280results about How to "Strong foaming ability" patented technology

The invention discloses an environmentally-friendly amine cationic collector and a using method thereof. The collector ZJ is ester group-containing quaternary ammonium salt cationic surfactant and has a plurality of alkyl groups, wherein an R alkyl group has 6 to 18 carbon atoms; an R1 alkyl group has 1 to 4 carbon atoms; the number of ester groups is 1 or two; and the number of the quaternary ammonium group is 1. The collector is obtained by esterification and quaternarization. As a hydrophobic chain has a carbonyl structure, the collector can hydrolyze easily into nonsurfactant fragments, and is a surfactant with high biodegradability, small toxicity and high performance. The collector is used in ore flotation for the first time and demonstrates high collecting capacity and selectivity.The collector forms fine and fragile foam that is low temperature resistant. The collector can be used under the condition that the pH value of ore pulp is 7 without corroding equipment. The preparation process of the collector is simple and easy in operation. And the collector is easy to biodegrade and is environmentally-friendly.

A subterranean fracturing fluid, which is relatively harmless to both the environment and subterranean formations includes an amphoteric surfactant, specifically a betaine surfactant and an organic electrolyte or an alcohol in an aqueous medium. Depending upon the proportions of the ingredients, the fluid can be foamed.

The invention discloses a foaming agent for foam concrete. The foaming agent is prepared by uniformly mixing and stirring the following raw materials at room temperature, by weight : 5-10 parts of sodium dodecyl benzene sulfonate, 2-4 parts of sodium alcohol ether sulphate, 1-2 parts of sodium lauroyl sarcosinate, 1-2 parts of cocamidopropyl betaine, 0.2-0.6 part of polyethylene glycol (120) methyl glucoside dioleate, 0.3-0.5 part of triethanolamine, 0.5-1 part of polyacrylamide, 1-2 parts of hydroxyethyl cellulose, and 60-70 parts of water. The invention has advantages of easily available raw materials, low cost and simple preparation process; and the produced foaming agent has advantages of good stability, no deterioration, easiness for long-term preservation, prolonged shelf-life, good foaming power, good peaceability with various foam concrete substrates, no defoaming and unrestricted range of usage.

The invention provides high-temperature resistant CO2 foam cleaning and associated fracturing fluid and a preparation method and application thereof. The high-temperature resistant CO2 foam cleaning and associated fracturing fluid comprises a fracturing fluid base solution, a cross-linking agent, a gel breaker and liquid CO2, wherein the cross-linking agent and the gel breaker account for 0.3%-0.8% and 0-0.05% of the fracturing fluid base solution in parts by weight separately; and the liquid CO2 accounts for 30%-70% of total volume of the CO2 foam cleaning and associated fracturing fluid. The high-temperature resistant CO2 foam cleaning and associated fracturing fluid provided by the invention has the characteristics of being few in additive types, simple in preparation, controllable in crosslinking, low in residue, low in damage, low in friction, high in foaming efficiency, high in flowback rate and resistant to high temperature.

The invention discloses an environmental-friendly type foam water-draining agent and a preparation method thereof. The environmental-friendly type foam water-draining agent adopts a biodegradable material; and the foam water drainage refers to discharging liquid accumulated at the bottom of a well out of the well by utilizing the water containing performance of foam and the own capability of the well bottom so as to realize the purpose of increasing the yield of the natural gas well. In a field experiment, the foam water-draining agent disclosed by the invention has the advantages that the foam water drainage gas producing process can be met by good foaming capability, foam stabilizing capability and liquid carrying capability, and the foam water-draining effect can be achieved. The environmental-friendly type foam water-draining agent is characterized by comprising the following components of: cocamidopropyl dimethylamine hydroxysultaine, dodecyl dimethyl betaine, alkyl glycoside, cocamidopropyl betaine, lauramidopropyl betaine, dodecyl dimethyl ammonium oxide, hexadecyl trimethyl ammonium chloride, fatty alcohol polyoxyethylene ether, urea and water.

The invention provides a high-temperature resistant, hypersalinity resistant and gas condensate resistant foam scrubbing agent and a preparation method thereof. The foam scrubbing agent is prepared from the following components in parts by weight: 30 to 50 percent of anionic surfactant, 10 to 2 percent of ampholytic surfactant, 1 to 2 percent of fluorocarbon surfactant, 0.5 to 1.5 percent of foam stabilizer, 0.2 to 0.5 percent of triethanolamine, 0.2 to 0.5 percent of glycol, 3 to 5 percent of sodium salt and the balance of water. The foam scrubbing agent has good water-carrying and foaming effects, can meet the process requirements of gas recovery by water drainage and has high-temperature resistance, hypersalinity resistance and gas condensate resistance.

The invention relates to the field of foam flooding and discloses a foamer and a foam gas flooding method. The foamer comprises a weak-cationic amphoteric surfactant, water and at least one of cationic surfactant, amphoteric surfactant and alcohol. The foam gas flooding method comprises the steps of injecting the weak-cationic amphoteric surfactant containing foamer and gas into an oil reservoir, and carrying out foam profile control and oil displacement. According to the foamer and the method, disclosed by the invention, the foamer has high foamability, stability and profile control and oil displacement capability, so that the corrosion action on injection equipment and an oilfield injection-production system caused by air foam in an air foam flooding profile control and oil displacement process can be obviously lowered; and the foamer not only can be applied to a foam profile control and oil displacement process of ordinary strata, but also can be applicable to the foam profile control and oil displacement process under the condition that stratum water is high in degree of mineralization and high in calcium and magnesium ion content.

The invention discloses a foam water-drainage agent and its aqueous solution, and belongs to the technical field of the oilfield chemical engineering. The foam water-drainage agent is composed of 50-80 parts by weight of a Sapindus mukurossi Gaertn extract, 20-40 parts of fatty alcohol polyoxyethylene ether AEO18, 1-5 parts by weight of polyacrylamide and 5-10 parts by weight of triethanolamine. The foam water-drainage agent has the characteristics of strong foaming capability after meeting water, good foam stability, and high liquid carrying capability and high mineralization resistance of foams, and is suitable for the use in natural gas wells containing gas condensate and having a high mineralization and a large water output; the foam water-drainage agent has a foam stability of 170mm, has a foam water content of not more than 2.0%, has a mineralization resistance of 250g/L, has a gas condensate resistance of 30%, has a temperature resistance of 90DEG C, is non-toxic, is easy to degrade, and does not pollute the environment; and the foam water-drainage agent has the advantages of compatibility with chemicals comprising methanol, a corrosion inhibitor, a scale inhibitor and the like, no chemical reaction with gas or liquid components, no increase to the toxicities of gases or combustion products, and no corrosion to equipment or pipelines.

The invention discloses a preparation method for peanut bioactive peptide. The method comprises the following steps: adding peanut protein powder to distilled water, carrying out stirring, followed by standing and microwave treatment to obtain peanut protein powder suspension liquid; adjusting a pH value of the peanut protein powder suspension liquid through a hydrochloric acid solution, then adding compound plant hydrolase Viscozyme L, followed by carrying out the microwave treatment to secondarily carry out enzymolysis to obtain a enzymatic hydrolysate, then killing the enzymes and carryingout cooling to a room temperature; adjusting a pH value of the enzymatic hydrolysate through a sodium hydroxide solution or the hydrochloric acid solution, then adding protease and carrying out the microwave treatment to secondarily carry out the enzymolysis, then killing the protease and carrying out cooling to the room temperature, followed by carrying out centrifugating and freeze drying to obtain the peanut bioactive peptide. The prepared peanut bioactive peptide product provided by the present invention has functional properties of high dissolubility, high emulsibility, strong foamability, good emulsion stability, good foam stability and the like. In addition, the method provided by the present invention is applicable for the industrial production.

The invention discloses waterproof crack-resistant foam concrete and a manufacture method thereof. The waterproof crack-resistant foam concrete is formed by mixing and stirring of raw materials including, by weight, 220-350 parts of cement, 90-180 parts of microspheres, 1-6 parts of elastic particles, 0.30-0.45 parts of palm filaments, 60-160 parts of water, 2-9 parts of waterproof admixtures and foam. The waterproof crack-resistant foam concrete and the manufacture method thereof have the advantages that the raw materials such as industrial by-products, tailings powder or waste rubber powder and the palm filaments are adopted, and the multi-scale toughening principle on compounding of the elastic particles and fibers is followed, so that strength and crack resistance of the foam concrete are improved, and waste resource utilization is benefited; the adopted waterproof admixtures are highly compatible with other materials, and accordingly, water resistance and durability of the foam concrete are improved effectively; by the prepared foam which is fine, uniform and high in stability, anti-permeability and thermal performance of the foam concrete are improved; the foam concrete is applicable to heat insulation of building walls and roofs and roadbed refilling materials for highways in regions with soft soil and high water level.

The invention discloses a foaming agent suitable for a high-temperature and high-salinity oil reservoir and a preparation method thereof. The foaming agent includes 50-70 wt% of alkyl sulfonate, 10-15 wt% of alkyl amine oxide, and the balance distilled water; the pH value of the foaming agent is 7-9. The method includes the steps: successively adding alkyl sulfonate, alkyl amine oxide and distilled water into a reaction kettle while stirring, and mixing uniformly to obtain the foaming agent, wherein the temperature of the reaction kettle is 30-70 DEG C. The foaming agent has the advantages of strong foaming ability, high salinity resistance, high calcium and magnesium ion resistance and good compatibility with formation water.

The invention discloses a salt-resistant and acid-resistant concentrated foaming agent as well as a preparation method and application thereof. The foaming agent consists of 20-45 percent of a zwitterionic surfactant, 1-10 percent of a cation surfactant and water. The preparation method comprises the following steps: adding the components of the weight percentages into a reaction kettle respectively in sequence; stirring the mixture at the normal temperature for 2-3 hours; and fully reacting the materials in the reaction kettle to obtain the salt-resistant and acid-resistant concentrated foaming agent. The salt-resistant and acid-resistant concentrated foaming agent has the advantages of high foaming ability, high foam stability, salt resistance, acid resistance, wide temperature range and the like at a low use concentration, is suitable for a foam fracturing process as well as the processes of oil production, gas production, drainage and the like of oil-gas coproduction wells and gas-water coproduction wells, and is applied to well repair and sand wash operation. The preparation method has the advantages of adoption of readily-available raw material, easiness and convenience in operation, low requirements on the environment and equipment, and easiness in realizing industrial production and large-scale application.

The invention relates to a preparation method for synthesizing esters from fatty acid and sodium hydroxyethyl sulfonate and particularly relates to a preparation method of sodium hydroxyethyl sulfonate fatty acid ester. According to the method, a finished product of sodium hydroxyethyl sulfonate fatty acid ester is prepared by adopting coconut oil acid, sodium hydroxyethyl sulfonate and zinc oxide as raw materials through performing preparation of the raw materials, esterification reaction, vacuum-pumping operation and other process steps. The preparation method provided by the invention has the advantages of simple process, rich sources of the raw materials, reproducibility, very low environmental pollution of a production process and no other wastes and byproducts, and is suitable for industrial mass production. The product is easy to be crushed into powder with the particle size of 200 meshes through a crushing machine and can be added into face washing powder, and experiments prove that the product has strong foamability and hard water resistance.

The invention discloses a foaming agent for a CO2 oil displacement system and a preparation method thereof. The foaming agent is prepared from the following ingredients in parts by weight: 0.05 to 0.4 part of dodecyl hydroxypropyl phosphate betaine, 0.05 to 0.5 part of surface active agents with star-shaped molecular structures and 95 to 100 parts of water, wherein the surface active agent is any one of R2N[R1N(R1NH2)2]2, R3[N(R1NH2)2]2 and N[CH2CH2N(R1NH2)2]3; the R1 is -CH2CH2CONHCH2CH2-; the R2 is CnH2n+1-, and the n is 12 to 18; the R3 is -CnH2n-, and the n is 4 to 8; the surface active agents are prepared by enabling primary amine, diamine or triamine to react with methyl acrylate and ethylenediamine. The foaming agent provided by the invention has high foaming capability, and the formed foam has high stability.

The invention discloses a phosphogypsum flame retardant foaming agent. The technical scheme is characterized in that the phosphogypsum flame retardant foaming agent is composed of phosphogypsum, high-viscosity attapulgite clay powder, active attapulgite clay, sodium bicarbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate which are dehydrated; and all the ingredients of the phosphogypsum flame retardant foaming agent are stirred, ground and packaged to obtain a finished product of the phosphogypsum flame retardant foaming agent. After water is added into the phosphogypsum flame retardant foaming agent and the mixture is stirred at a high speed, a great amount of gases are rapidly released, and thus, porous foam sludge is formed; the foam slurry is directly used for extinguishing a fire after being sprayed by using a high-pressure water gun; the foam slurry is stably covered on the surface layer of a combustible material to form a foam slurry film which can be used for rapidly isolating the contact of the combustible material and the air and preventing the combustible material from continuing combusting, and thus, the aims of flame retarding and fire extinguishing are achieved; and the phosphogypsum flame retardant foaming agent is suitable for producing flame retarding and fire extinguishing products, light boards, light walls and silencing and noise reducing products.

The invention discloses a preparation method of a composite protein foaming agent. The method comprises: preparing a mixed protein solution; performing microwave and supersonic wave cooperative treatment to the mixed protein solution at the pH value of 1.5-3.0 to obtain a micro-granulated composite protein solution; performing high-pressure microjet to the micro-granulated composite protein solution to obtain a homogeneous composite protein solution; and drying the homogeneous composite protein solution to obtain the protein foaming agent. Through a microwave and supersonic wave cooperative effect, heterogenous protein is induced to undergo aggregation and recombination, thereby forming specific composite protein aggregate particles. Further, the particle size of the composite protein aggregate particles is regulated with the assistance of high-pressure microjet. The adaptability to the environmental condition of the composite protein foaming agent is improved.