CN109679633B - Solid foam drainage agent composition, preparation method and application thereof - Google Patents
Solid foam drainage agent composition, preparation method and application thereof Download PDFInfo
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Abstract
The invention relates to a solid foam scrubbing agent composition and a preparation method and application thereof. The method mainly solves the problems that the gas well production is reduced, even the spraying is stopped and the liquid foam discharging agent is difficult to fill due to excessive liquid loading in the development process of the existing high-temperature high-salinity deep well gas well. The invention comprises the following components in parts by mass: (1)1 part of an alkylamine polyether carboxylate; (2) 0.1-50 parts of a long-chain polyether nitrogen-containing compound; (3) 0.2-100 parts of solid filler; (4) 0-0.5 parts of adhesive; wherein the alkylamine polyether carboxylate is represented by formula (I); the nitrogen-containing long-chain polyether compound is shown as a formula (II); the R is1Is C8～C20Any one of the alkyl groups of (a); the R is1Is C10～C26The technical scheme of the fat base well solves the problem and can be used in the high-temperature and high-salinity deep well drainage gas production industry.
Description
Technical Field
The invention relates to a solid foam drainage agent composition, a preparation method and application thereof, in particular to a high-temperature high-salinity deep well solid foam drainage agent composition, a preparation method and application thereof.
Background
With the enhancement of the exploitation strength of the gas field, the water output of the gas field becomes a key problem restricting the normal production of the gas well. Foam drainage gas production is a drainage gas production technology which is rapidly developed at home and abroad in recent years, and has the advantages of simple equipment, convenience in construction, low cost, wide applicable well depth range, no influence on normal production of gas wells and the like. Foam drainage is to inject foam drainage agent into a well through an oil pipe or an oil casing ring, and foam with certain stability is generated under the stirring of airflow. The liquid phase slipped and deposited in the pipe is changed into foam, the relative density of fluid at the lower part in the pipe is changed, and the continuously produced gas phase displacement foam flows out of the shaft, so that the accumulated liquid in the shaft is discharged, and the purposes of water drainage and gas production are achieved.
The preparation of the foam scrubbing agent is started from the sixties of the last century abroad, and surfactants such as sulfonate, benzene sulfonate, alkylphenol polyoxyethylene and the like are mostly selected. At present, most of foam discharging agents for water drainage and gas production adopt a multi-component compound system, and in order to enhance the stability of single foam, auxiliaries such as alkali, alcohol, polymers, alkanolamide and the like are usually added into a formula to form reinforced foam. US7122509 reports a high temperature foam scrubbing agent formulation, which improves the temperature resistance of the system by using the research idea of neutralization of anionic surfactant and amine. US20120279715 reports a foam fluid for increasing oil yield by recovering gas in a gas well, which is an amido group-containing quaternary ammonium salt surfactant having foam discharging and sterilizing functions, and a hydrophobic chain is a hydrophobic segment in substituted naphthalene ring, benzene ring or natural oil ester, so that the foam fluid has strong chlorine resistance and condensate oil resistance, and also has good corrosion inhibition performance. However, the molecular structure contains amide groups which are sensitive to high temperature, so that the gas well adaptability of the gas well above 100 ℃ is poor. China is a technology for researching a foam drainage gas production process from the last 80 years, and a patent CN102212348A discloses a salt-resistant and methanol-resistant foam drainage agent, which comprises the following components in percentage by weight: 20-40% of cocamidopropyl betaine, 45-65% of amine oxide, 5-20% of alpha-olefin sulfonate, 5-15% of triethanolamine, 0.2-2% of fluorocarbon surfactant and 0-5% of methanol, wherein the mineralization resistance can reach 18 ten thousand, but the fluorocarbon surfactant is contained in the agent, so that not only is the cost greatly improved, but also the environmental impact is large.
The foam water discharging agent is mainly an aqueous agent, has the limitation of a plurality of factors such as transportation, storage and the like, and is troublesome to fill on site. CN 105062453A discloses a solid foam drainage agent for gas fields and a preparation method thereof, wherein raw materials comprise sodium dodecyl sulfate, alkylphenol polyoxyethylene, polyacrylamide, trisodium citrate and thiourea, and the solid foam drainage agent has good foam drainage performance. However, sodium dodecyl sulfate contains a sulfate bond, and the temperature resistance is insufficient.
Disclosure of Invention
The invention aims to solve the technical problems that the gas well production is reduced, even the gas well stops spraying and liquid filling is difficult due to excessive liquid loading in the existing high-temperature high-salt deep well gas well in the development process, and provides a solid foam discharging agent composition, in particular to a solid foam discharging agent composition for high-temperature high-salt resistant solid drainage gas production.
The second technical problem to be solved by the present invention is to provide a method for preparing a solid foam discharging agent composition corresponding to the first technical problem.
The invention also provides an application method of the solid foam discharging agent composition for high-temperature-resistant high-salinity drainage gas production, which corresponds to the solution of one of the technical problems.
In order to solve one of the above technical problems, the technical scheme adopted by the invention is as follows: the solid high-temperature-resistant high-salinity foam scrubbing agent composition for drainage and gas recovery comprises the following components in parts by mass:
(1)1 part of an alkylamine polyether carboxylate;
(2) 0.1-50 parts of a long-chain polyether nitrogen-containing compound;
(3) 0.2-100 parts of solid filler;
(4)0 to 0.5 parts of adhesive.
In the above technical solution, the general molecular formula of the alkylamine polyether carboxylate is preferably:
wherein R is1Is C8～C20Any one of the alkyl groups of (a); m, n, p and q are any number of 0-20 independently, and m + n is more than or equal to 1. Further, m + p is preferably any number of 1 to 5, n + q is preferably any number of 5 to 15, and X is at least one of an alkali metal ion and an ammonium ion.
In the above technical solution, the molecular general formula of the long-chain polyether nitrogen-containing compound is preferably:
in the formula (II), R1Is C10～C26Fatty radical or C of10～C26An aromatic group of (a); y is 0-20, and z is 0-60; r4、R5Is independently selected from C1～C5Alkyl of (C)1～C5Any one of the substituted alkyl groups of (a); r6、R7Is independently selected from C1～C5Alkylene of (C)1～C5Any one of the substituted alkylene groups of (a); y is selected from anionic groups which render the molecule of formula (II) electrically neutral; further, R1Preferably C10～C20Alkyl or C10～C20Of an alkylbenzene of, R7Preferably C2H4Or C3H6Z is preferably greater than 0.
In the above-mentioned embodiments, Y may be any anionic group which renders the general molecular formula (II) electrically neutral, and for example, Y is preferably, but not limited to, -COO-、-SO3 -、-HPO4 -Is more preferably-COO-、-SO3 -At least one of (1).
In the above technical solution, the solid filler is preferably at least one of inorganic oxysalt, metal halide, organic carboxylic acid and salt thereof, urea, and biuret; further preferably: the solid filler is preferably at least one of carbonate, bicarbonate, sulfate, phosphate, borate, metal halide, formate, acetate, tartaric acid and salt, citric acid and salt, phthalic acid and salt, gallic acid and salt, urea, biuret, and the like; the adhesive is at least one of dextrin, epoxy resin, polyacrylamide, starch, cellulose, polyethylene glycol and the like.
In the above technical solution, the solid filler is preferably at least one of sodium carbonate, sodium bicarbonate, sodium borate, sodium chloride, sodium acetate, tartaric acid, sodium tartrate, citric acid, sodium citrate, potassium phthalate, urea, and biuret.
In the above technical solution, the binder is preferably at least one of polyacrylamide, starch, and polyethylene glycol.
The foam scrubbing agent composition of the present invention has no special requirement on water during preparation, and may be deionized water or water containing inorganic mineral matter, and the water containing inorganic mineral matter may be tap water, oil field stratum water or oil field injection water.
To solve the second technical problem, the invention adopts the following technical scheme: a method for preparing a solid foam discharging agent composition according to any one of the above technical solutions to solve the technical problems, comprising the steps of:
when the adhesive is not equal to 0 part, the preparation method of the foam discharging agent composition comprises the following steps:
(1) uniformly mixing the alkylamine polyether carboxylate, the long-chain polyether nitrogen-containing compound and the solid filler according to the required mass portion to obtain a mixture;
(2) adding water to the adhesive until the adhesive is completely dissolved to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and pressing and forming to obtain the solid foam discharging agent composition; when the binder is equal to 0 part, the preparation method of the foam drainage agent composition comprises the following steps:
(1) uniformly mixing the alkylamine polyether carboxylate, the long-chain polyether nitrogen-containing compound and the solid filler according to the required mass portion to obtain a mixture;
(2) and then the mixture is pressed and molded to prepare the solid foam discharging agent composition.
In order to solve the third technical problem, the technical scheme adopted by the invention is as follows: the application of the solid foam scrubbing agent composition in any one of the technical schemes for solving the technical problems in drainage and gas production is provided.
In the technical scheme, the application has no special requirement, and a person skilled in the art can use the foam scrubbing agent composition according to the actual application environment, for example, but not limited to, the gas well temperature in the application is as high as 180 ℃, and the formation water mineralization of a suitable gas well is 0-250000 mg/L.
The foam scrubbing agent composition has good compatibility, and can also contain other treating agents commonly used in the field, such as surfactant, polymer, alkali and other oil extraction aids.
The thermal decomposition temperature of the alkylamine polyether carboxylate and the long-chain polyether nitrogen-containing compound in the foam scrubbing agent composition is 200 ℃, and the foam scrubbing agent composition is not hydrolyzed in aqueous solution; and secondly, the composition simultaneously has functional groups with both negative and positive amphiprotics and nonionic fragments, and the multiple hydrophilic groups increase the salt resistance on one hand, increase the amount of bound water and bound water carried by the foaming agent on the other hand, increase the liquid carrying amount of the foam and slow the liquid separation, so that the composition can be applied to the high-temperature high-salt deep well drainage and gas production process at the temperature of 180 ℃.
By adopting the technical scheme of the invention, the foam performance test of the foam scrubbing agent is carried out according to SY/T6465-2000 foamer evaluation method for foam drainage and gas production, the foam height is more than 140mm, the liquid carrying amount is more than 140mL, the high-temperature aging is carried out for 24h at 180 ℃, the foam height and the drainage performance change rate are less than 5% in 0-250,000 mg/L salinity saline water, and the foam scrubbing agent has good temperature resistance, salt tolerance, foaming performance and liquid carrying capacity, and achieves good technical effects.
The invention is further illustrated by the following examples.
Drawings
FIG. 1 shows a liquid carrying amount measuring apparatus (the height of a jacketed vessel is 1 m).
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
[ example 1 ]
(1) Under normal temperature and pressure, evenly mixing 10 g of alkylamine polyether carboxylate, 20 g of long-chain polyether nitrogen-containing compound and 30 g of sodium sulfate to obtain a mixture;
(2)0.1 g of polyacrylamide is added with 1 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and pressing and forming to obtain the solid foam drainage rod FS-1, wherein the component structure of the solid foam drainage rod FS-1 is detailed in Table 1.
[ example 2 ]
(1) Under normal temperature and pressure, 5 g of alkylamine polyether carboxylate, 50 g of long-chain polyether nitrogen-containing compound, 30 g of sodium sulfate, 10 g of sodium carbonate, 30 g of sodium bicarbonate and 30 g of urea are uniformly mixed to obtain a mixture;
(2) 0.5 g of polyethylene glycol is added with 2 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-2, wherein the component structure of the solid foam drainage rod FS-2 is detailed in table 1.
[ example 3 ]
(1) Under normal temperature and pressure, evenly mixing 50 g of alkylamine polyether carboxylate, 10 g of long-chain polyether nitrogen-containing compound, 10 g of urea and 1 g of citric acid to obtain a mixture;
(2) adding 0.1 g of starch and 2 g of water into the mixture, and stirring the mixture until the starch is completely dissolved to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-3, wherein the component structure of the solid foam drainage rod FS-3 is detailed in table 1.
[ example 4 ]
(1) Under normal temperature and pressure, evenly mixing 20 g of alkylamine polyether carboxylate, 20 g of long-chain polyether nitrogen-containing compound, 20 g of urea, 5 g of sodium chloride and 1 g of sodium citrate to obtain a mixture;
(2) 0.01 g of polyacrylamide is added with 0.5 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-4, wherein the component structure of the solid foam drainage rod FS-4 is detailed in Table 1.
[ example 5 ]
(1) Under normal temperature and pressure, evenly mixing 20 g of alkylamine polyether carboxylate, 10 g of long-chain polyether nitrogen-containing compound, 7 g of sodium bicarbonate, 1 g of sodium borate, 2 g of sodium tartrate and 1 g of biuret to obtain a mixture;
(2)0.1 g of polyethylene glycol is added with 1.0 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-5, wherein the component structure of the solid foam drainage rod FS-5 is detailed in table 1.
[ example 6 ]
(1) Under normal temperature and pressure, evenly mixing 10 g of alkylamine polyether carboxylate, 30 g of long-chain polyether nitrogen-containing compound, 30 g of urea and 1 g of sodium bicarbonate to obtain a mixture;
(2) adding 0.1 g of cellulose and 1.0 g of water into the mixture, and stirring the mixture until the cellulose is completely dissolved to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-6, wherein the component structure of the solid foam drainage rod FS-6 is detailed in Table 1.
[ example 7 ]
(1) Under normal temperature and pressure, 1 g of alkylamine polyether carboxylate, 50 g of long-chain polyether nitrogen-containing compound, 70 g of sodium sulfate and 30 g of urea are uniformly mixed to obtain a mixture;
(2) 0.2 g of polyethylene glycol is added with 1.5 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-7, wherein the component structure of the solid foam drainage rod FS-7 is detailed in Table 1.
[ example 8 ]
(1) Under normal temperature and pressure, evenly mixing 10 g of alkylamine polyether carboxylate, 20 g of long-chain polyether nitrogen-containing compound and 30 g of sodium sulfate to obtain a mixture;
(2)0.1 g of polyacrylamide is added with 1 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-8, wherein the component structure of the solid foam drainage rod FS-8 is detailed in Table 1.
[ example 9 ]
(1) Under normal temperature and pressure, evenly mixing 10 g of alkylamine polyether carboxylate, 20 g of long-chain polyether nitrogen-containing compound and 30 g of sodium sulfate to obtain a mixture;
(2)0.1 g of polyacrylamide is added with 1 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-9, wherein the component structure of the solid foam drainage rod FS-9 is detailed in table 1.
[ example 10 ]
(1) Under normal temperature and pressure, evenly mixing 10 g of alkylamine polyether carboxylate, 20 g of long-chain polyether nitrogen-containing compound and 30 g of sodium sulfate to obtain a mixture;
(2)0.1 g of polyacrylamide is added with 1 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) and (3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the solid foam drainage rod FS-10, wherein the component structure of the solid foam drainage rod FS-10 is detailed in Table 1.
[ example 11 ]
(1) Under normal temperature and pressure, evenly mixing 10 g of alkylamine polyether carboxylate, 20 g of long-chain polyether nitrogen-containing compound and 30 g of sodium sulfate to obtain a mixture;
(2) the above samples were press molded to produce solid foam drainage bars FS-11, the composition of which is detailed in Table 1.
[ example 12 ]
The solid foam drainage agents of examples 1 to 11 were dissolved in simulated aqueous solutions of 100,000, 200,000, and 250,000mg/L mineralization degrees, respectively, at room temperature and pressure to prepare 5000mg/L aqueous solutions.
[ example 13 ]
The initial height of foam of the foam scrubbing agent and the height of foam after 5 minutes were measured according to SY/T6465-.
4000mL/min of nitrogen was continuously introduced into the aqueous foam discharging agent solution, and the amount of foam carried over a period of 15 minutes was measured, and the results are shown in Table 2. The liquid carrying amount measuring apparatus used is shown in FIG. 1.
The test was carried out using a pressure-resistant and acid-resistant aging apparatus, and after aging at 180 ℃ for 24 hours, the properties such as the initial foaming height, the foaming height after 5 minutes, and the liquid carrying amount after 15 minutes were measured again, and the results are shown in Table 2.
[ COMPARATIVE EXAMPLE 1 ]
(1) Using 30 g of alkylamine polyether carboxylate in [ example 1 ], adding no long-chain polyether nitrogen-containing compound, and uniformly mixing with 30 g of sodium sulfate at normal temperature and normal pressure to obtain a mixture;
(2)0.1 g of polyacrylamide is added with 1 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S1;
(4) 1 g of FS-S1 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 3 (example 13).
[ COMPARATIVE EXAMPLE 2 ]
(1) Using 55 g of alkylamine polyether carboxylate in example 2, without adding long-chain polyether nitrogen-containing compound, uniformly mixing with 30 g of sodium sulfate, 10 g of sodium carbonate, 30 g of sodium bicarbonate and 30 g of urea at normal temperature and normal pressure to obtain a mixture;
(2) 0.5 g of polyethylene glycol is added with 2 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S2;
(4) 1 g of FS-S2 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 3 (example 13).
[ COMPARATIVE EXAMPLE 3 ]
(1) Using 60 g of alkylamine polyether carboxylate in [ example 3 ], adding no long-chain polyether nitrogen-containing compound, and uniformly mixing with 10 g of urea and 1 g of citric acid at normal temperature and normal pressure to obtain a mixture;
(2) adding 0.1 g of starch and 2 g of water into the mixture, and stirring the mixture until the starch is completely dissolved to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S3;
(4) 1 g of FS-S3 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 3 (example 13).
[ COMPARATIVE EXAMPLE 4 ]
(1) Using 40 g of alkylamine polyether carboxylate in [ example 4 ], adding no long-chain polyether nitrogen-containing compound, and uniformly mixing with 20 g of urea, 5 g of sodium chloride and 1 g of sodium citrate at normal temperature and normal pressure to obtain a mixture;
(2) 0.01 g of polyacrylamide is added with 0.5 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S4;
(4) 1 g of FS-S4 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 3 (example 13).
[ COMPARATIVE EXAMPLE 5 ]
(1) Using 30 g of alkylamine polyether carboxylate in [ example 5 ], adding no long-chain polyether nitrogen-containing compound, and uniformly mixing with 7 g of sodium bicarbonate, 1 g of sodium borate, 2 g of sodium tartrate and 1 g of biuret at normal temperature and normal pressure to obtain a mixture;
(2)0.1 g of polyethylene glycol is added with 1.0 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S5;
(4) 1 g of FS-S5 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 3 (example 13).
[ COMPARATIVE EXAMPLE 6 ]
(1) Using 40 g of alkylamine polyether carboxylate in [ example 6 ], adding no long-chain polyether nitrogen-containing compound, and uniformly mixing with 30 g of urea and 1 g of sodium bicarbonate at normal temperature and normal pressure to obtain a mixture;
(2) adding 0.1 g of cellulose and 1.0 g of water into the mixture, and stirring the mixture until the cellulose is completely dissolved to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S6;
(4) 1 g of FS-S6 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 3 (example 13).
[ COMPARATIVE EXAMPLE 7 ]
(1) Using 30 g of the long-chain polyether nitrogen-containing compound in example 1, adding no alkylamine polyether carboxylate, and uniformly mixing the long-chain polyether nitrogen-containing compound and 30 g of sodium sulfate at normal temperature and normal pressure to obtain a mixture;
(2)0.1 g of polyacrylamide is added with 1 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S7;
(4) 1 g of FS-S7 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 4 (example 13).
[ COMPARATIVE EXAMPLE 8 ]
(1) Using 55 g of the long-chain polyether nitrogen-containing compound in example 2, adding no alkylamine polyether carboxylate, and uniformly mixing with 30 g of sodium sulfate, 10 g of sodium carbonate, 30 g of sodium bicarbonate and 30 g of urea at normal temperature and normal pressure to obtain a mixture;
(2) 0.5 g of polyethylene glycol is added with 2 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S8;
(4) 1 g of FS-S8 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 4 (example 13).
[ COMPARATIVE EXAMPLE 9 ]
(1) 60 g of the long-chain polyether nitrogen-containing compound in the [ example 3 ] is used, and 10 g of urea and 1 g of citric acid are uniformly mixed at normal temperature and normal pressure without adding alkylamine polyether carboxylate to obtain a mixture;
(2) adding 0.1 g of starch and 2 g of water into the mixture, and stirring the mixture until the starch is completely dissolved to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S9;
(4) 1 g of FS-S9 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 4 (example 13).
[ COMPARATIVE EXAMPLE 10 ]
(1) Using 40 g of long-chain polyether containing nitrogen in [ example 4 ], adding no alkylamine polyether carboxylate compound, and uniformly mixing with 20 g of urea, 5 g of sodium chloride and 1 g of sodium citrate at normal temperature and normal pressure to obtain a mixture;
(2) 0.01 g of polyacrylamide is added with 0.5 g of water and stirred until the polyacrylamide is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S10;
(4) 1 g of FS-S10 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 4 (example 13).
[ COMPARATIVE EXAMPLE 11 ]
(1) Using 30 g of the long-chain polyether nitrogen-containing compound in example 5, adding no alkylamine polyether carboxylate, and uniformly mixing with 7 g of sodium bicarbonate, 1 g of sodium borate, 2 g of sodium tartrate and 1 g of biuret at normal temperature and normal pressure to obtain a mixture;
(2)0.1 g of polyethylene glycol is added with 1.0 g of water and stirred until the polyethylene glycol is completely dissolved, so as to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S11;
(4) 1 g of FS-S11 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 4 (example 13).
[ COMPARATIVE EXAMPLE 12 ]
(1) 40 g of the long-chain polyether nitrogen-containing compound in example 6 was used, and 30 g of urea and 1 g of sodium bicarbonate were uniformly mixed at normal temperature and pressure without adding alkylamine polyether carboxylate to obtain a mixture;
(2) adding 0.1 g of cellulose and 1.0 g of water into the mixture, and stirring the mixture until the cellulose is completely dissolved to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain a solid foam drainage rod FS-S12;
(4) 1 g of FS-S12 solid was weighed and dissolved in 100,000, 200,000, 250,000mg/L mineralized simulated aqueous solution to prepare 5000mg/L solution, and then the initial height of foaming and the height of foam after 5 minutes were measured and the foam drainage performance was tested as shown in Table 4 (example 13).
Composition component Structure in the examples of Table 1
Foam properties of the foam remover compositions in the examples of Table 2
TABLE 3 foam Properties of foam remover compositions of comparative examples 1-6
TABLE 4 foam Properties of foam remover compositions of comparative examples 7 to 12
Claims (8)
1. The foam scrubbing agent composition comprises the following components in parts by weight:
(1)1 part of an alkylamine polyether carboxylate;
(2) 0.1-50 parts of a long-chain polyether nitrogen-containing compound;
(3) 0.2-100 parts of solid filler;
(4) 0-0.5 parts of adhesive;
the molecular formula of the alkylamine polyether carboxylate is as follows:
wherein R is1Is C8～C20Any one of the alkyl groups of (a); x is at least one of alkali metal ions or ammonium ions; m + p is an arbitrary number of 1-5, and n + q is an arbitrary number of 5-15;
the molecular general formula of the long-chain polyether nitrogen-containing compound is as follows:
wherein, R is1Is C10～C26Fatty radical or C of10～C26An aromatic group of (a); y is 0-20, and z is 0-60; r4、R5Is independently selected from C1～C5Alkyl of (C)1～C5Any one of the substituted alkyl groups of (a); r6、R7Is independently selected from C1～C5Alkylene of (C)1～C5Any one of the substituted alkylene groups of (a); y is selected from anionic groups which render the molecule of formula (II) electrically neutral.
2. The foam scrubbing composition of claim 1, wherein R is1Is C10～C20Alkyl of (C)10～C20Alkyl phenyl of R7Is C2H4Or C3H6。
3. The foam scrubbing composition of claim 1, wherein z is greater than 0.
4. The foam scrubbing agent composition of claim 1, wherein said solid filler is at least one of inorganic oxyacid salts, metal halides, organic carboxylic acids and salts thereof, urea, and biuret.
5. The foam remover composition according to claim 4, wherein the solid filler is at least one of carbonate, bicarbonate, sulfate, phosphate, borate, metal halide, formate, acetate, tartaric acid and salts thereof, citric acid and salts thereof, phthalic acid and salts thereof, gallic acid and salts thereof, urea, and biuret.
6. The foam scrubbing composition of claim 1, wherein the binder is at least one of dextrin, epoxy resin, polyacrylamide, starch, cellulose, and polyethylene glycol.
7. The method for preparing the foam discharging agent composition as claimed in any one of claims 1 to 6, wherein when the binder is not equal to 0 part, the method for preparing the foam discharging agent composition comprises the following steps:
(1) uniformly mixing the alkylamine polyether carboxylate, the long-chain polyether nitrogen-containing compound and the solid filler according to the required mass portion to obtain a mixture;
(2) adding water to the adhesive until the adhesive is completely dissolved to obtain an adhesive solution;
(3) uniformly mixing the mixture obtained in the step (1) and the adhesive solution obtained in the step (2), and performing compression molding to obtain the foam scrubbing agent composition;
when the adhesive is equal to 0 part, the preparation method of the foam discharging agent composition comprises the following steps:
(1) uniformly mixing the alkylamine polyether carboxylate, the long-chain polyether nitrogen-containing compound and the solid filler according to the required mass portion to obtain a mixture;
(2) and then the mixture is pressed and formed to prepare the foam scrubbing agent composition.
8. Use of the foam discharging agent composition as defined in any one of claims 1 to 6 in water drainage and gas production.
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