CN101412784A - Method for preparing deep profile modification cationic polymer microlatex from reverse microemulsion - Google Patents
Method for preparing deep profile modification cationic polymer microlatex from reverse microemulsion Download PDFInfo
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- 239000004530 micro-emulsion Substances 0.000 title claims abstract description 14
- 229920006317 cationic polymer Polymers 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims description 8
- 238000012986 modification Methods 0.000 title description 3
- 230000004048 modification Effects 0.000 title description 3
- 239000000178 monomer Substances 0.000 claims abstract description 51
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 239000007864 aqueous solution Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000004094 surface-active agent Substances 0.000 claims abstract description 9
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000001632 sodium acetate Substances 0.000 claims abstract description 8
- 235000017281 sodium acetate Nutrition 0.000 claims abstract description 8
- 125000002091 cationic group Chemical group 0.000 claims abstract description 5
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 35
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 28
- 239000003921 oil Substances 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000004816 latex Substances 0.000 claims description 13
- 229920000126 latex Polymers 0.000 claims description 13
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 12
- 239000013543 active substance Substances 0.000 claims description 11
- 239000003999 initiator Substances 0.000 claims description 11
- 150000001768 cations Chemical class 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 4
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 4
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 4
- 229920001214 Polysorbate 60 Polymers 0.000 claims description 3
- GQOKIYDTHHZSCJ-UHFFFAOYSA-M dimethyl-bis(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C=CC[N+](C)(C)CC=C GQOKIYDTHHZSCJ-UHFFFAOYSA-M 0.000 claims description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 3
- 229920000053 polysorbate 80 Polymers 0.000 claims description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004160 Ammonium persulphate Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004159 Potassium persulphate Substances 0.000 claims description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 claims description 2
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 claims description 2
- 229940113124 polysorbate 60 Drugs 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- 239000012966 redox initiator Substances 0.000 claims description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 2
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 2
- 229960004418 trolamine Drugs 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 2
- 150000001408 amides Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000839 emulsion Substances 0.000 abstract description 3
- 239000012071 phase Substances 0.000 abstract 2
- 239000008346 aqueous phase Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 229920000136 polysorbate Polymers 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 229960004249 sodium acetate Drugs 0.000 description 6
- -1 acrylyl oxy-ethyl Chemical group 0.000 description 5
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XGKPLOKHSA-N [2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XGKPLOKHSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
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- Polymerisation Methods In General (AREA)
Abstract
The invention relates to preparation of a cationic polymer and a micro emulsion for the cationic polymer. The cationic polymer is formed by copolymerization of a cationic monomer and a nonionic monomer, wherein an oil phase of the micro emulsion system is formed by mixing white oil, a span surfactant and a tween surfactant; and an aqueous phase of the micro emulsion system is an aqueous solution of a cationic monomer with surface activity and a nonionic monomer, and contains certain amount of sodium acetate. The polymer micro emulsion has the characteristics that the micro emulsion has low viscosity which is approximate to the viscosity of the oil phase, has obvious Tyndall effect, and can be subjected to emulsion breaking and dispersion quickly in water. The invention can be applied to industries of petroleum extraction and so on; and the polymer micro emulsion can be directly mixed with oil and injected into stratums, and emulsion breaking, expansion and transportation are performed according to the conditions of the stratums, so as to achieve the aim of deep flooding. The micro emulsion overcomes the defects that the prior deep flooding agent is difficult to inject, has low expanding multiplying power, is difficult to transport and so on.
Description
Technical field
The present invention relates to a kind of positively charged ion deep transfer drive micro polymer latex and synthetic method thereof, belong to the water-soluble polymer field.
Background technology
Along with the development of society, people are more and more to demand for energy, and particularly the demand to oil constantly enlarges.But in the middle and later periods of oil production, be water drive and polymer flooding, originally became more outstanding with regard to the serious stratum of nonuniformity, cause injection water and polymers soln along the inhomogeneous propelling of most permeable zone and most permeable zone district, the result causes the sweep efficiency of whole oil filed too low, oil displacement efficiency is poor, has had a strong impact on the water filling in oil field and the exploitation of polymer injection.
Deep transfer drive technology is the effective ways of the raising recovery ratio that grew up in nearly ten years, and it is not the water ratio that simply reduces output liquid by profile control and water plugging, but by in the layer of regulating earth formation deep and interlayer contradiction, reaches the raising recovery ratio.Its principle is to inject crosslinked polymkeric substance to earth formation deep, blocks the water stream channel of high permeability zone, forces the more layer bit flow of current direction hyposmosis surplus oil, and then displaces more surplus oil, realizes improving recovery ratio.
At present, deep profile controlling agent development comparative maturity has weak gel (WG), colloidal dispersed gel (CDG) and precrosslink particle, but their heat and salinity tolerance performance is not fine, and its mobile size is smaller, only can the shutoff low permeability layer, it is inoperative that high infiltration, water are washed away serious layer; In addition, the precrosslink particle since its swelling behavior and difficult injection have limited its development fast.Thereby be necessary to develop obviously macropore plugging transfer drive particle of a kind of salt tolerant heatproof, and has good injection efficiency.Because China's oil field geologic complicated condition, the salinity difference is very big, and reservoir temperature is higher, thus to heat and salinity tolerance, be easy to inject and flow to the research that changes agent and become and be necessary very much.
Therefore, really be more widely used in order to make deep transfer drive technology, particularly environment is made responsive polymer gel to external world, must redesign its polymerization methods.
Summary of the invention
The objective of the invention is to adopt reverse micro emulsion to prepare deep profile modification cationic polymer microlatex, utilize reverse micro emulsion to carry out molecular designing, utilize ionic comonomer and nonionic monomer acrylamide copolymerization, obtain deep transfer drive micro polymer latex.This fine latex not only can directly use, and can reach real transfer drive purpose according to the automatic breakdown of emulsion of strata condition, expansion, migration under formation condition.
The present invention has following characteristics:
1, synthetic cation type polymer fine latex of the present invention has low-down viscosity, is similar to the viscosity of oil phase; Polymkeric substance behind the purifying can rapid molten expansion in fresh water or salt solution.
2, synthetic cation type polymer fine latex of the present invention can spread out rapidly in water.
3, synthetic cation type polymer of the present invention has stronger absorption property, and by regulating two kinds of monomeric consumptions, the adsorptive power of controlling polymers on the stratum can be used for the deep transfer drive.
The present technique invention realizes by following measure:
A kind of cation type polymer, it is the polymkeric substance that is formed by monomer (A) monomer (B) and linking agent (C) copolymerization, it is characterized in that: monomer (A) is a kind of nonionic acrylamide, and monomer (B) is a cationic monomer.The general structure of monomer (B) is:
Wherein: R
1, R
2Be H or CH
3R
3, R
4Be CH
3Or C
2H
5R
5Be CH
3Or C
2H
5M is 1～6; N is 1～10.
Linking agent (C) can be mixture, dimethyl diallyl ammonium chloride of mixture, formaldehyde and the Resorcinol of N,N methylene bis acrylamide, formaldehyde and phenol etc.; It also can be the mixture of above several linking agents.
In cationic crosslinked polymkeric substance, the consumption of water-soluble monomer (A) acrylamide accounts for monomer (A), (B) 10%～90%.Wherein linking agent and monomeric mol ratio are between 1%～0.001%.
The reverse microemulsion liquid system is made up of following material.Oil phase is: No. 10 white oils, No. 15 white oils or its mixture, and tensio-active agent is made up of 60 (Span60) of class of department, 80 (Span80) of class of department, polysorbate60 (Tween60), tween 80 (Tween80), and its HLB value is controlled at 8.4-9.6.
The polymerization process that the present invention adopts is as follows:
In reaction vessel, add white oil and tensio-active agent according to a certain percentage, surfactant mixtures control HLB value is between 8.4-9.6, and controlled temperature is at 20～60 ℃, and stirring velocity is at 300～3000rpm, and churning time is 1～8h; According to consumption monomer (A) and monomer (B) are mixed with the aqueous solution, strength of solution is between 25～60wt%.And then under the condition of stirring, slowly splash into monomer solution, and continue to stir 1～8h, solution temperature is controlled between 20 ℃～70 ℃.Continue to stir, stirring velocity is controlled between 300～1000rpm, logical high pure nitrogen 30min～1h, at first add and contain the cross-linking agent solution of sodium acetate, add water-soluble radical initiator again, the consumption of initiator is monomeric 0.01～0.9% (mol ratio), continue logical nitrogen reaction 2h～24h, obtain transparent micro polymer latex.
What the present invention adopted is the reverse microemulsion process polymerization, used initiator is the redox initiation system that persulphate (ammonium persulphate, Potassium Persulphate, Sodium Persulfate), hydrogen peroxide or itself and sodium bisulfite, S-WAT, Sulfothiorine and trolamine are formed, or water-soluble azo compounds (V50, the two methylpent hydrochlorates of azo), the V50 Chinese is 2,2-azo two (2-miaow base propyl group) dihydrochloride.
Description of drawings
The micro polymer latex photo of Fig. 1 embodiment of the invention has tangible Tyndall effect.
Embodiment
The invention will be further described below in conjunction with embodiment:
Embodiment 1
In reaction vessel, add white oil 80g and tensio-active agent 40g according to a certain percentage, surfactant mixtures control HLB value is between 9.2, and controlled temperature is at 40 ℃, and stirring velocity is at 800rpm, and churning time is 1.5h; According to consumption acrylamide (monomer A), trimethylammonium (acrylyl oxy-ethyl) brometo de amonio (monomers B) are mixed with aqueous solution 15g, strength of solution is (mol ratio of A and B is 9:1) between 55wt%.And then under the condition of stirring, slowly splash into monomer solution, and continue to stir 5h, solution temperature is controlled between 40 ℃.Continue to stir, stirring velocity is controlled between the 300rpm, logical high pure nitrogen 30min, at first add the 0.03% N,N methylene bis acrylamide aqueous solution that contains sodium-acetate, add water-soluble radical initiator V50 0.05g again, continue logical nitrogen reaction 5h, obtain transparent micro polymer latex, blueing light.
Embodiment 2
In reaction vessel, add white oil 80g and tensio-active agent 40g according to a certain percentage, surfactant mixtures control HLB value is between 8.8, and controlled temperature is at 40 ℃, and stirring velocity is at 800rpm, and churning time is 1.5h; According to consumption acrylamide (monomer A), trimethylammonium (acrylyl oxy-ethyl) brometo de amonio (monomers B) are mixed with aqueous solution 20g, strength of solution is (mol ratio of A and B is 7:1) between 55wt%.And then under the condition of stirring, slowly splash into monomer solution, and continue to stir 5h, solution temperature is controlled between 40 ℃.Continue to stir, stirring velocity is controlled between the 300rpm, logical high pure nitrogen 30min, at first add the 0.03% N,N methylene bis acrylamide aqueous solution that contains sodium-acetate, add water-soluble radical initiator V50 0.15g again, continue logical nitrogen reaction 5h, obtain transparent micro polymer latex, blueing light.
Embodiment 3
In reaction vessel, add white oil 80g and tensio-active agent 40g according to a certain percentage, surfactant mixtures control HLB value is between 8.8, and controlled temperature is at 40 ℃, and stirring velocity is at 800rpm, and churning time is 1.5h; According to consumption acrylamide (monomer A), trimethylammonium (acrylyl oxy-ethyl) brometo de amonio (monomers B) are mixed with aqueous solution 20g, strength of solution is (mol ratio of A and B is 7:1) between 55wt%.And then under the condition of stirring, slowly splash into monomer solution, and continue to stir 5h, solution temperature is controlled between 40 ℃.Continue to stir, stirring velocity is controlled between the 300rpm, logical high pure nitrogen 30min, at first add the 0.03% formaldehyde phenol solution that contains sodium-acetate, add water-soluble radical initiator V50 0.1g again, continue logical nitrogen reaction 5h, obtain transparent micro polymer latex, blueing light.
Embodiment 4
In reaction vessel, add white oil 80g and tensio-active agent 40g according to a certain percentage, surfactant mixtures control HLB value is between 8.8, and controlled temperature is at 40 ℃, and stirring velocity is at 800rpm, and churning time is 1.5h; According to consumption acrylamide (monomer A), trimethylammonium (acrylyl oxy-ethyl) brometo de amonio (monomers B) are mixed with aqueous solution 18g, strength of solution is (mol ratio of A and B is 7:1) between 55wt%.And then under the condition of stirring, slowly splash into monomer solution, and continue to stir 5h, solution temperature is controlled between 40 ℃.Continue to stir, stirring velocity is controlled between the 300rpm, logical high pure nitrogen 30min, at first add the 0.08% dimethyl diallyl ammonium chloride aqueous solution that contains sodium-acetate, add water-soluble radical initiator V50 0.1g again,, continue logical nitrogen reaction 5h, obtain transparent micro polymer latex, blueing light.
Embodiment 5
Instead in reaction vessel, add white oil 80g and tensio-active agent 40g according to a certain percentage, surfactant mixtures control HLB value is between 8.8, and controlled temperature is at 40 ℃, and stirring velocity is at 800rpm, and churning time is 1.5h; According to consumption acrylamide (monomer A), trimethylammonium (acrylyl oxy-ethyl) brometo de amonio (monomers B) are mixed with aqueous solution 20g, strength of solution is (mol ratio of A and B is 8:1) between 50wt%.And then under the condition of stirring, slowly splash into monomer solution, and continue to stir 5h, solution temperature is controlled between 40 ℃.Continue to stir, stirring velocity is controlled between the 300rpm, logical high pure nitrogen 30min, at first add the 0.06% formaldehyde phenol solution that contains sodium-acetate, add water-soluble radical initiator V50 0.12g again, continue logical nitrogen reaction 5h, obtain transparent micro polymer latex, blueing light.
Claims (8)
1. cation type polymer, it is the polymkeric substance that is formed by monomer (A), monomer (B) and linking agent (C) copolymerization, it is characterized in that: monomer (A) is a kind of non-ionic monomer, and monomer (B) is a cationic monomer.
2. a kind of cation type polymer as claimed in claim 1 is characterized in that: monomer (A) is water soluble propene's acid amides of nonionic.
3. a kind of cation type polymer as claimed in claim 1 is characterized in that: monomer (B) is an ion monomer, and its general structure is:
Wherein: R
1, R
2Be H or CH
3R
3, R
4Be CH
3Or C
2H
5R
5Be CH
3Or C
2H
5M is 1～6; N is 1～10.
4. a kind of cation type polymer as claimed in claim 1 is characterized in that: be the mixture or the dimethyl diallyl ammonium chloride of mixture, formaldehyde and the Resorcinol of N,N methylene bis acrylamide, formaldehyde and phenol; Also can be above any two kinds of linking agents or above mixture.
5. a kind of cationic polymers as claimed in claim 1, it is characterized in that: the consumption of monomer (A) accounts for 10%～90% of monomer (A), (B) total mole number, the consumption of monomer (B) accounts for 10%～90% of monomer (A), (B) total mole number, and linking agent accounts for 0.01%～1% of monomer (A), (B) total mole number.
6. method for preparing a kind of cation type polymer as claimed in claim 1, the employing reverse microemulsion process aggregates into, it is characterized in that: in reaction vessel, add white oil and tensio-active agent according to a certain percentage, surfactant mixtures control HLB value is between 8.4-9.6, controlled temperature is at 20～60 ℃, and stirring velocity is at 300～3000rpm, and churning time is 1～8h; According to consumption monomer (A) and monomer (B) are mixed with the aqueous solution, strength of solution under condition of stirring, slowly splashes into monomer solution then between 25～60wt%, continues to stir 1～8h, and solution temperature is controlled between 20 ℃～70 ℃; Continue to stir, stirring velocity is controlled between 300～1000rpm, logical high pure nitrogen 30min～1h, at first add the cross-linking agent aqueous solution that contains sodium acetate, add water-soluble radical initiator again, the mole dosage of initiator is 0.01～0.9% of a monomer molar amount, continues logical nitrogen reaction 2h～24h, obtains the transparent polymer fine latex of blueing light.
7. method as claimed in claim 6, it is characterized in that: described initiator is the redox initiation system that ammonium persulphate, Potassium Persulphate, Sodium Persulfate, hydrogen peroxide or itself and sodium bisulfite, S-WAT, Sulfothiorine and trolamine are formed, or water-soluble azo compounds, water-soluble azo compounds is the two methylpent hydrochlorates of V50, azo.
8. method as claimed in claim 6 is characterized in that: the mass ratio of oil phase and water is between 1:5～5:1; Water is that monomer (A) and monomer (B) are mixed with the aqueous solution, and its concentration is between 25%～60%; Comprise white oil and tensio-active agent in the oil phase, white oil is No. 10 white oils, No. 15 white oils or its mixture, tensio-active agent is the mixture of two kinds or more of materials in class of department 60, class of department 80, polysorbate60, the tween 80, wherein, the HLB value is controlled between the 8.4-9.6, and the mass ratio of tensio-active agent and oil is between 1:20～5:1.
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| CNA2008101338132A CN101412784A (en) | 2007-07-11 | 2008-07-11 | Method for preparing deep profile modification cationic polymer microlatex from reverse microemulsion |
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|---|---|---|---|
| CN200710049493 | 2007-07-11 | ||
| CN200710049493.8 | 2007-07-11 | ||
| CNA2008101338132A CN101412784A (en) | 2007-07-11 | 2008-07-11 | Method for preparing deep profile modification cationic polymer microlatex from reverse microemulsion |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766449A (en) * | 2012-07-12 | 2012-11-07 | 中国石油天然气股份有限公司 | Low-temperature crosslinking promoter for polyacrylamide and water-soluble phenolic resin |
| CN102838980A (en) * | 2012-07-26 | 2012-12-26 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | High temperature resistant cleansing emulsion or microemulsion fracturing fluid and preparation method thereof |
| CN104292384A (en) * | 2014-09-19 | 2015-01-21 | 中国海洋石油总公司 | Preparation method of cationic polyacrylamide reverse-phase microemulsion |
-
2008
- 2008-07-11 CN CNA2008101338132A patent/CN101412784A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766449A (en) * | 2012-07-12 | 2012-11-07 | 中国石油天然气股份有限公司 | Low-temperature crosslinking promoter for polyacrylamide and water-soluble phenolic resin |
| CN102838980A (en) * | 2012-07-26 | 2012-12-26 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | High temperature resistant cleansing emulsion or microemulsion fracturing fluid and preparation method thereof |
| CN102838980B (en) * | 2012-07-26 | 2014-05-07 | 中国石油化工股份有限公司胜利油田分公司采油工艺研究院 | High temperature resistant cleansing emulsion or microemulsion fracturing fluid and preparation method thereof |
| CN104292384A (en) * | 2014-09-19 | 2015-01-21 | 中国海洋石油总公司 | Preparation method of cationic polyacrylamide reverse-phase microemulsion |
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