CN104531114B - Nanometer self-emulsifying systems and preparation method thereof - Google Patents
Nanometer self-emulsifying systems and preparation method thereof Download PDFInfo
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- CN104531114B CN104531114B CN201410773016.6A CN201410773016A CN104531114B CN 104531114 B CN104531114 B CN 104531114B CN 201410773016 A CN201410773016 A CN 201410773016A CN 104531114 B CN104531114 B CN 104531114B
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Abstract
The invention discloses a kind of nanometer self-emulsifying systems, it is characterised in that the system is made up of following components：(a) the nano particle hydrosol containing surfactant；And the oil phase of (b) containing emulsifying agent, the oil phase mixes by emulsifying agent, polyethylene glycol and white oil；The wherein described nano particle hydrosol compares 100 with oil phase according to weight：(30 60), preferably 100：(30 50), more preferably 100：(35 45) mix.Present invention also offers the method for the nanometer self-emulsifying systems described in preparation.
Description
Technical field
The present invention relates to a kind of nanometer self-emulsifying systems and preparation method thereof.
Background technology
Transfer drive technology realizes the important technique measure of oil reservoir stable yields as an improving ecology development effectiveness, water and oil control,
The anisotropism of oil reservoir can be cost-effectively adjusted, improved, significant contribution is made that for water controlled field continuously steady production high yield.
But when most of oil reservoirs enter mid-later development phase, the anisotropism of oil reservoir influences increasingly tight to the Flooding Efficiency of water drive, chemical flooding
Weight, anisotropism problem is increasingly serious, and macropore is increasingly developed, and remaining oil increasingly disperses, and high temperature and high salt oil deposit profile control demand increases
Plus, conventional profile modification is deteriorated, and oil reservoir proposes higher requirement to transfer drive technology.The self-emulsifying behavior of nano material, is deep
Portion's transfer drive closure dominant flowing path provides feasibility.The drop that self-emulsifying is produced can block stratum by Jamin effect,
And aggregation high resiliency is characterized as selective shut-off there is provided possible.Meanwhile, the characteristic of the adaptive material of nanometer can make transfer drive body
System's migration closure is controllable, profile control agent positioning is placed and special oil reservoir environmental applications become possible to.Nanometer self-emulsifying systems have height
Reactivity, high cohesion energy, and process is reversible, even if destruction, can be emulsified, nanometer self-emulsifying again under certain condition
This emulsifying capacity again of system is that permanently effective provide of transfer drive system may.
The nanometer self-emulsifying systems for being adapted to commercial Application are further prepared, are still the problem of needing to solve at present.
The content of the invention：
It is an object of the invention to provide a kind of nanometer self-emulsifying systems, it is characterised in that the system is by following components structure
Into：
(a) the nano particle hydrosol containing surfactant；And
(b) oil phase containing emulsifying agent, the oil phase is mixed by emulsifying agent, polyethylene glycol and white oil；
The wherein described nano particle hydrosol compares 100 with oil phase according to weight：(30-60), preferably 100：(30-50), more
It is preferred that 100：(35-45) is mixed.
The present invention also provides a kind of method for preparing described nanometer self-emulsifying systems, comprises the steps of：
(A) the nano particle hydrosol is prepared：Nano particle, surfactant, sodium carbonate are sequentially added in a reservoir
Ionized water, stirs；
(B) oil phase is prepared：White oil is added in a kettle., and stirring is lower to add emulsifying agent and polyethylene glycol, stirs；
(C) nanometer self-emulsifying systems are prepared：Under agitation toward being slowly added in (A) step in the oil phase in (B) step
The nano particle hydrosol, addition continues to stir at least 30min after finishing.
The nanometer self-emulsifying systems of the present invention have advantages below：System stability is good；Cost is low；Oil mixing with water body can be made
System forms the preferable emulsification system of effect, is suitable as the profile control agent of high temperature and high salt oil deposit.
Embodiment
The present invention provides a kind of nanometer self-emulsifying systems, it is characterised in that the system is made up of following components：
(a) the nano particle hydrosol containing surfactant；And
(b) oil phase containing emulsifying agent, the oil phase is mixed by emulsifying agent, polyethylene glycol and white oil；
The wherein described nano particle hydrosol compares 100 with oil phase according to weight：(30-60), preferably 100：(30-50), more
It is preferred that 100：(35-45) is mixed.
In the component (a) of the present invention, the nano particle hydrosol is by nano particle, surfactant and sodium carbonate group
Into wherein based on 100 parts by weight nano particle hydrosol meters, nano particle is 10-30 parts by weight, and surfactant is 10-16
Parts by weight, sodium carbonate is 10-15 parts by weight, and surplus is deionized water.
In the component (a) of the present invention, the nano particle is acrylic/hydrotalcite-like nano particle, nano SiO 2 particle, lithium
Saponite nano particle or oxidized metal nano particle, preferably metal such as titanium, zinc, aluminium, magnesium, iron, nickel, chromium, titanium, zinc.It is described
Nano particle preferred 10-50nm, preferably 20-45nm more preferably 20-35nm.
In one embodiment of the invention, the preferred hectorite nano particle of described nano particle or houghite are received
Rice grain, more preferably hectorite nano particle.
The hectorite nano particle is the good disc-like particles of monodispersity, and grain thickness is about 1nm, and diameter is about
25nm.It is 2:1 type phyllosilicate, respectively has a tetrahedral si-o film to share oxygen therewith in the both sides of the octahedra lamella of magnesia
Part Mg in atom, lattice2+By Li+Displacement, makes its surface carry permanent negative electrical charge, surface negative charge density is about 1.4e/
nm2.In addition, when hectorite particle is dispersed in aqueous phase, protonation can occur for grain edges hydroxyl, cause its edge can band
There is a small amount of positive charge.The average chemical of hectorite is constituted：SiO266.2%；MgO 30.2%；Na2O 2.9%；Li2O
0.7%, corresponding chemical formula is [(Si8(Mg5.34Li0.66)O20(OH)4]Na0.66。
Dispersiveness of the hectorite in water is preferable, in low concentration, the transparent flow-like of hectorite aqueous dispersion
State, when granule density is more than 2wt%, dispersion quickly forms gel.The formation of this gel structure, mainly due to clay
The side of particle and face oppositely charged, attract each other between the face and side of variable grain in the presence of electrostatic attraction, make
Intergranular interconnects to form side face associative structure, and is further strengthened by model ylid bloom action, forms " card house " formula three-dimensional
Network structure.
The acrylic/hydrotalcite-like nano particle is expressed by the following formula：[M2+ 1-x M3+ x(OH)2]x+An- x/n·mH2O,
Wherein, M2+Refer to divalent metal, such as Mg2+, Fe2+, Ni2+, Co2+, Zn2+；M3+Refer to trivalent metal cation, such as
Al3+, Cr3+, Fe3+, Co3+, Ni3+；X is the number of trivalent metal ion；A refers to the anion that valence mumber is n, such as Cl-, OH-,
NO3 -, CO3 2-, SO4 2-；M is the number of interlayer hydrone.It is preferred that expressed by the following formula：[M2+ 1-x M3+ x(OH)2]x+An- x/n·
mH2O, wherein, M2+Refer to divalent metal Mg2+；M3+Refer to trivalent metal cation Al3+；X is the number of trivalent metal ion；
A refers to the anion Cl that valence mumber is n-, OH-, NO3 -, CO3 2-, SO4 2-；M is the number of interlayer hydrone；Wherein Mg:Al mol ratios
For 3:1.
In the component (a) of the present invention, the surfactant is anion surfactant, such as dodecyl sulphate
Sodium, dodecyl sodium sulfate, neopelex, sodium laurate；Preferably sodium dodecyl sulfate.
In the component (b) of the present invention, based on 100 parts by weight oil phase meters, the emulsifying agent is 10-30 parts by weight, poly- second two
Alcohol 10-30 parts by weight, surplus is white oil.
In the component (b) of the present invention, the emulsifying agent is Span class emulsifying agent, such as sapn S-80 or S-
85。
The polyethylene glycol of the preferred low molecule amount of polyethylene glycol, such as polyethylene glycol 400, Macrogol 600.
Present invention also offers the method for the nanometer self-emulsifying systems described in preparation, comprise the steps of：
(A) the nano particle hydrosol is prepared：Nano particle, surfactant, sodium carbonate are sequentially added in a reservoir
Ionized water, stirs；
(B) oil phase is prepared：White oil is added in a kettle., under stirring, is added emulsifying agent and polyethylene glycol, is stirred；
(C) nanometer self-emulsifying systems are prepared：Under stirring, receiving in (A) step is slowly added into the oil phase in (B) step
The rice grain hydrosol, addition continues to stir at least 30min after finishing.
In one embodiment of the invention, mixing speed is in 100-450rpm, preferably 100- in step (B)
200rpm。
In one embodiment of the invention, mixing speed is in 500-1000rpm, preferably 600- in step (C)
800rpm。
In one embodiment of the invention, in step (C), the addition of the nano particle hydrosol continues to stir after finishing
30-120min。
In the present invention, if without opposite explanation, operating and being carried out in normal temperature and pressure conditionses.
In the present invention, unless otherwise indicated, otherwise all numbers, percentage are based on weight meter.
In the present invention, material used is known substance, commercially available or synthesized by known method.
In the present invention, equipment therefor or equipment are conventional equipment or equipment known to the field, commercially available.
The present invention is described in further detail below in conjunction with embodiment.
Embodiment
Agents useful for same and medicine in embodiment：
Hectorite nano particle is purchased from Rockwood Additives companies of Britain
Dodecyl sodium sulfate is purchased from China Medicine (Group) Shanghai Chemical Reagent Co.,
Acrylic/hydrotalcite-like nano particle is purchased from Rockwood Additives companies of Britain
Sapn S-80 is purchased from China Medicine (Group) Shanghai Chemical Reagent Co.,
Sapn S-85 is purchased from China Medicine (Group) Shanghai Chemical Reagent Co.,
White oil is wide into chemical reagent Co., Ltd purchased from Tianjin
Polyethylene glycol is purchased from China Medicine (Group) Shanghai Chemical Reagent Co.,
Zinc oxide is purchased from China Medicine (Group) Shanghai Chemical Reagent Co.,
Embodiment 1
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 25nm hectorite nano particle 20kg, dodecyl sodium sulfate
Stirring under 10kg, sodium carbonate 10kg, deionized water 60kg, 200rpm is until uniform；
(B) oil phase is prepared：White oil 65Kg is added in a kettle., and under 200rpm mixing speeds, adding sapn S-80 is
20Kg and polyethylene glycol 400 are 15Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 1000rpm mixing speeds, the 45Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 100min after finishing, obtain a nanometer self-emulsifying systems.
Embodiment 2
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 25nm hectorite nano particle 30kg, dodecyl sodium sulfate
Stirring under 16kg, sodium carbonate 14kg, deionized water 40kg, 300rpm is until uniform；
(B) oil phase is prepared：White oil 55Kg is added in a kettle., and under 450rpm mixing speeds, adding sapn S-85 is
25Kg and polyethylene glycol 400 are 20Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 1000rpm mixing speeds, the 35Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 100min after finishing, obtain a nanometer self-emulsifying systems.
Embodiment 3
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 25nm hectorite nano particle 10kg, dodecyl sodium sulfate
Stirring under 15kg, sodium carbonate 10kg, deionized water 65kg, 200rpm is until uniform；
(B) oil phase is prepared：White oil 65Kg is added in a kettle., and under 200rpm mixing speeds, adding sapn S-80 is
10Kg and polyethylene glycol 400 are 25Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 1000rpm mixing speeds, the 50Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 90min after finishing, obtain a nanometer self-emulsifying systems.
Embodiment 4
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 25nm hectorite nano particle 20kg, dodecyl sodium sulfate
Stirring under 12kg, sodium carbonate 14kg, deionized water 54kg, 200rpm is until uniform；
(B) oil phase is prepared：White oil 55Kg is added in a kettle., and under 200rpm mixing speeds, adding sapn S-80 is
30Kg and polyethylene glycol 400 are 15Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 800rpm mixing speeds, the 30Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 100min after finishing, obtain a nanometer self-emulsifying systems.
Embodiment 5
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 25nm hectorite nano particle 25kg, dodecyl sodium sulfate
Stirring under 14kg, sodium carbonate 11kg, deionized water 50kg, 200rpm is until uniform；
(B) oil phase is prepared：White oil 50Kg is added in a kettle., and under 200rpm mixing speeds, adding sapn S-85 is
25Kg and polyethylene glycol 400 are 25Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 1000rpm mixing speeds, the 30Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 120min after finishing, obtain a nanometer self-emulsifying systems.
Embodiment 6
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 30nm acrylic/hydrotalcite-like nano particle 24kg, dodecyl sodium sulfonate
Stirring under sodium 14kg, sodium carbonate 12kg, deionized water 50kg, 200rpm is until uniform；
(B) oil phase is prepared：White oil 50Kg is added in a kettle., and under 200rpm mixing speeds, adding sapn S-80 is
25Kg and Macrogol 600 are 25Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 1000rpm mixing speeds, the 35Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 120min after finishing, obtain a nanometer self-emulsifying systems.
Embodiment 7
Prepare nanometer self-emulsifying systems：
(A) the nano particle hydrosol is prepared：Add particle diameter 30nm Zinc oxide particles 22kg, dodecyl sodium sulfate
Stirring under 14kg, sodium carbonate 12kg, deionized water 52kg, 200rpm is until uniform；
(B) oil phase is prepared：White oil 50Kg is added in a kettle., and under 200rpm mixing speeds, adding sapn S-80 is
26Kg and Macrogol 600 are 24Kg, stirring until uniform；
(C) nanometer self-emulsifying systems are prepared：Under 1000rpm mixing speeds, the 38Kg oil phases prepared in (B) step are added
Enter in the 100Kg nano particle hydrosols in (A) step, continue to stir 120min after finishing, obtain a nanometer self-emulsifying systems.
Claims (16)
1. a kind of nanometer self-emulsifying systems, it is characterised in that the system is made up of following components：
(a) the nano particle hydrosol containing surfactant；And
(b) oil phase containing emulsifying agent, the oil phase is mixed by emulsifying agent, polyethylene glycol and white oil；
The wherein described nano particle hydrosol compares 100 with oil phase according to weight：(30-60) is mixed；
The wherein described nano particle hydrosol is made up of nano particle, surfactant and sodium carbonate, wherein based on 100 weight
Part nano particle hydrosol meter, nano particle is 10-30 parts by weight, and surfactant is 10-16 parts by weight, and sodium carbonate is 10-
15 parts by weight, surplus is deionized water；
Wherein described nano particle is acrylic/hydrotalcite-like nano particle, nano SiO 2 particle, hectorite nano particle or oxygen
Change metal nanoparticle.
2. as claimed in claim 1 nanometer of self-emulsifying systems, wherein the nano particle hydrosol and oil phase are according to weight ratio
100：(30-50) is mixed.
3. as claimed in claim 1 nanometer of self-emulsifying systems, wherein the nano particle hydrosol and oil phase are according to weight ratio
100：(35-45) is mixed.
4. as claimed in claim 1 nanometer of self-emulsifying systems, it is characterised in that based on 100 parts by weight oil phase meters, the emulsification
Agent be 10-30 parts by weight, polyethylene glycol 10-30 parts by weight, surplus is white oil.
5. as claimed in claim 1 nanometer of self-emulsifying systems, it is characterised in that the nano particle is acrylic/hydrotalcite-like nano
Grain or hectorite nano particle.
6. as claimed in claim 1 nanometer of self-emulsifying systems, it is characterised in that the metal in the oxidized metal nano particle
For titanium, zinc, aluminium, magnesium, iron, nickel or chromium.
7. as claimed in claim 6 nanometer of self-emulsifying systems, it is characterised in that the metal is titanium or zinc.
8. as claimed in claim 1 nanometer of self-emulsifying systems, it is characterised in that the surfactant is lived for anionic surface
Property agent, its be lauryl sodium sulfate, dodecyl sodium sulfate, neopelex or sodium laurate.
9. as claimed in claim 8 nanometer of self-emulsifying systems, it is characterised in that the surfactant is dodecyl sulphate
Sodium.
10. as claimed in claim 1 nanometer of self-emulsifying systems, it is characterised in that the emulsifying agent is Span class
Emulsifying agent.
11. as claimed in claim 10 nanometer of self-emulsifying systems, it is characterised in that the emulsifying agent is sapn S-80, S-85.
12. a kind of method for preparing the nanometer self-emulsifying systems as described in claim any one of 1-11, is comprised the steps of：
(A) the nano particle hydrosol is prepared：Nano particle, surfactant, sodium carbonate are sequentially added into deionization in a reservoir
Water, stirs；
(B) oil phase is prepared：White oil is added in a kettle., and stirring is lower to add emulsifying agent and polyethylene glycol, stirs；
(C) nanometer self-emulsifying systems are prepared：Under agitation toward the nanometer being slowly added in the oil phase in (B) step in (A) step
The particle hydrosol, addition continues to stir at least 30min after finishing；
The wherein described nano particle hydrosol is made up of nano particle, surfactant and sodium carbonate, wherein based on 100 weight
Part nano particle hydrosol meter, nano particle is 10-30 parts by weight, and surfactant is 10-16 parts by weight, and sodium carbonate is 10-
15 parts by weight, surplus is deionized water；
Wherein described nano particle is acrylic/hydrotalcite-like nano particle, nano SiO 2 particle, hectorite nano particle or oxygen
Change metal nanoparticle；
The wherein described nano particle hydrosol compares 100 with oil phase according to weight：(30-60) is mixed.
13. mixing speed is in 100- in the method for as claimed in claim 12 nanometer of self-emulsifying systems, wherein step (B)
450rpm；Mixing speed is in 500-1000rpm in step (C).
14. mixing speed is 100- in the method for as claimed in claim 13 nanometer of self-emulsifying systems, wherein step (B)
200rpm。
15. mixing speed is 600- in the method for as claimed in claim 13 nanometer of self-emulsifying systems, wherein step (C)
800rpm。
16. in the method for as claimed in claim 12 nanometer of self-emulsifying systems, wherein step (C), the nano particle hydrosol adds
Enter and continue to stir 30-120min after finishing.
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| CN104927814B (en) * | 2015-05-08 | 2018-03-20 | 中国石油化工股份有限公司 | Profile control nanometer self aggregation system and preparation method thereof |
| CN104893786B (en) * | 2015-05-28 | 2017-06-30 | 清华大学 | A kind of preparation and application method of hydrotalcite nano additive |
| CN107434970A (en) * | 2016-05-27 | 2017-12-05 | 中国石油化工股份有限公司 | A kind of nano particle emulsion thickener and preparation method thereof |
| CN113717704A (en) * | 2021-08-07 | 2021-11-30 | 天津市雄冠科技发展有限公司 | Preparation method of intelligent profile control agent for oil field |
| CN116023916A (en) * | 2021-10-25 | 2023-04-28 | 中国石油化工股份有限公司 | Nanometer self-adaptive profile control and flooding agent and preparation method thereof |
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| CN102746841A (en) * | 2012-06-29 | 2012-10-24 | 中国石油大学(华东) | Nanoparticle-added composite foam system used for oil and gas field and preparation method thereof |
| CN103387828A (en) * | 2012-05-09 | 2013-11-13 | 中国石油化工股份有限公司 | Method for dispersing nanometer materials in clean fracturing fluid |
| CN103937478A (en) * | 2014-04-16 | 2014-07-23 | 东北石油大学 | Preparation method of nanofluid for improving oil recovery |
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| CN103387828A (en) * | 2012-05-09 | 2013-11-13 | 中国石油化工股份有限公司 | Method for dispersing nanometer materials in clean fracturing fluid |
| CN102746841A (en) * | 2012-06-29 | 2012-10-24 | 中国石油大学(华东) | Nanoparticle-added composite foam system used for oil and gas field and preparation method thereof |
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