CN116606395A - Preparation method of clean fracturing fluid thickening agent for petroleum oil gas well - Google Patents
Preparation method of clean fracturing fluid thickening agent for petroleum oil gas well Download PDFInfo
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- CN116606395A CN116606395A CN202310347971.2A CN202310347971A CN116606395A CN 116606395 A CN116606395 A CN 116606395A CN 202310347971 A CN202310347971 A CN 202310347971A CN 116606395 A CN116606395 A CN 116606395A
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- 239000002562 thickening agent Substances 0.000 title claims abstract description 30
- 239000012530 fluid Substances 0.000 title claims abstract description 21
- 239000003208 petroleum Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims abstract description 18
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims abstract description 18
- 239000004289 sodium hydrogen sulphite Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 12
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 11
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 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 claims abstract description 11
- 239000007864 aqueous solution Substances 0.000 claims abstract description 11
- 229950004959 sorbitan oleate Drugs 0.000 claims abstract description 11
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000003350 kerosene Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 230000035484 reaction time Effects 0.000 claims description 5
- 239000003209 petroleum derivative Substances 0.000 claims description 4
- 238000004945 emulsification Methods 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000008719 thickening Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003792 electrolyte Substances 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 abstract description 4
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000004220 aggregation Methods 0.000 abstract description 3
- 125000003368 amide group Chemical group 0.000 abstract description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 3
- 230000002209 hydrophobic effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 13
- 239000003999 initiator Substances 0.000 description 10
- 239000000178 monomer Substances 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 238000006116 polymerization reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012966 redox initiator Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007863 gel particle Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- 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
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/885—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention relates to the technical field of petroleum exploitation, in particular to a preparation method of a clean fracturing fluid thickening agent for petroleum and gas wells, which comprises the steps of placing sorbitan oleate, butyl acrylate and kerosene in a three-neck flask to prepare an oil phase product; adding acrylic acid, acrylamide, ammonia water and water into another flask to obtain a water phase product; mixing the water phase product and the oil phase product, introducing nitrogen, adding sodium bisulphite aqueous solution, sodium bisulphite and OP-10, and uniformly stirring to obtain the thickening agent. The fracturing fluid thickener prepared by the invention contains carboxyl, amide groups and long-chain ten-thousand-group structures, so that the electrolyte resistance is enhanced, the stability is enhanced, molecular chains can form intramolecular and molecular part association by the thickener solution, and when the concentration of the copolymer is too high to reach a certain critical value, the molecular chains are aggregated due to hydrophobic association, and the aggregation is mainly intermolecular association, so that a crosslinked network structure can be formed, and the thickening effect is improved.
Description
Technical Field
The invention relates to the technical field of petroleum exploitation, in particular to a preparation method of a clean fracturing fluid thickening agent for petroleum oil and gas wells.
Background
In the petroleum exploitation process, hydraulic fracturing is an important technical means for stabilizing and increasing the yield of a production well, and the diversion capacity can be improved through fractures generated by fracturing, the seepage state of fluid is changed, and the energy loss is reduced, so that the friendly yield is improved. In the fracturing technology, the fracturing fluid is taken as a medium for making a joint and carrying sand, is taken as a main agent of the fracturing fluid, and the thickening agent has the main effects of thickening, reducing the filtration and the friction resistance of the fracturing fluid and the like, and the aqueous solution of the thickening agent forms high-viscosity elastic gel of a high-molecular net frame structure through the crosslinking action of the crosslinking agent, so that the high-viscosity elastic gel meets the requirements of a suspension propping agent and high-fracture viscosity.
Because the thickening effect of the thickener is related to the size of the gel particle size, the water absorption mechanism of the polymer, and the like, many researches on the synthesis process of the thickener are carried out, and although the thickening performance of the thickener meets the current use requirement, some thickeners have the problem of poor electrolyte resistance, and the thickening effect of the thickener in the use process is influenced. Therefore, the improvement is made by the inventor, and a preparation method of the clean fracturing fluid thickening agent for the petroleum oil gas well is provided.
Disclosure of Invention
The invention provides a preparation method of a clean fracturing fluid thickening agent for a petroleum oil-gas well, which comprises the following steps:
step one: putting sorbitan oleate, butyl acrylate and kerosene into a three-neck flask according to the proportion of 2:3:5;
step two: placing the three-neck flask in warm water, and stirring substances in the three-neck flask through a glass rod to dissolve the substances to prepare an oil phase product;
step three: adding acrylic acid, acrylamide, ammonia water and water into another flask according to the ratio of 2:1:2:5, and stirring with a glass rod to dissolve the materials, thereby obtaining a water phase product;
step four: adding the water phase product into a flask filled with the oil phase product, sealing the flask, stirring for half an hour by a high-speed stirrer, and pre-emulsifying;
step five: after the pre-emulsification is completed, nitrogen is introduced into the flask for half an hour, and stirring is continued for half an hour at a medium speed;
step six: adding sodium bisulphite aqueous solution into the stirred liquid in the fifth step, and then dropwise adding sodium bisulphite, and reacting for 5 hours to obtain a pre-finished product solution;
step seven: and adding OP-10 into the pre-finished product solution, and uniformly stirring to obtain a thickener finished product solution.
As a preferable technical scheme of the invention, the three-neck flask has the specification of 500ml; the temperature of Wen Shuiji is 40 ℃.
As a preferable technical scheme of the invention, the mass ratio of the oil phase product to the water phase product is 1.5:1.
As a preferable technical scheme of the invention, the mass ratio of the sorbitan oleate to the OP-10 is 5:1, and the mixing amount of the sorbitan oleate and the OP-10 accounts for 10%.
As a preferable technical scheme of the invention, the quantity of the ammonia water is 60g, the mass fraction of the ammonia water is 27%, and the reaction time of the step three is 3 hours.
As a preferable technical scheme of the invention, the mass ratio of the sodium bisulphite aqueous solution is 1%, the mass ratio of the sodium bisulphite is 0.2%, the total mass ratio of the acrylic acid and the acrylamide is 30%, and the mass ratio of the acrylic acid to the acrylamide is 2:1.
The beneficial effects of the invention are as follows: the fracturing fluid thickener prepared by the invention contains carboxyl, amide groups and long-chain ten-thousand-group structures, so that the electrolyte resistance is enhanced, the stability is enhanced, molecular chains can form intramolecular and molecular part association by the thickener solution, and when the concentration of the copolymer is too high to reach a certain critical value, the molecular chains are aggregated due to hydrophobic association, and the aggregation is mainly intermolecular association, so that a crosslinked network structure can be formed, and the thickening effect is improved.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic flow chart of a method for preparing a clean fracturing fluid thickener for petroleum oil and gas wells.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Examples: as shown in FIG. 1, the preparation method of the clean fracturing fluid thickener for the petroleum oil and gas well comprises the following steps:
step one: putting sorbitan oleate, butyl acrylate and kerosene into a three-neck flask according to the proportion of 2:3:5;
step two: placing the three-neck flask in warm water, and stirring substances in the three-neck flask through a glass rod to dissolve the substances to prepare an oil phase product;
step three: adding acrylic acid, acrylamide, ammonia water and water into another flask according to the ratio of 2:1:2:5, and stirring with a glass rod to dissolve the materials, thereby obtaining a water phase product;
step four: adding the water phase product into a flask filled with the oil phase product, sealing the flask, stirring for half an hour by a high-speed stirrer, and pre-emulsifying;
step five: after the pre-emulsification is completed, nitrogen is introduced into the flask for half an hour, and stirring is continued for half an hour at a medium speed;
step six: and (3) adding sodium bisulphite aqueous solution into the stirred liquid in the step five, and then dropwise adding sodium bisulphite, and reacting for 5 hours to obtain a pre-finished product solution. The sodium bisulphite aqueous solution is used as an initiator, and substances which can cause the activation of monomers and further generate free radicals in the reaction process are compared with a redox initiator, a thermal decomposition initiator and an azo initiator, so that the redox initiator has higher activation energy when being decomposed independently, the initiation rate can be improved, and the polymerization reaction temperature can be reduced; one initiator molecule in the thermal decomposition initiator is decomposed to generate two free radicals with initiating activity; the azo initiator can be uniformly decomposed at a proper decomposition speed under the condition of 50-80 ℃, the influence of a solvent on the decomposition speed is small, the production, the transportation and the storage are convenient, the use is safe, the cost is low, but the azo initiator is usually easy to dissolve in an organic solvent and difficult to dissolve in water, so that the azo initiator is difficult to uniformly distribute in a reaction system, the initiator of a redox system is selected in consideration of factors such as the temperature of polymerization reaction, the difference of a polymerization method, the influence on a product when the reaction is carried out, the relative molecular weight of the preparation is high, and the like, and finally, the sodium bisulphite aqueous solution is selected as the initiator by comparison of the following table.
Step seven: and adding OP-10 into the pre-finished product solution, and uniformly stirring to obtain a thickener finished product solution. The specification of the three-neck flask is 500ml; wen Shuiji is at a temperature of 40 ℃.
The mass ratio of the oil phase product to the water phase product is 1.5:1. In the inverse emulsion reaction process, the oil phase affects the heat transfer rate, emulsion particle size, morphology, stability and reaction process of a polymerization system, when the oil-water quality is relatively high, the conversion rate is reduced, the polymerization reaction is affected, when the oil-water quality is relatively low, the conversion rate and the molecular weight of the polymer are increased, the polymerization reaction is easier to be carried out stably, and experiments prove that when the mass ratio of the oil phase to the water phase is 1.5:1, the molecular weight of the polymer and the conversion rate of the monomer are the largest. Contributing to the enhancement of the thickening effect.
The mass ratio of the sorbitan oleate to the OP-10 is 5:1, and the mixing amount of the sorbitan oleate and the OP-10 accounts for 10%. The conversion of the monomer and the molecular weight of the polymer increase with the increase of the amount of sorbitan oleate and OP-10, but the higher conversion of the monomer and the molecular weight of the polymer can be ensured by determining the conversion to be 10% in consideration of the economic cost.
The amount of ammonia water was 60g, and the mass fraction of ammonia water was 27%, and the reaction time in the third step was 3 hours. The amount of ammonia and the reaction time were determined by the following experimental data.
The reaction time was determined to be 3 hours since the difference in product properties and viscosity was not large at 3 hours and 4 hours.
The mass ratio of the sodium bisulphite aqueous solution is 1%, the mass ratio of the sodium bisulphite is 0.2%, the total mass ratio of the acrylic acid and the acrylamide is 30%, and the mass ratio of the acrylic acid to the acrylamide is 2:1. When the amount of the anionic monomer is increased, the molecular weight of the copolymer and the monomer conversion rate are increased, when the mass ratio of the aqueous solution of sodium bisulphite is 1%, the mass ratio of sodium bisulphite is 0.2%, and the total mass ratio of the acrylic acid and the acrylamide is 30%, the molecular weight of the polymer and the conversion rate of the monomer are maximum, and at this time, the electrolyte resistance of the polymer is better.
The fracturing fluid thickener prepared by the invention contains carboxyl, amide groups and long-chain ten-thousand-group structures, so that the electrolyte resistance is enhanced, the stability is enhanced, molecular chains can form intramolecular and molecular part association by the thickener solution, and when the concentration of the copolymer is too high to reach a certain critical value, the molecular chains are aggregated due to hydrophobic association, and the aggregation is mainly intermolecular association, so that a crosslinked network structure can be formed, and the thickening effect is improved.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The preparation method of the clean fracturing fluid thickener for the petroleum oil and gas well is characterized by comprising the following steps of:
step one: putting sorbitan oleate, butyl acrylate and kerosene into a three-neck flask according to the proportion of 2:3:5;
step two: placing the three-neck flask in warm water, and stirring substances in the three-neck flask through a glass rod to dissolve the substances to prepare an oil phase product;
step three: adding acrylic acid, acrylamide, ammonia water and water into another flask according to the ratio of 2:1:2:5, and stirring with a glass rod to dissolve the materials, thereby obtaining a water phase product;
step four: adding the water phase product into a flask filled with the oil phase product, sealing the flask, stirring for half an hour by a high-speed stirrer, and pre-emulsifying;
step five: after the pre-emulsification is completed, nitrogen is introduced into the flask for half an hour, and stirring is continued for half an hour at a medium speed;
step six: adding sodium bisulphite aqueous solution into the stirred liquid in the fifth step, and then dropwise adding sodium bisulphite, and reacting for 5 hours to obtain a pre-finished product solution;
step seven: and adding OP-10 into the pre-finished product solution, and uniformly stirring to obtain a thickener finished product solution.
2. The method for preparing the clean fracturing fluid for the petroleum and gas wells, according to claim 1, wherein the specification of the three-neck flask is 500ml; the temperature of Wen Shuiji is 40 ℃.
3. The method for preparing the clean fracturing fluid thickener for petroleum and gas wells according to claim 1, wherein the mass ratio of the oil phase product to the water phase product is 1.5:1.
4. The preparation method of the clean fracturing fluid thickener for petroleum and gas wells, which is characterized in that the mass ratio of sorbitan oleate to OP-10 is 5:1, and the mixing amount of sorbitan oleate to OP-10 is 10%.
5. The method for preparing the clean fracturing fluid thickener for petroleum and gas wells according to claim 1, wherein the amount of the ammonia water is 60g, the mass fraction of the ammonia water is 27%, and the reaction time of the step three is 3 hours.
6. The method for preparing the clean fracturing fluid thickener for petroleum and gas wells according to claim 1, wherein the mass ratio of the sodium bisulphite aqueous solution is 1%, the mass ratio of the sodium bisulphite is 0.2%, the total mass ratio of the acrylic acid and the acrylamide is 30%, and the mass ratio of the acrylic acid to the acrylamide is 2:1.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117363328A (en) * | 2023-10-12 | 2024-01-09 | 兰州金盛隆石油化工有限公司 | Defoaming agent composition and production device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117363328A (en) * | 2023-10-12 | 2024-01-09 | 兰州金盛隆石油化工有限公司 | Defoaming agent composition and production device thereof |
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