37results about How to "Control rheology" patented technology

The invention discloses a fluid loss additive for drilling fluid and a preparation method thereof, belonging to the technical field of chemical drilling fluid treating agents for oilfields. The method comprises the following steps of: carrying out one-step reaction on phenol, formaldehyde, humate, pyrosulfite and anhydrous sulfite so as to obtain a sulfonated phenolic humic acid resin; in the presence of an initiator, carrying out graft copolymerization on the sulfonated phenolic humic acid resin and a mixture of sodium hydroxide, 2-acrylamide-2-methyl-propyl sulfonate, acrylamide and dodecylacrylamide; and carrying out drying and crushing on the obtained product so as to obtain sulfonated phenolic humic acid resin-alkenyl monomer graft copolymer. The fluid loss additive disclosed by the invention has the functions of controlling the rheological property of drilling fluid and reducing the high-temperature and high-pressure filter loss of drilling fluid, not only enhances the thermal stability of side chains of a chain polymer, but also improves the salt tolerance of a sulfonated phenolic resin, and guarantees that products have good properties under high temperature and high salt conditions.

The invention relates to the technical field of lubricating grease, in particular to organic silicon lubricating grease and a preparation method thereof. The organic silicon lubricating grease comprises the following components in percentage by mass: 10 to 80 percent of base oil, 1 to 30 percent of modifier and 5 to 25 percent of thickening agent. The organic silicon lubricating grease has the advantages of wide application range, excellent dielectric property, insulating property, sealing property, thermal stability, shockproof property and lubricating property, and obvious improvement on lubricating property and thermal stability particularly.

The invention belongs to the field of molding of three-dimensional structures and specifically relates to a preparation method of a bionic porous ceramic with a complex three-dimensional structure. The preparation method comprises the steps: dissolving a ceramic precursor into a solvent, and carrying out a partial crosslinking reaction to obtain direct writing slurry; degasifying the direct writing slurry, and then, carrying out direct writing molding in an environment of an oriented cold field; and then, carrying out processes such as freeze-drying and crosslinking-cracking to obtain the bionic porous ceramic with the three-dimensional structure. By using the preparation method, the efficient combination of a direct writing molding technology and a freeze-pouring technology is firstly realized; and the limit of a traditional preparation technology on the aspect of achieving a multi-scale hole structure and the complex three-dimensional structure is overcome.

The invention provides an inorganic-organic polymer processing agent for drilling fluid polymerized from sulfonic acid monomer, carboxylic acid monomer, nonionic monomer and inorganic material in the presence of initiator, and the inorganic material includes bentonite. The inorganic-organic polymer processing agent for drilling fluid has good effect on filtration reduction effect in fresh water drilling fluid, brine drilling fluid, saturated brine drilling fluid and compound brine drilling fluid. The inorganic-organic polymer processing agent for drilling fluid has strong anti-sloughing capability and high permeability recovery, can control hydration and dispersion of the shale effectively, can control mud making of the clay effectively, and has good effect on hydrocarbon reservoir protection. Moreover, the preparation method is simple, the sources of raw materials are wide, and the promotion prospect is wide. The invention also provides a preparation method of inorganic-organic polymer processing agent for drilling fluid.

The invention relates to a treating agent for a zwitter-ion inorganic-organic monomer polymer drilling fluid and a preparation method of the treating agent, and belongs to the technical field of synthesis and preparation of a water-soluble polymer material. The preparation method comprises the following steps: adopting carboxylic acid monomers A, sulfonic acid monomers B, nonionic monomers C, cationic monomers D and inorganic material monomers E as raw materials; feeding the raw materials, wherein the ratio of the amounts of substances of the carboxylic acid monomers A to the sulfonic acid monomers B to the nonionic monomers C to the cationic monomers D is (5-40):(25-10):(65-35):(5-15), and the dosage of inorganic material monomers E is 5%-25% of the total mass of the carboxylic acid monomers A, the sulfonic acid monomers B, the nonionic monomers C, the cationic monomers D and the inorganic material monomers E; adopting water as a solvent, and initiating polymerization through an oxidation-reduction initiation system to obtain the treating agent. The treating agent has higher anti-collapse ability, can effectively control hydration and dispersion of clay shale and mud making of clay, has a better hydrocarbon reservoir protection effect, and is high in permeability recovering value, simple in production technology, extensive in raw material sources and wide in popularization prospects.

The invention relates to application of cellulose nanofiber as a flow pattern regulator for drilling fluids. According to the technical scheme, the cellulose nanofiber applied to the flow pattern regulator for drilling fluids has an addition of 0.1-3.0% in a drilling fluid, by volume. The application has the advantages that cellulose chains are mutually tangled to from a three-dimensional-meshed spatial grid structure which arrives at 'viscosity enhancing and shear improvement'; the spatial grid structure is very easy to damage under the action of external force; after the external force is removed, the spatial grid structure restores; featuring 'rapid weak gelling', the spatial grid structure helps enhance shear dilution and thixotropy of a drilling fluid system, and therefore, rheological properties of the drilling fluid system are effectively controlled; the cellulase nanofiber provided herein as the flow pattern regulator for drilling fluids has good 'viscosity enhancing and shearimprovement' functions for a drilling fluid, and also features regenerability, zero toxicity, degradability, low cost and the like.

The invention discloses water-based UV printing ink used for gravure printing and belongs to the field of printing materials. The water-based UV printing ink used for gravure printing is prepared from the following raw materials in parts by weight: 30-60 parts of waterborne polyurethane resin, 3-5 parts of a photoinitiator, 10-30 parts of pigment, 5-20 parts of filler, 0.05-0.5 part of a defoaming agent, 0.2-3.0 part of a wetting dispersant and 5-30 parts of water. The invention also provides a production technology of the water-based UV printing ink used for gravure printing. The water-based UV printing ink is non-inflammable and unexplosive and does not belong to dangerous chemicals, so that the security in printing, transportation and storage is enhanced; meanwhile, the water-based UV printing ink is not added with a quick-drying auxiliary or ethyl alcohol, zero release is realized, and the printing effect of the water-based UV printing ink can be equivalent to that of alcohol soluble printing ink and solvent type printing ink. The water-based UV printing ink has good adhesion and strong water resistance after being printed, so that the water-based UV printing ink is especially applicable to packaging printing materials for food, drink and medicines.

A powdered polyurethane, preferably a powdered recycled polyurethane rigid foam is co-dried with a water insoluble film-forming polymer to obtain a redispersible polymer powder composite for use in hydraulic binders or cementitious compositions to improve performance of cementitious compositions or mortar, in applications such as cement based the adhesives (CBTA), or external thermal insulating composite systems (ETICS).

The present invention provides an inorganic-organic polymer treatment agent for a drilling fluid, wherein the treatment agent is polymerized and formed by a sulfonic acid monomer, a carboxylic acid monomer, a nonionic monomer and inorganic material under the action of an initiator; and the inorganic material contains an aluminum-magnesium silicate inorganic gel. The inorganic-organic polymer treatment agent provided by the present invention has a relative strong reduction fluid loss effect in a fresh water drilling fluid, a saline water drilling fluid, a saturated saline water drilling fluid and a composite saline water drilling fluid, and further has a relative strong collapse prevention capability to control hydration and dispersion of mud shale and clay mud-making effectively. The recover value of permeability is high. The treatment agent has a relatively good hydrocarbon reservoir protecting effect. The inorganic-organic polymer treatment agent is simple in production process, wide in raw material sources, and vast in popularizing prospect. The present invention further provides a preparation method for the inorganic-organic polymer treatment agent for the drilling fluid.

The invention discloses a controllable low-strength material based on shield slurry and regenerated sand powder as well as a preparation method and application of the controllable low-strength material. The controllable low-strength material based on the shield slurry and the regenerated sand powder comprises a cementing material, compound regenerated sand powder, the shield slurry, a water reducing agent, a coagulant and water, wherein the compound regenerated sand powder is formed by compounding regenerated sand powder with the particle size of 0.075-0.30 mm, regenerated sand powder with the particle size of 0.30-1.18 mm and regenerated sand powder with the particle size of 1.18-4.75 mm. The preparation method of the controllable low-strength material comprises the following steps: uniformly mixing the cementing material, the compound regenerated sand powder, the shield slurry, the water reducing agent, the coagulant and the water. The controllable low-strength material is high in fluidity, high in stability and controllable in strength, bleeding is avoided while high fluidity is guaranteed, and the controllable low-strength material is simple in preparation process and low in cost and has remarkable social benefits and economic benefits.

The invention belongs to the field of the finishing varnish coating technology and particularly discloses a coating technology of finishing varnish on an integrated plate. The coating technology comprises drying and solidifying; drying comprises dewatering for dry flash-over and later thermal treatment; dewatering for dry flash-over refers to rapid determing treatment before solidification; and later thermal treatment refers to heating treatment after solidification. The coating technology is suitable for the field of outer wall integrated plates and is excellent in coating effect, high in coating adhesion and small in color difference.

The invention discloses a heat insulation paint with plurality of properties, and belongs to the field of building materials technology. The heat insulation paint with plurality of properties comprises, by weight, 25 to 36 parts of styrene-acrylic emulsion, 5 to 10 parts of bamboo charcoal fiber, 10 to 15 parts of silica, 3 to 6 parts of a heat-reflecting heat-insulating powder, 8 to 14 parts of aheat-resistance mixture, 2 to 7 parts of a wear-resistant reinforcing agent, 1 to 3 parts of a defoaming agent, 1 to 3 parts of a bactericide, 1 to 3 parts of a thickener, 4 to 8 parts of an ultraviolet absorber, 6 to 8 parts of titanium dioxide, and 9 to 12 parts of talcum powder. According to a preparation method, styrene-acrylic emulsion, the heat-reflecting heat-insulating powder, the heat-resistance mixture, and the wear-resistant reinforcing agent are added, so that the heat insulation paint is provided with excellent water resistance, oil resistance, heat resistance and aging resistance; bamboo charcoal fiber is added, so that the heat insulation paint is capable of absorbing moisture, drying, deodorizing, and preventing bacteria; the thickener is added to prevent filler precipitation, and control the rheological property of construction process. The heat insulation paint possesses various properties; the suitable application range is very wide; the production steps simple; andit is convenient for popularization.

The invention provides a polyurethane/silicone rubber hybrid material. The polyurethane/silicone rubber hybrid material is formed by compounding vinyl silicone oil, silicon dioxide and micro-crosslinked vinyl terminated polyurethane, the mass ratio of the vinyl silicone oil to the silicon dioxide to the micro-crosslinked vinyl terminated polyurethane is 100: (30-40): (15-25); the micro-crosslinked vinyl-terminated polyurethane is prepared by enabling vinyl-terminated polyurethane to react for 20 to 30 hours at the temperature of 65 to 75 DEG C under the vacuum pressure of 0.05 to 0.15 MPa. The silicone rubber is compounded with polyurethane with a specific structure and a specific crosslinking degree, so that the rheological property of the silicone rubber is successfully regulated and controlled, and the silicone rubber has the shear thinning rheological property while having excellent mechanical properties, meets the conditions of 3D printing, and has a very good application prospect as 3D printing ink.

The invention discloses a preparing method of an auxiliary additive beneficial for oil transport. The method includes the steps of adding dipropylene glycol methyl ether and N,N-diethylethanamine to tetrahydrofuran, slowly dropwise adding acryloyl chloride, raising the temperature to the room temperature 1 hour later, continuing the reaction for 12 hours, filtering out precipitates generated in reaction after the reaction ends, washing out a product in filtrate through petroleum ether, dissolving 4-10 parts of the product and 5-20 parts of polyethylene imine in methyl alcohol for stirring reaction for 20 hours, conducting rotary evaporating on the reaction product after the reaction stops to remove part of the solvent, settling out the concentrated product from the petroleum ether, conducting centrifuging and drying to obtain a solvent, and adding the solvent and mica powder to deionized water to be ball-milled to prepare suspension, namely the auxiliary additive.