CN110144196A - A kind of dispersing method of water-base drilling fluid nano silica - Google Patents
A kind of dispersing method of water-base drilling fluid nano silica Download PDFInfo
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- CN110144196A CN110144196A CN201910551165.0A CN201910551165A CN110144196A CN 110144196 A CN110144196 A CN 110144196A CN 201910551165 A CN201910551165 A CN 201910551165A CN 110144196 A CN110144196 A CN 110144196A
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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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/10—Nanoparticle-containing well treatment fluids
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Abstract
The present invention relates to a kind of dispersing methods of water-base drilling fluid nano silica, by being used in compounding under the synergistic effect with ultrasonic disperse for anionic surfactant, inorganic surfactant and high score subclass surfactant, dispersion performance of the nano silica in water-base drilling fluid is effectively increased.Nano silica in water-base drilling fluid can be distributed to by micro-or nano size using method provided by the invention, the reunion of nano silica is effectively controlled, nano material blocks micro-nano hole in stratum and microcrack is had laid a good foundation to solve.
Description
Technical field
The present invention relates to water-base drilling fluid fields, and in particular to a kind of dispersion side of water-base drilling fluid nano silica
Method.
Background technique
Since the partial size of nano silica is small, large specific surface area, surface-interface effect, small size with nano material
The advantages that effect, quantum size effect, while nano-silicon dioxide particle also has good chemical inertness, compatibility and colloid
Stability, therefore it is widely used.However there are a large amount of activity hydroxies on its surface, hydrophily is strong, make its easily formed agglomerate or
Second Aggregation is unfavorable for its dispersion in water-base drilling fluid, and then influences the structure and performance of nano silica.
Nano material dispersing method common at present is mainly physical dispersion and chemical treatment dispersion.Physical dispersion includes machine
Tool is dispersed with stirring to be dispersed with ultrasonic wave, wherein mechanical stirring dispersion be by by external equipment with strong agitating mode general
The method of grain suspended substance dispersion, ultrasonic wave dispersion are the effective ground resistances of localized hyperthermia's high pressure that cavitation caused by ultrasonic wave generates
Only or the method for unlocking particle agglomeration.Chemical treatment dispersion is that one or more dispersing agents are added in dispersion, is then divided
Powder is adsorbed in nanoparticle and declines its surface free energy, thus change particle and liquid phase medium, particle with it is interparticle
Interaction increases the repulsive force between particle, improves the stability of dispersion.However the above method is used alone and obtains
Nano material dispersion liquid, not can be well solved the agglomeration traits of nano material.
Chinese invention patent " a kind of dispersing method of nano material " (application number: 201810315014.0) discloses one kind
The dispersing method of nano material.After the present invention mixes surfactant and water, single-walled carbon nanotube is added thereto and is blended,
Blended liquid is obtained, blended liquid is then utilized respectively ultrasonic washing instrument and Ultrasonic cell smash is ultrasonically treated,
Single-walled carbon nanotube is dispersed.The dispersing method dispersion effect is significant, and method is simple, easy to operate, significant to save system
Standby time cost.But the patent of invention does not refer to the particle size of nano material after distribution, and used in the present invention point
Powder is different from.
Summary of the invention
The purpose of the invention is to provide a kind of dispersing method of water-base drilling fluid nano silica, for water base
Nano silica is easy to reunite in drilling fluid, and dispersion effect is bad, and provides a kind of water-base drilling fluid nano silica
Dispersing method can obtain the nano silicon dioxide dispersion that dispersion effect is good, performance is stable using this method.
To achieve the goals above, the present invention provides a kind of dispersing method of water-base drilling fluid nano silica,
Characterized by the following steps:
(1) anionic surfactant, inorganic surfactant and high score subclass surfactant are added to
In ionized water, 5-10min is stirred；
(2) nano silica, high-speed stirred 5-20min is added into step (1) solution；
(3) 1-20min is handled using solution of the ultrasonic wave to step (2), obtains Nano silicon dioxide dispersion system.
Wherein, the dosage of anionic surfactant, inorganic surfactant and high score subclass surfactant
Mass ratio (1-5): (0.5-5): (1-4), preferably (1-2): (0.5-2): (1.5-2.5).
The dosage of step (2) described nano silica is 1-5%, preferably 1.5-3%.
The anionic surfactant is neopelex, lauryl sodium sulfate and/or fatty alcohol acyl
One or more of mixtures of sodium sulphate.
The inorganic surfactant is one or more of mixing that calgon, sodium metasilicate and/or aluminic acid are received
Object.
The high score subclass surfactant is one or two kinds of mixtures of polyethylene glycol or Sodium Polyacrylate.
Revolving speed in step (1) described whipping process is 500-1000r/min, is turned in step (2) described whipping process
Speed is 8000-12000r/min.
The supersonic frequency of step (3) described ultrasonic wave is 30-50KHz, preferably 30-35KHz.
Compared with prior art, beneficial effects of the present invention:
1, the present invention using anionic surfactant, inorganic surfactant and high score subclass surfactant into
Row compounding disperses nano silica, and resulting nano silica good dispersion in water-base drilling fluid reaches micro-
Nano grade.
2, present invention employs sonic oscillations handles nano silicon dioxide dispersion, further decreases reunion one
Gravitation between the nano silica risen, so that nano silica be made preferably to be separated.
3, this dispersion method and process is simple, and operation is easy, and process for using is convenient, significantly saves the preparation cost, have compared with
Good economic benefit and social benefit.
4, the present invention is effectively controlled the reunion of nano silica, to solve the micro-nano in nano material closure stratum
Metre hole gap and microcrack are had laid a good foundation.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In order to achieve the object of the present invention, the present invention provides a kind of dispersion sides of water-base drilling fluid nano silica
Method, method includes the following steps:
(1) anionic surfactant, inorganic surfactant and high score subclass surfactant are added to
In ionized water, 5-10min is stirred；
(2) nano silica, high-speed stirred 5-20min is added into step (1) solution；
(3) 1-20min is handled using solution of the ultrasonic wave to step (2), obtains Nano silicon dioxide dispersion system.
In method of the present invention, anionic surfactant, inorganic surfactant and high score subclass table
The mass ratio (1-5) of the dosage of face activating agent: (0.5-5): (1-4), preferably (1-2): (0.5-2): (1.5-2.5).
Wherein, the anionic surfactant is neopelex, lauryl sodium sulfate and/or fat
One or more of mixtures of alcohol acyl sulfate sodium；Under preferable case, the anionic surfactant is detergent alkylate
Sodium sulfonate.
Wherein, the inorganic surfactant is the one or more that calgon, sodium metasilicate and/or aluminic acid are received
Mixture；Under preferable case, the inorganic surfactant is calgon.
Wherein, the high score subclass surfactant is one or two kinds of mixing of polyethylene glycol or Sodium Polyacrylate
Object；Under preferable case, the high score subclass surfactant is polyethylene glycol.
Above-mentioned various substances can be commercially available product, can also be made according to the method for this field routine, no longer superfluous here
It states.
The present invention will be described in detail by way of examples below, but is not intended to limit the present invention.
Embodiment 1
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) by dispersing agent neopelex, calgon and polyethylene glycol according to the mass ratio of 1:0.5:1.5
It is added in 300mL deionized water, 5min is stirred with revolving speed 800r/min；
(2) 2% nano silica is added into step (1) solution, 10min is stirred with revolving speed 9000r/min；
(3) it uses ultrasonic wave (supersonic frequency 30KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A1.
Embodiment 2
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) by dispersing agent neopelex, calgon and polyethylene glycol according to the mass ratio of 1:1.5:1.5
It is added in 300mL deionized water, 5min is stirred with revolving speed 900r/min；
(2) 2% nano silica is added into step (1) solution, 15min is stirred with revolving speed 10000r/min；
(3) it uses ultrasonic wave (supersonic frequency 32KHz) to handle 10min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A2.
Embodiment 3
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) dispersing agent neopelex, calgon and polyethylene glycol are added according to the mass ratio of 1:2:1.5
Enter into 300mL deionized water, 5min is stirred with revolving speed 1000r/min；
(2) 2% nano silica is added into step (1) solution, 15min is stirred with revolving speed 11000r/min；
(3) it uses ultrasonic wave (supersonic frequency 35KHz) to handle 20min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A3.
Embodiment 4
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) by dispersing agent neopelex, calgon and polyethylene glycol according to the mass ratio of 1.5:0.5:2
It is added in 300mL deionized water, 5min is stirred with revolving speed 800r/min；
(2) 2% nano silica is added into step (1) solution, 10min is stirred with revolving speed 9000r/min；
(3) it uses ultrasonic wave (supersonic frequency 32KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A4.
Embodiment 5
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) dispersing agent neopelex, calgon and polyethylene glycol are added according to the mass ratio of 1.5:1:2
Enter into 300mL deionized water, 8min is stirred with revolving speed 1000r/min；
(2) 2% nano silica is added into step (1) solution, 10min is stirred with revolving speed 10000r/min；
(3) it uses ultrasonic wave (supersonic frequency 32KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A5.
Embodiment 6
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) dispersing agent neopelex, calgon and polyethylene glycol are added according to the mass ratio of 1.5:2:2
Enter into 300mL deionized water, 10min is stirred with revolving speed 1000r/min；
(2) 2% nano silica is added into step (1) solution, 15min is stirred with revolving speed 10000r/min；
(3) it uses ultrasonic wave (supersonic frequency 35KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A6.
Embodiment 7
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) by dispersing agent neopelex, calgon and polyethylene glycol according to the mass ratio of 2:0.5:1.5
It is added in 300mL deionized water, to stir 5min with revolving speed 800r/min；
(2) 2% nano silica is added into step (1) solution, 10min is stirred with revolving speed 9000r/min；
(3) it uses ultrasonic wave (supersonic frequency 32KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A7.
Embodiment 8
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) dispersing agent neopelex, calgon and polyethylene glycol are added according to the mass ratio of 2:1.5:2
Enter into 300mL deionized water, to stir 10min with 1000r/min；
(2) 2% nano silica is added into step (1) solution, 10min is stirred with revolving speed 10000r/min；
(3) it uses ultrasonic wave (supersonic frequency 35KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A8.
Embodiment 9
The present embodiment indicates that the dispersing method of water-base drilling fluid nano silica.
(1) dispersing agent neopelex, calgon and polyethylene glycol are added according to the mass ratio of 2:2:2.5
Enter into 300mL deionized water, to stir 10min with 1000r/min；
(2) 2% nano silica is added into step (1) solution, 15min is stirred with revolving speed 10000r/min；
(3) it uses ultrasonic wave (supersonic frequency 35KHz) to handle 15min to the solution of step (2), obtains nanometer titanium dioxide
Silicon dispersion A9.
Comparative example 1
Disperse nano silica in the same manner as shown in Example 1, the difference is that: be not added any
Dispersing agent obtains Nano silicon dioxide dispersion system B1.
Comparative example 2
Disperse nano silica in the same manner as shown in Example 1, institute the difference is that: do not have at ultrasonic wave
Reason, obtains Nano silicon dioxide dispersion system B2.
Comparative example 3
Disperse nano silica in the same manner as shown in Example 1, institute the difference is that: anionic is only added
Surfactant sodium dodecyl base benzene sulfonic acid sodium salt obtains Nano silicon dioxide dispersion system B3.
Comparative example 4
Disperse nano silica in the same manner as shown in Example 1, institute the difference is that: inorganic table is only added
Face activating agent calgon obtains Nano silicon dioxide dispersion system B4.
Comparative example 5
Disperse nano silica in the same manner as shown in Example 1, institute the difference is that: high score subclass is only added
Surfactant polyethylene obtains Nano silicon dioxide dispersion system B5.
Test case 1
By the nano silica in the Nano silicon dioxide dispersion system A1-A9 and comparative example 1-5 in embodiment 1-9
Its particle diameter distribution, test result are surveyed with laser particle size analyzer (model: BT-9300LD) after 20 times of dispersion B1-B5 dilution
As shown in table 1.
Table 1
| Dispersion | Average grain diameter (nm) | Particle size range (nm) |
| A1 | 648.2 | 420-930 |
| A2 | 598.5 | 340-825 |
| A3 | 550.3 | 312-843 |
| A4 | 619.6 | 425-996 |
| A5 | 510.4 | 280-750 |
| A6 | 241.9 | 102-625 |
| A7 | 446.7 | 250-738 |
| A8 | 361.8 | 143-649 |
| A9 | 310.5 | 182-749 |
| B1 | 3124 | 1824-4250 |
| B2 | 823.5 | 420-1431 |
| B3 | 1624.2 | 743-3524 |
| B4 | 1347.8 | 541-3259 |
| B5 | 1465.3 | 625-3982 |
From 1 particle diameter distribution result of table:
The resulting Nano silicon dioxide dispersion system A6 dispersion effect of embodiment 6 is best, particle size range 102-625nm,
Average grain diameter is 241.9nm.Embodiment 1-5 resulting Nano silicon dioxide dispersion system A1-A5 and embodiment 7-9 is resulting
The dispersion effect of Nano silicon dioxide dispersion system A7-A9 is general, and average grain diameter is greater than 300nm.
Comparative example 1 is not since dispersing agent being added, so that Nano silicon dioxide dispersion system B1 dispersion effect is very poor, it is most of
Nano silica is reunited.
Comparative example 2 is not due to being ultrasonically treated, so that Nano silicon dioxide dispersion system B2 dispersion effect is general, dispersion
The average grain diameter of nano silica is greater than 800nm in system.
Comparative example 3 is due to being only added anionic surfactant neopelex, so that nano silica
Dispersion B3 dispersion effect is not that very well, the average grain diameter of nano silica is greater than 1600nm in dispersion.
Comparative example 4 is due to being only added inorganic surfactant calgon, so that Nano silicon dioxide dispersion system
B4 dispersion effect is not that very well, the average grain diameter of nano silica is greater than 1300nm in dispersion.
Comparative example 5 is due to being only added high score subclass surfactant polyethylene, so that Nano silicon dioxide dispersion system
B5 dispersion effect is not that very well, the average grain diameter of nano silica is greater than 1400nm in dispersion.
The preferred embodiment of the present invention has been described above in detail, and still, the present invention is not limited thereto.In skill of the invention
In art conception range, can with various simple variants of the technical solution of the present invention are made, including each technical characteristic with it is any its
Its suitable method is combined, and it should also be regarded as the disclosure of the present invention for these simple variants and combination, is belonged to
Protection scope of the present invention.
Claims (8)
1. a kind of dispersing method of water-base drilling fluid nano silica, it is characterised in that the following steps are included:
(1) anionic surfactant, inorganic surfactant and high score subclass surfactant are added to deionization
In water, 5-10min is stirred；
(2) nano silica, high-speed stirred 5-20min is added into step (1) solution；
(3) 1-20min is handled using solution of the ultrasonic wave to step (2), obtains Nano silicon dioxide dispersion system.
2. the method according to claim 1, wherein anionic surfactant, inorganic surfactant
With the mass ratio (1-5) of the dosage of high score subclass surfactant: (0.5-5): (1-4), preferably (1-2): (0.5-2):
(1.5-2.5)。
3. the method according to claim 1, wherein the dosage of step (2) described nano silica is 1-
5%, preferably 1.5-3%.
4. according to the method described in claim 1, it is characterized by: the anionic surfactant is detergent alkylate sulphur
One or more of mixtures of sour sodium, lauryl sodium sulfate and/or fatty alcohol acyl sulfate sodium.
5. according to the method described in claim 1, it is characterized by: the inorganic surfactant is calgon, silicon
One or more of mixtures that sour sodium and/or aluminic acid are received.
6. according to the method described in claim 1, it is characterized by: the high score subclass surfactant is polyethylene glycol or gathers
One or two kinds of mixtures of sodium acrylate.
7. according to the method described in claim 1, it is characterized by: the revolving speed in step (1) described whipping process is 500-
1000r/min, the revolving speed in step (2) described whipping process are 8000-12000r/min.
8. according to the method described in claim 1, it is characterized by: the supersonic frequency of step (3) described ultrasonic wave is 30-
50KHz, preferably 30-35 KHz.
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Cited By (4)
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| CN111087984A (en) * | 2019-12-03 | 2020-05-01 | 西南石油大学 | Nano plugging water-based drilling fluid and preparation method and application thereof |
| CN111826149A (en) * | 2020-07-20 | 2020-10-27 | 宁波锋成先进能源材料研究院 | Modified nano silicon dioxide and preparation method and application thereof |
| CN112226221A (en) * | 2020-10-19 | 2021-01-15 | 河南大学 | Nano silicon dioxide oil displacement agent and preparation method and application thereof |
| CN115449352A (en) * | 2022-09-20 | 2022-12-09 | 江阴市利伟轧辊印染机械有限公司 | Heat-conducting medium and hot roll |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111087984A (en) * | 2019-12-03 | 2020-05-01 | 西南石油大学 | Nano plugging water-based drilling fluid and preparation method and application thereof |
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| CN112226221A (en) * | 2020-10-19 | 2021-01-15 | 河南大学 | Nano silicon dioxide oil displacement agent and preparation method and application thereof |
| CN112226221B (en) * | 2020-10-19 | 2022-03-01 | 河南大学 | Nano silicon dioxide oil displacement agent and preparation method and application thereof |
| CN115449352A (en) * | 2022-09-20 | 2022-12-09 | 江阴市利伟轧辊印染机械有限公司 | Heat-conducting medium and hot roll |
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