88 results about "Apparent viscosity" patented technology

The invention provides a method for identifying a microscopic association body structure in a heavy oil molecule simulation trajectory, which comprises the following steps of: analyzing a molecular dynamics trajectory, identifying an aromatic ring structure in a heavy oil molecule component, calculating a geometric center of the aromatic ring structure, combining a periodic boundary condition, and applying an improved DBSCAN clustering algorithm to realize automatic identification and clustering of an association body; and performing post-processing optimization on the clustering result, merging the shared clusters to generate a final association body set, and analyzing the number, size distribution, morphological characteristics and dynamic evolution information of the association bodies based on the structural characteristics of the final association body set. The method can accurately capture pi-pi accumulation behaviors of heavy oil molecules, further reveals morphological characteristics and dynamic evolution laws of heavy oil microassociates and influences of the heavy oil microassociates on the apparent viscosity of heavy oil, provides theoretical support for heavy oil viscosity-causing mechanism analysis and viscosity reducer design, can complement experimental research, and has a wide application prospect. And efficient development and green utilization of a complex thickened oil system are promoted.

The invention provides a thixotropy quantitative characterization method of lithium slag-tailings cemented filling slurry, and relates to the technical field of metal ore remaining tailings and lithium slag treatment. Comprising the following steps: preparing to-be-tested slurry and setting test parameters; starting a rheometer to test the to-be-tested slurry to obtain multi-stage thixotropic data of the to-be-tested slurry; according to the multi-stage thixotropic data, constructing a curve of the apparent viscosity changing along with the test time; carrying out data fitting on the curve by adopting a thixotropic quantitative characterization method so as to obtain specific fitting parameters and a flocculation rate; calculating the thixotropy of the slurry by using a structural recovery rate formula; and analyzing and characterizing the thixotropy of the slurry by using the obtained structure recovery rate and flocculation rate to obtain a characterization result. The problem that in the prior art, the thixotropy experiment result is low in accuracy is solved.

The invention relates to the field of pharmaceutical engineering and automatic control, in particular to a reaction kettle for synthesizing a medical intermediate and an intelligent control method of the reaction kettle. The reaction kettle comprises a reaction kettle main body, a stirring assembly integrated with a dynamic torque sensor and a thermotechnical pipeline assembly, the system firstly executes no-load calibration to draw a mechanical friction loss curve and a heat transfer coefficient map; deducting friction reference inversion apparent viscosity by using real-time torque during operation, and judging a reaction stage in combination with a reaction heat rate; then dynamic heat balance control is executed, and a medium temperature change compensation strategy or a rotating speed shearing strategy is selected to be executed according to the heat transfer deviation; the method is characterized in that high-precision viscosity inversion is achieved by eliminating mechanical friction interference, the polymerization degree or the crystallization state is visually monitored on the premise that the closed environment is not damaged, and the problem that the reaction process is invisible in the prior art is solved.

The invention discloses an accurate temperature control method and system for regeneration and recovery of injection molding products, and relates to the field of temperature control. The method comprises the following steps: analyzing regenerated plastic components in real time through a near-infrared spectrometer, and obtaining a melt index, a thermal stability parameter and a glass transition temperature; establishing a melt apparent viscosity-temperature-shear rate three-dimensional response curved surface model in combination with a rheology theory; the method comprises the following steps: acquiring temperature gradient and pressure data by utilizing a multi-sensor network deployed in each module of a double-screw extruder, calculating an actual shear rate and melt apparent viscosity, and comparing the actual shear rate and melt apparent viscosity with theoretical values to trigger a PID (Proportion Integration Differentiation) neural network to predict temperature fluctuation so as to carry out differential temperature compensation on a feeding section and a melting section; and after each batch of production, model parameters are optimized by adopting a least square method, so that closed-loop intelligent regulation and control in the processing process of the regenerated plastic are realized. The method has the advantages that through the three-dimensional model, the PID neural network differential temperature control is combined, the temperature control problem of the regenerated plastic is solved, the quality stability of products is improved, and the waste rate is reduced.

Embodiments of the present disclosure generally relate to apparatus and methods for foam generation, and to apparatus and methods for evaluation of foam systems. In an embodiment, a method of analyzing foam properties includes delivering a foaming composition and a gas to a housing at a pressure of 500 psi to 6,000 psi and a temperature of 35° C. to 150° C., the housing containing an unconsolidated porous media. The method further includes flowing the foaming composition and the gas through the housing, and forming a foam by an interaction of the foaming composition, the gas, and the unconsolidated porous media. The method further includes directing the foam from the housing to a visualization chamber, the visualization chamber in fluid communication with the housing, and measuring a foam characteristic via the visualization chamber. The characteristic may include foam half-life, pressure drop through the unconsolidated media, and / or apparent viscosity of the foam.

The invention relates to the technical field of sludge resource utilization, and discloses a sludge alginate recovery control system and method based on reinforcement of traditional Chinese medicine leach liquor, and the system comprises a biological reaction unit, a sensing monitoring and feedback network, a precise adding execution unit and a central control unit. The method comprises the following steps: calibrating a reference oxygen consumption rate by measuring a dissolved oxygen decline slope; executing tentative induction, judging the sludge sensitivity according to the descending and rising characteristic waveforms of the oxygen consumption rate, and implementing pulse addition; the change of the stirring torque is monitored in real time, a high-shear stripping action is triggered in an apparent viscosity increasing plateau stage, and the mass transfer resistance of a gel layer is eliminated; and the reaction endpoint is locked by combining the oxygen consumption rate ratio falling and the oxidation-reduction potential mutation. According to the method, accurate adding of the inducer is achieved through respiratory dynamics feedback, a solid-liquid interface is updated through rheological driving shearing, the problems that mass transfer is limited and end point judgment is delayed due to product wrapping are solved, and the recovery efficiency of the alginate-like salt is improved.

The present application relates to a kind of slurry purification method and device, belong to slurry purification technical field, by adding breaker and combining oxidation / acidolysis and thermochemical treatment, the stable structure of colloidal particle is destroyed, the microfine particle wrapped is released, further using helical path partition addition surfactant, ensure that reagent is evenly spread in combination with stirring, significantly reduce slurry apparent viscosity and improve fluidity.Afterwards, using the centrifugal-shear synergistic effect of high-speed centrifuge and hydrocyclone strengthens particle separation efficiency, shortens residence time and inhibits the risk of laminar flow blockage;While applying electric field drives charged particle to be enriched to electrode area.Finally, through the deep dehydration process of filter aid auxiliary, realize that slurry moisture content is greatly reduced, this integrated process not only reduces the hydrodynamic resistance and processing volume expansion, also significantly alleviates the laminar flow resistance, wear and frequent blockage problem of pipeline and equipment.

The application discloses a kind of based on three-dimensional phase diagram straight writing line topography regulation and control method, device, equipment and medium, it is related to printing technical field, comprising: by obtaining the rheological test result of different viscosity ink, printing process parameters and line form characterization data, apparent viscosity and boundary parameter are obtained by integration and power law fitting, construct with normalized height, normalized velocity, apparent viscosity as three-dimensional dimension process phase diagram, then by matching adaptive parameter or ink rheological property obtains target form.This introduces apparent viscosity as the third dimension, optimizes the limitation that two-dimensional phase diagram only adapts specific viscosity ink, quantifies the correlation of process parameters, rheological property and line form, only three core parameters can realize cross-ink system form accurate prediction and regulation, compatible with multiple viscosity inks, significantly reduce parameter optimization time consumption, avoid experience trial and error, accurately identify material process window, provide quantitative target for ink formula optimization, improve printing process adaptability.

This invention discloses a multi-dimensional blending method for heating lubricating oil. The method first initializes data such as the viscosity-temperature characteristic curve of the base oil, the dissolution activation energy of additives, and the thermal degradation threshold. Then, it constructs a multi-dimensional coupled model encompassing temperature, rheology, and time dimensions. The main heating unit maintains the base oil's basic flow temperature and performs low-speed pre-blending. During additive injection, an auxiliary heating unit rapidly heats the local fluid at the instantaneous optimal dissolution temperature calculated by the model. Apparent viscosity is calculated based on mixing torque feedback. Shear rate and heating power are dynamically adjusted according to the blending efficiency function. The blending endpoint is determined using a "viscosity-energy consumption" feedback loop, and parameters are optimized through an adaptive learning module. This method achieves efficient dispersion, energy saving, low thermal damage, and improves product mixing uniformity and batch quality stability.

The invention discloses a fluxing agent for replacing fluorite in iron and steel smelting and a manufacturing method thereof, and belongs to the field of iron and steel smelting. The fluxing agent for replacing fluorite is prepared by taking nepheline syenite containing various silicate minerals as a main material, crushing, adding a mixture taking bentonite and starch as a binder, adding water, uniformly mixing, then pressing into pellets with the diameter of 30-40mm by a machine, and airing and drying for use. Wherein the binder accounts for 3-5% by weight, is the same as fluorite, has the effects of reducing the melting point and apparent viscosity of the slag, improving the fluidity of the slag and reducing the iron loss of the slag, and can increase the alkalinity of molten steel and improve the quality of the molten steel. The ingredients overcome the defects of fluorite in iron and steel smelting, corrosion to a furnace lining of a melting furnace can be reduced, the health of workers is not harmed, pollution of slag to the environment can be reduced, and the post-treatment process of the slag is simplified, so that the treatment cost of the slag is reduced.

The application provides a method for identifying micro-aggregate structure in a heavy oil molecule simulation trajectory, which comprises the following steps: analyzing a molecular dynamics trajectory, identifying aromatic ring structures in heavy oil molecular components and calculating geometric centers of the aromatic ring structures, combining periodic boundary conditions, and applying an improved DBSCAN clustering algorithm to realize automatic identification and clustering of the aggregates; the clustering results are post-processed and optimized, the final aggregate set is generated after merging and sharing clusters, and the number, size distribution, morphological characteristics and dynamic evolution information of the aggregates are analyzed based on the structural characteristics of the aggregates. The method can accurately capture the pi-pi stacking behavior of heavy oil molecules, and further reveal the morphological characteristics, dynamic evolution law of heavy oil micro-aggregates and the influence of the micro-aggregates on the apparent viscosity of heavy oil, thereby providing theoretical support for the analysis of the viscosity-causing mechanism of heavy oil and the design of viscosity reducers, and complementing experimental research, and promoting the efficient development and green utilization of complex heavy oil systems.

The present application belongs to the technical field of cement grouting, and particularly relates to a method for determining the operable time of cement slurry. The present application is based on the test data of apparent viscosity of cement slurry with different water-cement ratios under different temperature and stirring time conditions and mechanical strength of stone body, combined with three-dimensional curved surface data analysis fitting method, to construct temperature-stirring time-apparent viscosity function relationship model and temperature-stirring time-corresponding age compressive strength function relationship model. Then, the longest stirring time for ensuring the flow performance of slurry and the longest stirring time for ensuring the mechanical strength of stone body with corresponding age are compared, and the smaller value is taken as the best operable time of slurry or the slurry abandonment time. The method provided by the present application can be used to guide the grouting engineering design, quickly determine, optimize and pre-evaluate the grouting construction parameters, and can increase the purposiveness of grouting design and construction, and effectively improve the quality of on-site grouting construction.

The invention discloses a three-dimensional phase diagram-based straight writing line morphology regulation and control method, device, equipment and medium, and relates to the technical field of printing, and the method comprises the steps: obtaining the rheological test results of inks with different viscosities, printing process parameters and line morphology representation data, and carrying out integration and power law fitting to obtain apparent viscosity and boundary parameters; a process phase diagram with normalization height, normalization speed and apparent viscosity as three dimensions is constructed, and a target form is obtained by matching adaptive parameters or ink rheological characteristics. In this way, apparent viscosity is introduced as a third dimension, the limitation that a two-dimensional phase diagram is only adapted to ink with specific viscosity is optimized, correlation among technological parameters, rheological properties and line forms is quantified, accurate prediction and regulation of the form of a cross-ink system can be achieved only through three core parameters, the method is compatible with ink with various viscosities, time consumed for parameter optimization is remarkably shortened, and the method is suitable for large-scale popularization and application. And experience trial and error are avoided, a material process window is accurately identified, a quantitative target is provided for ink formula optimization, and the adaptability of a printing process is improved.

This invention discloses a method for determining the drag reduction performance of a superhydrophilic coating, comprising the following steps: setting multiple different preset shear rates; setting multiple preset time periods; setting a preset spraying thickness of the superhydrophilic coating to be tested; obtaining multiple apparent viscosity benchmark values ​​of the oil sample under each preset shear rate; spraying the superhydrophilic coating of the preset spraying thickness onto the coaxial cylindrical rotor of a coaxial cylindrical viscometer, and generating a water ring on the surface of the superhydrophilic coating; obtaining multiple apparent viscosity comparison values ​​at each preset shear rate, measured by the coaxial cylindrical viscometer after being kept at a constant temperature for multiple preset time periods; for each preset shear rate, based on the comparison results of the apparent viscosity benchmark value and each apparent viscosity comparison value, determining the drag reduction performance and stability evaluation results of the superhydrophilic coating for the oil sample under that preset shear rate. This invention can effectively determine the drag reduction performance and stability of superhydrophilic coatings.

The application discloses a kind of fermentation data online batch cleaning label automatic processing method, it is related to fermentation data processing technical field, successively include: acquisition liquid phase sensing time sequence, gas phase tail gas sensing time sequence and stirring system active power and rotor torque, apparent viscosity is inverted and carries out gas phase elastic dead time compensation, obtains cross-modal joint time sequence flow;Determine mixing time based on apparent viscosity and calculate physiological-physical divergence, complete cleaning route and physical phase transition anchor point extraction;Based on physical phase transition anchor point, high-frequency time sequence flow and offline test blind area data are carried out physical information neural network deduction, obtain dense deduction data;Based on cumulative oxygen uptake, construct biological development time manifold and generate characteristic soft label, issue to control side.The method can improve the consistency of multi-source data alignment, noise elimination, blind area completion and stage labeling, enhance the overall reliability of fermentation data processing.

The application discloses a high-density composite fluid regulation method for pumped storage system, comprising: based on basic data, establishing system target function and constraint library containing machine stability index and shear-sedimentation coupling stability window constraint; generating time-varying three-control dynamic operation envelope according to unit and pipe network parameter library; receiving sensor data stream, analyzing combined characteristics such as machine side current harmonic and main loop pressure pulsation, and obtaining state vector containing apparent viscosity, density and other parameters through non-invasive online estimation; under the constraint of dynamic operation envelope, reverse optimization is carried out to generate joint schedule containing unit operation trajectory and fluid property target trajectory. The application puts fluid properties into active regulation category, realizes collaborative optimization of high-density energy storage medium and conversion equipment, and improves the economy, safety and dynamic response ability to power grid demand of system operation.

This invention belongs to the field of energy extraction equipment technology, and relates to a storable shot perforation fracturing device and method, including a tubing, a perforation fracturing tool string, a casing, and a cement sheath; the lower end of the tubing is connected to the upper end of the perforation fracturing tool string, which is installed in a cylindrical casing. A cement sheath is fitted on the outside of the casing, and the cement sheath is formed in the rock containing an oil and gas reservoir. The storable shot perforation fracturing device uses compressible gas for perforation fracturing; the device accelerates the shot through pressure differential and a long acceleration tube, increasing the jet destructive force, and the shot penetration can form a deeper perforation; during the fracturing process, pulse-induced low temperature and turbulence are used, which can increase the apparent viscosity of the fluid and reduce the proppant holding effect under the filtration pressure differential, thereby helping to solve the proppant carrying problem.

Provided are a sealing device capable of achieving both low torque and high sealability by improving grease applied to a seal lip and a mating member thereof, and a rotating component using the sealing device. A seal ring 14 is fixed to a fixed-side member 2 of a rotating component, is in sliding contact with a rotating-side member 15, and has a seal lip in sliding contact with the rotating-side member 15, grease being applied to a sliding contact surface of the seal lip, in which the grease contains a base oil, a thickener, and an additive, and an apparent viscosity of the grease at a shear rate of 1000 s-1 at 60°C is 0.22 Pa·s or more.

The invention discloses a circular flow method for normal-temperature conveying of thick oil through a horizontal circular pipe, and relates to normal-temperature conveying of the thick oil in a wide flow ratio by using dimethyl silicone oil and poly-alpha olefin oil as fluid for isolating the thick oil. The dimethyl silicone oil and the poly-alpha olefin oil are used as circulation media, the difference between the apparent viscosity of the circulation media and the thick oil at 25 DEG C and 5 s <-1 > is 50-300 times, the kinematic viscosity of the circulation media and the thick oil at the temperature of-20 DEG C is 500-3000 cSt, the pipeline temperature is the normal temperature of 25 + / -5 DEG C, and the wide flow ratio is that the volume flow ratio range of the thick oil and the circulation media is 0.5-4.0. According to the circulation flowing method for conveying the thick oil at the normal temperature through the horizontal circular pipe, stable circulation flowing can be formed in the hydrophilic circular pipe and the lipophilic circular pipe with the horizontal smooth inner wall through a simple device, the thick oil is prevented from adhering to the wall, and the flowing method which is low in energy consumption, not prone to instability and easy to separate subsequently is provided for long-distance pipeline conveying of the thick oil at the natural environment temperature.

The invention discloses a method for evaluating the dispersity of a graphene nano material in an asphalt matrix. The method comprises the following steps: step 1, preparing a graphene asphalt composite material; step 2, testing three indexes; 3, dynamic rheological property testing; step 4, testing apparent viscosity; and step 5, comprehensive evaluation. According to the evaluation method, the comprehensive dispersity index is calculated by combining the three indexes, the dynamic rheological property and the apparent viscosity, the dispersity of the graphene nano-material in the asphalt matrix is accurately and quantitatively evaluated, a complex microscopic test process is avoided, dispersion information of the nano-material in the asphalt matrix under large-scale production is rapidly provided, and the method is suitable for large-scale production. The method provides theoretical guidance for design, construction and management of the nano-modified asphalt mixture, and is suitable for the technical field of physical property evaluation of modified asphalt.

The present application relates to the technical field of water-based fracturing fluid, and is a kind of water phase suspension fracturing fluid and its preparation method, the water phase suspension fracturing fluid is prepared by using modified polyacrylamide as raw material, and then compounding cleanup agent, xanthan gum, suspending agent, organic matter and high mineralization water, which has high viscosity under high salinity.At the same time, the broken glue solution is obtained by adding the broken glue agent to the water phase suspension fracturing fluid, the broken glue time of the broken glue solution is less than 3h, the apparent viscosity of the broken glue solution is less than 5mPa·s, the surface tension of the broken glue solution is less than 28mN / m, and the interfacial tension between the broken glue solution and kerosene is less than 2mN / m, which all meet the requirements of industry standards, greatly improving the fracturing construction progress and effect.

The application discloses a low-temperature curing resin system suitable for heavy weight impregnation, a preparation method and application, relates to the field of composite materials, and raw materials of the low-temperature curing resin system include 50-70 parts of a first epoxy resin, 15-30 parts of an epoxy modified block polymer containing CTBN, 3-7 parts of a thickening agent, 1-3 parts of a defoaming agent and 6-21 parts of a curing agent in terms of weight percentage. The low-temperature curing resin system provided in the application is in a liquid state with low viscosity under room temperature conditions, can well impregnate heavy weight reinforcing materials under low-temperature conditions, can occur chelation reaction in the later standing process, can increase molecular chains, can increase apparent viscosity of the resin, can reach the resin viscosity for prepreg, can increase toughness of the resin system, and has good operability. The prepreg can be cured under a medium-low temperature environment (75-105 DEG C).

The application provides a kind of liquid food straw sucking difficulty prediction method based on rheological test, the characteristic flow curve of liquid food sample is measured by steady flow test, respectively Carreau-Yasuda model or Casson model (if it is yield type fluid) fitting is carried out, and the predicted flow Q of straw is calculated c , then Herschel-Bulkley model fitting is carried out, and the consistency index K h , power law index n, Herschel-Bulkley yield stress τ h (if it is yield type fluid) is obtained.According to the equation of pipe flow flow, τ R Is calculated and substituted into Herschel-Bulkley model, and the apparent viscosity corresponding to shear rate is obtained, then the prediction model is constructed to predict the liquid food straw sucking difficulty, replace the traditional sensory evaluation method, and provide new ideas for food enterprise research and development decision.

The invention discloses an environment-friendly self-adaptive rheology modifier and a preparation method and application thereof, and the preparation method comprises the following steps: dissolving a thermal response monomer, an ionic monomer and a crosslinking accelerator in deionized water, and adjusting the pH value to 7.0-8.0; the thermal response monomer is N-vinyl caprolactam; the ionic monomer is one or a mixture of acrylamide and sodium 2-acrylamide-2-methylpropanesulfonate; the ionic monomer is one or a mixture of acrylamide and sodium 2-acrylamide-2-methylpropanesulfonate; raising the temperature to 60-70 DEG C in an inert protection atmosphere, adding an initiator and a molecular weight control agent, and reacting for 4-6 hours at a constant temperature; pouring the reaction liquid into acetone to precipitate, and performing vacuum drying to obtain a white polymer; the lowest critical solution temperature of the obtained environment-friendly self-adaptive rheology modifier is 28-35 DEG C, the low-temperature apparent viscosity increase rate is smaller than or equal to 25% (2-10 DEG C), the high-temperature viscosity increase rate is larger than or equal to 30% (40-160 DEG C), the filter loss is smaller than or equal to 15 mL (API standard), the Zeta potential is smaller than or equal to-39.4 mV, the average particle size is larger than or equal to 3480 nm (containing 2% of bentonite-based slurry), and the environment friendliness is as follows: the biotoxicity is EC50gt; and 9 * 10 < 5 > mg / L.

This invention discloses an automatic control system and method for monitoring the viscosity of chemically synthesized hot melt adhesives, relating to the field of viscosity monitoring technology for chemically synthesized hot melt adhesives. The system includes: an online viscosity monitoring module that can be directly embedded in the hot melt adhesive synthesis reaction system for real-time acquisition of apparent viscosity data, reaction temperature data, and shear rate data of the hot melt adhesive during the synthesis process; a data processing module for receiving real-time data acquired by the online viscosity monitoring module, performing noise reduction, calibration, and fitting processing on the data, comparing it to a preset hot melt adhesive viscosity standard threshold, and generating a corresponding control command if the threshold is exceeded; an automatic control module for responding to the control commands generated by the data processing module; and a control module. This invention enables real-time, accurate online monitoring and, based on the monitoring data, completes automated and intelligent viscosity control, improving the quality consistency of hot melt adhesive products and enhancing industrial production efficiency.

The application discloses a continuous slicing method for PTA device oxidation residues for resource recycling, and belongs to the field of PTA devices. The application solves the problems of low production efficiency, poor slice quality, low extraction recovery rate and serious drum surface residue in the prior art. In the application, the liquid oxidation residues are on-line temperature-adjusted to an apparent viscosity of 800-1500 mPa·s, mixed with 0.5%-2.0% crystal seed additives, coated on the surface of a cooling drum with a thickness of 0.5-2.0 mm, and gradient solidified to form a residue thin layer with a micro-crack network inside, the slice is peeled off by using a 1000-5000 Hz high-frequency vibration scraper combined with an atomization isolation technology, and after screening to obtain 2-10 mm regular slices, solvent extraction is carried out to recover organic acid and cobalt-manganese catalyst. The application realizes full-continuous automatic production and has significant economic and environmental benefits.

The invention belongs to the field of inorganic-organic composite carrier materials, and provides an attapulgite-chitosan oligosaccharide composite carrier and a preparation method thereof. According to the invention, gamma-glycidyl ether oxypropyl trimethoxy silane is subjected to hydrolytic polycondensation to form a silane coupling layer on the surface of attapulgite, and chitosan oligosaccharide is covalently grafted through an epoxy group ring-opening reaction to construct a design of a double-layer covalent connection shell layer; according to the preparation method, accurate regulation and control of the shell thickness of 2-30nm under the condition that the mass ratio of chitosan oligosaccharide is 0.05-0.40 are realized, the particle size D50 is controllable in a range of 0.20-2.00 m, the apparent viscosity of 20wt% slurry is 50-500mPa. S, the PDI of powder after spray drying is reduced to 0.05-0.35, the water content is controlled to be 0-8wt%, and the particle size D50 is controllable in a range of 0.20-2.00 m. The coupling contradiction that an existing attapulgite carrier is difficult to consider high-proportion stable introduction of chitosan oligosaccharide, low-viscosity spray processing, particle size PDI degradation, moisture absorption and caking and the like is solved, and the attapulgite carrier has wide application value in the fields of pesticides, food additives, bioactive substance controlled-release carriers and the like.

The invention discloses a shale oil-based rock debris recycling profile control agent and a preparation method and application thereof, and relates to the technical field of oilfield chemicals, oilfield development and solid waste recycling. The profile control agent is prepared from the following components in percentage by weight: 5 to 10 percent of sodium salt, 15 to 20 percent of alkyl ammonium chloride, 15 to 25 percent of nonionic surfactant, 15 to 20 percent of viscoelastic surfactant, 20 to 30 percent of water and 10 to 15 percent of ethanol. The shale oil-based rock debris can be disintegrated and dispersed into 1-100m graded particles, and after the graded particles are mixed with water according to a preset proportion, the apparent viscosity measured by a rotational viscometer is 20-100mPas under the conditions that the temperature is 25 DEG C and the shear rate is 100. The preparation method adopts a step-by-step dissolution and specific sequential compounding process. In site construction, high-permeability reservoirs are mixed with water according to the ratio of 1: 0.6, low-permeability reservoirs are mixed according to the ratio of 1: 1.8, stratum ducts can be effectively blocked, and resource utilization of shale oil base rock debris is achieved.

The application discloses a soil dispersing agent for shield construction and a preparation method thereof. The soil dispersing agent is composed of a compound A and sulfonated succinic acid di-zinc ester sodium. The structural formula of the compound A is shown in the description. The soil dispersing agent is prepared by compounding two components. One is a non-polar hydrophilic group with negative charge, and the other is an oleophilic carbon hydrogen chain. The soil dispersing agent can promote wetting modification, reduce interfacial tension and enhance electrostatic force, improve the space steric hindrance effect, reduce apparent viscosity and improve dispersing effect.

The application provides organic soil and a preparation method and application thereof. The preparation method of the organic soil comprises the following steps: modifying bentonite by surface activation with a strong oxidizing solution to obtain a first reaction intermediate; performing a first contact reaction of the first reaction intermediate and a silane coupling agent containing long-chain alkyl in an alkaline water-alcohol mixed solution to obtain a second reaction intermediate; wherein the long-chain alkyl contained in the silane coupling agent containing long-chain alkyl is C3+ alkyl; and performing a second contact reaction of the second reaction intermediate and a quaternary ammonium salt surfactant to obtain the organic soil. The organic soil has excellent stability in a super-high-temperature environment of a deep well or an ultra-deep well, can effectively improve the structural force, apparent viscosity, dynamic shear force and low shear rate viscosity of a water-in-oil emulsified drilling fluid system, and can improve the rheological stability and sedimentation stability of the water-in-oil emulsified drilling fluid system under a super-high-temperature condition.