CN107556997A - Enhanced low interfacial tension foam system of nano-particle and preparation method thereof - Google Patents
Enhanced low interfacial tension foam system of nano-particle and preparation method thereof Download PDFInfo
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- CN107556997A CN107556997A CN201710764376.3A CN201710764376A CN107556997A CN 107556997 A CN107556997 A CN 107556997A CN 201710764376 A CN201710764376 A CN 201710764376A CN 107556997 A CN107556997 A CN 107556997A
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Abstract
The invention discloses enhanced low interfacial tension foam system of a kind of nano-particle and preparation method thereof, the foam system percentage is made up of following component：Cationic surfactant 0.2 0.8%, stabilizer 0.01 0.1%, polymerization inhibitor 0.5% 1.0%, auxiliary agent 0.3 1.0%；Mineralising water surplus；Described cationic surfactant is selected from DTAB, TTAB, cetyl trimethylammonium bromide, Cetyltrimethylammonium bromide；Described stabilizer is selected from modified Nano SiO2, modified Nano MgO, modified Nano TiO2；Described polymerization inhibitor is sodium citrate；Described auxiliary agent is selected from ethylene glycol, lauryl alcohol；The mineralized water is the mixed aqueous solution of sodium chloride, anhydrous calcium chloride and anhydrous magnesium sulfate.The enhanced low interfacial tension foam system frothing capacity of nano-particle and foam stability energy of the invention is good, interfacial activity is high, cheap and easy to get with raw material, and preparation method is simple, foam good combination property.
Description
Technical field
The present invention relates to oilfield chemistry applied technical field, and in particular to a kind of enhanced low interfacial tension bubble of nano-particle
Foam system and preparation method thereof.
Background technology
China major part oil field all enters middle and high Water-cut Period, and even ultra-high water cut stage, yield is successively decreased year by year, develops lance
Shield is outstanding day by day.From the point of view of the characteristics of China's oil reservoir is current, chemical flooding is effective tertiary recovery mode.Chemical flooding includes polymerization
Thing drive, alkali drive, surfactant flooding and combination flooding (binary combination flooding and ternary composite driving) etc..Polymer injection can improve mobility
Than, improve the swept volume of injection water, improve the development effectiveness of heterogeneous reservoir, but in displacement process medium to high permeable band still
Cause advancing by leaps and bounds for polymer, cause polymer that serious crossfire occurs, make the reduction of polymer displacement of reservoir oil efficiency.Equally, alkali drive, surface
These chemical flooding technologies of surfactant flooding, combination flooding are also easily influenceed by reservoir heterogeneity, the mobility in stratum on longitudinal direction
Differ greatly, chemical agent can not completely arrive at the position of remaining oil enrichment, also cannot fully displacement crude oil, while alkali plus
Enter big to formation damage, and easily cause fouling so as to influence oil well production.
Aerated fluid is non-newtonian fluid, has low leak-off, low-density, meets that water is stable, meets the characteristics such as oil defoaming, with oozing
The increase of saturating rate, the apparent viscosity increase of foam, the mobility difference of high low-permeability layer can be effectively adjusted, it is high hypotonic so as to reach
Permeable layers promote simultaneously, it is possible to achieve the mobility displacement such as stratum, and then improve swept volume.Containing certain density in aerated fluid
Surfactant solution, oil water interfacial tension can be reduced and improve blowhole surface wettability, displacement efficiency is improved, reduce ground
Layer residual oil saturation.It is in the application the stability of raising foam, is commonly incorporated into a certain amount of polymer as foam stabilizer, but
It is that the addition of polymer can reduce the foaming volume of foam, has a negative impact to the foamable of foam, and polymer
Salt tolerant and anti-shear performance are poor, and polymer residue can damage to stratum.
The content of the invention
Present invention aims to overcome that the deficiency of above-mentioned background technology, and provide a kind of frothing capacity is good, foam stability energy is strong,
The enhanced low interfacial tension foam system of the high nano-particle of interfacial activity, present invention also offers a kind of nano-particle is enhanced
The preparation method of low interfacial tension foam system.
To achieve the above object, the enhanced low interfacial tension foam system of a kind of nano-particle provided by the present invention, is pressed
Percent by weight is made up of following component：Cationic surfactant 0.2-0.8%, stabilizer 0.01-0.1%, polymerization inhibitor
0.05%-0.1%, auxiliary agent 0.01-0.04%, mineralising water surplus；
Described cationic surfactant be selected from DTAB, TTAB,
Cetyl trimethylammonium bromide, Cetyltrimethylammonium bromide；
Described stabilizer is selected from modified Nano SiO2, modified Nano MgO, modified Nano TiO2；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is selected from ethylene glycol, lauryl alcohol；
The mineralized water is the mixed aqueous solution of sodium chloride, anhydrous calcium chloride and anhydrous magnesium sulfate.
Preferably, the enhanced low interfacial tension foam system of described nano-particle, percentage is by such as the following group
It is grouped into：
Described cationic surfactant be selected from DTAB, TTAB,
Cetyl trimethylammonium bromide, Cetyltrimethylammonium bromide；
Described stabilizer is selected from modified Nano SiO2, modified Nano MgO, modified Nano TiO2；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is selected from ethylene glycol, lauryl alcohol；
The mineralized water is the mixed aqueous solution of sodium chloride, anhydrous calcium chloride and anhydrous magnesium sulfate.
Most preferably, the enhanced low interfacial tension foam system of described nano-particle, percentage is by such as the following group
It is grouped into：
Described cationic surfactant be selected from DTAB, TTAB,
Cetyl trimethylammonium bromide, Cetyltrimethylammonium bromide；
Described stabilizer is selected from modified Nano SiO2, modified Nano MgO, modified Nano TiO2；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is selected from ethylene glycol, lauryl alcohol；
The mineralized water is the mixed aqueous solution of sodium chloride, anhydrous calcium chloride and anhydrous magnesium sulfate.
In above-mentioned technical proposal, the mineralized water is by mass fraction by 10000 parts of water, 85-95 parts sodium chloride, 8.5-12.5
Part anhydrous calcium chloride, 11.6-15.6 part anhydrous magnesium sulfates mix.
In above-mentioned technical proposal, the mineralized water by mass fraction by 10000 parts of water, 90 parts of sodium chloride, 10.5 parts it is anhydrous
Calcium chloride, 13.6 parts of anhydrous magnesium sulfates mix.
In above-mentioned technical proposal, the modified Nano SiO2Particle diameter be 20-30nm, contact angle is 60-70 °；It is described to change
Property nano-MgO particle diameter be 20-30nm, contact angle be 60-70 °；The modified Nano TiO2Particle diameter be 20-30nm, contact
Angle is 50-60 °.
In above-mentioned technical proposal, the modified Nano SiO2Preparation method be：
1) by Nano-meter SiO_22Powder adds ethanol and is configured to SiO after drying to constant weight2Emulsion, and sonic oscillation 0.5-
0.8 hour, gamma-aminopropyl-triethoxy-silane modifying agent is added dropwise, while deionized water is slowly added dropwise, it is anti-by heating up, flowing back
Ying Hou, obtain suspension；
2) suspension obtained by step 1) is produced into modified Nano SiO after supersound washing, centrifugation and drying2。
According to the preferred embodiments of the invention, in modified Nano SiO2In step 1) in preparation process, with add γ-
Obtained after aminopropyl triethoxysilane modifying agent gross mass in emulsion is 100% meter, the described second of γ-aminopropyl three
The mass fraction of TMOS modifying agent is 0.05-0.07%.
According to the preferred embodiments of the invention, in modified Nano SiO2In step 1) in preparation process, the heating
The temperature for being is 60-75 DEG C.
According to the preferred embodiments of the invention, in modified Nano SiO2In step 1) in preparation process, the backflow
Time is 0.5-1h.
According to the preferred embodiments of the invention, in modified Nano SiO2In step 2) in preparation process, described washes
It is ethanol to wash solvent, and washing times are 3-4 times.
According to the preferred embodiments of the invention, in modified Nano SiO2In step 2) in preparation process, it is described from
Heart speed is 8000-10000r/min.
According to the preferred embodiments of the invention, in modified Nano SiO2In step 2) in preparation process, described is dry
Dry temperature is 60-70 DEG C, drying time 2-3h.
In above-mentioned technical proposal, the preparation method of the modified Nano MgO, comprise the following steps：Nano-MgO powder is passed through
Cross and dry to constant weight, be warming up to 70-80 DEG C, add titanate coupling agent, high-speed stirred 20-25min, make titanate coupling agent
Nano-MgO powder surface is evenly distributed on, is finally cooled to room temperature, produces modified Nano MgO.
According to the preferred embodiments of the invention, in the step in modified Nano MgO preparation process, with modified Nano
MgO gross mass is 100% meter, and the mass fraction of described titanate coupling agent is 0.02-0.05%.
According to the preferred embodiments of the invention, in the step in modified Nano MgO preparation process, the high-speed stirred
Mixing speed be 10000-15000r/min.
In above-mentioned technical proposal, the modified Nano TiO2Preparation method, comprise the following steps：By nano-TiO2Powder
After drying to constant weight, 70-80 DEG C is warming up to, titanate coupling agent is added, high-speed stirred 20-25min, is coupled titanate esters
Agent is evenly distributed on TiO_2 nanoparticles surface, is finally cooled to room temperature, produces modified Nano TiO2。
According to the preferred embodiments of the invention, in modified Nano TiO2In step in preparation process, with modified Nano
TiO2Gross mass for 100% meter, the mass fraction of described titanate coupling agent is 0.01-0.03%.
According to the preferred embodiments of the invention, in modified Nano TiO2In step in preparation process, the high-speed stirring
The mixing speed mixed is 10000-15000r/min.
Present invention also offers a kind of preparation method of the enhanced low interfacial tension foam system of nano-particle, including it is as follows
Step：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 50-150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added in the reactor of step 1), adds remaining mineralized water and (account for ore deposit
The mass percent for changing water gross mass is 40~60%), under 50-150r/min, stirring 0.5-1h stirs, you can.
Compared with prior art, there is following advantage in the present invention：
First, the present invention in foam system by adding suitable modification nano-ZnO, modified Nano SiO2, modified Nano
TiO2Nano-particle, can be acted synergistically with surfactant, make its strong absorption in bubble surface, reduced between foam
Contact area, formed compacted particles film, suppress aggregation and the disproportionation of bubble, extend the drain time of liquid film, while again may be used
Keep stable in oil-water interfaces, so as to reduce oil water interfacial tension, play enhancing foaming properties and reduce oil water interfacial tension
Effect.
Second, the present invention mainly by using compound be industrialized production fine chemicals, raw material is easy to get, raw
It is low to produce cost, and the foam system foaming properties are excellent, foam stabilization time length, it is good with stratum compatible, can effectively it drop
Low interfacial tension.
Third, alkali-free in the foam system of the present invention, so as to reduce the injury that alkali is brought to stratum and oil well, is advantageous to
The suitable development in oil field.
Fourth, after the foam system of the present invention adds nano-particle, adsorption by clay experiment, cationic surfactant are carried out
More than 50% is reduced by the adsorption rate of clay.
Fifth, the foam system of the present invention is free of polymer, stratum can be damaged in the absence of polymer residue.
Sixth, the foam that the foam system of the present invention is generated, under the conditions of temperature is 45-85 DEG C, salinity is
Under conditions of 10000mg/L, calcium-magnesium content are 500mg/L, foaming properties are good, strong foamy body in having reached.
Seventh, the foam system of the present invention is configured to the water that salinity is 10000mg/L, calcium-magnesium content is 500mg/L
Solution ,≤10 can be reached between crude oil-2MN/m ultralow interfacial tension.
Embodiment
Describe the performance of the present invention in detail with reference to embodiment, but they do not form limitation of the invention,
It is only for example.Simultaneously by illustrating that advantages of the present invention will become clearer and be readily appreciated that.
Embodiment 1：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by DTAB, TTAB, ten
Six alkyl trimethyl ammonium bromides, Cetyltrimethylammonium bromide are 1 in mass ratio：2：1：2 mix；
Described stabilizer is by modified Nano SiO2, modified Nano MgO, modified Nano TiO2It is 1 in mass ratio：1：1 mixing
Form；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol and lauryl alcohol are 1 in mass ratio:1 mixes；
The mineralized water is by mass fraction by 10000g water, 85g sodium chloride, 8.5g anhydrous calcium chlorides, 11.6g anhydrous slufuric acids
Magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 150r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 413mL, half foam life period 25min, foamed silver 8543mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 4.1 × 10-3mN/m。
Embodiment 2：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by DTAB, TTAB, ten
Six alkyl trimethyl ammonium bromides, Cetyltrimethylammonium bromide are 1 in mass ratio：1：1：1 mixes；
Described stabilizer is by modified Nano SiO2, modified Nano MgO, modified Nano TiO2It is 1 in mass ratio：1：1 mixing
Form；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol and lauryl alcohol are 1 in mass ratio:1 mixes；
The mineralized water is by mass fraction by 10000g water, 95g sodium chloride, 12.5g anhydrous calcium chlorides, the anhydrous sulphur of 15.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 150r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 411mL, half foam life period 24min, foamed silver 8043mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 3.9 × 10-3mN/m。
Embodiment 3：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by DTAB, TTAB, ten
Eight alkyl trimethyl ammonium bromides are 1 in mass ratio：2：3 mix；
Described stabilizer is by modified Nano SiO2, modified Nano TiO2It is 1 in mass ratio：1 mixes；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol and lauryl alcohol are 1 in mass ratio:1 mixes；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 150r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 420mL, half foam life period 26min, foamed silver 8364mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 6.1 × 10-3mN/m。
Embodiment 4：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant presses matter by TTAB, Cetyltrimethylammonium bromide
Amount is than being 1：1 mixes；
Described stabilizer is by modified Nano MgO, modified Nano TiO2It is 1 in mass ratio：1 mixes；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is ethylene glycol；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 150r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 418mL, half foam life period 26min, foamed silver 8568mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 3.3 × 10-3mN/m。
Embodiment 5：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by DTAB, TTAB, ten
Six alkyl trimethyl ammonium bromides, Cetyltrimethylammonium bromide are 1 in mass ratio：2：3：4 mix；
Described stabilizer is by modified Nano SiO2, modified Nano MgO, modified Nano TiO2It is 1 in mass ratio：2：1 mixing
Form；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol and lauryl alcohol are 1 in mass ratio:2 mix；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 100r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 100r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 428mL, half foam life period 26min, foamed silver 8705mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 1.3 × 10-3mN/m。
Embodiment 6：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by DTAB, cetyl trimethylammonium bromide, ten
Eight alkyl trimethyl ammonium bromides are 1 in mass ratio：2：1 mixes；
Described stabilizer is by modified Nano SiO2, modified Nano MgO in mass ratio be 1：1 mixes；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is lauryl alcohol；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 150r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 421mL, half foam life period 27min, foamed silver 9025mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 6.4 × 10-3mN/m。
Embodiment 7：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant presses matter by cetyl trimethylammonium bromide, Cetyltrimethylammonium bromide
Amount is than being 1：1 mixes；
Described stabilizer is modified Nano SiO2；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is lauryl alcohol；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 1h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 150r/min, stirring 1h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 431mL, half foam life period 27min, foamed silver 9143mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 5.6 × 10-3mN/m。
Embodiment 8：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant presses matter by TTAB, Cetyltrimethylammonium bromide
Amount is than being 1：1 mixes；
Described stabilizer is modified Nano MgO；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is ethylene glycol；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 50r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 0.5h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 50r/min, stirring 0.5h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 421mL, half foam life period 27min, foamed silver 9210mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 5.3 × 10-3mN/m。
Embodiment 9：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by TTAB；
Described stabilizer is modified Nano TiO2；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is lauryl alcohol；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 50r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 0.5h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 50r/min, stirring 0.5h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 433mL, half foam life period 27min, foamed silver 9112mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 5.9 × 10-3mN/m。
Embodiment 10：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by cetyl trimethylammonium bromide；
Described stabilizer is modified Nano SiO2, modified Nano MgO is according to mass ratio 1：1 mixes；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol, lauryl alcohol according to mass ratio are 1:1 mixes；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 50r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 0.5h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 50r/min, stirring 0.5h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 432mL, half foam life period 27min, foamed silver 9042mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 4.7 × 10-3mN/m。
Embodiment 11：
A kind of enhanced low interfacial tension foam system of nano-particle, percentage are made up of following component：
Described cationic surfactant is by TTAB；
Described stabilizer is modified Nano SiO2, modified Nano TiO2According to mass ratio 1：1 mixes；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol, lauryl alcohol according to mass ratio are 1:1 mixes；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 50r/min mixing speed, until being completely dissolved；
2) it is stabilizer, polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) is mixed
Close, through sonic oscillation 0.5h, stabilizer is uniformly dispersed, produce Nano sol；
3) Nano sol obtained by step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent be 40~60%), under 50r/min, stirring 0.5h stir, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 431mL, half foam life period 25min, foamed silver 8934.75mL
Min, strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min,
Measure minimum interfacial tension and reach 5.3 × 10-3mN/m。
Embodiment 12：
A kind of enhanced low interfacial tension foam system of nano-particle, is made up of following component：50g trimethyls
Ammonium bromide, 6g modified Nanos MgO, 7g sodium citrate, 3g lauryl alcohols, surplus are mineralized water.Mineralized water is 10000g water, 90g chlorine
Change sodium, 10.5g anhydrous calcium chlorides, 13.6g anhydrous magnesium sulfates to stir and form.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) DTAB, lauryl alcohol, part mineralized water (at normal temperatures, are accounted for into mineralized water gross mass
Mass percent is 20~30%) it is added in reactor, under 150r/min mixing speed, until dissolving is complete；
2) stabilizer (modified Nano MgO), polymerization inhibitor (sodium citrate) and part mineralized water (are accounted for into mineralized water gross mass
Mass percent is 20~30%) mixing, stabilizer is uniformly dispersed obtained Nano sol through sonic oscillation；
3) Nano sol and remaining mineralized water (mass percent for accounting for mineralized water gross mass is 40~60%) are added
Reactor, stirred under 150r/min mixing speed, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 429mL, half foam life period 25min, foamed silver 8043.75mL
Min, strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min,
Measure minimum interfacial tension and reach 4.3 × 10-2mN/m。
Embodiment 13：
A kind of enhanced low interfacial tension foam system of nano-particle, is made up of following component：40g tetradecyltrimethylammoniums
Ammonium bromide, 2g modified Nanos SiO2, 6g sodium citrates, 2g ethylene glycol, surplus is mineralized water.Mineralized water is 10000g water, 90g chlorine
Change sodium, 10.5g anhydrous calcium chlorides, 13.6g anhydrous magnesium sulfates to stir and form.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) TTAB, acetone, part mineralized water (at normal temperatures, are accounted for into the matter of mineralized water gross mass
Amount percentage is 20~30%) it is added in reactor, under 150r/min mixing speed, until dissolving is complete；
2) by stabilizer (modified Nano SiO2), polymerization inhibitor (sodium citrate) and part mineralized water (account for mineralized water gross mass
Mass percent be 20~30%) mixing, stabilizer is uniformly dispersed obtained Nano sol through sonic oscillation；
3) Nano sol and remaining mineralized water (mass percent for accounting for mineralized water gross mass is 40~60%) are added
Reactor, stirred under 150r/min mixing speed, you can.
Under conditions of temperature 60 C, salinity 15000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, it is 428mL, half foam life period 35min, foamed silver 12840mLmin to measure foam system foaming volume,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 60 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 8.2 × 10-3mN/m。
Embodiment 14：
A kind of enhanced low interfacial tension foam system of nano-particle, is made up of following component：60g cetyl trimethyls
Ammonium bromide, 8g modified Nanos TiO2, 9g sodium citrates, 4g ethylene glycol, surplus is mineralized water.Mineralized water is 10000g water, 90g chlorine
Change sodium, 10.5g anhydrous calcium chlorides, 13.6g anhydrous magnesium sulfates to stir and form.
The preparation method of the enhanced low interfacial tension foam system of nano-particle of the present invention, comprises the following steps：
1) cetyl trimethylammonium bromide, ethylene glycol and part mineralized water (at normal temperatures, are accounted for into mineralized water gross mass
Mass percent is 20~30%) it is added in reactor, under 150r/min mixing speed, until dissolving is complete；
2) by stabilizer (modified Nano TiO2), polymerization inhibitor (sodium citrate) and part mineralized water (account for mineralized water gross mass
Mass percent be 20~30%) mixing, stabilizer is uniformly dispersed obtained Nano sol through sonic oscillation；
3) Nano sol and remaining mineralized water (mass percent for accounting for mineralized water gross mass is 40~60%) are added
Reactor, stirred under 150r/min mixing speed, you can.
Under conditions of temperature 60 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, it is 417mL to measure foam system foaming volume, half foam life period 23min, foamed silver 7193mLmin, is reached
The strong foamy body in.Using TX-500C rotating interfacial tensimeters at 60 DEG C, under the conditions of rotating speed is 5100 revs/min, measure most
Low interfacial tension reaches 8.3 × 10-2mN/m。
Modified Nano SiO in embodiment 1~142, modified Nano MgO, modified Nano TiO2Prepare by the following method respectively and
Into：
Modified Nano SiO2Preparation method, comprise the following steps：
1) by Nano-meter SiO_22Powder adds ethanol and is configured to SiO after drying to constant weight2Emulsion (SiO2Nanometer in emulsion
SiO2Mass fraction for 10%), and sonic oscillation 0.5-0.8 hours, gamma-aminopropyl-triethoxy-silane modifying agent is added dropwise
(the addition and SiO of the gamma-aminopropyl-triethoxy-silane modifying agent2The mass ratio of emulsion is 0.05-0.07：100), together
When deionized water is slowly added dropwise, through being warming up to 60-75 DEG C, backflow 0.5-1h reaction after, obtain suspension；
2) suspension obtained by step 1) is produced into modified Nano SiO after supersound washing, centrifugation and drying2；Its
In, supersound washing is specially to be washed 3-4 times, centrifugal speed 8000-10000r/s using EtOH Sonicate, and dry temperature is
60-70 DEG C, drying time 2-3h.
Modified Nano MgO preparation method, comprises the following steps：
By nano-MgO powder after drying to constant weight, 70-80 DEG C is warming up to, adds the titanate coupling agent (metatitanic acid
The addition of ester coupling agent and the mass ratio of nano-MgO powder are 0.02-0.05：100), low whipping speed 10000-
20-25min is stirred under 15000r/min high-speed condition, titanate coupling agent is evenly distributed on nano-MgO powder surface, most
After be cooled to room temperature, produce modified Nano MgO.
Modified Nano TiO2Preparation method, comprise the following steps：
By nano-TiO2Powder is warming up to 70-80 DEG C after drying to constant weight, adds the titanate coupling agent (titanium
The addition and nano-TiO of acid esters coupling agent2The mass ratio of powder is 0.01-0.03:100), low whipping speed 10000-
High-speed stirred 20-25min under conditions of 15000r/min, makes titanate coupling agent be evenly distributed on nano-TiO2Powder surface,
Room temperature is finally cooled to, produces modified Nano TiO2。
Comparative example 1：
A kind of foam system, percentage are made up of following component：
Described cationic surfactant is by DTAB, TTAB, ten
Eight alkyl trimethyl ammonium bromides are 1 in mass ratio：2：3 mix；Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol and lauryl alcohol are 1 in mass ratio:1 mixes；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of foam system, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) are mixed, through super
Sound oscillation 1h, makes stabilizer be uniformly dispersed, and produces inhibitor solution；
3) inhibitor solution in step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent is 40~60%), under 150r/min, stirring 1h stirs, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 220mL, half foam life period 13min, foamed silver 2364mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 2.1 × 10-1mN/m。
Comparative example 2：
A kind of foam system, percentage are made up of following component：
Described cationic surfactant presses matter by TTAB, Cetyltrimethylammonium bromide
Amount is than being 1：1 mixes；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is ethylene glycol；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of foam system, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 150r/min mixing speed, until being completely dissolved；
2) polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) are mixed, through super
Sound oscillation 1h, makes stabilizer be uniformly dispersed, and produces inhibitor solution；
3) inhibitor solution in step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent is 40~60%), under 150r/min, stirring 1h stirs, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 218mL, half foam life period 14min, foamed silver 3068mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 2.7 × 10-1mN/m。
Comparative example 3：
A kind of foam system, percentage are made up of following component：
Described cationic surfactant is by DTAB, TTAB, ten
Six alkyl trimethyl ammonium bromides, Cetyltrimethylammonium bromide are 1 in mass ratio：2：3：4 mix；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is that ethylene glycol and lauryl alcohol are 1 in mass ratio:2 mix；
The mineralized water is by mass fraction by 10000g water, 90g sodium chloride, 10.5g anhydrous calcium chlorides, the anhydrous sulphur of 13.6g
Sour magnesium mixes.
The preparation method of foam system, comprises the following steps：
1) cationic surfactant, auxiliary agent and part mineralized water (at normal temperatures, are accounted for into the quality hundred of mineralized water gross mass
Fraction is 20~30%) it is added in reactor, under 100r/min mixing speed, until being completely dissolved；
2) polymerization inhibitor and part mineralized water (mass percent for accounting for mineralized water gross mass is 20~30%) are mixed, through super
Sound oscillation 1h, makes stabilizer be uniformly dispersed, and produces inhibitor solution；
3) inhibitor solution in step 2) is added into reactor, adds remaining mineralized water and (account for mineralized water gross mass
Mass percent is 40~60%), under 100r/min, stirring 1h stirs, you can.
Under conditions of temperature 50 C, salinity 10000mg/L, calcium and magnesium 500mg/L, measured using Ross-Miles foams
Instrument, the foaming volume for measuring foam system are 268mL, half foam life period 17min, foamed silver 3729mLmin,
Strong foamy body in reaching.Using TX-500C rotating interfacial tensimeters at 70 DEG C, under the conditions of rotating speed is 5100 revs/min, measure
Minimum interfacial tension reaches 1.6 × 10-1mN/m。
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (10)
1. a kind of enhanced low interfacial tension foam system of nano-particle, it is characterised in that percentage is by such as the following group
It is grouped into：Cationic surfactant 0.2-0.8%, stabilizer 0.01-0.1%, polymerization inhibitor 0.05%-0.1%, auxiliary agent
0.01-0.04%, mineralising water surplus；
Described cationic surfactant is selected from DTAB, TTAB, 16
Alkyl trimethyl ammonium bromide, Cetyltrimethylammonium bromide；
Described stabilizer is selected from modified Nano SiO2, modified Nano MgO, modified Nano TiO2；
Described polymerization inhibitor is sodium citrate；
Described auxiliary agent is selected from ethylene glycol, lauryl alcohol；
The mineralized water is the mixed aqueous solution of sodium chloride, anhydrous calcium chloride and anhydrous magnesium sulfate.
2. the enhanced low interfacial tension foam system of nano-particle according to claim 1, it is characterised in that by weight hundred
Fraction meter is made up of following component：Cationic surfactant 0.4-0.6%, stabilizer 0.02-0.08%, polymerization inhibitor
0.06%-0.09%, auxiliary agent 0.02-0.03%, mineralising water surplus.
3. the enhanced low interfacial tension foam system of nano-particle according to claim 2, it is characterised in that by weight hundred
Fraction meter is made up of following component：Cationic surfactant 0.5%, stabilizer 0.06%, polymerization inhibitor 0.07%, auxiliary agent
0.03%th, mineralising water surplus.
4. the enhanced low interfacial tension foam system of nano-particle according to claim 1 or 2 or 3, it is characterised in that institute
Mineralized water is stated by mass fraction by 10000 parts of water, 85-95 parts sodium chloride, 8.5-12.5 parts anhydrous calcium chloride, 11.6-15.6 parts
Anhydrous magnesium sulfate mixes.
5. the enhanced low interfacial tension foam system of nano-particle according to claim 4, it is characterised in that the mineralising
Water is mixed by mass fraction by 10000 parts of water, 90 parts of sodium chloride, 10.5 parts of anhydrous calcium chlorides, 13.6 parts of anhydrous magnesium sulfates.
6. the enhanced low interfacial tension foam system of nano-particle according to claim 1 or 2 or 3, it is characterised in that institute
State modified Nano SiO2Particle diameter be 20-30nm, contact angle is 60-70 °；The particle diameter of the modified Nano MgO is 20-30nm,
Contact angle is 60-70 °；The modified Nano TiO2Particle diameter be 20-30nm, contact angle is 50-60 °.
7. the enhanced low interfacial tension foam system of nano-particle according to claim 6, it is characterised in that the modification
Nano-meter SiO_22Preparation method be：
1) by Nano-meter SiO_22Powder adds ethanol and is configured to SiO after drying to constant weight2Emulsion, and sonic oscillation 0.5-0.8
Hour, gamma-aminopropyl-triethoxy-silane modifying agent is added dropwise, while deionized water is slowly added dropwise, by heating, back flow reaction
Afterwards, suspension is obtained, wherein, the gamma-aminopropyl-triethoxy-silane modifying agent and SiO2The mass ratio of emulsion is 0.05-
0.07：100；
2) suspension obtained by step 1) is produced into modified Nano SiO after supersound washing, centrifugation and drying2。
8. the enhanced low interfacial tension foam system of nano-particle according to claim 6, it is characterised in that the modification
The preparation method of nano-MgO, comprises the following steps：By nano-MgO powder after drying to constant weight, 80 DEG C are warming up to, is added
Titanate coupling agent, high-speed stirred 20-25min, titanate coupling agent is set to be evenly distributed on nano-MgO powder surface, it is last cold
But to room temperature, modified Nano MgO is produced；Wherein, the mass ratio of the addition of the titanate coupling agent and nano-MgO powder is
0.02-0.05：100.
9. the enhanced low interfacial tension foam system of nano-particle according to claim 6, it is characterised in that the modification
Nano-TiO2Preparation method, comprise the following steps：By nano-TiO2Powder is warming up to 80 DEG C after drying to constant weight, adds
Titanate coupling agent, high-speed stirred 20-25min, makes titanate coupling agent be evenly distributed on nano-TiO2Powder surface, it is last cold
But to room temperature, modified Nano TiO is produced2；Wherein, the addition and nano-TiO of the titanate coupling agent2The mass ratio of powder
For 0.01-0.03:100.
10. prepare the method for the enhanced low interfacial tension foam system of nano-particle described in claim 1 or 2 or 3, its feature
It is, comprises the following steps：
1) at normal temperatures, cationic surfactant, auxiliary agent and part mineralized water are added in reactor, in 50-150r/
Under min mixing speed, until being completely dissolved；
2) stabilizer, polymerization inhibitor and part mineralized water are mixed, through sonic oscillation 0.5-1h, stabilizer is uniformly dispersed, produce
Nano sol；
3) Nano sol obtained by step 2) is added in the reactor of step 1), remaining mineralized water is added, in 50-
Under 150r/min, stirring 0.5-1h stirs, you can.
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Application publication date: 20180109 |