CN102676145A - High-temperature foaming agent and preparation method thereof - Google Patents
High-temperature foaming agent and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a high-temperature foaming agent and a preparation method thereof, wherein the high-temperature foaming agent is prepared from the following materials in percentage by weight: 40-50% of alpha-olefin sulfonate, 25-35% of aryl alkyl sulfonate, 1-5% of high-temperature foam stabilizer and the balance of water. The preparation method of the high-temperature foaming agent comprises the following steps of: placing alpha-olefin sulfonate and aryl alkyl sulfonate in a mixed kettle, stirring, heating to 45-50 DEG C, adding the high-temperature foam stabilizer and water slowly, stirring continuously for 45-60 minutes, reducing temperature and discharging, thereby obtaining the high-temperature foaming agent. The high-temperature foaming agent provided by the invention has good thermal stability and high foaming and sealing performances under high temperature, and has wide application prospect in thickened oil deposit steam injection heat collecting and steam channeling.
Description
Technical field
The present invention relates to a kind of high-temperature foaming agent and preparation method thereof, relate in particular to the anti-vapour of a kind of heavy crude reservoir heat extraction by steam injection and scurry high-temperature foaming agent of usefulness and preparation method thereof, belong to technical field of petroleum extraction.
Background technology
Heavy crude reservoir is through too much round steam stimulation or change the steam flood stage over to, along with the increase of gas injection rate with annotate the prolongation of vapour time, can steam overlap occur and vapour is scurried phenomenon.Scurry in case vapour takes place, the steam folk prescription will occur to advancing by leaps and bounds, the oil reservoir heating is inhomogeneous, and steam carries out invalid channelling at high permeability zone, can not effectively heat the hyposmosis band of enrichment oil, thereby causes that the steam swept volume is little, thermo-efficiency is low, deficiency in economic performance.
In order to improve overall swept volume of steam and heavy crude reservoir ultimate recovery factor, must take effective measure to prevent and treat vapour and scurry.The research proof is accompanied by sweep efficiency and efficiency of displacement that steam injects high temperature foam agent can raising injecting steam.But so far, the high temperature resistant whipping agent that can be applied to steam stimulation (temperature is greater than 280 ℃) or steam flood (temperature is greater than 300 ℃) is few, is the resistance to elevated temperatures of foaming agent and restrict this technical application to the key issue of steam stimulation or steam flood.
To the weak point of above-mentioned bottleneck problem and prior art, research and develop that a kind of under hot conditions, to have the strong high-temperature foaming agent of Heat stability is good, foaming and sealing characteristics be one of this area problem demanding prompt solution.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of high-temperature foaming agent that the anti-vapour of viscous crude heat extraction by steam injection is scurried usefulness that is used for, it has the strong characteristics of Heat stability is good, foaming and sealing characteristics under hot conditions.
The present invention also aims to provide the preparation method of above-mentioned high-temperature foaming agent.
In order to achieve the above object; The present invention provides a kind of high-temperature foaming agent, and it is a kind of high-temperature foaming agent that the anti-vapour of viscous crude heat extraction by steam injection is scurried usefulness that can be used in, with the weight percent meter of this high-temperature foaming agent; It comprises following composition: terminal olefin sodium sulfonate 40-50%; Arylalkyl sulfonic acid sodium 25-35%, high temperature foam stablizer 1-5%, all the other are water.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent; By weight percentage; The raw material of preparation terminal olefin sodium sulfonate comprises: sulphur trioxide 15-20%, and terminal olefin 20-25%, surplus is that mass concentration is 20% sodium hydroxide solution.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent; Prepare in the raw material of said terminal olefin sodium sulfonate, terminal olefin is the mixed olefins of C14 terminal olefin and C16 terminal olefin, by weight percentage; The C14 terminal olefin accounts for 40%, and the C16 terminal olefin accounts for 60%.
According to specific embodiments of the present invention; Preferably, in above-mentioned high-temperature foaming agent, by weight percentage; The raw material for preparing said arylalkyl sulfonic acid sodium comprises: toluene 14-16%; Terminal olefin sulfonic acid 47-50%, solid super acid catalyst 1.5-2.0%, surplus is that mass concentration is 20% sodium hydroxide solution.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent, prepare in the raw material of said arylalkyl sulfonic acid sodium, terminal olefin sulfonic acid is the product before the neutralization in the preparation terminal olefin sodium sulfonate process.Said terminal olefin sulfonic acid can prepare through following steps: in reaction kettle, add terminal olefin, stir, heat temperature raising to 45 ℃ then feeds SO
3Carry out sulfonation reaction, when the complete temperature of question response no longer raises, aging 45 minutes and maintain the temperature at 45 ℃-50 ℃, obtain terminal olefin sulfonic acid.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent, prepare in the raw material of said arylalkyl sulfonic acid sodium, solid super acid catalyst is SO
4 2-/ Fe
2O
3
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent; By weight percentage; The raw material for preparing said high temperature foam stablizer comprises: lauryl alcohol 40-45%, and dimethyl dodecyl amine oxide 30-35%, surplus is the lauryl alcohol diethylolamine.
The present invention also is to provide a kind of preparation method of above-mentioned high-temperature foaming agent, and it may further comprise the steps:
Terminal olefin sodium sulfonate, arylalkyl sulfonic acid sodium, high temperature foam stablizer are positioned in the mixing kettle, stir, be warming up to 45 ℃, add entry, continue to stir 45-60 minute, cooling discharge obtains said high-temperature foaming agent.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent, the preparation process of said terminal olefin sodium sulfonate may further comprise the steps:
At first in reaction kettle, add terminal olefin, stir, heat temperature raising to 45 ℃ then feeds SO
3Carry out sulfonation reaction, when the complete temperature of question response no longer raises, aging 45 minutes and maintain the temperature at 45 ℃-50 ℃, obtain terminal olefin sulfonic acid;
In the product (being terminal olefin sulfonic acid) after aging slowly the dropping mass concentration be that 20% sodium hydroxide solution carries out neutralization reaction; Controlled temperature is no more than 55 ℃ in the reaction process; Reaction finishes, and stirs 30 minutes, obtains the terminal olefin sodium sulfonate that part transforms;
The terminal olefin sodium sulfonate product that transforms part is transferred in the autoclave, stirs, and heat temperature raising is to 160-175 ℃ and maintenance, and the pressure-controlling in the autoclave is at 1.0MPa, and hydrolysis is after 30 minutes, and cooling discharge obtains said terminal olefin sodium sulfonate.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent, the preparation process of said arylalkyl sulfonic acid sodium may further comprise the steps:
At first in reaction kettle, add toluene, terminal olefin sulfonic acid, solid super acid catalyst, slowly be heated to 135-145 ℃ and keep, when the acid number of reactant is constant, stop heating, obtain brown viscous liquid;
Using mass concentration then is that 20% NaOH solution carries out neutralization reaction, and temperature is no more than 55 ℃ in the reaction process, stops when being neutralized to the pH value for 8-9, and cooling discharge obtains said arylalkyl sulfonic acid sodium.
According to specific embodiments of the present invention, preferably, in above-mentioned high-temperature foaming agent, the preparation process of said high temperature foam stablizer may further comprise the steps:
In mixing kettle, add lauryl alcohol, dimethyl dodecyl amine oxide, lauryl alcohol diethylolamine, be heated to 60 ℃, stir and mixed in 30 minutes, cooling discharge obtains said high temperature foam stablizer.
The present invention is applicable to that the preparation method of the high-temperature foaming agent that the anti-vapour of viscous crude heat extraction by steam injection is scurried is divided into following four steps completion:
1. the preparation of terminal olefin sodium sulfonate
At first in reaction kettle, add the terminal olefin of 20-25wt%, stir, heat temperature raising to 45 ℃ then feeds the SO of 15-20wt%
3Carry out sulfonation reaction, when the complete temperature of question response no longer raises, aging 45 minutes and maintain the temperature at 45 ℃-50 ℃, obtain terminal olefin sulfonic acid; Slowly dripping the surplus mass concentration in the product (being terminal olefin sulfonic acid) after aging is that 20% sodium hydroxide solution carries out neutralization reaction; Controlled temperature is no more than 55 ℃ in the reaction process; Reaction finishes, and stirs 30 minutes, obtains the terminal olefin sodium sulfonate that part transforms; The terminal olefin sodium sulfonate that transforms part is transferred in the autoclave, and stirring heating is warming up to hydrolysising reacting temperature 160-175 ℃, and also maintenance, pressure-controlling are near 1.0MPa, and hydrolysis is after 30 minutes, and cooling discharge obtains the terminal olefin sodium sulfonate.
2. the preparation of arylalkyl sulfonic acid sodium
At first in reaction kettle, add the toluene of 14-16wt%, the terminal olefin sulfonic acid of 47-50wt%, the solid super acid catalyst of 1.5-2.0wt%; Slowly be heated to temperature of reaction 135-145 ℃ and maintenance; Measure the acid number of system in the reaction process; Till constant, stop heating, obtain brown viscous liquid; Use surplus mass concentration is 20% NaOH solution neutralization reaction, and temperature is no more than 55 ℃ in the reaction process, stopped reaction when being neutralized to the pH value for 8-9, and cooling discharge obtains arylalkyl sulfonic acid sodium.
3. the preparation of high temperature foam stablizer
At first the lauryl alcohol of adding 40-50wt%, dimethyl dodecyl amine oxide and the surplus lauryl alcohol diethylolamine of 30-35wt% in mixing kettle are heated to 60 ℃, stir to mix in 30 minutes, and cooling discharge obtains the high temperature foam stablizer.
4. the preparation of high-temperature foaming agent
At last; Be applicable to that according to preparation the anti-vapour of viscous crude heat extraction by steam injection scurries the weight percent of the high-temperature foaming agent prescription of usefulness: terminal olefin sodium sulfonate 40-50%, arylalkyl sulfonic acid sodium 20-30%, high temperature foam stablizer 1-5%, be positioned in the mixing kettle, stir; Be warming up to 45 ℃; Slowly add entry, continue to stir 45-60 minute, cooling discharge obtains the high-temperature foaming agent that the heavy crude reservoir heat extraction by steam injection is used.
The present invention also provides the purposes of above-mentioned high-temperature foaming agent in the anti-vapour of heavy crude reservoir heat extraction by steam injection is scurried.This high-temperature foaming agent has the strong characteristics of Heat stability is good, foaming and sealing characteristics under hot conditions; Apply it to during the anti-vapour of heavy crude reservoir heat extraction by steam injection scurries; Can be implemented in the viscous crude heat extraction by steam injection process control vapour and scurry, enlarge the swept volume of injecting steam, thereby reach the purpose that improves recovery factor of heavy oil reservoir.
Compare with existing high-temperature foaming agent, high-temperature foaming agent of the present invention has following outstanding advantage:
1. in said high-temperature foaming agent, preferably use a certain proportion of C14 terminal olefin and C16 terminal olefin to be the synthetic preparation of raw material terminal olefin sodium sulfonate, can take into account the strong froth stability of the high foam performance and the C16 terminal olefin sodium sulfonate of C14 terminal olefin sodium sulfonate;
2. in said high-temperature foaming agent; Another becomes the sulfonate radical of the arylalkyl sulfonic acid sodium of component selections to be connected the alkyl end, is different from traditional sodium alkylarysulfonate (like X 2073), and its solvability in the aqueous solution is better; High-temperature stability strengthens, and biological degradability is better;
3. in said high temperature foam agent; Select a certain proportion of lauryl alcohol, dimethyl dodecyl amine oxide and lauryl alcohol diethylolamine as the high temperature foam stablizer; Through the synergy between the different surfaces promoting agent; Can play the effect that strengthens bubble film intensity, thereby improve foamy stability;
4. said high-temperature foaming agent has good thermo-chemical stability under 300 ℃ of conditions of high temperature, aging 96h under 300 ℃ of conditions, and the degradation rate of host sulphonate is less than 15%, and stability significantly is superior to like product;
5. said high-temperature foaming agent foaming power is strong, 300 ℃ aging after, initial gas release still can reach more than 6 times of stoste volume, foaming power significantly is superior to like product;
6. said high-temperature foaming agent froth stability is good, 300 ℃ aging after, half foam life period still can reach more than the 6h, froth stability significantly is superior to like product;
7. the resistance factor of (200 ℃) reaches more than 17.0 under the said high-temperature foaming agent high temperature, and the high temperature sealing characteristics significantly is superior to like product;
8. two of said high-temperature foaming agent kinds of host terminal olefin sodium sulfonates and arylalkyl sulfonic acid sodium all are anion sulfoacid salt tensio-active agents, have reduced the possibility that " chromatographic separation " takes place in the stratum.
Because the above outstanding advantage of said high temperature foam agent, this high temperature foam agent can be implemented in the viscous crude heat extraction by steam injection process control vapour and scurry, enlarge the swept volume of injecting steam, thereby reach the purpose that improves recovery factor of heavy oil reservoir.
Embodiment
Further specify technical scheme of the present invention through concrete preparation embodiment and experimental example below, but can not be interpreted as any qualification practical range of the present invention.
Further specifying of preparation high temperature foam stablizer raw material: lauryl alcohol, tensio-active agent and the suds-stabilizing agent done commonly used, Zhengzhou is made every effort to overcome chemical industry ltd and is produced; Dimethyl dodecyl amine oxide, tensio-active agent and the suds-stabilizing agent done commonly used, the auxiliary reagent factory, Tianjin produces; The lauryl alcohol diethylolamine, tensio-active agent and the suds-stabilizing agent done commonly used, Jiangsu Hai'an Petrochemical Plant produces.
Embodiment 1:
1. the preparation of terminal olefin sodium sulfonate
At first in reaction kettle, add the terminal olefin (wherein the C14 terminal olefin accounts for 40wt%, and the C16 terminal olefin accounts for 60wt%) of 20wt%, stir, heat temperature raising to 45 ℃ then feeds the SO of 15wt%
3Carry out sulfonation reaction, when the complete temperature of question response no longer raises, aging 45 minutes and maintain the temperature at 45 ℃-50 ℃, obtain terminal olefin sulfonic acid;
Slowly dripping mass concentration in the product (being terminal olefin sulfonic acid) after aging is that 20% sodium hydroxide solution carries out neutralization reaction; Controlled temperature is no more than 55 ℃ in the reaction process; Reaction finishes; Stirred 30 minutes, and obtained terminal olefin sodium sulfonate intermediate product (the terminal olefin sodium sulfonate that part transforms);
Be transferred to terminal olefin sodium sulfonate intermediate product in the autoclave, stir, also maintenance, pressure-controlling are near 1.0MPa to hydrolysising reacting temperature 160-175 ℃ for heat temperature raising, and hydrolysis is after 30 minutes, and cooling discharge obtains the terminal olefin sodium sulfonate.
2. the preparation of arylalkyl sulfonic acid sodium
At first in reaction kettle, add the toluene of 14wt%, the terminal olefin sulfonic acid of 47wt%, the solid super acid catalyst of 1.5wt%, slowly be heated to temperature of reaction 135-145 ℃ and maintenance, measure the acid number of system in the reaction process; Till constant, stop heating, obtain brown viscous liquid; The use mass concentration is 20% NaOH solution neutralization reaction; Temperature is no more than 55 ℃ in the reaction process, stopped reaction when being neutralized to the pH value for 8-9, and cooling discharge obtains arylalkyl sulfonic acid sodium.
3. the preparation of high temperature foam stablizer
At first lauryl alcohol, the dimethyl dodecyl amine oxide of 35wt% and the lauryl alcohol diethylolamine of surplus of adding 40wt% in mixing kettle are heated to 60 ℃, stir to mix in 30 minutes, and cooling discharge obtains the high temperature foam stablizer.
4. the preparation of high-temperature foaming agent
Be applicable to that according to preparation the anti-vapour of viscous crude heat extraction by steam injection scurries the weight percent of the high-temperature foaming agent prescription of usefulness: terminal olefin sodium sulfonate 45%, arylalkyl sulfonic acid sodium 25%, high temperature foam stablizer 1-5%; Be positioned in the mixing kettle; Stir, be warming up to 45 ℃, slowly add entry; Continue to stir 45-60 minute, cooling discharge obtains the high-temperature foaming agent that the heavy crude reservoir heat extraction by steam injection is used.
The resistance factor that the high-temperature foaming agent product that obtains carries out under sulphonate degradation rate, aging back half foam life period, the aging initial foam expansion in back and the high temperature is measured.Adopt two-phase titration to measure the variation of high-temperature foaming agent, and then calculate the degradation rate of sulphonate through effective content behind the high temperature ageing.Adopt Waring Blender method test high-temperature foaming agent through half foam life period and initial foam expansion behind the high temperature ageing.During test; The certain mass fractional high-temperature foaming agent solution that 100mL prepares is poured in the Waring whisking appliance, under the 6500r/min rotating speed, stirred 1min, foam is poured in the 1000mL graduated cylinder; Read initial lather volume and lather volume and decay the used time of a half, be the transformation period.
Adopt the resistance factor of dynamic evaluation experimental device to test product, this device is one dimension single tube model, and model is placed horizontally in the thermostat container baking oven, the long 50.0cm of rock core, diameter 3.0cm.During test, earlier rock core is used water saturation, survey the rock core water phase permeability, it is gentle in rock core, to inject water simultaneously by certain vapour-liquid ratio then, and when the pressure reduction at rock core two ends reached steady, the pressure reduction at record rock core two ends this moment was as basic pressure reduction.Then under the same conditions, inject gas and whipping agent, when the pressure reduction at rock core two ends reached balance, the pressure reduction at record rock core two ends this moment was as operting differential pressure once more.Resistance factor is the ratio of operting differential pressure and basic pressure reduction.The resistance factor test condition is: 200 ℃ of temperature, vapour-liquid ratio 1: 1, nitrogen pressure 2.0MPa.
Above testing method please refer to " performance study of heavy crude heat extraction high temperature anti-migration agent " (Guo Donghong; Xin Haochuan, Cui Xiaodong etc. the performance study [J] of heavy crude heat extraction high temperature anti-migration agent. Speciality Petrochemicals progress, 2006; 7 (10): 1-3.) and " the spontaneous carbon dioxide foaming of ultra viscous crude handle up Study on Technology and application " (Zhang Shoujun; Guo Donghong. the spontaneous carbon dioxide foaming of ultra viscous crude handle up Study on Technology and application [J], oil drilling technology, 2009; 37 (5): 101-104.), experimental result is as shown in table 1:
The various The performance test results of table 1 high-temperature foaming agent
| Project | Test result |
| Degradation rate behind 300 ℃ of aging 96h | 14.6％ |
| Behind 300 ℃ of aging 96h, 100mL, the initial foam expansion of 0.5% foaming agent solution | 6.4 |
| Behind 300 ℃ of aging 96h, the transformation period of 0.5% foaming agent solution | 6.0h |
| 200 ℃, the resistance factor of 0.5% foaming agent solution | 17.2 |
Embodiment 2:
1. the preparation of terminal olefin sodium sulfonate
At first in reaction kettle, add the terminal olefin (wherein the C14 terminal olefin accounts for 40wt%, and the C16 terminal olefin accounts for 60wt%) of 25wt%, stir, heat temperature raising to 45 ℃ then feeds the SO of 20wt%
3Carry out sulfonation reaction, when the complete temperature of question response no longer raises, aging 45 minutes and maintain the temperature at 45 ℃-50 ℃, obtain terminal olefin sulfonic acid;
Slowly dripping the surplus mass concentration in the product (being terminal olefin sulfonic acid) after aging is that 20% sodium hydroxide solution carries out neutralization reaction; Controlled temperature is no more than 55 ℃ in the reaction process; Reaction finishes; Stirred 30 minutes, and obtained terminal olefin sodium sulfonate intermediate product (the terminal olefin sodium sulfonate that part transforms);
Be transferred to terminal olefin sodium sulfonate intermediate product in the autoclave, stir, also maintenance, pressure-controlling are near 1.0MPa to hydrolysising reacting temperature 160-175 ℃ for heat temperature raising, and hydrolysis is after 30 minutes, and cooling discharge obtains the terminal olefin sodium sulfonate.
2. the preparation of arylalkyl sulfonic acid sodium
At first in reaction kettle, add the toluene of 16wt%, the terminal olefin sulfonic acid of 49wt%, the solid super acid catalyst of 2.0wt%, slowly be heated to temperature of reaction 135-145 ℃ and maintenance, measure the acid number of system in the reaction process; Till constant, stop heating, obtain brown viscous liquid; Use surplus mass concentration is 20% NaOH solution neutralization reaction; Temperature is no more than 55 ℃ in the reaction process, stopped reaction when being neutralized to the pH value for 8-9, and cooling discharge obtains arylalkyl sulfonic acid sodium.
3. the preparation of high temperature foam stablizer
At first lauryl alcohol, the dimethyl dodecyl amine oxide of 30wt% and the lauryl alcohol diethylolamine of surplus of adding 45wt% in mixing kettle are heated to 60 ℃, stir to mix in 30 minutes, and cooling discharge obtains the high temperature foam stablizer.
4. the preparation of high-temperature foaming agent
At last; Be applicable to that according to preparation the anti-vapour of viscous crude heat extraction by steam injection scurries the weight percent of the high-temperature foaming agent prescription of usefulness: terminal olefin sodium sulfonate 50%, arylalkyl sulfonic acid sodium 20%, high temperature foam stablizer 4%, be positioned in the mixing kettle, start stirring; Be warming up to 45 ℃; Slowly add entry, continue to stir 45-60 minute, cooling discharge obtains the high-temperature foaming agent that the heavy crude reservoir heat extraction by steam injection is used.
The high-temperature foaming agent product that obtains is carried out the resistance factor test under sulphonate degradation rate, aging back half foam life period, the aging initial foam expansion in back and the high temperature, and testing method is identical with embodiment 1, and experimental result is as shown in table 2:
The various The performance test results of table 2 high-temperature foaming agent
| Project | Test result |
| Degradation rate behind 300 ℃ of aging 96h | 13.8％ |
| Behind 300 ℃ of aging 96h, 100mL, the initial foam expansion of 0.5% foaming agent solution | 6.5 |
| Behind 300 ℃ of aging 96h, the transformation period of 0.5% foaming agent solution | 6.2h |
| 200 ℃, the resistance factor of 0.5% foaming agent solution | 17.8 |
Can find out through above experimental result, high-temperature foaming agent provided by the present invention, it is strong to have Heat stability is good, foaming and a sealing characteristics.Resistance factor reaches more than 17.0 under 200 ℃ of conditions, in the anti-vapour of heavy crude reservoir heat extraction by steam injection is scurried, has broad application prospects.
Claims (12)
1. high-temperature foaming agent, with the weight percent meter of this high-temperature foaming agent, it comprises following composition: terminal olefin sodium sulfonate 40-50%, arylalkyl sulfonic acid sodium 25-35%, high temperature foam stablizer 1-5%, all the other are water.
2. high-temperature foaming agent as claimed in claim 1, wherein, by weight percentage, the raw material for preparing said terminal olefin sodium sulfonate comprises: sulphur trioxide 15-20%, terminal olefin 20-25%, surplus is that mass concentration is 20% sodium hydroxide solution.
3. high-temperature foaming agent as claimed in claim 1, wherein, by weight percentage; The raw material for preparing said arylalkyl sulfonic acid sodium comprises: toluene 14-16%; Terminal olefin sulfonic acid 47-50%, solid super acid catalyst 1.5-2.0%, surplus is that mass concentration is 20% sodium hydroxide solution.
4. high-temperature foaming agent as claimed in claim 1, wherein, by weight percentage, the raw material for preparing said high temperature foam stablizer comprises: lauryl alcohol 40-45%, dimethyl dodecyl amine oxide 30-35%, surplus is the lauryl alcohol diethylolamine.
5. according to claim 1 or claim 2 high-temperature foaming agent wherein, prepares in the raw material of said terminal olefin sodium sulfonate; Terminal olefin is the mixed olefins of C14 terminal olefin and C16 terminal olefin; By weight percentage, the C14 terminal olefin accounts for 40%, and the C16 terminal olefin accounts for 60%.
6. like claim 1 or 3 described high-temperature foaming agents, wherein, prepare in the raw material of said arylalkyl sulfonic acid sodium, terminal olefin sulfonic acid is the product before the neutralization in the preparation terminal olefin sodium sulfonate process.
7. like claim 3 or 6 described high-temperature foaming agents, wherein, prepare in the raw material of said arylalkyl sulfonic acid sodium, solid super acid catalyst is SO
4 2-/ Fe
2O
3
8. claim 1-7 appoints the preparation method of a described high-temperature foaming agent, and it may further comprise the steps:
Terminal olefin sodium sulfonate, arylalkyl sulfonic acid sodium, high temperature foam stablizer are positioned in the mixing kettle, stir, be warming up to 45 ℃, add entry, continue to stir 45-60 minute, cooling discharge obtains said high-temperature foaming agent.
9. preparation method as claimed in claim 8, wherein, the preparation process of said terminal olefin sodium sulfonate may further comprise the steps:
At first in reaction kettle, add terminal olefin, stir, heat temperature raising to 45 ℃ then feeds SO
3Carry out sulfonation reaction, when the complete temperature of question response no longer raises, aging 45 minutes and maintain the temperature at 45 ℃-50 ℃, obtain terminal olefin sulfonic acid;
Slowly drip mass concentration in the product after aging and be 20% sodium hydroxide solution and carry out neutralization reaction, controlled temperature is no more than 55 ℃ in the reaction process, and reaction finishes, and stirs 30 minutes, obtains the terminal olefin sodium sulfonate of part conversion;
The terminal olefin sodium sulfonate that transforms part is transferred in the autoclave, stirs, and heat temperature raising is to 160-175 ℃ and maintenance, and the pressure-controlling in the autoclave is at 1.0MPa, and hydrolysis is after 30 minutes, and cooling discharge obtains said terminal olefin sodium sulfonate.
10. like claim 8 or 9 described preparing methods, wherein, the preparation process of said arylalkyl sulfonic acid sodium may further comprise the steps:
At first in reaction kettle, add toluene, terminal olefin sulfonic acid, solid super acid catalyst, slowly be heated to 135-145 ℃ and keep, when the acid number of reactant is constant, stop heating, obtain brown viscous liquid;
Using mass concentration then is that 20% NaOH solution carries out neutralization reaction, and temperature is no more than 55 ℃ in the reaction process, stops when being neutralized to the pH value for 8-9, and cooling discharge obtains said arylalkyl sulfonic acid sodium.
11. preparation method as claimed in claim 8, wherein, the preparation process of said high temperature foam stablizer may further comprise the steps:
In mixing kettle, add lauryl alcohol, dimethyl dodecyl amine oxide, lauryl alcohol diethylolamine, be heated to 60 ℃, stir and mixed in 30 minutes, cooling discharge obtains said high temperature foam stablizer.
12. claim 1-7 appoints the purposes of a described high-temperature foaming agent in the anti-vapour of heavy crude reservoir heat extraction by steam injection is scurried.
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| CN103923625A (en) * | 2013-01-14 | 2014-07-16 | 中国石油天然气集团公司 | Foaming agent for well drilling under high temperature environment |
| CN106079464A (en) * | 2016-06-29 | 2016-11-09 | 芜湖市佳谷豆工贸有限公司 | A kind of production technology of flame-resistant high-temperature-resistant PVC rubber |
| CN104109520B (en) * | 2013-04-22 | 2017-01-25 | 中国石油化工股份有限公司 | Foaming agent suitable for high-temperature and high-salinity oil reservoir and preparation method thereof |
| CN106437650A (en) * | 2015-08-05 | 2017-02-22 | 中国石油化工股份有限公司 | Foam-agent-assisted steam flooding method for increasing recovery rate of heavy oil reservoir with edge water |
| CN107603584A (en) * | 2017-09-13 | 2018-01-19 | 中国石油天然气股份有限公司 | A kind of high temperature foam stabilizer and preparation method and application |
| CN111088026A (en) * | 2019-11-20 | 2020-05-01 | 中国石油天然气股份有限公司 | Foaming agent and preparation method and application thereof |
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| CN114555754A (en) * | 2019-08-05 | 2022-05-27 | 罗地亚经营管理公司 | Foaming formulation for enhanced oil recovery |
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| CN101224957A (en) * | 2008-02-01 | 2008-07-23 | 中国日用化学工业研究院 | Foaming agent for civil construction as well as preparation method and use thereof |
| CN102212356A (en) * | 2011-04-08 | 2011-10-12 | 西安石油大学 | High temperature foaming agent |
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| CN111088026A (en) * | 2019-11-20 | 2020-05-01 | 中国石油天然气股份有限公司 | Foaming agent and preparation method and application thereof |
| CN111088026B (en) * | 2019-11-20 | 2022-02-01 | 中国石油天然气股份有限公司 | Foaming agent and preparation method and application thereof |
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