43 results about "SULFONATED PHENOL" patented technology

The invention relates to a high-temperature-resistant compound oil-displacing agent for thermal recovery of thick oil. The oil-displacing agent is a water solution and comprises the following components in parts by weight: 0.001-20 parts of sodium salt and / or calcium salt of sulfonated phenol formaldehyde resin, 0.001-20 parts of non-ionic surfactant and / or non-ionic-anion surfactant for displacing oil, wherein the number-average molecular weight of the sulfonated phenol formaldehyde resin is 2000-200000; the mass percentage of sulfur in the sulfonated phenol formaldehyde resin is 5-20 percent. The oil-displacing agent has the advantages of no alkali, strong high-temperature resistance, good interfacial property, high viscosity-reducing rate and low cost.

The present invention provides an ultra-high temperature salt-resistant drilling fluid for ultra-deep well and ultra-high temperature stratum drilling, and a preparation method thereof, wherein the ultra-high temperature salt-resistant drilling fluid comprises, by weight, 100 parts of water, 1-5 parts of clay, 0.3-6 parts of a filtrate loss reducer PFL-L, 0.3-6 parts of a filtrate loss reducer PFL-M, 0.3-6 parts of a filtrate loss reducer PFL-H, 2-8 parts of a sulfonated phenol formaldehyde resin, 2-8 parts of sulfonated lignite, 0.5-4 parts of a solid-phase chemical cleaning agent, 1-6 parts of a high temperature anti-collapse blocking agent, 1-6 parts of a lubricant, 0-35 parts of salt, 0.3-2 parts of a surfactant, 1.0-4 parts of a pH value adjusting agent, and 0-200 parts of a weighting agent. According to the present invention, the ultra-high temperature salt-resistant drilling fluid is not thickened at a high temperature of more than or equal to 240 DEG C, has easily-controlled rheology and low high-temperature and high-pressure filtrate loss, can be used for bottom hole drilling construction in the high temperature (more than or equal to 240 DEG C) and high salt (saturated salt) environments, and has the good application effect.

The invention discloses a deepwater drilling fluid. Every 1L of base slurry is composed of 1g of xanthan gum XC, 10-20g of sodium carboxymethyl cellulose, 20-30g of sulfonated phenol formaldehyde resin SMP-2, 30-50g of sodium silicate, 10g of polyvinylpyrrolidone PVP-K90, 15g of high modified asphalt KAHM, 50-100g of sodium chloride, 0.5g of sodium dodecyl benzene sulfonate, 0.5-1g of graphite and 0.2-0.5g of polyformaldehyde. The drilling fluid has the advantages of stable properties under cold conditions, favorable rheological behavior, high debris carrying capacity, excellent mud shale hydration expansion inhibition capacity, excellent hydrate generation inhibition capacity, low economic cost and small environmental pollution, and is especially suitable for deepwater drilling.

The invention discloses a method for preparing a high-temperature-resistant modified sulfonated phenolic resin for drilling fluid, which comprises the following steps: 1) adding phenolic reactants, aldehyde reactants and acid catalysts into a reaction kettle, mixing and stirring, React at 50-110°C for 10-400min; 2) Add alkali catalyst and aldehyde reactant to the reactor, keep the temperature between 50-110°C and add sulfonating agent in batches, react for 10-600min; 3) End of reaction Afterwards, the temperature is lowered and the material is discharged, and the product is obtained by spray drying. The temperature resistance of the modified sulfonated phenolic resin product prepared by the invention can reach 200°C. Under the aging condition of 200°C, the high-temperature and high-pressure filtration of the drilling fluid can be effectively reduced compared with the base slurry, and the salt resistance can reach 15% NaCl salt concentration. .

The invention discloses a high temperature-resisting fluid loss agent for drilling fluid. The high temperature-resisting fluid loss agent is characterized by being prepared from the following components and raw materials in percentage by mass: 10 to 15 percent of abietic acid, 8 to 12 percent of glycerol, 30 to 40 percent of sulfonated bitumen, 10 to 12 percent of cationic starch, 10 to 20 percent of temporary plugging agent, 12 to 14 percent of high temperature stabilizer and 0.5 to 1.0 percent of deoxidant, wherein the cationic starch is prepared from starch tert-amino alkyl ether and quaternary ammonium starch ether; the high temperature stabilizer is prepared from sulfonated phenol-formaldehyde resin and sulfonated lignite resin; the temporary plugging agent is prepared from tert-butyl phenolic curing resin, octyl phenolic curing resin and calcium carbonate. The high-temperature resistance is up to 250 DEG C, no blistering exists, the viscosity effect is low, the compatibility is good, a product contains rigid particles and softening film-forming particles in different size grading, the product directly participate in mud cake forming, a high-strength adsorption film is formed on the surface of the mud cake, the permeability rate of the mud cake is reduced, the quality of the mud cake is improved, and the function of reducing high-temperature high-pressure filter loss is achieved.