CN1426833A - Alkyl phenyl sulfonate surfactant, its preparation and application in tertiary oil extraction - Google Patents
Alkyl phenyl sulfonate surfactant, its preparation and application in tertiary oil extraction Download PDFInfo
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- CN1426833A CN1426833A CN01144907.1A CN01144907A CN1426833A CN 1426833 A CN1426833 A CN 1426833A CN 01144907 A CN01144907 A CN 01144907A CN 1426833 A CN1426833 A CN 1426833A
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- alkyl benzene
- sulfonate surfactant
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- benzene sulfonate
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Abstract
An alkyl phenylsufonate (equivalent at 400-470) as surfactant suitable for weak alkali is prepared from the heavy alkyl phenyl group (between C10 and C24) through sulfonating reaction and compounding with alcohol (5-25%). Its advantages are easily available raw materials, low cost and high stability of product. It can be used to prepare a three-element composition for displacing petroleum with high recovey rate increased by 20% or more.
Description
Technical field
The present invention relates to the oil field with being suitable for weakly alkaline alkyl benzene sulfonate surfactant and its production and application, refering in particular to being suitable for weakly alkaline alkyl benzene sulfonate surfactant, its preparation method and the application in tertiary oil recovery thereof.
Background technology
At present, alkali used in the three-component compound system mainly adopts NaOH, certainly will cause highly basic to the injury of oil reservoir and the generation of scale formation in oil displacement process, is unfavorable for that ternary complex ties up to the large-area applications in oil field.Be suitable for weakly alkaline tensio-active agent though have, normally sulfonated petro-leum or the tensio-active agent by composite preparation, and used weakly alkaline concentration is higher relatively.
Summary of the invention
The purpose of this invention is to provide and when composite, to have low interfacial tension, be suitable for weakly alkaline alkyl benzene sulfonate surfactant cheaply;
Another object of the present invention provides the above-mentioned method that is suitable for weakly alkaline alkyl benzene sulfonate surfactant of a kind of easy, practical preparation;
A further object of the present invention provides and above-mentionedly is suitable for weakly alkaline alkyl benzene sulfonate surfactant as composite dose of application in tertiary oil recovery in oil-displacing agent or the ternary composite driving;
For achieving the above object, the invention provides a kind of alkyl benzene sulfonate surfactant, it is characterized in that the average equivalent of described alkylbenzene sulfonate is 400-470, and alkyl phenyl is C
10-C
24Between the heavy alkyl benzene base, and the alcohol of composite 5%--25% in the alkylbenzene sulfonate obtains the final product alkyl benzene sulfonate surfactant.
In addition, in above-mentioned alkyl benzene sulfonate surfactant, described alcohol is propyl alcohol, Virahol, propyl carbinol or isopropylcarbinol.
Technical solution of the present invention also comprises the preparation method of abovementioned alkyl benzene sulfonate surfactant, may further comprise the steps:
A) select C
10-C
24Between heavy alkyl benzene be raw material;
B) sulfonation-under 40-60 ℃, with containing 20%--30% concentration SO
3Oleum, be that the ratio of 0.5-1.5 is with the heavy alkyl benzene sulfonation in oleum and heavy alkyl benzene weight ratio; Under sulfonation temperature, wore out 0.2-1.5 hour afterwards, obtain alkyl benzene sulphonate (ABS) and vitriolic mixture;
C) branch acid-, static layering 1-4 hour, obtain the intermediate product alkyl benzene sulphonate (ABS) in alkyl benzene sulphonate (ABS) and vitriolic mixture, adding 10%--30% water under 50--70 ℃;
D) neutralization-under 35--70 ℃, use in the alkaline solution and c) product to pH value is 8-9, obtains alkylbenzene sulfonate;
E) composite-under 10--40 ℃, at d) add the alcohol of 5%--25% in the product, obtain the final product alkyl benzene sulfonate surfactant.
Above-mentioned steps a) in the raw material alkylbenzene of attaching most importance to;
Among the above-mentioned preparation method, step b) is preferably under 45-55 ℃ carries out;
Among the above-mentioned preparation method, step c) is preferably under 50-65 ℃ carries out;
Among the above-mentioned preparation method, alkali lye described in the step d) is sodium hydroxide or potassium hydroxide, and is preferably sodium hydroxide.The sodium hydroxide weight ratio of used alkyl benzene sulphonate (ABS) and 10-40% is 3: 1-1: 1;
Among the above-mentioned preparation method, alcohol is Virahol, propyl carbinol or isopropylcarbinol etc. described in the step e).
The above-mentioned alkyl benzene sulfonate surfactant of the present invention can be used as oil-displacing agent and also can be used as composite dose of application in tertiary oil recovery in the ternary composite driving.
Embodiment
The invention will be further described below in conjunction with specific embodiment.The preparation of embodiment 1 alkyl benzene sulfonate surfactant
Alkyl benzene sulfonate surfactant prepares according to the following steps:
A) select C
10-C
24Between heavy alkyl benzene be raw material;
B) sulfonation-under 45-50 ℃, with containing 20%-25% concentration SO
3Oleum, be that the ratio of 0.8-1.2 is with the heavy alkyl benzene sulfonation in oleum and heavy alkyl benzene weight ratio; Under sulfonation temperature, wore out 0.2-0.4 hour afterwards, obtain alkyl benzene sulphonate (ABS) and vitriolic mixture;
C) dividing acid--adding 15%-20% water under 60-65 ℃ in alkyl benzene sulphonate (ABS) and vitriolic mixture, static layering hour obtains the intermediate product alkyl benzene sulphonate (ABS);
D) neutralization-under 40-50 ℃, use in the sodium hydroxide solution of 20-25% and c) product to pH value is 8-9, obtains alkylbenzene sulfonate;
E) composite-under 20-30 ℃, at d) add 15%-20% Virahol in the product, obtain the final product alkyl benzene sulfonate surfactant.The performance of embodiment 2 alkyl benzene sulfonate surfactants
Utilize the prepared alkyl benzene sulfonate surfactant of embodiment 1, be mixed with a kind of three-component compound system that is suitable for the weak base alkyl benzene sulfonate surfactant, experiment showed, and obtained ultra low interfacial tension (see Table 1 and table 2) between this three-component compound system and the Daqing crude oil.Interfacial tension between table 1 weak base alkyl benzene sulfonate surfactant/alkali systems and the crude oil
Annotate: 1, surfactant concentration is 0.2%
| Na 2CO 3wt％ | Interfacial tension mN/m between compound system and crude oil |
| ????0.6 | ????8.9×10 -3 |
| ????0.8 | ????6.9×10 -3 |
| ????1.0 | ????2.3×10 -3 |
| ????1.2 | ????1.5×10 -3 |
| ????1.4 | ????7.8×10 -3 |
2, alkali is Na
2CO
3
3, crude oil is the well head gas-free oil, and water is for injecting water
4, experimental temperature is 45 ℃
5, testing tool: tensiometer, the interfacial tension between model 500 table 2 weak base alkyl benzene sulfonate surfactant/alkali systems and the crude oil are dripped in University of Texas's rotation
Annotate: 1, Na
2CO
3Concentration is 1.0%
| Tensio-active agent (wt%) | Interfacial tension mN/m between compound system and crude oil |
| ????0.05 | ????9.5×10 -3 |
| ????0.1 | ????5.4×10 -3 |
| ????0.2 | ????2.3×10 -3 |
| ????0.3 | ????3.5×10 -3 |
| ????0.4 | ????7.4×10 -3 |
2, crude oil is the well head gas-free oil, and water is fit to weak base alkyl benzene sulfonate surfactant three-component compound system laboratory core oil displacement experiment for injecting water embodiment 3
To be fit to weak base alkyl benzene sulfonate surfactant three-component compound system prescription: alkyl benzene sulfonate surfactant (0.3%)+Na
2CO
3(1.2%)+and polymkeric substance (1600mg/L), carried out oil displacement experiment 3 times, the rock core oil displacement experiment is the result show, and three-component compound system improves recovery ratio 18.1%, 19.9%, 22.2% respectively than water drive, and average recovery ratio reaches 20%.Under the same conditions, suitable with highly basic alkyl benzene sulfonate surfactant three-component compound system laboratory core oil displacement experiment.
More than by embodiment illustrated synthetic alkyl benzene sulfonate surfactant of the present invention under the weak base condition can and Daqing crude oil between forming ultra low interfacial tension, and three-component compound system and Daqing crude oil form ultra low interfacial tension in the surfactant concentration of broad and alkali concn scope, and this is enough to illustrate that this system will alleviate the injury of highly basic to the stratum.The rock core oil displacement experiment improves recovery ratio 20% than water drive, has illustrated that this system has the oil displacement efficiency suitable with the highly basic system, will apply for further ternary composite driving a kind of new tensio-active agent is provided.
Claims (9)
1. an alkyl benzene sulfonate surfactant it is characterized in that the average equivalent of described alkylbenzene sulfonate is 400-470, and alkyl phenyl is C
10-C
24Between the heavy alkyl benzene base, and the alcohol of composite 5%--25% in the alkylbenzene sulfonate obtains the final product alkyl benzene sulfonate surfactant.
2. alkyl benzene sulfonate surfactant according to claim 1 is characterized in that, described alcohol is propyl alcohol, Virahol, propyl carbinol or isopropylcarbinol.
3. the preparation method of the described alkyl benzene sulfonate surfactant of claim 1 may further comprise the steps:
A) select C
10-C
24Between alkylbenzene be raw material;
B) sulfonation-under 40-60 ℃, with containing 20%--30% concentration SO
3Oleum, be that the ratio of 0.5-1.5 is with the heavy alkyl benzene sulfonation in oleum and heavy alkyl benzene weight ratio; Under sulfonation temperature, wore out 0.2-1.5 hour afterwards, obtain alkyl benzene sulphonate (ABS) and vitriolic mixture;
C) branch acid-, static layering 1-4 hour, obtain the intermediate product alkyl benzene sulphonate (ABS) in alkyl benzene sulphonate (ABS) and vitriolic mixture, adding 10%--30% water under 50--70 ℃;
D) neutralization-under 35--70 ℃, use in the alkaline solution and c) product to pH value is 8-9, obtains alkylbenzene sulfonate;
E) composite-under 10--40 ℃, at d) add the alcohol of 5%--25% in the product, obtain the final product alkyl benzene sulfonate surfactant.
4. preparation method according to claim 3 is characterized in that, in the step a) raw material attach most importance to alkylbenzene or through the cutting heavy alkyl benzene.
5. preparation method according to claim 3 is characterized in that step b) is carried out under 45-55 ℃.
6. preparation method according to claim 3 is characterized in that, alkali lye described in the step d) is sodium hydroxide or potassium hydroxide etc.
7. preparation method according to claim 3 is characterized in that, the alcohol described in the step e) is Virahol, propyl carbinol or isopropylcarbinol.
8. the described alkyl benzene sulfonate surfactant of claim 1 is as being suitable for the application of weak base oil-displacing agent in tertiary oil recovery.
9. the described alkyl benzene sulfonate surfactant of claim 1 is as being suitable for composite dose of application in tertiary oil recovery in the weak base ternary composite driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01144907.1A CN1426833A (en) | 2001-12-21 | 2001-12-21 | Alkyl phenyl sulfonate surfactant, its preparation and application in tertiary oil extraction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01144907.1A CN1426833A (en) | 2001-12-21 | 2001-12-21 | Alkyl phenyl sulfonate surfactant, its preparation and application in tertiary oil extraction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1426833A true CN1426833A (en) | 2003-07-02 |
Family
ID=4677874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01144907.1A Pending CN1426833A (en) | 2001-12-21 | 2001-12-21 | Alkyl phenyl sulfonate surfactant, its preparation and application in tertiary oil extraction |
Country Status (1)
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|---|---|
| CN (1) | CN1426833A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333037C (en) * | 2005-12-01 | 2007-08-22 | 陕西科技大学 | Papermaking black liquor modified oil displacement agent |
| CN100386402C (en) * | 2004-12-01 | 2008-05-07 | 中国石油天然气股份有限公司 | Alkyl benzene sulfonate composition and preparing method |
| CN101455950B (en) * | 2007-12-12 | 2011-09-07 | 中国石油天然气股份有限公司 | Sulphonate surfactant preparation method and use thereof |
| CN107298971A (en) * | 2016-04-14 | 2017-10-27 | 中国石油化工股份有限公司 | A kind of high temperature resistant heavy alkylbenzene sulfonate system and preparation method thereof |
| WO2021093601A1 (en) | 2019-11-14 | 2021-05-20 | 中国石油化工股份有限公司 | Surfactant and preparation method therefor |
| WO2022002226A1 (en) | 2020-07-02 | 2022-01-06 | 中国石油化工股份有限公司 | Alkylaniline polyether benzene sulfonate and preparation method therefor |
-
2001
- 2001-12-21 CN CN01144907.1A patent/CN1426833A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386402C (en) * | 2004-12-01 | 2008-05-07 | 中国石油天然气股份有限公司 | Alkyl benzene sulfonate composition and preparing method |
| CN1333037C (en) * | 2005-12-01 | 2007-08-22 | 陕西科技大学 | Papermaking black liquor modified oil displacement agent |
| CN101455950B (en) * | 2007-12-12 | 2011-09-07 | 中国石油天然气股份有限公司 | Sulphonate surfactant preparation method and use thereof |
| CN107298971A (en) * | 2016-04-14 | 2017-10-27 | 中国石油化工股份有限公司 | A kind of high temperature resistant heavy alkylbenzene sulfonate system and preparation method thereof |
| CN107298971B (en) * | 2016-04-14 | 2020-01-17 | 中国石油化工股份有限公司 | High-temperature-resistant heavy alkylbenzene sulfonate system and preparation method thereof |
| WO2021093601A1 (en) | 2019-11-14 | 2021-05-20 | 中国石油化工股份有限公司 | Surfactant and preparation method therefor |
| WO2022002226A1 (en) | 2020-07-02 | 2022-01-06 | 中国石油化工股份有限公司 | Alkylaniline polyether benzene sulfonate and preparation method therefor |
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