66results about How to "Improve foam stabilization performance" patented technology

The invention relates to a clay foam stabilizing complex additive for foam flooding as well as a preparation method and an application of the clay foam stabilizing complex additive. The clay foam stabilizing complex additive comprises the following raw materials in parts by weight: 0.2-0.9 part of sodium dodecyl benzene sulfonate, 1-10 parts of clay particles and 100 parts of water, wherein the particle sizes of the clay particles range from 25mu m to 100mu m. The hydrophobic clay particles are added into the clay foam stabilizing complex additive for foam flooding, provided by the invention to ensure that the solid particles are attached on the surface of a liquid film and in a liquid film layer to form a rigid compact shell, so that the strength of the foam liquid film is enhanced, the liquid drainage of the liquid film is inhibited, the liquid film is prevented from thinning, and furthermore, the bubbling volume of the foam is increased, and the half-life period of the foam is prolonged.

The invention relates to ammonium stearate emulsion and a producing method thereof, belonging to the technical field of auxiliary chemicals. The ammonium stearate emulsion comprises the following components with the weight percentage: 15-35% of stearic acid, 6-14% of 20% ammonia water, 1-3% of lauryl sodium sulfate and the rest of water. The production technique is that a reaction vessel is sequentially added with the stearic acid, the lauryl sodium sulfate and the water according to the formulation amount, the temperature is regulated to be 10-25 DEG C; after being evenly stirred, the mixture in the reaction vessel is added with the ammonia water, and the mixing speed is adjusted; the prepared ammonium stearate liquid is absorbed into an emulsifying tank for emulsification, stands still for 1-2h, and then is filtered, so that the ammonium stearate emulsion is obtained. The invention is suitable for large scale continuous production, ensures the reaction to be very safe under normal temperature and pressure, and has the advantages of simple input equipment, saved cost, no pollution and emission in the whole production process, silvery white and lustrous finished products, excellent fluidness and stability, low product viscosity (being lower than or equal to 350cps), high purity, good dispersion effect and convenient use. The ammonium stearate emulsion can be fully dispersed in waterborne liquid, has about six-month shelf life and is hard to become thick after being placed for a long time.

The present invention provides a foam scrubbing agent used for water drainage and gas collection of a water-production gas well containing H2S gas. The foam scrubbing agent included the following raw materials: 10-30% of an anionic-nonionic surfactant, 20-40% of a zwitterionic surfactant, 5-15% of an anionic surfactant and balance of deionized water. The present invention also provides a preparation method of the foam scrubbing agent, and the preparation method is as follows: the anionic-nonionic surfactant and the zwitterionic surfactant are added into a stainless steel reaction kettle in one time, and the deionized water is added to obtain a liquid mixture, the liquid mixture is heated to 40-50 DE GC, and stirred, the anionic surfactant is slowly added into the liquid mixture, and stirred to obtain the foam scrubbing agent. The foam scrubbing agent can good foaming characteristic and foam stabilization characteristic in formation water dissolved with the H2S gas.

The invention relates to a preparation method of a protein type cement foaming agent and concrete containing the foaming agent. The method includes: hydrolyzing chrome-containing leather shavings to obtain a leather shaving hydrolysate solution, and then subjecting the leather shaving hydrolysate solution to blistering compounding and foam-stabilizing compounding to obtain the protein type foaming agent, thus solving the high cost problem of protein type foaming agents; and applying the protein type foaming agent into cement to prepare foam concrete, drying the chrome-containing residue obtained by hydrolysis, and then adding the dried residue into the foam concrete. The invention provides a novel treatment approach for chrome-containing residue, and obtains a new formula for making foam concrete. The method provided by the invention utilizes leather shavings to prepare the foaming agent and concrete with high utility value, and also solves the pollution problem of leather shavings.

The invention discloses thermal insulation anti-cracking foam concrete. The thermal insulation anti-cracking foam concrete comprises the following raw materials: cement, glass beads, limestone flour, a composite foaming agent, metakaolin, basalt fiber, lignin fiber, alpha-methyl-2,4-pentanediol, vinyl acetate-ethylene copolymer, a water reducer, an early strength agent, a pumping aid and water, wherein the composite foaming agent contains the following raw materials: N-lauroyl-L-sodium glutamate, sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, oleic acid, triethanolamine, lauryl diethanolamine, zeolite powder and water. The thermal insulation anti-cracking foam concrete has high strength, a good anti-cracking effect and excellent thermal insulation performance.

The invention discloses a light foamed soil for high speed railway station maintenance and change filling. The light foamed soil contains the following composition materials by weight: 240-280 parts of cement, 60-80 parts of an active mixed material, 120-140 parts of water, 2-6 parts of an expansive agent, 10-18 parts of a foam stabilizing agent, 6-12 parts of a foaming agent, 3-10 parts of a water repellent, and 4-8 parts of a micro-foam agent. The light foamed soil also includes ceramsite lightweight aggregate with an adding amount accounting for 10%-35% of the total volume. The obtained light foamed soil has the characteristics of compact filling, good foam stabilizing effect, high strength, difficult cracking and good flexibility, is lighter than general civil engineering materials, can avoid environment destruction caused by high fill and high cut and the like when applied to filling engineering construction, and under the circumstance of ensuring constant load, can greatly enhance the filling height, reduce the influence of filling on the foundation, and has very obvious load decreasing effect under the circumstance of insufficient ground bearing capacity.

The invention relates to a salt-resistant and acid-resistant drainage foaming agent composition for gas recovery, a preparation method and application thereof. It mainly solves the problem of excessive liquid accumulation in the development process of existing gas wells, which leads to the reduction of production or even the suspension of blowout of gas wells. Including the following components by mass fraction: (1) 1 part of imidazoline type amphoteric surfactant; (2) 0.2 to 20 parts of α-olefin sulfonate; (3) 0-10 parts of nanoparticles; wherein The imidazoline type amphoteric surfactant has molecular general formula shown in formula (I), described R 1 for C 8 ~C 30 fat base; R 2 for C 1 ~C 5 Any one of the alkylene or substituted alkylene; Y is the technical scheme of the anionic group that makes the molecules shown in formula (I) be electrically neutral, which solves this problem better, and can be applied to high salt content Drainage and gas recovery in sour gas fields.

The invention discloses a compound protein foaming agent, and belongs to the technical field of food manufacturing. Rice bran and brewer's grains serve as raw materials, crushing, reagent mixing, stirring and centrifuging, degreasing and other operations are conducted, mixed protein is made and acted on protein surface grafted glycosyl through enzymolysis and sugar liquor, the foam stability is improved, bacterial cellulose left in the mixed protein can form a hydrogen bond with the glycosyl, the contact area of gas and water is reduced, an interfacial film keeps good mechanical strength, andthe foam stability of the foaming agent is further improved. Accordingly, glycerin and absolute ethyl alcohol serve as a ball-milling medium to conduct ball milling on soybean protein, the action among tissue is improved, then, by cooperating with alkali liquor, the protein is degraded, the molecular weight is lowered, the number of active groups is further increased, and then the foam stability of the foaming agent can be effectively improved. The problem that an existing frequently-used foaming agent is poor in foamability and foam stability is solved.

The invention discloses a micro-foam agent for oil field oil gas well cementation. The micro-foam agent is prepared from a micro-foam agent half-finished product and silicate clay mineral in the weight ratio of 1:25-35; the micro-foam agent half-finished product is prepared from the following components in parts by weight: 7-11 parts of rosin powder, 4-7 parts of silicate saponifier, 0.7-1.3 parts of high-temperature-resistant surfactant combination, 1.0-3.0 parts of well cementation reinforcing agent and 8-12 parts of water, wherein the silicate clay mineral is sepiolite clay or lithium-based bentonite; the silicate saponifier is sodium silicate or potassium silicate; the well cementation reinforcing agent is triisopropanolamine or triethanolamine; and the high-temperature-resistant surfactant combination consists of OP-10 and SP-80 in the weight ratio of 1:1 or APG (Alkyl Polyglucoside) and SP-80 in the weight ratio of 1:1. The invention also provides a preparation method of the micro-foam agent. Thus, a novel ultra-low density micro-foam well cementation cement slurry system with fine foam, high stability, simple preparation process and superior overall performance is established.

The invention relates to ultralight foam concrete and a preparing method thereof. The ultralight foam concrete is prepared by adopting common Portland cement, quick-to-solid sulphate aluminium cement, sludge of concrete batching plant, polycarboxylate superplasticizer, re-dispersible latex powder, hydroxypropyl methyl cellulose ether, calcium stearate, sintered shale brick powder, polypropylene fiber, hydrogen peroxide, water and the like through stirring, mixing, foaming, pouring, molding, curing and the like. The ultralight foam concrete has the advantages of low cost, high use rate of waste, high foaming efficiency of hydrogen peroxide, and good physical and mechanical properties, and an effect of preparing the ultralight foam concrete by using building garbage and wastes is achieved. The ultralight foam concrete is used for roof thermal insulation, wall body cavity filling and building floor thermal insulation.

The invention relates to the field of oil exploitation, and discloses modified starch, a preparation method thereof, a microbubble drilling fluid and application. The preparation method comprises the following steps: (1) preparing starch and water into a gelatinized starch solution, preparing a first monomer, a second monomer, a third monomer and water into a monomer solution, and then mixing the gelatinized starch solution, the monomer solution and a hydrophilic emulsifier to prepare a water-phase solution; (2) mixing an oleophylic emulsifier with liquid paraffin, and emulsifying to obtain an oil phase solution; adding the aqueous phase solution into the oil phase solution to prepare a water-in-oil type inverse emulsion system; (3) in the presence of an initiator, carrying out graft copolymerization reaction on the water-in-oil type inverse emulsion system to obtain a reaction product system; and (4) carrying out demulsification, cleaning and subsequent treatment on the reaction product system to obtain the modified starch. The modified starch has excellent high-temperature foam stabilizing performance, can resist the temperature of 180 DEG C, and has better salt and calcium resistance.

The invention provides a composite foaming agent and a preparation method thereof, and relates-the technical field of foaming agents. The composite foaming agent comprises the following raw materials in parts by weight: 65-75 parts of triterpenoid saponin, 10-15 parts of lauryl sodium sulfate, 3-7 parts of a foam increasing component, 4-7 parts of a foam stabilizing component, 2-4 parts of a functional component and 8-11 parts of water. Triterpenoid saponin and lauryl sodium sulfate are used as foaming agent base materials, foam increasing components such as lauryl polyoxyethylene ether sodium sulfate, lauryl dimethyl amine oxide and decyl sodium sulfate and foam stabilizing components such as triethanolamine, sodium chloride and hydroxyethyl cellulose are added, and the foamability and foam stability of the foaming agent can be greatly improved; and meanwhile, tris(2, 3-dibromopropyl)isocyanurate is added into the foaming agent-serve as a flame-retardant functional component, and benzoic acid and isothiazolinone are added to serve as anti-corrosion functional components, so that the performance of the foaming agent is more perfect, and the foaming agent is worthy of being vigorously popularized.

The invention discloses a highly concentrated environment-friendly fluorine-free compressed air foam fire extinguishing agent. Its components and weight percentages are: foaming agent 10-25%, flow enhancer 5-18%, foam stabilizer 5-25%, antifreeze agent 8-15%, bactericide 0.3-1.2%, and the balance for water. The foam fire extinguishing agent of the present invention has the characteristics of high concentration, and the minimum mixing ratio can be as low as 0.5%. The freezing point can reach ‑35°C, and it can be used normally in a low temperature environment. The product is suitable for fresh water and sea water. The invention can quickly extinguish fires of non-water-soluble flammable liquids, has strong resurgence resistance, can also quickly extinguish solid material fires, and is applicable to a wide range of fire extinguishing objects. The product does not contain fluorosurfactants and ether components, each component can be rapidly biodegraded in the environment, and has no toxic effect on animals and plants in the environment, and has no pollution to the environment after use, and has no impact on human health.