CN102633955B - Anti-shearing polymer and preparation method thereof - Google Patents
Anti-shearing polymer and preparation method thereof Download PDFInfo
- Publication number
- CN102633955B CN102633955B CN 201210117149 CN201210117149A CN102633955B CN 102633955 B CN102633955 B CN 102633955B CN 201210117149 CN201210117149 CN 201210117149 CN 201210117149 A CN201210117149 A CN 201210117149A CN 102633955 B CN102633955 B CN 102633955B
- Authority
- CN
- China
- Prior art keywords
- monomer
- polymer
- solution
- preparation
- functionalization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to an anti-shearing polymer and a preparation method thereof. The polymer is a copolymer composed of acrylic amide, sodium acrylate, hydrophobic monomer dimethyl allyl-N-alkyl ammonium chloride and a functionalized framework monomer. The average molecular weight of the copolymer is 6 million. The preparation method comprises the following steps of: (1) respectively dissolving a polyamide-amide macromolecular framework monomer and maleic anhydride (or acryloyl chloride and acrylic anhydride) into dimethyl sulfoxide; slowly dropwise adding a framework monomer solution into a maleic anhydride solution; introducing nitrogen and placing the system into an ice salt bath; when the pH (Potential of Hydrogen) value of a reaction solution is 4-5, stopping dropwise adding the framework monomer solution; and utilizing chloroform to repeatedly precipitate to obtain the functionalized framework monomer; and (2) carrying out free radical water solution polymerization on the acrylic amide, acrylic acid, the hydrophobic monomer and the functionalized framework monomer. The anti-shearing polymer and the preparation method thereof have the advantages of reliable principle and convenience for operation; and the synthesized polymer still has good tackifying capability under high-temperature, high-salinity and strong shearing effects.
Description
Technical field
The present invention relates to a kind of Shearing Resistant Polymer and preparation method thereof, belong to polymeric material field.
Background technology
Technique of polymer flooding is the technical way that China's oil-field development improves oil recovery factor, and all obtained technically and economically certain success, be widely used in polymer displacement of reservoir oil tech tertiary oil recovery at home and abroad, have broad application prospects.Along with the further exploitation of the national economic development and hydrocarbon resources, require more and more urgent to improving recovery ratio.
In order to improve the polymer flooding effect and to satisfy day by day abominable reservoir condition requirement, the stability of water-soluble polymers is had higher requirement, as have higher glutinous ability and the stability of increasing.Stability mainly comprises shear stability, chemical stability, thermostability, biologically stable and long-acting stability etc.Particularly, under the impact of high temperature, high salinity, the anti-shear performance of water-soluble polymers significantly descends, and is the main problem that present polymer oil-displacing agent faces.Studies show that, polyacrylamide solution is 66.7s in shearing rate
-1Viscosity loss after the lower 2min of shearing continuously is up to more than 90%, and viscosity can not be recovered, had a strong impact on measure effect (Lei Qiaohui, Tian Genlin, Zheng Dewen etc. the research of polymer viscosity slitter loss and recovery [J]. Xi'an shiyou University's journal (natural science edition) .1997,12 (06): 36-38).
As far back as 1986, the people such as Ryles of U.S. Cyanamid company just developed the partially hydrolyzed polyacrylamide of high molecular as the water-soluble polymers of mobility control and profile control.In order to adapt to high temperature, high salinity, the higher reservoir condition of divalent ion content particularly, improve long-term thermal stability and the shear-stable ability of partially hydrolyzed polyacrylamide solution, the researchist constantly pursues the partially hydrolyzed polyacrylamide of high molecular and ultra-high molecular weight, develops at present relative molecular mass up to 200～300 * 10
6HPAM, and just towards the target struggle that produces high molecular weight HPAM more (Qi Jinli. the Sanan oilfield high concentration polymer drives scheme optimization and effect assessment [D]. Beijing: The Chinese Geology Univ. (Beijing), 2010).Simultaneously, the researchist introduces the group (as Ionomer, association polymer etc.) with Specific Interactions on polymer molecular chain, rely on and strengthen in the molecule of polymer molecule in the aqueous solution or intermolecular reactive force (electrostatic force, hydrophobic association power etc.), improve heatproof, salt tolerant and the anti-shear performance (He Jing of polymkeric substance, Wang Manxue, Wu Jinqiao etc. the Study on influencing factors of viscosity of hydrophobic associated polymer solution [J]. oilfield chemistry .2011,28 (03): 259-262.); Wherein hydrophobic association polyacrylamide is to introduce a small amount of hydrophobic grouping on the polymer macromolecule chain, thereby polymer molecule is in the aqueous solution, formed by the hydrophobic association effect and have the also network solution structure of reversible physics " crosslinked " of some strength, improve tackifying, salt tolerance and the shear resistant of polymers soln, had application prospect preferably.But be subject to injection and solubility property requirement, the hydrophobic grouping content on the hydrophobic associated polymer molecular chain is lower; In order effectively to improve the tackifying ability of polymers soln, improve the hydrophobic associated polymer molecular weight by several different methods and means, realize improving solvability and the tackifying ability of hydrophobic associated polymer.
But in polymer solution preparation and injection process, polymers soln all can suffer mechanical shearing from ground to underground whole process, namely the process at preparation (agitator), transportation (pipeline member, pump, valve), injection (sleeve pipe borehole) and the pore media of flowing through all shear degradation can occur.Particularly, in the immediate vicinity of wellbore, because the flow velocity of polymers soln is very fast, its shear rate that is subject to is particularly for serious.Its shearing action is mainly the length that has reduced polymer molecular chain, cause polymer solution viscosity decline (Ye Zhongbin, Peng Yang, Shi Leiting etc. the impact [J] of porous medium shearing action on polymers soln visco-elasticity and oil displacement efficiency. oil-gas geology and recovery ratio .2008,15 (5): 59-62).The Daqing oil field mining site is used monitoring result and is shown, from be formulated into the Injection Well well head, apart from the monitor well of Injection Well 30m, apart from the recovery well of Injection Well 106m, viscosity loss is respectively 10%, 30%, 70%, polymers soln plays the displacement effect in oil reservoir virtual viscosity only for 1/3 left and right of preparation viscosity (Zhang Zhen China etc. polymer flooding site pilot test technology [M]. Beijing: petroleum industry press, 1996:207); The mining site experiment of Shengli Oil Field shows: the viscosity that the preparation of polymers soln, Injection Well well head, Injection Well return row and the sampling of detection well is respectively 12.3mPas, 7.7mPas, 4.4mPas and 4.1mPas, viscosity total losses 66.7% (Wang Youqi, Zhang Yigen. affect several problems [J] of Polymer Flooding implementation result. oilfield chemistry, 1999,16 (3): 244～246); North China Oilfield is injected flow process at Study Polymer Melts polymer performance impact test is found, the pit shaft perf is the most serious to the shearing of polymers soln, the viscosity loss rate is up to 42.3% (Geng Yuguang, Li Shanwei etc. Eor In Huabei Oilfield Pilot trial research [J]. drilling technique, 1998,21 (5): 26～29); Oil Field SZ36 1 in Bohai returns row's sampling result and shows: the polymer solution viscosity rate of loss is greater than 80% (Zhang Xiansong, the Sun Fu street, Feng Guozhi, Yang Junru. testing in Bohai heavy oil fields research on influence factors of polymer flooding and test in place [J]. Chinese offshore oil and gas, 2007,19 (1): 30～34).Due to viscosity loss, cause the polymer flooding Efficiency Decreasing, seriously affected the polymer flooding effect.
There is following problem in the high temperature and high salinity reservoir polymer when driving: (1) is due to the electrostatic shielding effect between positively charged ion, positively charged ion can with polymer molecule on negative charge attract each other, thereby make polymer molecule become uncharged molecule and occur Texturized, hydrodynamic radius reduces, the tackifying variation; (2) divalent cation (Ca
2+, Mg
2+) with polymer molecular chain on-COO-group generation complexing forms indissoluble thing or insolubles, thereby the viscosity of polymers soln significantly reduced; Synergy between calcium and magnesium ion can be than larger on the impact of polymers soln with the simple salt condition of concentration, and reduced viscosity is more; (3) positively charged ion and polymer molecular chain effect cause polymerizable molecular chain rigidity variation, and the probability that polymer molecule is sheared degraded under high speed shear increases greatly, makes the shear resistant variation of polymkeric substance.
Hyperbranched polymer is to have the macromole of highly branched structure by the class that the reaction that the branching primitive progressively repeats obtains, and is youth and fast-developing field is the new polymkeric substance with special property that emerges of a class in macromolecular science.Different from traditional simple linear polymer or star-type polymer, hyperbranched macromolecular has the character (K.|shizu such as three-dimensional structure and a large amount of end group and high resolution, rigid structure, extensive chemical reactive behavior, D.Takahashi, H.Takeda.Novel synthesis and characterzation of hyperbranched polymers[J] .Polymer.2000,41 (16): 6081-6086).Due to the special construction character of hyperbranched macromolecular, be with a wide range of applications at catalysis, medical science, nano composite material, separatory membrane and sewage-treating agent, sensor, material modification and other material functional field.Exist substantial connection between polymer performance and structure (short-range structure of macromolecular chain, long-range structure, high molecular aggregated structure), can effectively change the macro property of polymkeric substance by adjustment and control texture; Utilize the characteristic of hyperbranched macromolecular, in conjunction with the thickening property of linear polymer, help to improve the shear resistant problem of polymkeric substance.
The synthetic method of hyperbranched polymer has many, according to monomer type, mainly can be divided into two large classes.One class is monounsaturated monomer method (single-monomer methodology, SMM), is mainly to utilize AB
nType or potential AB
nThe type monomer carries out polymerization; Another kind of is two simplex methods (double-monomer methodology, DMM), and this method need to be with two kinds of monomers or a pair of monomer to carrying out polymerization.Selecting commercial AB type monomer (methyl acrylate) and Cn type monomer (quadrol) is raw material, the process simplification of synthesizing water-solubility over-branched polyamidoamine, and cost is lower, and can change easily structure and the performance of over-branched polyamidoamine.(Gao, C.and Yan, D.Y.Hyperbranched polymers:From synthesis to applications[J] .Prog.Polym.Sci., 2004,29,183-275., Liu Cuihua. [D] studied in the encapsulation of synthetic and supramolecule and the supramolecule self-assembly of hyperbranched polymer. Shanghai: Shanghai Communications University, 2007).Because inside and the end group of hyper-branched polymer contains a large amount of active groups, can utilize functional end-group, " functional " small molecules is connected to the end of hyperbranched polymer or take hyperbranched macromolecular as other polymkeric substance of core medium, formation have certain function branched polymer material (superb. the molecular designing of hyperbranched polymer, synthetic, sign and functionalization research [D]. Shanghai: Shanghai Communications University, 2001).
The ability that adapts to more and more abominable reservoir media in order to improve polymkeric substance, need to overspend the constructional feature of polymkeric substance and the tackify characteristic of linear molecule is carried out Molecular Structure Design by combination, be intended to change the polymer viscosified mode, reduce polymkeric substance unit molecule hydrodynamic radius when improving the polymer molecule rigidity, realize that polymkeric substance has good tackifying ability in high salinity solution, reach the purpose that has better anti-shear performance and higher mobility control ability in oil reservoir.
Summary of the invention
The object of the present invention is to provide a kind of Shearing Resistant Polymer, this polymkeric substance is formed by acrylamide, vinylformic acid, hydrophobic monomer and functionalization skeleton monomer copolymerization, under high temperature, high salinity media, this polymkeric substance utilizes the chain rigidity of molecular skeleton, strengthen Interchain interaction and the suitable length that reduces the flexible molecule chain, improve the anti-shear ability of polymer molecular chain, and relied on intermolecular mutual association, improved the polymers soln tackifying ability.
Another object of the present invention also is to provide the preparation method of this Shearing Resistant Polymer, this preparation method is that acrylamide, vinylformic acid, hydrophobic monomer and functionalization skeleton monomer pass through free yl solution polymerization, principle is reliable, easy and simple to handle, synthetic polymkeric substance still has good tackifying ability under high temperature, high salinity and strong shearing action.
For reaching above technical purpose, the invention provides following technical scheme.
Relatively poor for polymkeric substance anti-shear ability under high temperature, high salinity condition, from the polymer molecular structure design, characteristics in conjunction with heatproof, salt tolerant ultra-high molecular weight line style partially hydrolyzed polyacrylamide, comb-shaped polymer and hydrophobic associated polymer, utilize the chain rigidity of polymer molecule skeleton, strengthening the polymer molecule interchain interaction suitable length that reduces the flexible molecule chain simultaneously, reduce the probability of shearing action reduction polymericular weight in the polymer flooding process, improve the anti-shear ability of polymer molecular chain.
The daiamid macromole be a kind of skeleton monomer with dissaving structure (Liu Cuihua. [D] studied in synthetic and supramolecule encapsulation and the supramolecule self-assembly of hyperbranched polymer. Shanghai: Shanghai Communications University, 2007), its over-branched polyamidoamine macromole is as shown in the figure:
This daiamid macromolecular skeleton monomer is carried out functionalization form functionalization skeleton monomer, described functionalization is exactly that skeleton monomer and functionalized reagent react, have thereby form the two keys that carry out next step polymerization, can react with acrylamide, vinylformic acid and hydrophobic monomer under mild conditions.Described functionalized reagent is MALEIC ANHYDRIDE, acrylate chloride or acrylic anhydride.Daiamid macromole reaction kinetic formula is as follows:
With the macromolecular functionalization skeleton of above-mentioned daiamid monomer brief note be: C
127H
202O
46N
36
Described hydrophobic monomer is dimethyl-allyl-N-alkyl ammomium chloride, and its molecular structure is as follows:
A kind of Shearing Resistant Polymer of the present invention is acrylamide (C
3H
5ON), sodium acrylate (C
3H
3O
2Na), hydrophobic monomer dimethyl-allyl-N-alkyl ammomium chloride (C
n+5H
2n+12NCl) and functionalization skeleton monomer (C
12/H
202O
46N
36) multipolymer, structural formula is as follows:
Wherein n is 14～18, structural unit percentage ratio * and be that 45%～75%, y is that 20%～50%, z is 1%～4%.The molecular-weight average of this multipolymer is 6,000,000.
A kind of preparation method of Shearing Resistant Polymer comprises the following steps successively:
(1) take daiamid macromolecular skeleton monomer 3.25 grams and MALEIC ANHYDRIDE 2 grams (perhaps acrylate chloride, acrylic anhydride) join respectively in different beakers, then add respectively the methyl-sulphoxide of 20 grams and 10 grams to carry out stirring and dissolving even, the dimethyl sulfoxide solution of skeleton monomer slowly is added drop-wise in the dimethyl sulfoxide solution of MALEIC ANHYDRIDE, logical nitrogen in the dropping process, and system is placed in the cryosel bath, with pH value monitoring reaction process, when reacting liquid pH value is 4～5, stop dripping the skeleton monomer solution, till continuing to be stirred to reaction solution system temperature and no longer raising, obtain functionalization skeleton monomer with the chloroform repeated precipitation.
(2) acrylamide, vinylformic acid, hydrophobic monomer and functionalization skeleton monomer are carried out the free yl solution polymerization reaction, each constituent mass per-cent is: acrylamide 50.1-78.9%, vinylformic acid 20.0-44.8%, hydrophobic monomer 1.0-5.09% and functionalization skeleton monomer 0.009-0.30%, join it in reaction vessel, and to be made into the monomer total mass concentration be 28% the aqueous solution, uses Na
2CO
3, NaHCO
3, the alkaline matters such as NaOH, KOH adjust to 6-7 with pH value of solution, add solubility promoter, chain-transfer agent and redox initiator after passing into nitrogen deoxygenation 30min, in 15-45 ℃ of water bath with thermostatic control placing response 4-8 hour, make Shearing Resistant Polymer of the present invention.
The described solubility promoter of preparation method's step of the present invention (2) is urea, thiocarbamide or small molecules sodium salt, can promote the dissolving of the materials such as hydrophobic monomer, and its consumption is 0.5～3% of monomer total mass; Described chain-transfer agent is sodium methylate, Virahol, methylamine or N, and N '-Tetramethyl Ethylene Diamine, its consumption are 0.015～0.4% of monomer total mass, can regulate Polymer Molecular Weight; The oxygenant of described redox initiator is Potassium Persulphate, ammonium persulphate, Sodium Persulfate or hydrogen peroxide, and reductive agent is S-WAT or sodium bisulfite, and its dosage is the 0.003-0.1% of monomer total mass.
Compared with prior art, the Shearing Resistant Polymer that synthesizes of the present invention has following characteristics:
(1) Shearing Resistant Polymer of the present invention has higher tackifying ability, and good solubility and heat-resistant salt-resistant ability, has good injectability and mobility control ability in porous medium.
(2) the present invention adopts the skeleton monomer with degree of branching, has strengthened the chain rigidity of polymkeric substance, has improved the anti-shear ability of polymkeric substance.
(3) cation hydrophobic monomer of the present invention's employing, be connected with main polymer chain, forms the flexible molecule with hydrophobic association effect at solution, greatly improved the tackifying ability of rigid polymer, and heatproof and saline-alkaline tolerance.
(4) Shearing Resistant Polymer of preparation shows higher tackifying ability under the high salinity condition, as being in the 10069.8mg/L aqueous solution in total mineralization, and CaCl
2Mass concentration 1579.0mg/L, MgCl
2Mass concentration 1626.9mg/L, mass concentration is that the polymers soln apparent viscosity of 1750mg/L reaches 176mPas, after shearing through 1 grade of 20S of WARNlG agitator, soltion viscosity is 128mPas, shows good anti-shear performance and anti-calcium, magnesium ion ability.
(5) Shearing Resistant Polymer of preparation can be used as high temperature, high salinity reservoirs was polymer oil-displacing agent; It sets up higher residual resistance factor ability, can be as adjusting the high auxiliary agent that the oil field flood effectiveness is used that permeates.
(6) easy and simple to handle, the mild condition of preparation method.
Description of drawings
Fig. 1 is different Shearing Resistant Polymer soltion viscosity and the relation curve of concentration.
Fig. 2 is the relation curve of Shearing Resistant Polymer HPED04 solution (concentration is 1750mg/L) viscosity and temperature.
Fig. 3 is the relation curve of Shearing Resistant Polymer HPED04 solution (concentration is 1750mg/L) viscosity and salinity.
Fig. 4 is the flow curve of Shearing Resistant Polymer HPED04 solution (concentration is 1750mg/L).
Fig. 5 is Shearing Resistant Polymer HPED04 solution (concentration is 1750mg/L) is percolation flow curve in the porous medium of 2196mD in rate of permeation.
Embodiment
Further illustrate the present invention below by embodiment.
One, the preparation of Shearing Resistant Polymer
Embodiment 1
Take skeleton monomer 3.25 grams and MALEIC ANHYDRIDE 2 grams join respectively in different beakers, then add respectively the methyl-sulphoxide of 20 grams and 10 grams to carry out stirring and dissolving even, the dimethyl sulfoxide solution of skeleton monomer slowly is added drop-wise in the dimethyl sulfoxide solution of MALEIC ANHYDRIDE, logical nitrogen in the dropping process, and system is placed in the cryosel bath, with pH value monitoring reaction process, when reacting liquid pH value is 4～5, stop dripping the skeleton monomer solution, till continuing to be stirred to reaction solution system temperature and no longer raising, obtain functionalization skeleton monomer with the chloroform repeated precipitation.
take acrylamide (AM) 20 grams, vinylformic acid (AA) 6 grams, functionalization skeleton monomer 0.0026 gram, 0.0052 gram, 0.013 gram, 0.026 gram, 0.052 gram, 0.078 gram, dimethyl-allyl octadecyl ammonium chloride 0.4 gram, distilled water 74 grams, join respectively in beaker, stir and be uniformly dissolved, sodium hydroxide arrives 6-7 with pH regulator, preheating is after 30 minutes in temperature is 40 ℃ of water-baths, add each 0.26 gram of solubility promoter urea and sodium sulfate, chain-transfer agent sodium methylate 0.052 gram, each 4.8 milligrams of redox initiator sodium bisulfite and ammonium persulphates, reacted 6 hours, obtain to be numbered respectively HPED01, HPED02, HPED03, HPED04, HPED05, six kinds of frozen glue shaped polymers of HPED06.
Embodiment 2
As embodiment 1 preparation functionalization skeleton monomer.
take acrylamide (AM) 20 grams, vinylformic acid (AA) 6 grams, functionalization skeleton monomer 0.026 gram, dimethyl-allyl octadecyl ammonium chloride 0.4 gram, 0.8 gram, 1.2 gram, distilled water 74 grams, join respectively in beaker, stir and be uniformly dissolved, with sodium hydroxide, pH regulator is arrived 6-7, preheating is after 30 minutes in temperature is 40 ℃ of water-baths, add each 0.26 gram of solubility promoter urea and sodium sulfate, chain-transfer agent sodium methylate 0.052 gram, each 4.8 milligrams of redox initiator sodium bisulfite and ammonium persulphates, reacted 6 hours, obtain three kinds of frozen glue shaped polymers.
Two, the performance test of Shearing Resistant Polymer
Getting a certain amount of HPED01～HPED06, under 40 ℃ of water bath condition, is that (ion forms (mg/L of unit) to 9374.12mg/L simulated injection water: Na with salinity
++ K
+3091.96, Ca
2+276.17, Mg
2+158.68, CO
3 2-14.21, HCO
3 -311.48, SO
4 2-85.29, Cl
-5436.34), be mixed with the solution that concentration is 5000mg/L, place Brown Glass Brown glass bottles and jars only interior after standing 12 hours; Be diluted to aimed concn, stirred in rear placement Brown Glass Brown glass bottles and jars only standing 8 hours, as displacement of reservoir oil Shearing Resistant Polymer solution.The sticking dense relation of HPED01～HPED06 is seen Fig. 1.
Getting aimed concn is the HPED04 polymers soln of 1750mg/L, shears 20s with 1 grade, WARlNG agitator, measures its apparent viscosity before and after polymer solution shear under condition of different temperatures, sees Fig. 2.Be under the condition of 65 ℃ in temperature, measure its flow curve, see Fig. 3.Measure its sticking dense relation under different salinity (10000mg/L sodium-chlor, 8000mg/L sodium-chlor+2000mg/L calcium chloride and 8000mg/L sodium-chlor+1684.6mg/L magnesium chloride), see Fig. 4.
Get a certain amount of HPED04, be mixed with the solution of 5000mg/L with simulated injection water, be diluted to simulated injection water the solution that concentration is 1750mg/L again, with 1.0ml/min speed, polymers soln is injected into long 50.0cm in 65 ℃ of thermostat containers, in sand-packed model with pressure tap in the middle of diameter 0.8cm, the injection of polymers soln when the investigation rate of permeation is 2196mD, and the ability of setting up resistance coefficient and residual resistance factor are seen Fig. 5.Experimental result shows, the HPED04 solution of 1750mg/L shows good injection in than most permeable medium, the resistance coefficient of setting up in porous medium is 174.6, residual resistance factor is 47.2, and it has good mobility control ability and reduces water phase permeability in most permeable medium ability is described.
Claims (3)
1. a Shearing Resistant Polymer, be acrylamide C
3H
5ON, sodium acrylate C
3H
3O
2Na, dimethyl-allyl-N-alkyl ammomium chloride C
n+5H
2n+12NCl and functionalization skeleton monomer C
127H
202O
46N
36Multipolymer, structural formula is as follows:
Wherein n is that 14～18, x is that 45%～75%, y is that 20%～50%, z is 1%～4%;
Described functionalization skeleton monomer is that polyamide-amide macromolecular skeleton monomer and MALEIC ANHYDRIDE are reacted in dimethyl sulfoxide solution and form, and its structural formula is as follows:
2. the preparation method of Shearing Resistant Polymer as claimed in claim 1 comprises the following steps successively:
(1) polyamide-amide macromolecular skeleton monomer 3.25 grams and MALEIC ANHYDRIDE 2 grams are dissolved in respectively in the methyl-sulphoxide of 20 grams and 10 grams, the skeleton monomer solution slowly is added drop-wise in the maleic acid anhydride solution, logical nitrogen in the dropping process, and system is placed in the cryosel bath, when reacting liquid pH value is 4～5, stop dripping, till continuing to be stirred to reaction solution system temperature and no longer raising, obtain functionalization skeleton monomer with the chloroform repeated precipitation;
(2) with acrylamide, vinylformic acid, dimethyl-allyl-N-alkyl ammomium chloride and functionalization skeleton monomer carry out the free yl solution polymerization reaction, each constituent mass per-cent is: acrylamide 50.1-78.9%, vinylformic acid 20.0-44.8%, dimethyl-allyl-N-alkyl ammomium chloride 1.0-5.09% and functionalization skeleton monomer 0.009-0.30%, join it in reaction vessel, and to be made into the monomer total mass concentration be 28% the aqueous solution, pH value of solution is adjusted to 6-7, add solubility promoter after passing into nitrogen deoxygenation 30min, chain-transfer agent and oxidation-reduction initiator, in 15-45 ℃ of water bath with thermostatic control placing response 4-8 hour, make Shearing Resistant Polymer.
3. preparation method as claimed in claim 2, it is characterized in that, described solubility promoter is urea, thiocarbamide or small molecules sodium salt, described chain-transfer agent is sodium methylate, Virahol, methylamine or N, N '-Tetramethyl Ethylene Diamine, the oxygenant of described oxidation-reduction initiator is Potassium Persulphate, ammonium persulphate, Sodium Persulfate or hydrogen peroxide, and reductive agent is S-WAT or sodium bisulfite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210117149 CN102633955B (en) | 2012-04-19 | 2012-04-19 | Anti-shearing polymer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210117149 CN102633955B (en) | 2012-04-19 | 2012-04-19 | Anti-shearing polymer and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102633955A CN102633955A (en) | 2012-08-15 |
| CN102633955B true CN102633955B (en) | 2013-06-19 |
Family
ID=46618541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210117149 Expired - Fee Related CN102633955B (en) | 2012-04-19 | 2012-04-19 | Anti-shearing polymer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102633955B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965094B (en) * | 2012-11-18 | 2015-04-22 | 西南石油大学 | Dendronized polymer/SiO2 nano oil-displacing agent and method for preparing same |
| CN103130967A (en) * | 2013-02-28 | 2013-06-05 | 西南石油大学 | Hyperbranched hydrophobical-associating water-soluble polymer and its preparation method |
| CN103555305B (en) * | 2013-10-31 | 2014-08-13 | 西南石油大学 | Hyperbranched slow-swelling profile control particles and preparation method thereof |
| CN103694982B (en) * | 2013-12-25 | 2016-03-16 | 四川宝麟新材料科技有限公司 | A kind of surface-active polymer oil-displacing agent and preparation method thereof |
| CN103849367B (en) * | 2014-03-20 | 2016-09-28 | 西南石油大学 | A kind of cladodification hydrophobic associated polymer oil displacement agent and preparation method thereof |
| CN104311755A (en) * | 2014-10-30 | 2015-01-28 | 孙安顺 | Salt-resistant polymer for oil displacement of oil field and preparation method thereof |
| CN104777272B (en) * | 2015-04-20 | 2017-03-01 | 西南石油大学 | For measuring the secondary shear method of Polymer Used For Oil Displacement solution property parameter |
| CN106520085B (en) * | 2016-11-03 | 2018-06-26 | 中国石油大学(华东) | A kind of dendritic polyether shale inhibitor and preparation method and application |
| CN108822252B (en) * | 2018-07-05 | 2020-07-14 | 北京百特泰科能源工程技术有限公司 | Amphiphilic high-molecular thickened oil activator and application thereof |
| JP7215955B2 (en) * | 2019-04-16 | 2023-01-31 | 住友化学株式会社 | Porous layer for non-aqueous electrolyte secondary battery |
| CN115505383A (en) * | 2022-09-20 | 2022-12-23 | 四川轻化工大学 | Water-soluble dendritic amphiphilic polymer oil displacement agent and synthesis method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389136C (en) * | 2005-07-01 | 2008-05-21 | 中国科学院化学研究所 | Hydrophobically associating polyacrylamide and its preparing method |
-
2012
- 2012-04-19 CN CN 201210117149 patent/CN102633955B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102633955A (en) | 2012-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102633955B (en) | Anti-shearing polymer and preparation method thereof | |
| CN103130967A (en) | Hyperbranched hydrophobical-associating water-soluble polymer and its preparation method | |
| Kang et al. | Advances in enhanced oil recovery technologies for low permeability reservoirs | |
| CN103849367A (en) | Branched hydrophobic associated polymer oil-displacing agent and preparation method thereof | |
| CN102031101B (en) | Heat-resistant and salt-resistant polymer thickening agent and preparation method thereof | |
| CN101798503B (en) | Novel polymeric oil-displacing agent for improving recovery ratio and application thereof | |
| CN101463116B (en) | Non-linear associating water-soluble quadripolymer, and preparation and use thereof | |
| CN103865008B (en) | Polyamide-amide hybridized nanometer silica dissaving polymer and preparation method thereof | |
| CN102304200B (en) | Crosslinked polymer microspheres and preparation method thereof | |
| CN103242818B (en) | AM (acrylamide)/NaAA (sodium acrylic acid)/AMPL (N-allyl morpholinium) ternary copolymer oil displacement agent and synthesis method thereof | |
| CN102464976B (en) | Oil-displacing composition and preparation method thereof | |
| AU2018238041A1 (en) | Fracturing fluid comprising a (co)polymer of a hydrated crystalline form of 2-acrylamido-2-methylpropane sulphonic acid and hydraulic fracturing method | |
| CN102051165B (en) | Xanthan gum graft copolymer oil displacement agent as well as preparation method and application thereof | |
| CN103059217B (en) | Temperature and salt resistant hydrophobic association polymer oil displacement agent and its preparation method | |
| CN102070754A (en) | Novel anionic thermal tackifying water-soluble polymer | |
| CN102372807B (en) | Preparation method of heat-resistance and salt-tolerance anionic polyacrylamide for oil displacement | |
| CN104877079A (en) | Water-soluble hyperbranched multi-arm polyacrylamide polymer and preparation method thereof | |
| CN104610489A (en) | Resistance reducing agent used for fracturing, and preparation method thereof | |
| CN102965094B (en) | Dendronized polymer/SiO2 nano oil-displacing agent and method for preparing same | |
| CN102898590A (en) | Twin-tailed hydrophobically associating polymer oil-displacement agent containing beta-cyclodextrin and synthetic method thereof | |
| CN103254887A (en) | Anti-drag aqueous fracturing fluid preparation | |
| CN106749887A (en) | A kind of preparation method of temperature-resistant and anti-salt type hydrophobic associated polymer | |
| CN111518239A (en) | Emulsion type fracturing fluid resistance reducing agent and preparation method thereof | |
| CN104672408A (en) | Rigid-core-shell-structure water-soluble oil-displacing polymer and preparation method thereof | |
| CN102452950B (en) | Amphiphilic polymerizable monomer and amphiphilic tackifying copolymer, and preparation methods and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140419 |