183 results about "Oil viscosity" patented technology

The invention discloses a paper-plastic mold positioning auxiliary system capable of monitoring hydraulic pressure in real time through an AI. The paper-plastic mold positioning auxiliary system comprises an AI control center, a hydraulic monitoring unit, an air pressure monitoring unit, a positioning auxiliary execution unit, an abnormity protection unit and a data acquisition and transmission module. The hydraulic monitoring unit is used for collecting hydraulic oil cylinder pressure, temperature, hydraulic oil viscosity and equipment operation duration data; the air pressure monitoring unit collects air pressure, flow and valve delay time data of a pipeline valve; the data acquisition and transmission module transmits data to the AI control center, and the AI control center analyzes abnormity through a model and calculates a correction amount; the positioning auxiliary execution unit coordinates the positioning of the servo motor and the hydraulic oil cylinder; and the abnormal protection unit receives the early warning and starts a protection action. The system solves the problems of hydraulic monitoring lag and the like, realizes hydraulic and air pressure cooperative monitoring and positioning compensation, ensures production coherence and equipment safety, and is adaptive to automatic production of paper-plastic molds.

The application discloses a thickened oil viscosity reducer for a main viscosity contribution component of colloid and a preparation method thereof. The thickened oil viscosity reducer comprises the following components in percentage by weight: diethylene glycol methyl ether 25-35%, propylene glycol formate 15-25%, dispersant 5-8%, chelating agent 2-4%, anti-coking agent 0.5-1%, anti-swelling agent 1-2% and corrosion inhibitor 1-2%; and the balance is water. The application is a polar + non-aromatic hydrocarbon solvent system; completely avoids high-risk substances such as nonylphenol polyoxyethylene ether, petroleum sulfonate sodium and organic chlorine; is designed in pertinence and can effectively inhibit metal-induced asphaltene bridging; can withstand working conditions from normal temperature to 250 DEG C and up to 300 DEG C; thermal stability is significantly enhanced, and residual carbon after aging is lower than 8%; viscosity reduction efficiency is higher; the system is more stable, flexible in compounding and suitable for field construction.

The invention relates to the technical field of heavy oil reservoir exploitation, in particular to a device and a method for realizing viscosity-reducing huff-puff exploitation of heavy oil by injecting natural gas into a well and pressurizing. According to the technical scheme, a gas supply pipeline is tripped into an annular space between a sleeve and a pump cylinder, the upper end of the gas supply pipeline is connected with a natural gas injection device on the ground, and the lower end of the gas supply pipeline is communicated with a gas inlet of an underground natural gas booster pump; a gas injection packer is installed on the lower middle side of a pump cylinder, an oil inlet hole is formed in the pipe wall of the lower side of the gas injection packer, and the lower end of the gas injection packer is connected with an underground natural gas booster pump through a transition adapter. The device has the advantages that the pressure of natural gas can be increased in a relay mode, the natural gas is dynamically mixed and dissolved in thickened oil, the viscosity of the natural gas is remarkably reduced, the natural gas is increased along with volume expansion, flowing to a shaft is facilitated, in addition, the foam oil effect can be formed, and the functions of reducing viscosity and increasing yield of a thickened oil reservoir are achieved; and the total operation cost is lower than the steam thermal recovery cost, and the safety is also greatly improved.

The invention discloses a method for predicting the remaining service life of a control moment gyroscope based on parameter fusion, and relates to the technical field of health management of spacecraft attitude control systems. According to the method, optimal fusion of measurement parameters and implicit parameters is realized through adversarial learning feature extraction and a channel attention mechanism, and the method is particularly suitable for high-precision residual life prediction of the spacecraft control moment gyroscope under variable working conditions. The method comprises four main steps of data preparation and multi-source input, adversarial learning feature extraction, SE-Attention feature fusion and three-stage training optimization. In the data preparation step, original time sequences of voltage and current of a rotor motor are collected through a built-in electrical sensor of a CMG, and key physical parameters of a full-film lubrication friction coefficient, lubricating oil viscosity, a bearing clearance and contact stiffness are inverted based on an electromechanical coupling model; in the adversarial learning step, a game framework of a feature extractor and a working condition discriminator is constructed, and working condition-independent robust feature extraction is realized through a gradient inversion layer; in the SE-Attention feature fusion step, importance weights are adaptively distributed to different feature channels through an extrusion-excitation mechanism; and the three-stage training optimization step adopts a preheating-confrontation-fine tuning strategy to ensure the network convergence. The method solves the problem of domain adaptation, has the technical advantages of strong robustness, high precision, strong generalization, interpretability and self-adaptation, and can realize high-precision RUL prediction under variable working conditions.

The invention provides a multi-mode temperature control method and device, a vehicle and a computer readable storage medium, and relates to the technical field of temperature control, and the method comprises the steps: obtaining the real-time temperature values of a plurality of regions in a speed reducer, and the temperature of a reference temperature measurement point of an oil pool region at the bottom of the speed reducer; calculating a thermal field gradient difference value; when any thermal field gradient difference value is larger than a preset temperature gradient threshold value, the initial rotating speed of the oil pump motor is subjected to compensation adjustment according to the thermal field gradient difference value, and the compensation rotating speed is obtained; the oil viscosity value of the speed reducer is obtained, and when the oil viscosity value is smaller than a preset viscosity threshold value, the compensation rotating speed is further subjected to compensation adjustment, and a target rotating speed is obtained; controlling the oil pump motor to operate according to the target rotating speed to adjust the flow speed of cooling liquid flowing to the speed reducer, and achieving temperature regulation and control of the speed reducer. According to the method, the temperature field distribution characteristics and the oil physical state are combined to perform double compensation on the initial rotating speed, and temperature regulation and control are performed on the speed reducer based on the compensated target rotating speed to realize effective heat dissipation.

The invention relates to a mixed oil viscosity prediction method based on a residual physical guidance neural network, and relates to the technical field of oil and gas gathering and transportation. The method comprises the following steps: acquiring crude oil samples mixed in different proportions, acquiring a component characteristic factor and viscosity high-correlation data set, and performing sample enhancement through a generative adversarial network (GAN) to generate synthetic data conforming to a physical law; processing time sequence data by adopting a gating cycle unit (GRU), and optimizing network hyper-parameters by utilizing an adaptive genetic algorithm (AGA); constructing a residual physical guidance neural network (PGNN) model, and combining physical model output with deep learning residual correction; and finally, dynamic prediction and visual output of the viscosity of the mixed oil are realized. The method effectively solves the problems that a traditional empirical formula is insufficient in precision, a pure data driving model is poor in generalization ability and inconsistent in physics, is suitable for real-time viscosity soft measurement and closed-loop control under the complex oil mixing working condition, and is beneficial to efficient transportation of mixed crude oil.

A device for reducing viscosity and dissolving incrustations in pipelines comprising a central tube comprising two ends and one or more external threads at the two ends for coupling, a conical reduction, a protective jacket, and one or more spacer rings. The central tube is fixed to an orifice of the conical reduction by one or more weld fillits. The conical reduction comprising one or more permanent magnet collars and are internal to the protective jacket, the protective jacket is fixed to the conical reduction via a hole fully penetrating the one or more weld fillits. The one or more spacer rings, without a megnetic field dress the central tube, positioned juxtaposed to the one or more permanent magnet collars so that the ends of the one or more spacer rings are fixed to the central tube to preserve the location of the one or more spacer rings.

The application discloses a kind of bifunctional thick oil catalytic viscosity reduction system and viscosity reduction method, bifunctional thick oil catalytic viscosity reduction system is adjusted to be the catalytic-emulsion composite viscosity reduction system of mixed catalyst, oxidizing agent after using surfactant, wherein, catalyst is amphiphilic TM / C-NH2 Nanoparticle, the oxidizing agent is organic peroxide.Catalytic-emulsion composite viscosity reduction system is mixed with thick oil and heated to reservoir environmental temperature reaction after, reaction is completed after finishing to thick oil viscosity reduction.The application is configured into the catalytic-emulsion composite viscosity reduction system of water-in-oil by organic peroxide oxidizing agent compound emulsifier, in reservoir environment (50~180 DEG C), using the catalytic oxidation performance of catalyst viscosity reduction system and catalyst and oxidized oil oxygen-containing group adsorption self-assembly function, realize thick oil macromolecule depolymerization and wettability reverse, further improve the viscosity reduction efficiency.

The invention provides an engine oil pressure control method and device, a vehicle and a storage medium, and relates to the technical field of engine lubricating systems. According to the method, on the basis of the engine oil viscosity of the engine at the current moment, the surface movement speed of each friction pair in the engine and the preset minimum oil film thickness of each friction pair, the theoretical minimum engine oil pressure of a main oil duct is calculated, the system oil supply pressure is reduced as much as possible on the premise that lubrication safety is guaranteed, the driving power of an engine oil pump is remarkably reduced, and the service life of the engine is prolonged. The fuel economy of the engine can be improved; then, the theoretical minimum engine oil pressure is adjusted in combination with future working condition information of the vehicle, the target engine oil pressure is obtained, the target engine oil pressure has perspectiveness, upcoming load changes can be responded in advance, and the pressure fluctuation problem under the transient working condition is effectively relieved; and finally, according to the deviation between the target engine oil pressure and the actual engine oil pressure of the main oil duct, the displacement of the engine oil pump is adjusted, and closed-loop accurate control over the engine oil pressure is achieved.

The invention relates to the technical field of oilfield chemistry, in particular to a nano-composite viscosity reducer, a preparation method, application and a high-viscosity thick oil viscosity reduction method. According to the preparation method, the nano composite viscosity reducer is prepared from a surface-modified nano oxide and an amphiphilic polymer through a solvent exchange method; the nano oxide is nano silicon dioxide nano particles, zinc oxide nano particles or ferric oxide nano particles, and the amphiphilic polymer is a partial esterification product of a styrene-maleic anhydride copolymer or an octadecyl acrylate-methacrylic acid copolymer. According to the preparation method, the viscosity reducer not only can efficiently disassemble a colloid asphaltene network structure, but also has a certain catalytic modification function, does not influence subsequent treatment of crude oil, and has the advantages of high viscosity reduction efficiency, lasting effect, no formation of stable emulsion, shear resistance, good temperature resistance, strong universality and the like.

The application provides a device and method for simulating low-efficiency water drive thick oil viscosity reduction composite drive enhanced oil recovery, which comprises an injection system, a three-dimensional large-size sand filling model, a multi-well back pressure measurement and control system and a multi-well flow metering system. The injection system is connected to the three-dimensional large-size sand filling model, and fluid is injected into the three-dimensional large-size sand filling model which can simulate well pattern mode. The multi-well back pressure measurement and control system is connected to the three-dimensional large-size sand filling model, and the formation pressure is set. The multi-well flow metering system is connected to the three-dimensional large-size sand filling model, and the output fluid is metered. The device and method for simulating low-efficiency water drive thick oil viscosity reduction composite drive enhanced oil recovery can meet the enhanced oil recovery experiments of water drive, polymer drive, viscosity reduction drive, viscosity reduction composite drive and the like of three-dimensional large-scale heterogeneous reservoir models under different well pattern modes, and has important significance for the enhanced oil recovery of low-efficiency water drive thick oil reservoirs.

The present application relates to a kind of engine pre-oiling system and method, including main oil tank and auxiliary oil tank, main oil tank is sequentially connected with main oil passage by pipeline by oil pump;Auxiliary oil tank is connected with the outlet of oil pump by corresponding pipeline with main oil passage respectively, and the pipeline connected with the outlet of oil pump is equipped with first pre-oiling pump, and the pipeline connected with main oil passage is equipped with second pre-oiling pump, and heating device is equipped on auxiliary oil tank.By increasing auxiliary oil tank and the pipeline and oil pump matched, the oil passage pressure fluctuation when engine is started first or normally is used to inject lubricating oil into auxiliary oil tank, so that when the viscosity of engine oil is increased in low temperature environment, the lubricating oil in auxiliary oil tank can be heated by heating device and sent into main oil passage, to avoid the problem of dry grinding, lubrication and damage caused by the influence of oil viscosity in bearing region.

A new type of oil cavity recess type static and dynamic pressure thrust bearing, with the development of high speed heavy load cutting technology, heavy equipment gradually to high speed heavy load development, we are more and more high performance requirements of static pressure thrust bearing, but with the increase of speed and load, the lubricating oil film because of the action of shear force and extrusion force, shear heat increases, oil film thin, even in local tribology failure phenomenon, and bearing because of local overheating deformation, resulting in lubricating oil leakage, and lubricating oil viscosity decreases, will produce static pressure loss, therefore, the patent puts forward a new type of oil cavity recess type static and dynamic pressure thrust bearing, so that the static pressure thrust bearing work, oil cavity and rotary workbench guide surface between the total wedge gap, under the condition of rotary workbench high speed rotation, meet the conditions of dynamic pressure effect, use dynamic pressure effect, through the dynamic pressure to make up for the lack of static pressure bearing capacity, in order to achieve the purpose of improving the bearing capacity and stability.

The multi-cylinder high-pressure and high-viscosity oil delivery pump comprises a pump body, an upper cover is arranged above the pump body, an oil inlet main opening is formed in the upper cover, and a hollow spiral connecting rod is inserted into the oil inlet main opening; a plurality of vertical cylinders are arranged on the periphery of the main oil inlet in the upper cover, and piston rods of the vertical cylinders are connected with the upper cover of the one-way valve in the pump body through z-shaped connecting rods; the periphery of the pump body is connected with a plurality of oil pumping cylinders. The problems that the temperature of conveyed crude oil is reduced, oil viscosity is large, and pumping is inconvenient are effectively solved, the structure is compact, it is guaranteed that the crude oil can be completely pumped out through the six evenly-distributed vertical cylinders and the six evenly-distributed oil pumping cylinders, and the conveying efficiency of the crude oil is greatly improved.

The invention discloses a monitoring method and device for transmission lubricating oil, and relates to the technical field of transmissions.The method comprises the steps that the rotating speed of an electric oil pump of a transmission is obtained, and the oil flow and oil granularity information of the output end of the electric oil pump are obtained; according to the rotating speed and the oil flow, the viscosity value of transmission lubricating oil is calculated, and the number of particles is determined according to the granularity information; and if the viscosity value reaches a preset viscosity threshold value or the number of the particulate matters reaches a preset cleanliness requirement threshold value, replacement information of transmission lubricating oil is generated and sent to a vehicle control unit. Therefore, according to the method, the viscosity value and the particulate matter number of lubricating oil are calculated by obtaining the rotating speed of an electric oil pump of a transmission, the oil flow of the output end and granularity information, and when the viscosity value reaches a preset viscosity threshold value or the particulate matter number reaches a preset cleanliness requirement threshold value, lubricating oil replacement information is generated and sent to a vehicle control unit; the technical effects of improving the monitoring safety, simplifying the structure and improving the monitoring accuracy can be achieved.

The invention discloses a circulating water winter energy-saving and constant-temperature automatic control unit which comprises a temperature controller, a fan automatic control primary loop, a fan automatic control secondary loop and a temperature sensing probe, and the temperature sensing probe is electrically connected to the temperature controller. The fan manual start-stop primary loop comprises a first manual operation loop air switch, a first contactor, a first thermal protection relay and a cooling tower fan motor which are sequentially connected. The fan manual start-stop secondary loop comprises a U21 which is sequentially connected with an FR, a second stop button switch, a first start button switch and a self-protection loop contactor normally open contact KM1. According to the invention, low temperature and cold wind in winter, return water heat and control of the temperature controller are ingeniously utilized, so that the temperature of circulating water is in a set dynamic balance, energy consumption is reduced, the hydraulic oil temperature of the injection molding machine is improved, the viscosity of the hydraulic oil is reduced, the fluidity of the hydraulic oil is improved, and equipment is in a more excellent operation state.

The application discloses an integrated buffer seal engineering machinery oil cylinder and relates to the technical field of oil cylinders, which comprises a cylinder body, a piston and a piston rod, a buffer seal assembly is arranged outside the piston, the buffer seal assembly comprises a buffer column arranged at the front end and two lip-shaped sealing rings, a base is arranged at the bottom of the cylinder body, a buffer groove is formed in the base, and a throttle hole is formed in the base. The integrated design of the buffer and the sealing structure achieves multistage attenuation of impact load, dynamic adjustment of sealing force and self-adaptive control of oil flow, the cylinder hydraulic pressure dynamically adjusts the throttle hole diameter, cooperates with the multistage buffer structure, and reduces the impact pressure; meanwhile, the temperature self-adaptive flow control system can intelligently adjust the flow rate according to the change of the hydraulic oil viscosity, actively enhances the sealing tightness under high-temperature working conditions, effectively inhibits leakage, automatically optimizes the starting parameters in a low-temperature environment, and improves the equipment response speed.

This invention provides a gear power transmission device for a speed reducer, relating to the field of gear reducer technology. The device includes a speed reducer body and an intelligent monitoring and self-cleaning system mounted on a base plate. This invention, through real-time monitoring of multiple parameters such as oil viscosity, abrasive particle concentration, and morphology, can accurately capture early anomalies and effectively distinguish wear types. After diagnosing anomalies, it can automatically purify the lubricating oil online, removing harmful abrasive particles without stopping the machine, effectively extending the lifespan of the oil and equipment. The highly integrated multi-functional modules within a unified detection box result in a compact structure, improving the overall reliability of the system and avoiding the looseness and unreliability issues of external structures in harsh industrial environments, thus enhancing the intelligence level of fault diagnosis. The introduction of machine learning-based automatic particle morphology recognition technology replaces offline analysis relying on professionals, lowering the technical threshold and making fault diagnosis more intuitive and efficient.

The application discloses a dynamic sealing structure and design method of a rotor device, and belongs to the field of rotor devices used for fluid mechanics experiments. The structure comprises a rotor inner cylinder, a rotor outer cylinder and a rotor cover plate with an annular partition. The chamber between the rotor cover plate and the upper edge of the rotor inner cylinder is divided into a first gap and a second gap which are axially adjacent by the partition, and a super-hydrophobic coating is sprayed on the solid wall surface between the two gaps and below the second gap to retain a drag-reducing gas film. The two gaps are respectively filled with sealing oil which has different viscosities, is insoluble in water and has a smaller density than water, forming a layered seal. The application also provides a corresponding design method, which optimizes the sealing structure parameters by establishing an additional torque model and setting the constraints of the rotor speed, the sealing oil viscosity and the sealing oil density. T 0> 50 T 3, can effectively prevent fluid leakage and gas intrusion at high speed rotation, and controls the additional torque introduced by the seal to be below 2% of the main torque, thereby significantly improving the accuracy of high-precision fluid friction torque testing.

This invention provides a method for preparing a high-salinity zinc oxide-resistant nanofluid mediated by Halomonas sp. and its application in enhancing oil recovery. Specifically, it includes: a Halomonas sp. strain CDH-2, with accession number CCTCC NO: M 2025786, which can rapidly grow in high-concentration salt solutions and produce salt-resistant extracellular metabolites. Fermenting and culturing CDH-2 under high-salt conditions yields a fermentation broth with a surface tension below 30 mN / m. Mixing and culturing the obtained fermentation broth with a metal precursor solution yields a high-salinity-resistant metal nanofluid. The resulting metal nanofluid maintains good stable dispersibility in high-salinity water and effectively reduces oil-water interfacial tension. It alters the wettability of oil-wetting surfaces, emulsifies and disperses crude oil, and reduces crude oil viscosity. Therefore, it can be used as an enhanced oil recovery agent in high-salt reservoirs and is widely applied in oilfield flooding, well huff and puff, and heavy oil viscosity reduction.

The utility model relates to the technical field of crude oil sludge treatment, in particular to an oil-water separation tank for reduction treatment of crude oil sludge, which comprises a main body, and the top of the main body is fixedly connected with a treatment component; the heating temperature of the electric heating wire is monitored and controlled through the temperature sensor, the viscosity of oil can be remarkably reduced through heating, the oil can be separated from water more easily, the density difference of the oil and the water can be increased through heating, separation is further promoted, meanwhile, separation and discharge of corrosive components can be promoted through heating, and the oil-water separation efficiency is improved. The variable frequency motor is used for driving the stirring blades on the stirring rod to stir the crude oil sludge, so that solid particles in the crude oil sludge can be kept in a suspended state and are prevented from quickly settling to the bottom to form a heavy deposition layer, and the utilization rate of the equipment is increased; by adopting the variable frequency motor for driving, the stirring speed can be adjusted according to the characteristics of crude oil sludge.

The utility model belongs to the technical field of deep processing of coal tar, and particularly relates to a decrystallized anthracene oil production system which comprises a main decrystallized anthracene oil tank, and a main feeding pipe, a main discharging pipe and a main discharging pump which are arranged on the main decrystallized anthracene oil tank, the auxiliary feeding pipe, the auxiliary discharging pipe and the auxiliary discharging pump are arranged on the auxiliary anthracene removal tank; and the mixing tank is connected with outlets of the main feeding pipe and the auxiliary discharging pipe. Cooling, crystallizing and centrifugally separating anthracene oil extracted from the bottom of the tar rectifying tower to obtain decrystallized anthracene oil and crude anthracene; and removing anthracene, phenanthrene, carbazole and the like in the crude anthracene through subsequent refining to obtain heteroanthracene-removed oil. Generally, the viscosity of impurity-removed anthracene oil is large, the viscosity of de-crystallized anthracene oil is small, the impurity-removed anthracene oil and the de-crystallized anthracene oil are conveyed into a mixing tank through a main discharging pipe and an auxiliary discharging pipe respectively and mixed in the mixing tank, and the feeding amount of the impurity-removed anthracene oil and the feeding amount of the de-crystallized anthracene oil are adjusted by adjusting the flow of a main discharging pump and the flow of an auxiliary discharging pump, so that the viscosity of mixed liquid (mixed anthracene oil) in the mixing tank is adjusted; therefore, the viscosity requirements for different purposes can be met.

The present application belongs to the field of oilfield chemistry and workover engineering process, and discloses a stratum working fluid for thick oil viscosity reduction, a working system, a preparation method and application thereof. The stratum working fluid for thick oil viscosity reduction comprises the following components by weight: 60-91 parts of water, 1-5 parts of anti-swelling agent, 5-20 parts of stratum cleaning agent and 3-15 parts of thick oil viscosity reducer. The working system for thick oil viscosity reduction comprises the above-mentioned stratum working fluid and a wellbore working fluid for cleaning dead oil in the wellbore. The stratum working fluid of the present application reduces the viscosity of crude oil in the near wellbore zone through viscosity reduction and dispersion, wetting drag reduction and surfactant assisted cleanup, reduces organic plugging, and has little corrosion to the pipe string. When the working system of the present application is applied, the soak time is greatly shortened, the entire construction process can be completed within three days, the construction period is greatly shortened, and the production efficiency is improved.

The invention discloses a dynamic threshold adaptation alarm method and system for wind power remote monitoring, and the method comprises the steps: determining the aging degree of a wind turbine generator according to the historical vibration frequency of the wind turbine generator, and determining the environmental influence weight of each season on the wind turbine generator according to the historical operation temperature and historical lubricating oil viscosity of the wind turbine generator; obtaining the current influence weight of the current season on the wind turbine generator according to the environment influence weight; and then optimizing a preset alarm threshold value according to the current influence weight and the aging degree of the wind turbine generator set to obtain an optimized alarm threshold value, and judging whether the wind turbine generator set is abnormal or not according to the optimized alarm threshold value and real-time detection data of the wind turbine generator set. According to the technical scheme, in the process of alarming the wind turbine generator, the influence of the equipment aging condition and the seasonal change of the wind turbine generator is considered at the same time, so that compared with the prior art, the accuracy and the reliability of alarming the abnormity of the wind turbine generator can be improved.

The invention provides an oil liquid detection method, electronic equipment, a vehicle and a storage medium, the method is applied to the technical field of transmission maintenance, and the method comprises the steps that the current oil liquid flow velocity corresponding to a target oil duct in a target transmission is detected; calculating a first oil viscosity value according to the current oil flow rate; a standard oil viscosity value and a standard deviation value corresponding to the current working parameters are determined, the standard deviation value refers to the deviation between the standard oil viscosity value and a theoretical oil viscosity value corresponding to the current working parameters, and the standard oil viscosity value is obtained in a direct measurement mode in a standard experimental environment; the theoretical oil viscosity value is obtained in a theoretical calculation mode in a standard experimental environment; and determining the oil quality state of the target transmission according to the standard oil viscosity value, the standard deviation value and the first oil viscosity value. According to the method, the quality oil of the transmission can be effectively evaluated, so that accurate oil maintenance suggestions can be provided.

The invention relates to the technical field of oil exploitation aids, and particularly discloses a nano thick oil viscosity-reducing blocking remover and a preparation method thereof. The invention relates to a nano thick oil viscosity-reducing blocking remover, which is prepared from the following raw materials in parts by weight: 10 to 18 parts of mineralized modified nano silicon carrier, 10 to 14 parts of cross-linked fluorocarbon surfactant, 0.1 to 0.3 part of polyacrylamide, 1 to 3 parts of styrene-acrylic isothiazolinone and 55 to 75 parts of deionized water, the mineralized modified nano silicon carrier is prepared by taking nano silicon dioxide as a core and growing a hydroxyapatite-titanium dioxide composite shell layer on the surface of the core through a mineralization process. The long-term stability of the viscosity reduction effect of the viscosity reduction blocking remover in the high-temperature and high-salt environment is effectively enhanced, and the long-term service stability of the viscosity reduction blocking remover in the deep reservoir environment is comprehensively improved.

This utility model relates to the field of lubricating oil viscosity measurement technology, specifically disclosing an industrial lubricating oil viscosity measuring device, including a measuring cylinder. A stirring assembly is installed inside the measuring cylinder, and a circulating cooling water pipe is fixedly embedded inside the measuring cylinder. Both the input and output ends of the circulating cooling water pipe penetrate the measuring cylinder and are connected to connectors. A protective shell is connected to the outer surface of the measuring cylinder. By using multiple sets of measuring cylinders, a speed measuring tube, and a timer, the viscosity can be calculated by measuring the falling time of multiple small balls in the oil sample, thus achieving effective measurement of lubricating oil viscosity. Furthermore, the internal components of the measuring cylinder—an electric heating plate, a ring-shaped cooling water pipe, connectors, and a PLC control panel—can be used to heat or cool the inside of the measuring cylinder, achieving temperature control of the lubricating oil. Simultaneously, the stirring assembly can agitate the lubricating oil, ensuring temperature uniformity and facilitating accurate measurement of the lubricating oil viscosity.

This utility model relates to the field of hydraulic oil testing technology for engineering machinery, specifically a hydraulic oil oxidation life testing device. The device includes a main body with an outer frame. An equipment cavity is formed inside the outer frame, and an oil tank is fixed to the bottom of the equipment cavity. In this utility model, during a circulation simulation process in a circulating pipeline, a plunger pump, in conjunction with this testing device, can simulate the operating conditions of engineering machinery equipment. Hydraulic oil oxidation durability tests are conducted under high temperature, high pressure, ventilation, and the presence of a Cu catalyst. By examining indicators such as changes in oil viscosity, increase in acid value, sludge formation, and remaining oxidation life, the device can monitor the performance change trend during oil degradation, comprehensively evaluate the oxidation durability of the hydraulic oil, predict the service life of the oil in the equipment, thereby reflecting the true lifespan of the oil, improving evaluation efficiency, and also enabling comparative experiments with multiple samples, which is more conducive to the screening of oil formulations.

The application discloses an oilfield production wellhead liquid production metering device, and belongs to the oilfield production field. The device comprises a filter kettle, a filter box is fixedly connected below the filter kettle, a conveying pipe is fixedly connected to the right side of the filter kettle, a tank body is fixedly connected to the outer surface of the conveying pipe, a rotating shaft is penetrated through the conveying pipe and is in sliding connection with the conveying pipe, the rotating shaft is penetrated through the upper side of the tank body and is in rotary connection with the tank body, a driving piece is arranged at the lower end of the rotating shaft, a support frame is fixedly connected to the left side of the tank body, and a rotating rod is penetrated through the upper side of the support frame and is in rotary connection with the support frame. The metering piece is arranged in the tank body to measure the liquid production. If the oil viscosity is low when the oil is conveyed from the conveying pipe to the tank body, the driving piece is rapidly rotated by the impact, the centrifugal piece is driven to pull the hydraulic piece, the buffer sheet is moved to the lower end of the conveying pipe, and the buffering effect is achieved to reduce the error caused by the liquid level meter floating due to the waves.

The application discloses in-situ growth coated catalytic proppant and a preparation method and application thereof, and the preparation method of the proppant comprises the following steps: dispersing a proppant matrix in a salt solution containing one or more transition metal precursors to form a solid-liquid suspension system; adding a precipitator to the suspension system to induce in-situ heterogeneous nucleation and growth of the metal precursors on the surface of the proppant matrix, thereby forming a precursor-coated proppant with a core-shell structure; and performing high-temperature calcination on the precursor-coated proppant to obtain the in-situ growth coated catalytic proppant. The application utilizes in-situ growth and high-temperature reactivity sintering technology to construct a firm high-entropy ceramic catalytic film on the surface of the proppant, thereby solving the problems that a traditional impregnated proppant coating is easy to fall off and has poor temperature resistance; meanwhile, the high-entropy effect and lattice oxygen vacancies are utilized to achieve a technical breakthrough that the proppant can efficiently catalyze thick oil viscosity reduction without an organic modifier.