips through the following steps of punching, filling of conductive metal, preparing of a solder layer, clamping and centering, bonding and forming of finished products, wherein in the bonding process, a current joule heat auxiliary bonding technology is adopted for achieving silicon through hole three-dimensional interconnection welding spot bonding. According to the method for achieving three-dimensional packaging and bonding with the assistance of joule heat, under the low temperature and even the normal temperature, fast bonding of full intermetallic compound welding spots can be achieved, and heat damage to a chip is effectively reduced. Under the action of oriented currents, intermetallic compounds in the welding spots are grown preferably and rapidly in an oriented mode, high electrical ...

Transformer substation's secondary equipment room segmental timbering

... (B, ) the utility model discloses a transformer substation's secondary equipment room segmental timbering is including accuse cable support, screen position support and optical cable support, be connected with the static floor on accuse cable support, screen position support and the optical cable support. Accuse cable support, screen position support and optical cable support be the support of adjustable height, the support of adjustable height includes base, square steel tube support, nut, bolt and layer board, square steel tube supports fixed connection on the base, nut fixed mounting supports the upper end at square steel tube, layer board connecting bolt, bolt and nut and threaded connection. The utility model discloses (B, ) (b) simple structure, low cost, installation are easy, carry out control panel installation, cable laying in (b) (b) transformer substation secondary equipment room, when mat formation in the floor, can high efficiency ground on -site Assembly, ensure that the ...

Method using heat-ultrasound-electromagnetism compound field to regulate intermetallic compound growth to achieve high-reliability and three-dimensional interconnection of chips

The invention relates to a novel method for welding-spot intermetallic compound oriental growth under the low-temperature quick bonding technique condition of a plurality of layers of stacked chips, in particular to a method using a heat-ultrasound-electromagnetism compound field to regulate intermetallic compound growth to achieve high-reliability and three-dimensional interconnection of chips. The method can ultrasonically bond a plurality of layers of stacked silicon through hole chips according to the sequence of punching, filling conductive metal, preparing a brazing layer, clamping and aligning, heat-ultrasound-electromagnetism and a finished product. Ultrasound can prompt diffusion of metal atoms to accelerate formation of similar intermetallic compound welding spots, so that the complete growth time of intermetallic compound can be shortened to dozens of seconds and several minutes. An oriental magnetic field can control the crystal orientation of IMCs of the welding spots to improve ...

Integral cast-in-place main transformer oil pool

The invention discloses an integral cast-in-place main transformer oil pool. A main transformer body is arranged on an oil pool; embedded parts are arranged on the main transformer body; an oil pool wall is arranged at one side of the main transformer body; an oil pool bottom plate is connected with the oil pool wall; a galvanized steel pipe is connected with the oil pool wall; an expansion joint is arranged on the oil pool wall; an oil pit grate is connected with the galvanized steel pipe; a cobblestone layer is arranged on the surface of the oil pool bottom plate; an oil isolation layer is arranged at the lower side of the cobblestone layer; a foundation layer is arranged at the lower side of the oil isolation layer; and a rammed earth layer is arranged at the lower side of the foundation layer. The integral cast-in-place main transformer oil pool has the advantages that the oil pool bottom plate and the pool wall are formed through casting in one step; the design of a deformation joint ...

Assembly-type support of transformer substation secondary equipment room

The invention discloses an assembly-type support of a transformer substation secondary equipment room. The assembly-type support comprises a cable control support, a screen position support, and an optical cable support. The cable control support, the screen position support, and the optical cable support are connected with an electrostatic floor. The cable control support, the screen position support, and the optical cable support are supports whose height can be adjusted. The height adjustable support comprises a base, a square steel pipe support, a nut, a bolt, and a supporting plate. The square steel pipe support is fixedly connected with the base. The nut is fixedly arranged on the upper end of a square steel pipe. The supporting plate is connected with the bolt. The bolt is connected with the nut by threads. The support is simple in structure, low in cost, and easy in installation. In control screen installation, cable laying, and floor pavement of a transformer substation secondary ...

Anticorrosive bottom lacquer of water-soluble alcohol acid, and preparation method

Water-soluble alcohol-acid resin solution and water-soluble alcohol-acid amino baking paint and preparing method

Outdoor DC bus group control device

The invention relates to a group control device, in particular to an outdoor direct current bus group control device. The wire storage cabinet comprises a cabinet body and an adjusting part arranged in the cabinet body, a cabinet door is hinged to the side, located at an opening, of the cabinet body, a plurality of wire storage boxes are longitudinally arranged in the cabinet body, a mounting cavity is formed between every two adjacent wire storage boxes, an air conveying cavity is formed in one side of the interior of the cabinet body, and a plurality of air inlet holes and exhaust holes are formed in the side wall of the cabinet door. According to the direct current bus group control device, the characteristic that the deformation plate deforms at high temperature is utilized to lift the top plate to move upwards, the sliding grooves drive the baffles to move upwards to block the air inlet holes, the deformed deformation plate jacks the round rods at the same time, the corresponding baffles ...

Lignin/polyethyleneimine magnetic composite material and one-step preparation method thereof

The invention provides a method for preparing a lignin/polyethyleneimine magnetic composite material by a one-step method, which comprises the following steps: step (1): selecting a reactant consisting of polyethyleneimine, lignin and ethylene glycol, adding the reactant into a reaction container, heating to 70 DEG C, and dissolving to obtain a brown clear solution; (2) adding ferric salt and alkali into the brown clear solution obtained in the step (1), magnetically stirring and dissolving, transferring into a hydrothermal reaction kettle, and reacting for a certain time at a certain temperature to obtain a black suspension; and (3) naturally cooling the black suspension obtained in the step (2) to room temperature to obtain a black product, sequentially washing the obtained black product with deionized water and ethanol until the black product is clear, and carrying out vacuum drying at 60 DEG C for 12 hours to obtain the lignin/polyethyleneimine magnetic composite material. The invention ...

High-flexible matching property anticorrosive coating for blade of wind driven generator

The invention discloses a high-flexible matching property anticorrosive coating for a blade of a wind driven generator. The high-flexible matching property anticorrosive coating comprises a priming paint with epoxy resin as a base material and a finishing paint with high-flexibility acrylic resin as a base material, wherein the priming paint comprises the following components in percent by weight: 40-50 percent of epoxy resin, 5-15 percent of linear toughening modifier, 8-15 percent of pigment, 15-20 percent of functional filler, 5-20 percent of diluting agent and 5-15 percent of curing agent; and the finishing paint comprises the following components in percent by weight: 50-65 percent of acrylic resin, 15-25 percent of titanium white, 8-15 percent of diluting agent and 5-10 percent of weather-resistant curing agent. According to the high-flexible matching property anticorrosive coating, by using excellent flexibility of the priming paint and the finishing paint and the excellent flexible ...

Preparation method of amphoteric multifunctional magnetic composite material and prepared magnetic composite material

The invention provides a preparation method of an amphoteric multifunctional magnetic composite material, which comprises the following steps: (1) adding polyethyleneimine, lignin, sodium alginate and ethylene glycol into a reaction container, heating to 70 DEG C, and dissolving to obtain a mixed solution; (2) adding ferric salt and alkali into the mixed solution in the step (1), magnetically stirring, and treating the mixed solution by adopting a hydrothermal method to obtain a dark liquid; and (3) cooling the dark liquid in the step (2) until the temperature of the dark liquid is the same as the room temperature to obtain a black product, sequentially washing the obtained black product with deionized water and ethanol until the black product is clear, and carrying out vacuum drying at 60 DEG C for 12 hours to obtain the amphoteric multifunctional magnetic composite material. The invention also provides the lignin/polyethyleneimine/sodium alginate magnetic composite material prepared by ...

Renewable alkyd resin with high solid portion and preparation method of enamel paint

The invention discloses renewable alkyd resin with high solid portion and a preparation method of an enamel paint. The renewable alkyd resin comprises the following components: 30-50% of plant oleic acid, 15-35% of plant oil dimeric acid, 10-30% of polysaccharide and 20-30% of solvent. The enamel paint comprises the following components by weight: 40-80% of renewable alkyd resin with high solid portion, 8-40% of pigment, 0.1-1% of drier and 3-12% of solvent. The 100% renewable alkyd resin is prepared by renewable plant oil dimeric acid, polysaccharide, plant oleic acid and other ingredients, through elaborate preparation, the enamel paint with high mechanical strength of paint film and good weather fastness is designed, and each index can reach high solidity and low viscosity as common alcohol acid.

Room temperature-curing two-component aqueous epoxy zinc-rich primer

The invention discloses a room temperature-curing two-component aqueous epoxy zinc-rich primer. The primer comprises two components which are a component A and a component B respectively, wherein the component A comprises, by mass, 8-10 parts of E51 epoxy resin, 0.8-1 part of an epoxy diluent, 3.5-8 parts of a cosolvent, 0.9-1.2 parts of organic bentonite, 60-90 parts of zinc powder and 0-25 parts of micaceous iron oxide; and the component comprises, by mass, 45-65 parts of an aqueous epoxy curing agent, 34-50 parts of water, and 0.5-2.0 parts of a base material wetting agent. Compared with traditional three-component aqueous epoxy zinc rich primers, the two-component aqueous epoxy zinc rich primer has the advantages of convenient construction, operating time saving and excellent corrosion resistance. The primer disclosed in the invention has no pollution to environment due to adoption of water as the diluent, and is suitable for being used in the heavy duty anticorrosion fields of containers ...

Prefabricated assembly type enclosing wall

The invention relates to a prefabricated assembly type enclosing wall which comprises assembly stand columns, an assembly type wall body and fixed ribbed steel bars, the assembly type wall body is fixed to the side faces of the assembly stand columns through the fixed ribbed steel bars, the assembly type wall body is composed of a plurality of sets of split wall plates, and the split wall plates are arranged side by side; the multiple sets of split wallboards are fixed through the fixing ribbed steel bars, and the split wallboards close to the assembly stand column are fixed to the side face of the assembly stand column through the fixing ribbed steel bars. The arrangement of the assembly type enclosing wall is optimized, the structure and the connecting mode of a traditional assembly type enclosing wall are changed, the assembly type enclosing wall convenient to mount and dismount is designed, the use consumption of the enclosing wall is reduced, the number of times of cyclic utilization ...

Multifunctional cable tunnel inspection well

The invention discloses a multifunctional cable tunnel inspection well. An intelligent sewage discharge control box is installed on one side of a house wall on the upper portion of the inspection well. A switch door is arranged on the road facing face of the portion, located on the upper portion of the inspection well, of a house. A solar cell panel is installed at the top of the portion, located on the upper portion of the inspection well, of the house. An accumulator is installed on the portion, located on the upper portion of the inspection well, in the house and connected with the solar cell panel. A lamp is installed at the top of the portion, located on the upper portion of the inspection well, of the house. Rainproof shutters are installed on three faces of the portions, located on the upper portion of the inspection well, of the house and protective nets are installed on the shutters. A galvanized safety cover board is installed on the upper portion of a water collection pit. A ...

Modified acrylic resin-based normal temperature quick-drying automobile paint with high fullness and high solid

The invention discloses a modified acrylic resin-based normal temperature quick-drying automobile paint with high fullness and high solid. The modified acrylic resin is formed by esterification and copolymerization of 5 to 10 percent of unsaturated fatty acid, 2 to 6 percent of polyalcohol, 3 to 7 percent of diacid or diacid anhydride, 10 to 50 percent of styrene, 40 to 80 percent of acrylic ester monomer and 0.8 to 3 percent of initiator in percentage by mass. The normal temperature quick-drying automobile paint has the characteristics of thermoplastic acrylic resin paint such as quick drying and good weather resistance, has good fullness and easy construction, is suitable for coating automobiles with high decorative performance, and also can be used for coating household appliances, machinery and the like. Because of high solid and low VOC emission, the automobile paint meets nowadays environment-friendly requirements.

Shock-resistant base of transformer

A plurality of vertical lower mounting holes are formed in the periphery of a lower supporting seat in a penetrating mode, a middle mounting seat is fixed to the middle of the top end of the lower supporting seat, a vertical buckling seat is mounted at the top end of the middle mounting seat through bolts, and the middle mounting seat and the buckling seat are jointly and rotationally connected with a middle transmission ball; a vertical containing hole is formed in the middle of the middle transmission ball, a vertical main spring and a damper are fixed to the bottom end of the containing hole, and an upper supporting seat is installed above the lower supporting seat. Through cooperation of an upper transmission ball and an upper mounting seat, cooperation of a lower transmission ball and a lower mounting seat, and cooperation of a middle transmission ball and a middle mounting seat and a buckling seat, an upper supporting seat can swing, and through cooperation of a cylinder body and ...

Method for deeply removing acetic acid in DMAC (dimethylacetamide) solution by adopting magnetic material

The invention discloses a method for deeply removing acetic acid in a DMAC (dimethylacetamide) solution by adopting a magnetic material. The method comprises the following steps: preparing Fe3O4 microspheres by adopting a hydrothermal method; preparing the Fe3O4 microspheres into Fe3O4 coated SiO2 magnetic microspheres by adopting a sol-gel method; preparing ion exchange magnetic microspheres (Fe3O4 (at) SiO2 (at) N +) by taking the Fe3O4 (at) SiO2 magnetic microspheres as a matrix, N-trimethoxysilyl propyl-N, N, N-trimethyl ammonium chloride as a functional monomer and tetraethoxysilane as a cross-linking agent; according to the method, the process route is simplified, dd needs to be separated from a liquid phase system after adsorption and regeneration of the magnetic microspheres, at the moment, the magnetic core of the microspheres provides great convenience for recycling of the microspheres, and by relying on magnetic separation equipment, the recycling efficiency of the microspheres ...

Full automatic electroplating production line

The invention discloses a full automatic electroplating production line and relates to the technical field of electroplating devices or systems. The production line comprises a plurality of tanks sequentially arranged from left to right, a PLC control cabinet, a stirring system, a waste gas recovery system, a water supply system, a wastewater recovery system and a gantry crane. The production line has the advantages that the automatic control function is realized through the devices; and the production line comprises the wastewater and waste gas recycling devices, so that the produced waste gas and wastewater can be recycled and the characteristics of energy conservation and environmental protection are provided.

Precast reinforced concrete component

The utility model discloses a precast reinforced concrete component, include soil padding, cup type basis, concrete screed -coat, rings, concrete protective cap and spillway hole, a glass type basis bottom is equipped with the soil padding, and the basic both sides of cup type are equipped with rings, and the concrete protective cap is connected with the cup type is basic, and concrete protective cap bottom is equipped with the concrete screed -coat, and the concrete screed -coat is connected with the cup type is basic, and the top of concrete protective cap is equipped with the spillway hole, and sealed glue of the resistant time of silicone is paintd at the top of concrete protective cap. This precast reinforced concrete component adopts large -scale production, mainly uses the below ground at generating line bridge support, arrester, neutral point, is used for supporting the stability of steel framework, prevents that the member from taking place to warp, uniform settlement not, guarantees ...