CN109370551A - A kind of bubbling system with high surface spreading modulus - Google Patents
A kind of bubbling system with high surface spreading modulus Download PDFInfo
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- CN109370551A CN109370551A CN201811417609.3A CN201811417609A CN109370551A CN 109370551 A CN109370551 A CN 109370551A CN 201811417609 A CN201811417609 A CN 201811417609A CN 109370551 A CN109370551 A CN 109370551A
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- bubbling system
- modulus
- bubbling
- surface spreading
- cationic surfactant
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a kind of bubbling systems with high surface spreading modulus, it is made of cationic surfactant, nano particle, organic alcohol and water, wherein: cationic surfactant accounts for the 1.0% of bubbling system gross mass, nano particle accounts for the 0.5% of bubbling system gross mass, Organic Alcohol accounts for the 10% of cationic surfactant quality, and water supplies 100%.The invention has the beneficial effects that: bubbling system is prepared using cationic surfactant, Organic Alcohol and nano particle, after Organic Alcohol is adsorbed on nano grain surface, make nano particle that there is certain hydrophobicity, therefore nano particle can be adsorbed on gas-liquid interface, to increase the surface spreading modulus of bubbling system, after tested, the surface spreading modulus of the bubbling system can achieve 20mN/m or more.
Description
Technical field
The present invention relates to a kind of bubbling systems, and in particular to a kind of bubbling system with high surface spreading modulus belongs to
Technical field of oilfield chemistry.
Background technique
During oil reservoir development, since there are heterogeneity for oil reservoir, so will cause injection water breakthrough into so that recovery ratio compared with
It is low.
Foam is the dispersion because gas disperses to be formed in a liquid, and apparent viscosity is higher, there is good profile control effect
With raising recovery factor potential.
Under reservoir conditions, the dominant mechanism that foam generates includes: disconnected card, liquid film separation and liquid film lag.Wherein, card it is disconnected and
Liquid film separation is the major way for generating strong foam, and liquid film lag is usually only possible to produce weak foam.
In foam generating process, with the raising of surface spreading modulus, the generation lesser foam of partial size is easier, therefore, envelope
Stifled effect is better.
Summary of the invention
The purpose of the present invention is to provide a kind of bubbling systems with high surface spreading modulus.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of bubbling system with high surface spreading modulus, which is characterized in that by cationic surfactant, nanometer
Grain, organic alcohol and water composition, in which:
Aforesaid cations surfactant accounts for the 1.0% of bubbling system gross mass；
Aforementioned nano particle accounts for the 0.5% of bubbling system gross mass；
Aforementioned Organic Alcohol accounts for the 10% of cationic surfactant quality；
Aforementioned water supplies 100%.
A kind of bubbling system with high surface spreading modulus above-mentioned, which is characterized in that aforesaid cations surface-active
Agent is the compound system of dodecyl trimethyl ammonium chloride and octadecyltrimethylammonium chloride.
A kind of bubbling system with high surface spreading modulus above-mentioned, which is characterized in that aforementioned nano particle is nanometer
Zirconium oxide.
A kind of bubbling system with high surface spreading modulus above-mentioned, which is characterized in that aforementioned Organic Alcohol is Decanol
With the compound system of laruyl alcohol.
The invention has the beneficial effects that:
(1) bubbling system is prepared using cationic surfactant, Organic Alcohol and nano particle, Organic Alcohol, which is adsorbed on, to be received
Behind rice grain surface, make nano particle that there is certain hydrophobicity, therefore nano particle can be adsorbed on gas-liquid interface, thus
Increase the surface spreading modulus of bubbling system, after tested, the surface spreading modulus of the bubbling system can achieve 20mN/m with
On；
(2) it is less than the surfactant system by same concentrations by the foam partial size that paddling process generates by the bubbling system
The foam partial size of generation, therefore plugging effect is more preferable；
(3) the foam partial size generated when passing through porous media by the bubbling system is less than the surfactant by same concentrations
The foam partial size that system generates, and the pressure difference generated is higher than the surfactant system of same concentrations, therefore plugging effect is more
It is good.
Detailed description of the invention
Fig. 1 is the comparison diagram of the bubbling system and conventional blister system surface spreading modulus in embodiment 1；
Fig. 2 is the comparison diagram of the bubbling system and conventional blister system generation foam partial size in embodiment 1；
Fig. 3 is the comparison diagram of the bubbling system and conventional blister system generation foam partial size in embodiment 2；
Specific embodiment
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
Bubbling system provided by the invention with high surface spreading modulus by cationic surfactant, nano particle,
Organic alcohol and water composition.Wherein, cationic surfactant accounts for the 1.0% of bubbling system gross mass, and nano particle has accounted for foam
It is the 0.5% of gross mass, Organic Alcohol accounts for the 10% of cationic surfactant quality, remaining is water, and water supplies 100%.
Cationic surfactant is preferably answering for dodecyl trimethyl ammonium chloride and octadecyltrimethylammonium chloride
With system, through testing, after the two compounding, good frothing capacity can be not only obtained, but also the stability of foam can be improved.
Organic Alcohol is preferably the compound system of Decanol and laruyl alcohol, and through testing, after the two compounding, Organic Alcohol can be improved
In the adsorbance of nano grain surface, it is easier to change the wetability of nano particle.
Nano particle is preferably nano zircite, because nano zircite has good dispersion performance in water, is easy to make
It is standby to obtain bubbling system.
Preparation method:
Step1: being configured to concentrated solution for cationic surfactant with distilled water, for example, mass fraction be 30% it is molten
Liquid；
Step2: taking a part of concentrated solution, and Organic Alcohol is added, and forms compound system, is placed in ultrasound bath, to organic
After alcohol is completely dissolved, take out spare；
Step3: being configured to colloidal sol for nano particle with distilled water, is then added in water phase, is vibrated using ultrasound bath
Dispersion, takes out spare later；
Step4: the compound system of Organic Alcohol and cationic surfactant is added into nanoparticulate dispersion；
Step5: being added remaining part concentrated solution into mixed solution, adjusts cationic surfactant and Organic Alcohol
Ratio.
In the bubbling system, Organic Alcohol is adsorbed on the surface of nano particle, after Organic Alcohol is adsorbed on nano grain surface,
Make nano particle that there is certain hydrophobicity, therefore nano particle can be adsorbed on gas-liquid interface, to increase the blistering
The surface spreading modulus of system.
Embodiment 1
Dodecyl trimethyl ammonium chloride 7.0g, octadecyltrimethylammonium chloride 3.0g, nano zircite 5.0g, the positive last of the ten Heavenly stems
Alcohol 0.5g, laruyl alcohol 0.5g (Organic Alcohol account for cationic surfactant quality 10%), water (distilled water) 984g, amount to
1000.0g。
7.0g dodecyl trimethyl ammonium chloride and 3.0g octadecyltrimethylammonium chloride are matched with suitable distilled water
The concentrated solution that mass fraction is 30% or so is made, takes a part of concentrated solution, 0.5g Decanol and 0.5g laruyl alcohol is added, is formed
Compound system is placed in ultrasound bath, is vibrated under the conditions of 25 DEG C, after Decanol is completely dissolved, obtains Organic Alcohol and sun
The mixed solution of ionic surface active agent takes out spare.
5.0g nano zircite is configured to colloidal sol with suitable distilled water, is then added to the water, using ultrasound bath,
Vibrating dispersion 20min under the conditions of 25 DEG C, obtains nano zircite dispersion liquid, takes out later spare.
The mixed solution of Organic Alcohol and cationic surfactant is added into nano zircite dispersion liquid.
Under the conditions of 25 DEG C, the above-mentioned bubbling system of surface spreading rheometer measurement and conventional blister system (dodecane are used
The distilled water solution that the mass fraction of base trimethyl ammonium chloride is 1.0%) surface under the conditions of sinusoidal oscillation frequency is 0.2Hz
Expansion modulus, measurement result are shown in Fig. 1.
It will be seen from figure 1 that the surface spreading modulus of bubbling system provided by the invention is above under different deformation amount
20mN/m。
Under the conditions of 25 DEG C, above-mentioned bubbling system and conventional blister system (12 are measured using Waring Blender method
The mass fraction of alkyl trimethyl ammonium chloride be 1.0% distilled water solution) generate foam partial size.At room temperature, to stirring cup
Middle addition 100ml solution stirs 1min with the revolving speed of 3000rad/min, then counts the partial size for generating foam under the microscope
Distribution, statistical result are shown in Fig. 2.
Figure it is seen that the partial size for the foam that bubbling system provided by the invention generates is significantly less than conventional blister body
It is the partial size of the foam generated.
Embodiment 2
Inject the bubbling system (flow 0.5ml/min) in embodiment 1 simultaneously into the fill out sand tube that permeability is 2000mD
Foam is injected into the visualization plate with a thickness of 2um after output foam partial size is stablized with nitrogen (flow 1.0ml/min)
In, the partial size of foam is measured, measurement result is shown in Fig. 3.
From figure 3, it can be seen that the partial size for the foam that bubbling system provided by the invention generates is significantly less than conventional blister body
It is the partial size of the foam generated.
The pressure difference at fill out sand tube both ends is shown in Table 1 in experimentation.
1 fill out sand tube both ends pressure difference of table summarizes
| Bubbling system | Pressure difference/atm |
| High surface spreading modulus bubbling system | 0.682 |
| Conventional blister system | 0.471 |
As shown in Table 1, under identical injection condition, the foam generated by high surface spreading modulus bubbling system is in back-up sand
Flow differential pressure in pipe is bigger, i.e., high surface spreading modulus bubbling system can form better plugging effect, is conducive to improve
Recovery ratio.
By being compared above it is found that bubbling system provided by the invention surface spreading modulus with higher, can achieve
20mN/m or more, the foam partial size generated by the bubbling system by paddling process is less than the surfactant system by same concentrations
The foam partial size of generation, plugging effect can be more preferable.
Therefore, bubbling system provided by the invention can be used for foam flooding raising recovery ratio.
It should be noted that the above embodiments do not limit the invention in any form, it is all to use equivalent replacement or equivalent change
The mode changed technical solution obtained, falls within the scope of protection of the present invention.
Claims (4)
1. a kind of bubbling system with high surface spreading modulus, which is characterized in that by cationic surfactant, nanometer
Grain, organic alcohol and water composition, in which:
The cationic surfactant accounts for the 1.0% of bubbling system gross mass；
The nano particle accounts for the 0.5% of bubbling system gross mass；
The Organic Alcohol accounts for the 10% of cationic surfactant quality；
The water supplies 100%.
2. a kind of bubbling system with high surface spreading modulus according to claim 1, which is characterized in that it is described sun from
Sub- surfactant is the compound system of dodecyl trimethyl ammonium chloride and octadecyltrimethylammonium chloride.
3. a kind of bubbling system with high surface spreading modulus according to claim 1, which is characterized in that the nanometer
Particle is nano zircite.
4. a kind of bubbling system with high surface spreading modulus according to claim 1, which is characterized in that described organic
Alcohol is the compound system of Decanol and laruyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417609.3A CN109370551A (en) | 2018-11-26 | 2018-11-26 | A kind of bubbling system with high surface spreading modulus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417609.3A CN109370551A (en) | 2018-11-26 | 2018-11-26 | A kind of bubbling system with high surface spreading modulus |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038756A (en) * | 2015-07-08 | 2015-11-11 | 中国石油大学(华东) | Carbon dioxide foam system added with hydrophilic nanoparticles for oil displacement and preparation method for carbon dioxide foam system |
| US20160340569A1 (en) * | 2015-05-21 | 2016-11-24 | Massachusetts Institute Of Technology | Multifunctional particles for enhanced oil recovery |
| CN106753307A (en) * | 2016-11-10 | 2017-05-31 | 东北石油大学 | A kind of heat-resistant salt-resistant blowing agent system and preparation method for heavy crude reservoir thermal recovery |
| US20180282616A1 (en) * | 2013-08-22 | 2018-10-04 | Baker Hughes, A Ge Company, Llc | Aqueous downhole fluids having polymers and charged nanoparticles |
-
2018
- 2018-11-26 CN CN201811417609.3A patent/CN109370551A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180282616A1 (en) * | 2013-08-22 | 2018-10-04 | Baker Hughes, A Ge Company, Llc | Aqueous downhole fluids having polymers and charged nanoparticles |
| US20160340569A1 (en) * | 2015-05-21 | 2016-11-24 | Massachusetts Institute Of Technology | Multifunctional particles for enhanced oil recovery |
| CN105038756A (en) * | 2015-07-08 | 2015-11-11 | 中国石油大学(华东) | Carbon dioxide foam system added with hydrophilic nanoparticles for oil displacement and preparation method for carbon dioxide foam system |
| CN106753307A (en) * | 2016-11-10 | 2017-05-31 | 东北石油大学 | A kind of heat-resistant salt-resistant blowing agent system and preparation method for heavy crude reservoir thermal recovery |
Non-Patent Citations (1)
| Title |
|---|
| 王洋等: "Surface property and enhanced oil recovery study of foam aqueous dispersions comprised of surfactants–organic acids–nanoparticles", 《RSC ADVANCES》 * |
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Application publication date: 20190222 |