CN116179177A - Preparation method of compound surfactant thickened oil microemulsion - Google Patents
Preparation method of compound surfactant thickened oil microemulsion Download PDFInfo
- Publication number
- CN116179177A CN116179177A CN202310438189.1A CN202310438189A CN116179177A CN 116179177 A CN116179177 A CN 116179177A CN 202310438189 A CN202310438189 A CN 202310438189A CN 116179177 A CN116179177 A CN 116179177A
- Authority
- CN
- China
- Prior art keywords
- solution
- surfactant
- oil
- compound
- compound surfactant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—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 surfactants
-
- 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
- C09K8/52—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Liquid Carbonaceous Fuels (AREA)
Abstract
The invention relates to the technical field of viscous oil emulsification and viscosity reduction, and discloses a preparation method of a compound surfactant viscous oil microemulsion, which comprises the following steps: (1) Respectively preparing APE-9, CAB-35 and BS-12 solutions with mass fractions of 0.5 percent; (2) Uniformly stirring the prepared APE-9 and CAB-35 solutions according to a compound volume ratio of 1:1 to prepare a compound surfactant A solution, and uniformly stirring the APE-9 and BS-12 solutions according to a compound volume ratio of 1:1 to prepare a compound surfactant B solution; (3) Adding a diesel thick oil mixed system with a dilution ratio of 0.5:1 into a beaker, adding the solution A, and stirring for 20min at the constant temperature of 55 ℃ and the stirring rotation speed of 1200-1500 r/min; and adding the solution B into the other beaker diesel oil thick oil mixed system, and stirring for 20min at the constant temperature of 55 ℃ and the stirring rotation speed of 1200-1500 r/min to finally obtain the oil-in-water type microemulsion of the two compound surfactants, wherein the compound surfactant thick oil microemulsion has the advantages of less surfactant consumption, low price, simple preparation method and high viscosity reduction rate of 99.53-99.68 percent, and can achieve the effect of improving the recovery ratio.
Description
Technical Field
The invention relates to the technical field of viscosity reduction of thickened oil, in particular to a preparation method of a compound surfactant thickened oil microemulsion.
Background
In recent years, due to the increasing global energy demand and the limited supply of conventional crude oil production chains, there has been a growing interest in the exploitation of unconventional petroleum. While China has rich thick oil resources, wherein the found low-grade storage capacity of the thick oil with the viscosity of more than 50000mPa ∙ s is 7 multiplied by 10 8 t. But because of deep heavy oil reservoir, high stratum temperature, high water mineralization, high crude oil density, high viscosity, high condensation point and salinityHigh grade, causing the exploitation to face the problems of large oil extraction process difficulty, high energy consumption, large yield loss, low economic benefit and the like. Among various thickened oil recovery methods, the emulsification viscosity-reducing method has been paid more attention to by more and more scientific researchers by virtue of the advantages of effectively reducing the viscosity of thickened oil in oil field recovery, improving the recovery rate of the oil field, optimizing the thickened oil recovery process and simplifying the post-thickened oil treatment process, and is a great breakthrough in the viscosity-reducing application of thickened oil in oil field, and has very important significance in improving the viscosity-reducing recovery efficiency of thickened oil.
The thin viscosity-reducing oil extraction is to inject thin oil into the bottom of an oil well through an oil pipe or an oil sleeve annulus, so that the thin oil is fully mixed with thick oil produced by a stratum, the viscosity of the thick oil, the pressure of a thick oil liquid column and the resistance in the thick oil flowing are reduced, the thick oil flow pattern can be changed after the thin oil is mixed, the functions of reducing the viscosity and the viscosity are achieved, but the consumption of the thin oil is increased sharply along with the annual increase of the thick oil exploitation yield, and meanwhile, the serious situation of low oil price and large thin thick oil difference is faced, and the increase of the thick oil productivity and the economic benefit of an oil field are severely limited; for emulsification viscosity reduction, as the exploitation is continued deeply, the stratum condition is worsened, and the microemulsion prepared by the conventional emulsification viscosity reduction method cannot bear a severe stratum environment for a long time, so that the viscosity reduction effect of the thickened oil is poor, and the exploitation efficiency is low. In summary, the invention provides a preparation method of a compound surfactant thickened oil microemulsion aiming at the advantages and disadvantages of the two thickened oil viscosity reduction methods.
Disclosure of Invention
Aiming at the problems of high difficulty in mining thickened oil, low economic benefit and the like in China at present, the invention provides a preparation method of a compound surfactant thickened oil microemulsion. The compound surfactant microemulsion prepared by the invention has the advantages of less surfactant dosage, low price, simple preparation method, high emulsification viscosity reduction rate and the like.
The invention is realized by the following technical scheme:
the compound surfactant used in the preparation method of the compound surfactant thick oil microemulsion is a nonionic surfactant and a zwitterionic surfactant, wherein the nonionic surfactant is APE-9, the zwitterionic surfactant is CAB-35 and BS-12, and the molecular structural formulas of the three surfactants are shown in figure 1.
The nonionic surfactant has high surface activity and high solubilization and washing performance; the amphoteric surfactant has good emulsifying property and dispersibility and good oil displacement performance.
The invention aims to disclose a preparation method of a compound surfactant thickened oil microemulsion, which comprises the following specific steps:
(1) Adding deionized water and quantitative APE-9 pure solution into a beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min, and standing for 8 hours until the surfactant is completely dissolved in water;
(2) Adding deionized water and a quantitative CAB-35 pure solution into a beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min, and standing for 8 hours until the surfactant is completely dissolved in water;
(3) Adding deionized water and quantitative BS-12 pure solution into a beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min, and standing for 8 hours until the surfactant is completely dissolved in water;
(4) Placing an APE-9 solution and a CAB-35 solution which are prepared quantitatively in the same beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min to prepare a compound surfactant A solution, and standing for 8 hours until the compound surfactant A is completely dissolved in water;
(5) Placing the APE-9 solution and the BS-12 solution which are prepared quantitatively in the same beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min to prepare a compound surfactant B solution, and standing for 8 hours until the compound surfactant B is completely dissolved in water;
(6) Adding quantitative diesel oil and thick oil into a beaker, adding a compound surfactant A solution, standing for 20min at a temperature of 50 ℃, and stirring for 30min under the condition of 1500-2000 r/min by using a stirrer;
(7) And adding quantitative diesel oil and thick oil into another beaker, adding a compound surfactant B solution, standing for 20min at a temperature of 50 ℃ under a temperature control condition, and stirring for 30min under a condition of 1500-2000 r/min by using a stirrer.
According to the invention, in the step (1), the mass fraction of the APE-9 solution is 0.5%.
According to the invention, in the step (2), the mass fraction of the CAB-35 solution is preferably 0.5%.
According to the preferred embodiment of the present invention, in the step (3), the mass fraction of the BS-12 solution is 0.5%.
According to the invention, in the step (4), the compound surfactant A solution is prepared by the compound volume ratio of 0.5% APE-9 solution to 0.5% CAB-35 solution being 1:1.
According to the invention, in the step (5), the compound surfactant B solution is prepared by the compound volume ratio of 0.5% APE-9 solution to 0.5% BS-12 solution being 1:1.
According to the invention, in the step (6), the blending ratio of diesel oil to thick oil is 0.5:1, and the oil-water ratio of the blending thick oil to the compound surfactant A is 3:7.
According to the invention, in the step (7), the blending ratio of diesel oil to thick oil is 0.5:1, and the oil-water ratio of the blending thick oil to the compound surfactant B is 3:7.
The invention has the technical characteristics and advantages that:
the preparation method of the compound surfactant thick oil microemulsion has the advantages of less surfactant consumption, low price, simple preparation method and good viscosity reducing effect of thick oil. Because of the large amount of asphaltene and colloid in the thickened oil, the asphaltene molecules form complex aggregates through surface-to-surface stacking and side-to-side stacking, and colloid molecules are overlapped and piled on the surface of the asphaltene to form aggregated particles, and the particles are mutually connected to form a staggered and complex aggregation structure, so that a high viscosity state of the thickened oil is caused. According to the invention, nonionic surfactant APE-9 and zwitterionic surfactants CAB-35 and BS-12 are used as monomers to prepare compound surfactant solutions A and B, the compound surfactant can cause the reduction of the relative molecular mass of structural units of asphaltene, the reduction of the total ring number and the aromatic ring number, the pi-pi acting force between aromatic hetero-condensed ring planes can be reduced, the stacking of aromatic sheets is destroyed, the sheet molecular structure becomes loose, and finally the particle size of particles deposited by asphaltene becomes small, so that the particles are not easy to gather together. The microemulsion prepared by uniformly mixing the compound surfactants A and B with the diesel thick oil mixing system can effectively reduce the viscosity of the thick oil and achieve the beneficial effect of improving the recovery ratio.
Drawings
The purpose of the attached drawings is as follows: in order to more clearly illustrate the embodiments and technical solutions of the present invention, the drawings that are required for the embodiments will be simply labeled and described below.
FIG. 1 is a molecular structural diagram of a surfactant.
In the figure: (a) is a nonionic surfactant APE-9 molecular structural formula; (b) Is a zwitterionic surfactant CAB-35 molecular structural formula; (c) Is a molecular structural formula of a zwitterionic surfactant BS-12.
FIG. 2 is a graph showing the viscosity reducing effect of the heavy oil microemulsion of the surfactant blend of example 1.
FIG. 3 is a graph showing the viscosity reducing effect of the heavy oil microemulsion of the compound surfactant of example 2.
Description of the embodiments
In order to make the technical solution in the present specification better understood, the technical solution in one or more embodiments of the present specification will be clearly and completely described in the following description with reference to the drawings in one or more embodiments of the present specification, and it is apparent that the described embodiments are only some embodiments of the specification, but not all embodiments, and other embodiments obtained by those skilled in the art without making creative efforts based on the one or more embodiments of the specification should fall within the scope of protection of the embodiments of the present specification.
Example 1: pure diesel oil, thick oil and compound surfactant are mixed simultaneously
(1) Taking nonionic surfactant APE-9, zwitterionic surfactants CAB-35 and BS-12 as monomers to prepare a compound surfactant, wherein the molecular structural formulas of the nonionic surfactant APE-9 and the zwitterionic surfactants CAB-35 and BS-12 are shown in figure 1;
(2) Setting the mass fraction of the surfactant to be 0.5%, introducing 5ml of APE-9 into 995ml of deionized water, stirring at 20-30 ℃ at a stirring speed of 400r/min, uniformly stirring for 10min, and standing for 8h until the surfactant is completely dissolved in water;
(3) Setting the mass fraction of the surfactant to be 0.5%, introducing 2.5ml of CAB-35 into 497.5ml of deionized water, stirring at 20-30 ℃ at 400r/min, uniformly stirring for 10min, and standing for 8h until the surfactant is completely dissolved in water;
(4) Setting the mass fraction of the surfactant to be 0.5%, introducing 2.5ml of BS-12 into 497.5ml of deionized water, stirring at 20-30 ℃ at the stirring speed of 400r/min, uniformly stirring for 10min, and standing for 8h until the surfactant is completely dissolved in water;
(5) The volume ratio of the 0.5 percent APE-9 solution to the 0.5 percent CAB-35 solution is set to be 1:1, and a compound surfactant A solution is prepared; taking 400ml of APE-9 solution and CAB-35 solution with the mass fraction of 0.5%, placing the APE-9 solution and the CAB-35 solution in the same beaker, uniformly stirring the APE-9 solution and the CAB-35 solution at the temperature of 20-30 ℃ for 10min at the stirring speed of 400r/min to prepare a compound surfactant A, and standing the compound surfactant A for 8 hours until the compound surfactant A is completely dissolved in water;
(6) Setting the compound volume ratio of 0.5% APE-9 solution to 0.5% BS-12 solution to be 1:1, and preparing a compound surfactant B solution; taking 400ml of APE-9 solution and BS-12 solution with the mass fraction of 0.5%, placing the APE-9 solution and the BS-12 solution in the same beaker, uniformly stirring the APE-9 solution and the BS-12 solution at the temperature of 20-30 ℃ for 10min at the stirring speed of 400r/min to prepare a compound surfactant B, and standing the compound surfactant B for 8 hours until the compound surfactant B is completely dissolved in water;
(7) Setting the mixing ratio of diesel oil to thick oil to be 0.5:1, taking 25ml of pure diesel oil and 50ml of thick oil, compounding 175ml of surfactant A solution, setting the oil-water ratio to be 3:7, simultaneously placing the mixture into a 500ml beaker, and stirring the mixture after standing the mixture in a water bath constant temperature tank for 20 min. Stirring the mixture by adopting an HJ-5 multifunctional stirrer at the stirring speed of 1500r/min for 30min at the constant temperature of 50 ℃;
(8) Setting the mixing ratio of diesel oil to thick oil to be 0.5:1, taking 25ml of pure diesel oil and 50ml of thick oil, compounding 175ml of surfactant B solution, setting the ratio of oil to water to be 3:7, placing the mixture into a 500ml beaker at the same time, and standing the mixture in a water bath constant temperature tank for 20min, and then starting stirring. Stirring the mixture by using an HJ-5 multifunctional stirrer at a stirring speed of 1500r/min for 30min at a constant temperature of 50 ℃.
Example 2: pure diesel oil and thick oil are mixed with a compound surfactant after being diluted
(1) Taking nonionic surfactant APE-9, zwitterionic surfactants CAB-35 and BS-12 as monomers to prepare a compound surfactant, wherein the molecular structural formulas of the nonionic surfactant APE-9 and the zwitterionic surfactants CAB-35 and BS-12 are shown in figure 1;
(2) Setting the mass fraction of the surfactant to be 0.5%, introducing 5ml of APE-9 into 995ml of deionized water, stirring at 20-30 ℃ at a stirring speed of 400r/min, uniformly stirring for 10min, and standing for 8h until the surfactant is completely dissolved in water;
(3) Setting the mass fraction of the surfactant to be 0.5%, introducing 2.5ml of CAB-35 into 497.5ml of deionized water, stirring at 20-30 ℃ at 400r/min, uniformly stirring for 10min, and standing for 8h until the surfactant is completely dissolved in water;
(4) Setting the mass fraction of the surfactant to be 0.5%, introducing 2.5ml of BS-12 into 497.5ml of deionized water, stirring at 20-30 ℃ at the stirring speed of 400r/min, uniformly stirring for 10min, and standing for 8h until the surfactant is completely dissolved in water;
(5) The volume ratio of the 0.5 percent APE-9 solution to the 0.5 percent CAB-35 solution is set to be 1:1, and a compound surfactant A solution is prepared; taking 400ml of APE-9 solution and CAB-35 solution with the mass fraction of 0.5%, placing the APE-9 solution and the CAB-35 solution in the same beaker, uniformly stirring the APE-9 solution and the CAB-35 solution at the temperature of 20-30 ℃ for 10min at the stirring speed of 400r/min to prepare a compound surfactant A solution, and standing the compound surfactant A solution for 8 hours until the compound surfactant A is completely dissolved in water;
(6) Setting the compound volume ratio of 0.5% APE-9 solution to 0.5% BS-12 solution to be 1:1, and preparing a compound surfactant B solution; taking 400ml of APE-9 solution and BS-12 solution with the mass fraction of 0.5%, placing the APE-9 solution and the BS-12 solution in the same beaker, uniformly stirring the APE-9 solution and the BS-12 solution at the temperature of 20-30 ℃ for 10min at the stirring speed of 400r/min to prepare a compound surfactant B solution, and standing the compound surfactant B solution for 8 hours until the compound surfactant B is completely dissolved in water;
(7) Setting the mixing ratio of diesel oil to thick oil to be 0.5:1, taking 30ml of pure diesel oil and 60ml of thick oil, placing the two in a 500ml beaker, standing in a water bath constant temperature tank for 15min, and stirring a diesel oil thick oil mixed system by using an HJ-5 multifunctional stirrer at a stirring rotating speed of 1500r/min for 20min at a constant temperature of 50 ℃;
(8) Adding 210ml of the compound surfactant A solution into a mixed system of diesel oil and thick oil, wherein the oil-water ratio is 3:7, standing for 20min at the constant temperature of 50 ℃, and stirring by using an HJ-5 multifunctional stirrer at the stirring speed of 1500r/min for 30min;
(9) Setting the mixing ratio of diesel oil to thick oil to be 0.5:1, taking 30ml of pure diesel oil and 60ml of thick oil, placing the two in a 500ml beaker, standing in a water bath constant temperature tank for 15min, and stirring a diesel oil thick oil mixed system by using an HJ-5 multifunctional stirrer at a stirring rotating speed of 1500r/min for 20min at a constant temperature of 50 ℃;
(10) Adding 210ml of the compound surfactant B solution into a diesel oil and thick oil mixed system, wherein the oil-water ratio is 3:7, standing for 20min at the constant temperature of 50 ℃, and stirring by using an HJ-5 multifunctional stirrer at the stirring speed of 1500r/min for 30min.
Example 3: viscous temperature test for flat plate rotor of thickened oil high-temperature high-pressure rheometer
Using an Anton Par MCR302 rotational rheometer (flat plate rotor system), at shear rateγ=5s -1 Temperature (temperature)TTest the corresponding shear stress of the thick oil at different temperatures under the condition of being in range of 40-100 ℃ (temperature rise) and 3 ℃/minτ 1 And shear viscosityη 1 (T) The viscosity of the thick oil obtained was 352000mPa ∙ s at 40 ℃.
Example 4: viscous oil emulsification viscosity reduction evaluation
An Anton Par MCR302 rotational rheometer (coaxial cylinder system) was used for examples 1 and 2 at shear viscosityγ=0.1~1000s -1 Temperature (temperature)TTest at 40 ℃ to obtain the corresponding shears of the compound surfactant thickened oil microemulsion of the example 1 and the example 2 under different shear ratesShear stressτ 3 And shear viscosityη 2 (γ) The following experimental data were obtained:
(1) In example 1, the results of Anton Par MCR302 rotational rheometer test and experiment show that both the two compound surfactants can form good thick oil microemulsion, and the viscosity of the compound surfactant a microemulsion is 1640 mPa ∙ s, the viscosity reduction rate is 99.53%, the viscosity of the compound surfactant B microemulsion is 1100 mPa ∙ s, the viscosity reduction rate is 99.68%, and the experimental result pair is shown in fig. 2.
(2) In example 2, the results of Anton Par MCR302 rotational rheometer test and experiment show that both the two compound surfactants can also form good thick oil microemulsion, and the viscosity of the compound surfactant a microemulsion is 1229 mPa ∙ s, the viscosity reduction rate is 99.68%, the viscosity of the compound surfactant B microemulsion is 1436mPa ∙ s, the viscosity reduction rate is 99.59%, and the experimental result pair is shown in fig. 3.
Wherein the viscosity reduction effect evaluation can be used for viscosity reduction rateR VR The expression is expressed as:R VR =((μ 0 -μ)/μ)×100%。
wherein:R VR for the viscosity reduction rate,%;μ o is the viscosity of the thick oil at 40 ℃, and mPa ∙ s;μthe viscosity is measured for the surfactant heavy oil microemulsion compounded at 40 ℃ and mPa ∙ s.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (9)
1. The preparation method of the compound surfactant thickened oil microemulsion is characterized by comprising the following specific steps of:
(1) Adding deionized water and quantitative APE-9 pure solution into a beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min, and standing for 8 hours until the surfactant is completely dissolved in water;
(2) Adding deionized water and a quantitative CAB-35 pure solution into a beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min, and standing for 8 hours until the surfactant is completely dissolved in water;
(3) Adding deionized water and quantitative BS-12 pure solution into a beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min, and standing for 8 hours until the surfactant is completely dissolved in water;
(4) Placing an APE-9 solution and a CAB-35 solution which are prepared quantitatively in the same beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min to prepare a compound surfactant A solution, and standing for 8 hours until the compound surfactant A is completely dissolved in water;
(5) Placing the APE-9 solution and the BS-12 solution which are prepared quantitatively in the same beaker, uniformly stirring at the temperature of 20-30 ℃ and the stirring rotation speed of 300-600 r/min to prepare a compound surfactant B solution, and standing for 8 hours until the compound surfactant B is completely dissolved in water;
(6) Adding quantitative diesel oil and thick oil into a beaker, adding a compound surfactant A solution, standing for 20min at a temperature of 50 ℃, and stirring for 30min under the condition of 1500-2000 r/min by using a stirrer;
(7) And adding quantitative diesel oil and thick oil into another beaker, adding a compound surfactant B solution, standing for 20min at a temperature of 50 ℃ under a temperature control condition, and stirring for 30min under a condition of 1500-2000 r/min by using a stirrer.
2. The method for preparing the compound surfactant thickened oil microemulsion according to claim 1, wherein in the step (1) of claim 1, the mass fraction of the APE-9 solution is 0.5%.
3. The method for preparing the heavy oil microemulsion of the compound surfactant according to claim 1, wherein in the step (2) of claim 1, the mass fraction of the CAB-35 solution is 0.5%.
4. The method for preparing the compound surfactant thickened oil microemulsion according to claim 1, wherein in the step (3) of claim 1, the mass fraction of the BS-12 solution is 0.5%.
5. The method for preparing the compound surfactant thickened oil microemulsion according to claim 1, wherein in the step (4) of claim 1, the compound surfactant A solution is prepared by the compound volume ratio of 0.5% APE-9 solution to 0.5% CAB-35 solution being 1:1.
6. The method for preparing the compound surfactant thickened oil microemulsion according to claim 1, wherein in the step (5) of claim 1, the compound surfactant B solution is prepared by the compound volume ratio of 0.5% APE-9 solution to 0.5% BS-12 solution being 1:1.
7. The method for preparing the compound surfactant thickened oil microemulsion according to claim 1, which is characterized in that in the step (6) of claim 1, the mixing ratio of diesel oil to thickened oil is 0.5:1, and the oil-water ratio of mixed thickened oil to compound surfactant A solution is 3:7.
8. The method for preparing the compound surfactant thickened oil microemulsion according to claim 1, which is characterized in that in the step (7) of claim 1, the mixing ratio of diesel oil to thickened oil is 0.5:1, and the oil-water ratio of mixed thickened oil to compound surfactant B solution is 3:7.
9. The method for preparing a heavy oil microemulsion of a compound surfactant according to claim 1, wherein the heavy oil microemulsion of two compound surfactants obtained according to the preparation step of claim 1 is prepared at a temperature ofT=40℃，γ=0.1~1000s -1 Is compounded under the condition ofThe viscosity of the surfactant A thick oil microemulsion is 1640 mPa ∙ s, the viscosity reduction rate is 99.53%, the viscosity of the compounded surfactant B microemulsion is 1100 mPa ∙ s, and the viscosity reduction rate is 99.68%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310438189.1A CN116179177A (en) | 2023-04-23 | 2023-04-23 | Preparation method of compound surfactant thickened oil microemulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310438189.1A CN116179177A (en) | 2023-04-23 | 2023-04-23 | Preparation method of compound surfactant thickened oil microemulsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116179177A true CN116179177A (en) | 2023-05-30 |
Family
ID=86434801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310438189.1A Pending CN116179177A (en) | 2023-04-23 | 2023-04-23 | Preparation method of compound surfactant thickened oil microemulsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116179177A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140909A (en) * | 2010-01-29 | 2011-08-03 | 中国石油化工股份有限公司 | Method for reducing viscosity of heavy oil by emulsification |
| CN104119851A (en) * | 2014-06-27 | 2014-10-29 | 黄爱先 | Novel viscosity reducer for viscous oil |
| CN106398676A (en) * | 2016-08-26 | 2017-02-15 | 大连百奥泰科技有限公司 | Temperature-tolerant salt-tolerant thickened oil emulsifying viscosity reducer, and applications thereof |
| CN108148566A (en) * | 2018-01-08 | 2018-06-12 | 中国石油化工股份有限公司 | A kind of ultralow interfacial tension heavy crude thinner and preparation method thereof |
| CN110423600A (en) * | 2019-06-20 | 2019-11-08 | 中国石油化工股份有限公司 | A kind of water-base viscosity-reducing agent and preparation method thereof for the efficient viscosity reduction of high viscous crude |
| CN111944508A (en) * | 2020-09-09 | 2020-11-17 | 中国石油天然气集团有限公司 | Emulsification viscosity-reduction oil-displacing agent, preparation method thereof and viscous oil viscosity-reduction oil-displacement fracturing method |
| CN112442350A (en) * | 2020-12-01 | 2021-03-05 | 山东德仕化工有限公司 | Thick oil cold recovery huff and puff viscosity reducer and preparation method and application thereof |
| CN115418211A (en) * | 2022-11-07 | 2022-12-02 | 山东东方盛嘉石油科技有限责任公司 | Viscosity-reducing oil displacement agent for thick oil and preparation method thereof |
-
2023
- 2023-04-23 CN CN202310438189.1A patent/CN116179177A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102140909A (en) * | 2010-01-29 | 2011-08-03 | 中国石油化工股份有限公司 | Method for reducing viscosity of heavy oil by emulsification |
| CN104119851A (en) * | 2014-06-27 | 2014-10-29 | 黄爱先 | Novel viscosity reducer for viscous oil |
| CN106398676A (en) * | 2016-08-26 | 2017-02-15 | 大连百奥泰科技有限公司 | Temperature-tolerant salt-tolerant thickened oil emulsifying viscosity reducer, and applications thereof |
| CN108148566A (en) * | 2018-01-08 | 2018-06-12 | 中国石油化工股份有限公司 | A kind of ultralow interfacial tension heavy crude thinner and preparation method thereof |
| CN110423600A (en) * | 2019-06-20 | 2019-11-08 | 中国石油化工股份有限公司 | A kind of water-base viscosity-reducing agent and preparation method thereof for the efficient viscosity reduction of high viscous crude |
| CN111944508A (en) * | 2020-09-09 | 2020-11-17 | 中国石油天然气集团有限公司 | Emulsification viscosity-reduction oil-displacing agent, preparation method thereof and viscous oil viscosity-reduction oil-displacement fracturing method |
| CN112442350A (en) * | 2020-12-01 | 2021-03-05 | 山东德仕化工有限公司 | Thick oil cold recovery huff and puff viscosity reducer and preparation method and application thereof |
| CN115418211A (en) * | 2022-11-07 | 2022-12-02 | 山东东方盛嘉石油科技有限责任公司 | Viscosity-reducing oil displacement agent for thick oil and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 刘萌: "聚氧乙烯醚型表面活性剂复配对稠油乳化及稳定性研究", 中国优秀硕士论文全文数据库（电子期刊）工程科技1辑, no. 6, pages 019 - 489 * |
| 王志新，等: "碱/两性-非离子表面活性剂乳化降黏实验研究", 应用化工, vol. 51, no. 11, pages 3230 - 3234 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1313563C (en) | Composition of clean fracturing fluid additives and method for fracturing stratum | |
| CN105219372A (en) | A kind of multi-functional composite fracturing liquid system | |
| CN110699058A (en) | Osmotic modified viscosity-reducing oil displacement agent for water-flooding thickened oil and preparation method thereof | |
| CN103265816B (en) | Low-softening-point emulsified asphalt for drilling fluid and preparation method thereof | |
| CN103265943A (en) | Cross-linking agent for low concentration guanidine gum pressing crack system and preparation technology thereof | |
| CN107118756B (en) | A kind of efficient thick-oil thinner and preparation method thereof | |
| CN105778882A (en) | Low-temperature gel breaker and preparation method thereof | |
| CN101875838B (en) | Oil-soluble viscosity reducer and preparation method thereof | |
| CN100529011C (en) | Surface activating agent for oil-field thick-oil well | |
| CN112322266A (en) | Multi-effect composite nitrogen foam profile control and flooding system and profile control and flooding method | |
| CN105238381A (en) | Functional composite-type emulsion-state polymer fracturing fluid and preparation method thereof | |
| CN102274701B (en) | Surfactant and preparation and application thereof | |
| CN1472276A (en) | High performance attenuant for thick oil and superthick oil | |
| CN102585792B (en) | Low-cost environment-friendly oil-soluble viscosity reducing agent for super heavy oil | |
| CN102093872A (en) | Clean fracturing fluid applied to hydraulic fracturing production increasing technology of oil-gas well | |
| CN104151574A (en) | Cement additive with temperature-sensitive thickening effect and preparation method of cement additive | |
| CN116179177A (en) | Preparation method of compound surfactant thickened oil microemulsion | |
| CN116120908B (en) | Preparation method of ultra-thick oil emulsified viscosity-reducing microemulsion | |
| CN103418437A (en) | Amphiphilic catalytic viscosity reducer for thickened oil aqua-thermolysis and preparation method thereof | |
| CN102604621B (en) | Novel high-efficiency composite viscosity reducer for super heavy oil | |
| CN104559996A (en) | Fast-swelling guar gum suitable for petroleum fracturing, and preparation method thereof | |
| CN115895632A (en) | Biological imbibition agent for low-permeability reservoir oil displacement and preparation method thereof | |
| CN107955594B (en) | High-temperature-resistant auxiliary steam-flooding oil displacement agent for thermal oil recovery and application thereof | |
| CN105622839A (en) | Environment-friendly nanometer emulsion fracturing fluid and preparation method thereof | |
| CN102229821A (en) | Micro-emulsified methanol diesel and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |