CN104099069B - Anti-temperature clay anti-swelling agent and preparation method thereof - Google Patents

Anti-temperature clay anti-swelling agent and preparation method thereof Download PDF

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CN104099069B
CN104099069B CN201310126366.9A CN201310126366A CN104099069B CN 104099069 B CN104099069 B CN 104099069B CN 201310126366 A CN201310126366 A CN 201310126366A CN 104099069 B CN104099069 B CN 104099069B
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catalyst
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polyether polyol
product
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CN104099069A (en
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袁俊秀
王康
黄冬
逯贵广
徐冬梅
封心领
曾志强
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China Petroleum and Chemical Corp
Research Institute of Sinopec Nanjing Chemical Industry Co Ltd
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Research Institute of Nanjing Chemical Industry Group Co Ltd
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/035—Organic additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/321—Polymers modified by chemical after-treatment with inorganic compounds
    • C08G65/325—Polymers modified by chemical after-treatment with inorganic compounds containing nitrogen
    • C08G65/3255—Ammonia
    • C—CHEMISTRY; METALLURGY
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    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
    • C08G65/33303—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group
    • C08G65/33306—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group acyclic
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/32—Polymers modified by chemical after-treatment
    • C08G65/329—Polymers modified by chemical after-treatment with organic compounds
    • C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
    • C08G65/33303—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing amino group
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    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/607—Compositions for stimulating production by acting on the underground formation specially adapted for clay formations
    • C09K8/608—Polymer compositions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G2650/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterized by the type of post-polymerisation functionalisation
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Abstract

The invention belongs to the technical field of oil production engineering and provides an anti-temperature clay anti-swelling agent and a preparation method thereof. The anti-swelling agent is a polyamine-type substance with a number-average molecular weight being less than 5000. The polyamine-type substance is prepared by a catalytically reductive amination technology with a polyether polyol being a raw material in the presence of hydrogen, an amination agent and a catalyst. The preparation method is characterized by including following steps: a) selecting special-use skeletal nickel as the catalyst, wherein the skeletal nickel comprises, by mass, 80-95% of nickel metal, 5-20% of aluminum metal and 0.5-5% of one, two or three of chromium, iron, copper or zinc; b) carrying out a catalytically reductive amination reaction with a reaction temperature being 120-260 DEG C, a reaction pressure being 5.0-35.0 MPa and a reaction time being 1.5-10 h; and c) cooling the reaction liquid in the step b) to 25-60 DEG C, discharging non-reacted gas, performing a material discharging process, and performing a reduced pressure distillation process to a reaction product for removing moisture, the amination agent and other low-boiling-point by-products to obtain a product of the anti-swelling agent. The method is good in selectivity, is high in conversion ratio, is low in environmental pollution and is convenient to post-process.

Description

A kind of temperature resistance type anti-clayswelling agent and its preparation technology
Technical field
The invention belongs to technical field of oil production engineering, it is related to a kind of temperature resistance type anti-clayswelling agent and its preparation technology.
Background technology
Clay mineral is widely present in oil reservoir, and the oil reservoir in the whole world 97% all contains clay mineral to some extent.Logical Often when oil reservoir argillaceous 5%～20% then it is assumed that its oil reservoir that to be clay content higher.If measure is not on stream When, will result in swelling clay mineral, dispersion and migration, thus blocking the throat of formation pore structure, the infiltration on reduction stratum Property, produce formation damage.In order to protect the permeability of hydrocarbon formations it is necessary to use the clay pit in chemical treatments good ground Thing.The inorganic agent that swelling clay mineral can be prevented is referred to as anti-soil adhesion extender (expansion-resisting agent).The place of small bits of clay migration can be prevented Reason agent is referred to as anti-soil adhesion fine migration agent (anti-migration agent), both belongs to clay stabilizer.
Clay stabilizer according to the difference of different structures and the chemical drugss being used, substantially may be used by development in this respect To be divided into three phases：1. the later stage fifties to the sixties, mainly stablize clay with inorganic salts；2. the seventies is with inorganic many Nuclear polymer and cationic surfactant are stablizing clay；3. mainly carried out after the eighties and used cationic organic polymer Stablize research and the experiment of clay.
Inorganic salt is non-permanent clay stabilizing chemical, and in oil recovery process, the sodium ion in the water of stratum will replace this again A little ions, the effect stablizing clay when its concentration reduces to a certain extent will disappear.This kind of clay stabilizer can not produce Multipoint adsorption, therefore to preventing clay movement DeGrain, is used primarily in the operations such as drilling well, pressure break, acidifying.
The again application inorganic cationic polymer clay stabilizer such as hydroxy Al, iron carbonyl, zirconyl hydroxy after inorganic salt, The mechanism of its stable clay is the metal ion of more than trivalent and trivalent (as A13+、Cr3+、Zr3+、Zr4+、Ti4+Deng) in certain bar Polynuclear hydroxy bridge complex ion is dissociateed, this complex ion has very high positive electricity price and structure is similar to clay under part, can be closely Absorption, on surface of clay, reduces the elecrtonegativity of surface of clay, migrates with efficiently controlling clay swell and microgranule, can process big The reservoir of area.The effect duration that inorganic cationic polymer stablizes clay is longer than inorganic salt, but acid resistance difference is it is impossible to be used for carbonic acid The high sandstone formation of salt content.Best inorganic cationic polymer is hydroxy Al and zirconyl hydroxy.
Cationic surfactant, due to can dissociate the cation of surface activity in water, can adsorb in clay On the surface of grain, the negative charge of neutralization surface of clay, so can be used as expansion-resisting agent.But cationic surfactant makees anti-clayswelling Easily generation precipitation is reacted with other anion chemical agents during agent.In addition, its maximum shortcoming is the wettability making reservoir becoming For oil-wet, the relative permeability of water is led to decline.
Organic cationic polymer is the polymer of nitrogenous, sulfur and phosphorus.More is polyquaternary amine salts substances, and it is in water Middle dissociation produces the macromolecule cation of high positive electricity price, can form multipoint adsorption with multiple clay particles simultaneously, after absorption, The surface of clay particle forms one layer of absorption protecting film, prevents expansion and the migration of clay particle.But such material is due to dividing Son amount is larger, easily produces blocking, polyquaternary amine salts substances simultaneously to the pore constriction of low permeability formation, has certain toxicity, Certain pollution can be caused using to environment.
Content of the invention
The present invention provides a kind of temperature resistance type anti-clayswelling agent and its preparation technology.
The purpose of the present invention is achieved through the following technical solutions：
Temperature resistance type anti-clayswelling agent it is characterised in that this expansion-resisting agent is number-average molecular weight be less than 5000 poly- amine substance, Has following general structure a) or b) or c)：
a)
（1）
R1、R2And R3It is independently selectable to comprise side chain or straight-chain aliphatic C2~C4Group;m:0~80；n:0 ~ 80, m +n:2~80；R4And R5It is identical or different and be hydrogen or the aliphatic organic radical with 1 to 6 carbon atom.
b)
（2）
R1、R2It is independently selectable to comprise side chain or straight-chain aliphatic C2~C4Group; m:0~20；n: 0~20.
c)
R2、R3It is independently selectable to comprise side chain or straight-chain aliphatic C2~C4Group；m:0~25；n:0 ~ 25, m+n:2 ~25；R1、R4And R5It is identical or different and be hydrogen or the aliphatic organic radical with 1 to 6 carbon atom.
The preparation of temperature resistance type anti-clayswelling agent of the present invention, is with polyether polyol as raw material, in hydrogen, aminating agent and catalysis In the presence of agent, obtained by being catalyzed reduction amination preparation technology, its feature includes following step：
a）From special skeletal nickel catalyst, its mass percent consists of：80～95% metallic nickels, 5～20% metals Aluminum, one of 0.5～5% chromium, ferrum, copper or zinc, two or three, catalyst seal is saved backup；
B) adopt the catalyst described in step a) in the reactor, carry out being catalyzed reductive amination process, raw materials used be Polyether polyol below 5000 for the number-average molecular weight, catalyst charge is the 2 ~ 15% of raw material polyether polyol quality, aminating agent Addition is 1.5 ~ 20 times of raw material polyether polyol hydroxyl moles, and added hydrogen is raw material polyether polyols alcoholic extract hydroxyl group mole 0.4 ~ 15 times of number, reaction temperature is 120 ~ 260 DEG C, and reaction pressure is 5.0 ~ 35.0MPa, and the response time is 1.5 ~ 10h；
C) by step b）Middle reactant liquor cools to 25 ~ 60 DEG C, excludes unreacted gas, discharging, product warp Vacuum distillation is sloughed moisture, aminating agent and other low-boiling by-products and is obtained final product expansion-resisting agent product.
The production technology of above-mentioned expansion-resisting agent, prepared expansion-resisting agent
The production technology of above-mentioned expansion-resisting agent, described raw material polyether polyol has following general structure a）Or b）：
a）
Wherein R1、R2And R3It is independently selectable to comprise side chain or straight-chain aliphatic C2~C4Group；m：0~80；n：0~ 80；m+n：2~80；
b)
Wherein R is hydrogen or the aliphatic organic radical with 1 to 6 carbon atom, R2And R3It is independently selectable comprise Chain or straight-chain aliphatic C2~C4Group；m：0~25；n：0~25；m+n：2~25.
The production technology of above-mentioned expansion-resisting agent, described aminating agent can for ammonia, methylamine, dimethylamine, ethamine, diethylamine, positive third Amine, di-n-propylamine, 2-aminopropane., diisopropylamine, hexylamine or cyclohexylamine.
The production technology of above-mentioned expansion-resisting agent, vacuum distillation temperature controls at 100～120 DEG C, and vacuum degree control is -0.08 ～-0.1MPa, sloughs moisture, aminating agent and other low-boiling by-products.
In present invention process, skeletal nickel catalyst and aminating agent are all circulated after treatment and apply mechanically, whole preparation technology Route selection is good, high conversion rate, environmental pollution are few, convenient post-treatment.
Specific embodiment
The technique present invention being described with reference to embodiment.
Embodiment 1
In 0.5L autoclave, addition 100g number-average molecular weight 240 degree of functionality is 2 terminal hydroxy group polyethenoxy ether, three First skeletal nickel catalyst 10g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, in stirring downhill reaction kettle Inside pour ammonia and be about 43.2L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 4.0MPa, be flushed with hydrogen gas into reactor extremely Pressure balance, heat temperature raising, controlling reaction temperature is 190 DEG C, and the response time is 8h.Reaction leads to cooling water to reactor after terminating Temperature is 50 DEG C, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 105 DEG C, and vacuum is -0.08MPa, and distillation time is 2h, obtains final product expansion-resisting agent amine product 1#.
Embodiment 2
In 0.5L autoclave, addition 100g number-average molecular weight 400 degree of functionality is 2 terminal hydroxy group polyethenoxy ether, four First skeletal nickel catalyst 5g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, in stirring downhill reaction kettle Inside pour ammonia and be about 43.2L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 4.0MPa, be flushed with hydrogen gas into reactor extremely Pressure balance, heat temperature raising, controlling reaction temperature is 220 DEG C, and the response time is 6h.Reaction leads to cooling water to reactor after terminating Temperature is 50 DEG C, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 120 DEG C, and vacuum is -0.09MPa, and distillation time is 1h, obtains final product expansion-resisting agent amine product 2#.
Embodiment 3
The terminal hydroxy group polyethenoxy ether that 100g number-average molecular weight 983.0 degree of functionality is 2 is added in 0.5L autoclave, Quaternary skeletal nickel catalyst 3g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, in stirring downhill reaction Pour ammonia in kettle and be about 28.6L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 2.5MPa, into reactor, be flushed with hydrogen gas To pressure balance, heat temperature raising, controlling reaction temperature is 200 DEG C, and the response time is 4h.Reaction logical cooling water extremely reaction after terminating Kettle temperature degree is 60 DEG C, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 105 DEG C, and vacuum is -0.08MPa, and distillation time is 1h, obtains final product expansion-resisting agent amine product 3#.
Embodiment 4
The terminal hydroxy group polyoxyethylene ether that 100g number-average molecular weight 2000 degree of functionality is 2 is added in 0.5L autoclave, Quaternary frame special Raney nickel 3g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, under stirring to Pour ammonia in reactor and be about 30.0L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 2.5MPa, fill into reactor To pressure balance, heat temperature raising, controlling reaction temperature is 200 DEG C to hydrogen, and the response time is 2h.Reaction leads to cooling water extremely after terminating Temperature of reaction kettle is 50 DEG C, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 105 DEG C, and vacuum is -0.08MPa, and distillation time is 2h, obtains final product expansion-resisting agent amine product 4#.
Embodiment 5
The terminal hydroxy group polyethenoxy ether that 100g number-average molecular weight 983.0 degree of functionality is 2 is added in 0.5L autoclave, Quaternary frame special Raney nickel 4g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, under stirring to Pour ammonia in reactor and be about 43.0L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 2.5MPa, fill into reactor To pressure balance, heat temperature raising, controlling reaction temperature is 200 DEG C to hydrogen, and the response time is 4h.Reaction leads to cooling water extremely after terminating Temperature of reaction kettle is 60 DEG C, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 105 DEG C, and vacuum is -0.08MPa, and distillation time is 2h, obtains final product expansion-resisting agent amine product 5#.
Embodiment 6
In 0.5L autoclave add 100g number-average molecular weight 1000 degree of functionality be 2 terminal hydroxy group polyoxyethylene, third Alkene is blended ether, quaternary skeletal nickel catalyst 5.0g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, in stirring shape Pour ammonia in state downhill reaction kettle and be about 28.2L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 3.5MPa, to reaction It is flushed with hydrogen gas to pressure balance, heat temperature raising, controlling reaction temperature is 200 DEG C, the response time is 2h in kettle.Reaction is logical cold after terminating But water is 60 DEG C to temperature of reaction kettle, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 105 DEG C, and vacuum is -0.08MPa, and distillation time is 1h, obtains final product expansion-resisting agent amine product 6#.
Embodiment 7
The terminal hydroxy group polyoxyethylene that 100g number-average molecular weight 5000.0 degree of functionality is 3 is added in 0.5L autoclave Ether, quaternary frame special Raney nickel 5.0g.Use 0.4MPa nitrogen and hydrogen exchange reactor 2～3 times respectively, in stirring Pour ammonia in downhill reaction kettle and be about 10.2L（Under standard state）, adjust hydrogen gas cylinder outlet pressure 3.0MPa, to reactor Inside it is flushed with hydrogen gas to pressure balance, heat temperature raising, controlling reaction temperature is 200 DEG C, the response time is 3h.Reaction logical cooling after terminating Water is 60 DEG C to temperature of reaction kettle, slow aerofluxuss, and gas passes through two grades of water and absorbs, discharging.
By reacting liquor while hot filtration separation catalyst and product, product is carried out being transferred in there-necked flask Vacuum distillation, temperature is 105 DEG C, and vacuum is -0.08MPa, and distillation time is 2h, obtains final product expansion-resisting agent product 7#.
Embodiment 8
Accurately weigh respectively in above-mentioned 1 ~ 7 embodiment of 10.0 g sample, be accurate to 0.1 g, be dissolved in 990.0 g and steam In distilled water, it is accurate to 0.1 g, stirs 30 min, form homogeneous solution, put on 1 respectively#~7#, stand-by.
Embodiment 9
Evaluate SY/T6335-1997 according to China National Petroleum industry standard and carry out 1#~7#Sample dilatancy is tested.Institute It is NP-3 shale expansion tester with instrument.
Weigh two grades of bentonite that 8.00g dries 4h at 3 DEG C of 105 DEG C of scholars（A diameter of 0.15-0.044mm）, in pressure Made on the machine tabletting（Pressure 10MPa, time 5min）.Tabletting is put in shale expansion instrument, adds the finite concentration preparing Expansion-resisting agent solution（Joined solution in embodiment 8）, measure the expansion rate of mud shale tabletting after test solution soaks.Mud shale tabletting Expansion rate is less, illustrates that the ability of the suppression hydration and expansion of clay of product is stronger；Otherwise it is then poorer.Experimental result is as shown in table 1.
Table 1 linear expansion rate is tested
From table 1,7 kinds of expansion-resisting agent products of preparation can suppress the hydration swelling of clay effectively.
Embodiment 10
According to《SY/T5971-94 water filling clay stabilizer method of evaluating performance》Have rated the anti-dilative of product.
Take 0.50g bentonite in powder to be added in 10mL centrifuge tube, add 10mL expansion-resisting agent solution, fully shake up, in room temperature Under deposit 2h, under rotating speed is for 1500/min be centrifuged 15min.Read bentonite inflated volume V1.Replaced with 10mL clear water suppressing Agent solution measures swelling volume V in clear water for the bentonite2；Replace inhibitor solution to measure bentonite in kerosene with 10mL kerosene In swelling volume V0.
Anti-dilative（B）Computing formula：
Inhibitor solution used by this experiment is joined solution by embodiment 8, and result of the test is shown in Table 2.
Table 2 product anti-dilative is tested
The expansion-resisting agent that can be seen that present invention development from anti-dilative data all has a good anti-swollen performance, and wherein 1#With 7# Preventive effect of expansion is than more prominent.

Claims (5)

1. a kind of temperature resistance type anti-clayswelling agent it is characterised in that this expansion-resisting agent is number-average molecular weight be less than 5000 poly- amine Matter, has following general structure：
R2、R3It is independently selectable to comprise side chain or straight-chain aliphatic C2~C4Group；m:0~25；n:0 ~ 25, m+n:2~25； R1、R4And R5It is identical or different and be hydrogen or the aliphatic organic radical with 1 to 6 carbon atom.
2. temperature resistance type anti-clayswelling agent preparation technology according to claim 1, is characterized in that with polyether polyol as raw material, In the presence of hydrogen, aminating agent and catalyst, obtained by being catalyzed reduction amination preparation technology, comprise the following steps：
a）From special skeletal nickel catalyst, its mass percent consists of：80～95% metallic nickels, 5～20% metallic aluminiums, One of 0.5～5% chromium, ferrum, copper or zinc, two or three, each component percentages sum of above-mentioned skeletal nickel catalyst is 100%, catalyst seal is saved backup；
B) adopt the catalyst described in step a) in the reactor, carry out being catalyzed reductive amination process, raw materials used equal for number Polyether polyol below 5000 for the molecular weight, catalyst charge is the 2 ~ 15% of raw material polyether polyol quality, and aminating agent adds Measure 1.5 ~ 20 times for raw material polyether polyol hydroxyl moles, added hydrogen is raw material polyether polyol hydroxyl moles 0.4 ~ 15 times, reaction temperature is 120 ~ 260 DEG C, and reaction pressure is 5.0 ~ 35.0MPa, and the response time is 1.5 ~ 10h；
C) by step b）Middle reactant liquor cools to 25 ~ 60 DEG C, excludes unreacted gas, discharging, product is through decompression Distillation is sloughed moisture, aminating agent and other low-boiling by-products and is obtained final product expansion-resisting agent product.
3. temperature resistance type anti-clayswelling agent preparation technology according to claim 2, is characterized in that described raw material polyether polyol There is following general structure：
Wherein R is hydrogen or the aliphatic organic radical with 1 to 6 carbon atom, R2And R3Be independently selectable comprise side chain or Person straight-chain aliphatic C2~C4Group；m：0~25；n：0~25；m+n：2~25.
4. temperature resistance type anti-clayswelling agent preparation technology according to claim 2, is characterized in that described aminating agent is ammonia, first Amine, dimethylamine, ethamine, diethylamine, n-propylamine, di-n-propylamine, 2-aminopropane., diisopropylamine, hexylamine or cyclohexylamine.
5. temperature resistance type anti-clayswelling agent preparation technology according to claim 2, is characterized in that vacuum distillation temperature controls 100 ～120 DEG C, vacuum degree control, in -0.08～-0.1MPa, sloughs moisture, aminating agent and other low-boiling by-products.
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CN106432708B (en) * 2015-08-10 2018-05-25 中石化石油工程技术服务有限公司 A kind of multi-branch polyether amine and its preparation method and application
CN105754579A (en) * 2016-04-19 2016-07-13 中国石油大学(华东) Clay anti-swelling and swelling shrinkage agent and preparation method thereof

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