CN106833589A - A kind of preparation method of composite thick oil viscosity reducer - Google Patents
A kind of preparation method of composite thick oil viscosity reducer Download PDFInfo
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- CN106833589A CN106833589A CN201611265245.2A CN201611265245A CN106833589A CN 106833589 A CN106833589 A CN 106833589A CN 201611265245 A CN201611265245 A CN 201611265245A CN 106833589 A CN106833589 A CN 106833589A
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
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- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
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- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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Abstract
The invention discloses a kind of preparation method of composite thick oil viscosity reducer, belong to the technical field of heavy crude thinner.The present invention is by ethanol solution, acrylamide, acrylic acid etc. is mixed, it is subsequently added styrene, maleic anhydride and alumina, boosting, stirring, material is collected out after cooling, supernatant is obtained to its centrifugation, and freeze supernatant, crush, collect sieving particle, it is mixed with n-hexane and is placed in being shaken in ultrasonic oscillation device, it is subsequently added 3 aminopropyltriethoxywerene werenes, evaporated after concussion, composite thick oil viscosity reducer can be obtained, composite thick oil viscosity reducer preparation method obtained by the present invention is simple, viscosity reducing effect is good, it is nontoxic, and the scope of application is wide, oil phase viscosity can be reduced after demulsification, emulsification degree is controllable, do not influence to be demulsified and do not influence water quality, it is effectively improved exploitation and the transportation performance of viscous crude, increase substantially oil well output.
Description
Technical field
The invention discloses a kind of preparation method of composite thick oil viscosity reducer, belong to the technical field of heavy crude thinner.
Background technology
With deepening continuously for In Oil Field Exploration And Development, the proportion shared by viscous crude is increasing.Viscous crude is asphalitine and colloid
The crude oil that content is higher, viscosity is larger.Because the density of viscous crude is big, therefore is also heavy oil.Because the density of viscous crude is big, viscosity is high,
The characteristic of poor fluidity carrys out huge difficulty to exploitation and conveyer belt.Conventional at present mixes the methods such as heat, mixing light oil, it is therefore an objective to
Viscosity of thickened oil is reduced, increases fluid ability, improve the recovery ratio of viscous crude.However, washing oil resource is more and more in short supply, seek to mix it is dilute with
Outer viscosity reduction mode seems especially urgent.Reducing the viscosity of viscous crude contributes to exploitation reducig, conveying cost, increases economic efficiency.
In the viscous crude composition of China, colloid, the too high levels of asphalitine are the high-viscosity main causes of viscous crude.In viscous crude, colloid, drip
The aggregation of blue or green matter, causing the viscosity of viscous crude increases, if colloid, asphalitine effectively can scatter in oil, it becomes possible to significantly
Reduction viscosity of thickened oil.
Water-base viscosity-reducing agent is usually to be helped by host surfactant, assistant agent surfactant, fatty alcohol, inorganic base and salt etc.
The water soluble mixt of agent composition, can be used as the surfactant of heavy crude thinner mainly have nonionic surfactant, it is cloudy from
Sub- surfactant and amphoteric surfactant.Current most popular thinner, its key component be substantially by it is non-from
Sub- alkyl phenol ether surfactant or anion surfactant alkylbenzenesulfonate or petroleum sulfonate etc. are constituted, and this kind of table
Due to containing highly stable benzene ring structure in molecular structure, it has the disadvantage that toxicity is big, easily environment is polluted face activating agent；
Secondly as often containing inorganic alkali composition in now using thinner component so that most of thinner pH value meta-alkalescence, contain alkalescence
Although its reducing viscosity by emulsifying effect of the heavy crude thinner of material is fine, the shortcoming of maximum is precisely due to the oil-water emulsion for being formed
Excessively stablize and be unfavorable for later stage multi-purpose station breaking emulsion and dewatering, i.e., this kind of thinner is incompatible with demulsifier, and easily causes oil well pipe
Post and petroleum pipeline fouling, corrosion phenomenon are than more serious.
The content of the invention
The technical problems to be solved by the invention：Environment is polluted greatly, easily for the thinner toxicity for using at present,
Thinner containing alkaline matter is incompatible with demulsifier, easily causes oil well pipe and petroleum pipeline fouling, corrosion phenomenon compare
A kind of serious defect, there is provided preparation method of composite thick oil viscosity reducer, it is of the invention by ethanol solution, acrylamide, propylene
Acid etc. is mixed, and is subsequently added styrene, maleic anhydride and alumina, and material is collected out after boosting, stirring, cooling, to its from
The heart separates to obtain supernatant, and supernatant is freezed, and crushes, and collects sieving particle, it is mixed with n-hexane and is placed in ultrasonic wave
Shaken in oscillator, be subsequently added APTES, evaporated after concussion, you can obtain composite thick oil viscosity reducer,
Composite thick oil viscosity reducer preparation method obtained by the present invention is simple, and viscosity reducing effect is good, nontoxic, and the scope of application is wide, breaks
Oil phase viscosity can be reduced after breast, emulsification degree is controllable, not influence to be demulsified and do not influence water quality, be effectively improved opening for viscous crude
Adopt and transportation performance, increase substantially oil well output.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
（1）Count by weight, take 60~65 parts of mass fractions for 70% ethanol solution, 35~40 parts of acrylamides, 25~30 parts
Acrylic acid, 13~16 parts of 1.5mol/L sodium hydroxide solutions, 6~8 parts of 1- dodecyl imidazoles and 5~7 parts of potassium peroxydisulfates, are put into
In reactor, protected using nitrogen, design temperature is 40~50 DEG C, with 3~5h of 180r/min stirring reactions；
（2）After above-mentioned stirring reaction terminates, respectively to adding the styrene of the quality such as aforesaid propylene acid amides, above-mentioned in reactor
The maleic anhydride of acrylamide quality 30~40% and the alumina of aforesaid propylene acid amides 6~9%, using gaseous mixture by reactor
Gas is discharged, and boosts to 1.2~1.6MPa, and design temperature is 110~120 DEG C, and 4~6h is stirred with 300r/min；It is described mixed
It is in molar ratio 1 to close gas:1, ethene and propylene are mixed；
（3）After above-mentioned stirring terminates, room temperature is naturally cooled to, carry out discharging and collect out material, material will gone out and be put into centrifuge
In, 10~15min is centrifuged with 900r/min, supernatant is collected, supernatant is placed in -30~-20 DEG C of refrigerating chamber at freezing
6~7h of reason, frozen material is put into pulverizer and is crushed, and crosses 150 mesh sieves, collects sieving particle；
（4）In mass ratio 1:3~1:5, sieving particle and n-hexane are put into container, and container is placed in ultrasonic oscillation device
In, setpoint frequency is 1.6~2.1MHz, and temperature is 50~55 DEG C, shakes 30~35min, then to addition sieving particle in container
The APTES of quality 6~9%, continues to shake 2~3h, and the mixture in container then is put into rotation
N-hexane is removed in evaporator, residue is collected, you can composite thick oil viscosity reducer is obtained.
Application process of the invention is：By the composite thick oil viscosity reducer obtained by the present invention and water in mass ratio 1:100~5:
100 ratio is well mixed, and the thinner aqueous solution is obtained, and temperature is controlled for 20~90 DEG C, by viscous crude and thinner aqueous solution matter
Amount is than being 1:1~1:3, by under thinner aqueous solution injection well, stirred with mixing plant, after testing, institute of the present invention
The composite thick oil viscosity reducer for obtaining has good viscosity reducing effect, and up to more than 99%, demulsifier compatibility is 96~98% to viscosity break ratio,
Recovery ratio improves 20~30%.
Compared with other method, Advantageous Effects are the present invention：
（1）Composite thick oil viscosity reducer obtained by the present invention has good viscosity reducing effect, nontoxic, while raw material is easy to get, it is raw
It is easy to produce；
（2）Composite thick oil viscosity reducer consumption obtained by the present invention is few, and the scope of application is wide, emulsification degree it is controllable, do not influence demulsification and
Water quality is not influenceed, exploitation and the transportation performance of viscous crude is effectively improved, oil well output is increased substantially.
Specific embodiment
Count by weight, take 60~65 parts of mass fractions for 70% ethanol solution, 35~40 parts of acrylamides, 25~30
Part acrylic acid, 13~16 parts of 1.5mol/L sodium hydroxide solutions, 6~8 parts of 1- dodecyl imidazoles and 5~7 parts of potassium peroxydisulfates, put
Enter in reactor, protected using nitrogen, design temperature is 40~50 DEG C, with 3~5h of 180r/min stirring reactions；In above-mentioned stirring
After reaction terminates, respectively to added in reactor the styrene of the quality such as aforesaid propylene acid amides, aforesaid propylene acid amides quality 30~
40% maleic anhydride and the alumina of aforesaid propylene acid amides 6~9%, are discharged the gas in reactor using gaseous mixture, and boost
To 1.2~1.6MPa, design temperature is 110~120 DEG C, and 4~6h is stirred with 300r/min；The gaseous mixture is in molar ratio 1:
1, ethene and propylene are mixed；After above-mentioned stirring terminates, room temperature is naturally cooled to, carry out discharging and collect out material, will
Go out material to be put into centrifuge, 10~15min is centrifuged with 900r/min, collect supernatant, supernatant is placed in -30~-20 DEG C
Refrigerating chamber in 6~7h of freezing processing, frozen material is put into pulverizer and is crushed, cross 150 mesh sieves, collect sieving particle；
In mass ratio 1:3~1:5, sieving particle and n-hexane are put into container, and container is placed in ultrasonic oscillation device, set
Frequency be 1.6~2.1MHz, temperature be 50~55 DEG C, shake 30~35min, then in container add sieving granular mass 6~
9% APTES, continues to shake 2~3h, and then the mixture in container is put into rotary evaporator
Removal n-hexane, collects residue, you can obtain composite thick oil viscosity reducer.
Example 1
Count by weight, take 60 parts of mass fractions for 70% ethanol solution, 35 parts of acrylamides, 25 parts of acrylic acid, 13 parts
1.5mol/L sodium hydroxide solutions, 6 parts of 1- dodecyl imidazoles and 5 parts of potassium peroxydisulfates, are put into reactor, are protected using nitrogen
Shield, design temperature is 40 DEG C, with 180r/min stirring reactions 3h；After above-mentioned stirring reaction terminates, add in reactor respectively
Enter styrene, the maleic anhydride of aforesaid propylene acid amides quality 30% and the aforesaid propylene acid amides 6% of the quality such as aforesaid propylene acid amides
Alumina, is discharged the gas in reactor using gaseous mixture, and boosts to 1.2MPa, and design temperature is 110 DEG C, with 300r/min
Stirring 4h；The gaseous mixture is in molar ratio 1:1, ethene and propylene are mixed；After above-mentioned stirring terminates, natural cooling
To room temperature, carry out discharging and collect out material, material will be gone out and be put into centrifuge, 10min is centrifuged with 900r/min, collect supernatant
Liquid, supernatant is placed in freezing processing 6h in -30 DEG C of refrigerating chamber, frozen material is put into pulverizer and is crushed, and crosses 150 mesh
Sieve, collects sieving particle；In mass ratio 1:3, sieving particle and n-hexane are put into container, and container is placed in ultrasonic wave shake
Swing in device, setpoint frequency is 1.6MHz, temperature is 50 DEG C, shake 30min, then to the 3- of addition sieving granular mass 6% in container
Aminopropyltriethoxywerene werene, continue shake 2h, then the mixture in container is put into rotary evaporator remove just oneself
Alkane, collects residue, you can obtain composite thick oil viscosity reducer.
By the composite thick oil viscosity reducer obtained by the present invention and water in mass ratio 1:100 ratio is well mixed, and viscosity reduction is obtained
The agent aqueous solution, controls temperature for 20 DEG C, is 1 by viscous crude and thinner aqueous solution mass ratio:1, by thinner aqueous solution injection well
Under, stirred with mixing plant, after testing, there is the composite thick oil viscosity reducer obtained by the present invention good viscosity reduction to imitate
Really, viscosity break ratio is 99%, and demulsifier compatibility is 96%, and recovery ratio improves 20%.
Example 2
Count by weight, take 65 parts of mass fractions for 70% ethanol solution, 40 parts of acrylamides, 30 parts of acrylic acid, 16 parts
1.5mol/L sodium hydroxide solutions, 8 parts of 1- dodecyl imidazoles and 7 parts of potassium peroxydisulfates, are put into reactor, are protected using nitrogen
Shield, design temperature is 50 DEG C, with 180r/min stirring reactions 5h；After above-mentioned stirring reaction terminates, add in reactor respectively
Enter styrene, the maleic anhydride of aforesaid propylene acid amides quality 40% and the aforesaid propylene acid amides 9% of the quality such as aforesaid propylene acid amides
Alumina, is discharged the gas in reactor using gaseous mixture, and boosts to 1.6MPa, and design temperature is 120 DEG C, with 300r/min
Stirring 6h；The gaseous mixture is in molar ratio 1:1, ethene and propylene are mixed；After above-mentioned stirring terminates, natural cooling
To room temperature, carry out discharging and collect out material, material will be gone out and be put into centrifuge, 15min is centrifuged with 900r/min, collect supernatant
Liquid, supernatant is placed in freezing processing 7h in -20 DEG C of refrigerating chamber, frozen material is put into pulverizer and is crushed, and crosses 150 mesh
Sieve, collects sieving particle；In mass ratio 1:5, sieving particle and n-hexane are put into container, and container is placed in ultrasonic wave shake
Swing in device, setpoint frequency is 2.1MHz, temperature is 55 DEG C, shake 35min, then to the 3- of addition sieving granular mass 9% in container
Aminopropyltriethoxywerene werene, continue shake 3h, then the mixture in container is put into rotary evaporator remove just oneself
Alkane, collects residue, you can obtain composite thick oil viscosity reducer.
By the composite thick oil viscosity reducer obtained by the present invention and water in mass ratio 5:100 ratio is well mixed, and viscosity reduction is obtained
The agent aqueous solution, controls temperature for 90 DEG C, is 1 by viscous crude and thinner aqueous solution mass ratio:3, by thinner aqueous solution injection well
Under, stirred with mixing plant, after testing, there is the composite thick oil viscosity reducer obtained by the present invention good viscosity reduction to imitate
Really, viscosity break ratio is 99.9%, and demulsifier compatibility is 98%, and recovery ratio improves 30%.
Example 3
Count by weight, take 63 parts of mass fractions for 70% ethanol solution, 37 parts of acrylamides, 27 parts of acrylic acid, 15 parts
1.5mol/L sodium hydroxide solutions, 7 parts of 1- dodecyl imidazoles and 6 parts of potassium peroxydisulfates, are put into reactor, are protected using nitrogen
Shield, design temperature is 45 DEG C, with 180r/min stirring reactions 4h；After above-mentioned stirring reaction terminates, add in reactor respectively
Enter styrene, the maleic anhydride of aforesaid propylene acid amides quality 35% and the aforesaid propylene acid amides 8% of the quality such as aforesaid propylene acid amides
Alumina, is discharged the gas in reactor using gaseous mixture, and boosts to 1.4MPa, and design temperature is 115 DEG C, with 300r/min
Stirring 5h；The gaseous mixture is in molar ratio 1:1, ethene and propylene are mixed；After above-mentioned stirring terminates, natural cooling
To room temperature, carry out discharging and collect out material, material will be gone out and be put into centrifuge, 13min is centrifuged with 900r/min, collect supernatant
Liquid, supernatant is placed in freezing processing 6.5h in -25 DEG C of refrigerating chamber, frozen material is put into pulverizer and is crushed, and crosses 150
Mesh sieve, collects sieving particle；In mass ratio 1:4, sieving particle and n-hexane are put into container, and container is placed in ultrasonic wave
In oscillator, setpoint frequency is 1.8MHz, and temperature is 53 DEG C, shakes 32min, then to addition sieving granular mass 8% in container
APTES, continues to shake 2.5h, then the mixture in container is put into rotary evaporator and is removed
N-hexane, collects residue, you can obtain composite thick oil viscosity reducer.
By the composite thick oil viscosity reducer obtained by the present invention and water in mass ratio 2:100 ratio is well mixed, and viscosity reduction is obtained
The agent aqueous solution, controls temperature for 55 DEG C, is 1 by viscous crude and thinner aqueous solution mass ratio:2, by thinner aqueous solution injection well
Under, stirred with mixing plant, after testing, there is the composite thick oil viscosity reducer obtained by the present invention good viscosity reduction to imitate
Really, viscosity break ratio is 99.5%, and demulsifier compatibility is 97%, and recovery ratio improves 25%.
Claims (1)
1. a kind of preparation method of composite thick oil viscosity reducer, it is characterised in that specific preparation process is：
（1）Count by weight, take 60~65 parts of mass fractions for 70% ethanol solution, 35~40 parts of acrylamides, 25~30
Part acrylic acid, 13~16 parts of 1.5mol/L sodium hydroxide solutions, 6~8 parts of 1- dodecyl imidazoles and 5~7 parts of potassium peroxydisulfates, put
Enter in reactor, protected using nitrogen, design temperature is 40~50 DEG C, with 3~5h of 180r/min stirring reactions；
（2）After above-mentioned stirring reaction terminates, respectively to adding the styrene of the quality such as aforesaid propylene acid amides, above-mentioned in reactor
The maleic anhydride of acrylamide quality 30~40% and the alumina of aforesaid propylene acid amides 6~9%, using gaseous mixture by reactor
Gas discharge, and boost to 1.2~1.6MPa, design temperature is 110~120 DEG C, and 4~6h is stirred with 300r/min；It is described
Gaseous mixture is in molar ratio 1：1, ethene and propylene are mixed；
（3）After above-mentioned stirring terminates, room temperature is naturally cooled to, carry out discharging and collect out material, material will gone out and be put into centrifuge
In, 10~15min is centrifuged with 900r/min, supernatant is collected, supernatant is placed in -30~-20 DEG C of refrigerating chamber at freezing
6~7h of reason, frozen material is put into pulverizer and is crushed, and crosses 150 mesh sieves, collects sieving particle；
（4）In mass ratio 1：3~1：5, sieving particle and n-hexane are put into container, and container is placed in ultrasonic oscillation device
In, setpoint frequency is 1.6~2.1MHz, and temperature is 50~55 DEG C, shakes 30~35min, then to addition sieving particle in container
The APTES of quality 6~9%, continues to shake 2~3h, and the mixture in container then is put into rotation
N-hexane is removed in evaporator, residue is collected, you can composite thick oil viscosity reducer is obtained.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372816A (en) * | 2019-07-26 | 2019-10-25 | 中国海洋石油集团有限公司 | A kind of preparation method of thickened oil recovery macromolecule thinner |
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| CN101845299A (en) * | 2010-05-17 | 2010-09-29 | 湖北大学 | Crude oil pour point depressant and preparation method thereof |
| CN102108292A (en) * | 2009-12-29 | 2011-06-29 | 中国石油天然气股份有限公司 | Viscosity-reducing and pour-point-reducing composition for crude oil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101768462A (en) * | 2008-12-31 | 2010-07-07 | 中国石油化工股份有限公司 | Emulsifying and viscosity-decreasing method of thick oil |
| CN102108292A (en) * | 2009-12-29 | 2011-06-29 | 中国石油天然气股份有限公司 | Viscosity-reducing and pour-point-reducing composition for crude oil |
| CN101824314A (en) * | 2010-03-10 | 2010-09-08 | 中国地质大学（武汉） | Terpolymer oil soluble viscosity reducer for thick oil exploration and transportation and preparation method thereof |
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| CN104087278A (en) * | 2014-05-12 | 2014-10-08 | 青岛蓬勃石油技术服务有限公司 | Viscosity reducer and production technology thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372816A (en) * | 2019-07-26 | 2019-10-25 | 中国海洋石油集团有限公司 | A kind of preparation method of thickened oil recovery macromolecule thinner |
| CN110372816B (en) * | 2019-07-26 | 2022-02-15 | 中国海洋石油集团有限公司 | Preparation method of high-molecular viscosity reducer for thickened oil exploitation |
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Application publication date: 20170613 |
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