CN108048050A - A kind of graphitic lubricant and preparation method thereof - Google Patents
A kind of graphitic lubricant and preparation method thereof Download PDFInfo
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- CN108048050A CN108048050A CN201710565783.1A CN201710565783A CN108048050A CN 108048050 A CN108048050 A CN 108048050A CN 201710565783 A CN201710565783 A CN 201710565783A CN 108048050 A CN108048050 A CN 108048050A
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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
- C09K8/032—Inorganic additives
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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
- C09K2208/34—Lubricant additives
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Abstract
The invention discloses a kind of graphitic lubricant and preparation method thereof, which is made of according to mass fraction formula as below composition：20 30 parts of graphite, 10 12 parts of graphene, 26 parts of titanium dioxide powder, 13 parts of methylcellulose, 24 parts of calcium oxide, 1.5 3 parts of monoethanolamine, 36 parts of sodium metasilicate, 24 parts of gelatin, 57 parts of borax, 23 parts of ethylene vinyl acetate copolymer, 12 parts of 2 diethyl acetamidomalonate of acrylic acid, 45 parts of diacetone alcohol, 12 parts of tetrahydrofuran, 23 parts of propyl alcohol, 23 parts of dispersant, 50 70 parts of deionized water, the filter loss of lubricant is big caused by the graphitic lubricant solves existing preparation method, poor lubricity problem, the lubricant prepared by the present invention can improve borehole wall stability in application process, improve drilling fluid net structure intensity.
Description
Technical field
The present invention relates to technical field of lubricant, in particular to a kind of graphitic lubricant and preparation method thereof.
Background technology
With the continuous development of horizontal well, high angle hole and extended reach well technology, wellbore construction is to the lubricity of drilling fluid
It is it is required that higher and higher.Fluid lubricant and kollag can improve the lubricity of drilling fluid, and wherein solid lubricant has
Plastic beads, glass microballoon, graphite etc..Glass microballoon and plastic beads can roll to reduce friction, graphite between contact surface
Lamellar structure and self lubricity can preferably reduce the coefficient of sliding friction, these solid lubricants can make drilling rod and set
Physical separation is generated between the contact surface of pipe, drilling rod and the borehole wall, is not only able to reduce coefficient of friction, and metal can be reduced
Abrasion is to develop a kind of faster drilling fluid lubricating material in recent years.
The component and preparation process of lubricant are to influence two big factors of lubricant performance, the system of existing lubricant
Lubrication is prepared in re-dry after standby technique is typically mixed using graphite, surface lubricant and antifoaming agent in ethanol water
Agent, the filter loss of the lubricant prepared by the above method is big, drilling fluid net structure intensity is low, cause borehole wall stability it is poor,
Shaft bottom is not easy to clean.
The content of the invention
Problem present in for the above-mentioned prior art, the present invention provide a kind of graphitic lubricant and preparation method thereof, solution
The filter loss of lubricant caused by certainly existing preparation method is big, poor lubricity problem, is being answered by lubricant prepared by the present invention
With can improve in the process borehole wall stability, improve drilling fluid net structure intensity.
To achieve the above object, the present invention provides following technical solution：
A kind of graphitic lubricant is made of according to mass fraction formula as below composition：20-30 parts of graphite, graphene 10-12
It is part, 2-6 parts of titanium dioxide powder, 1-3 parts of methylcellulose, 2-4 parts of calcium oxide, 1.5-3 parts of monoethanolamine, 3-6 parts of sodium metasilicate, bright
2-4 parts of glue, 5-7 parts of borax, 2-3 parts of ethylene-vinyl acetate copolymer, 1-2 parts of acrylic acid-2-ethyl ethyl ester, diacetone alcohol
4-5 parts, 1-2 parts of tetrahydrofuran, 2-3 parts of propyl alcohol, 2-3 parts of dispersant, 50-70 parts of deionized water.
Further, it is made of according to mass fraction formula as below composition：20 parts of graphite, 10 parts of graphene, titanium dioxide powder 2
Part, 1 part of methylcellulose, 2 parts of calcium oxide, 1.5 parts of monoethanolamine, 3 parts of sodium metasilicate, 2 parts of gelatin, 5 parts of borax, ethyl vinyl acetate
2 parts of vinyl ester copolymers, 1 part of acrylic acid-2-ethyl ethyl ester, 4 parts of diacetone alcohol, 1 part of tetrahydrofuran, 2 parts of propyl alcohol, dispersant 2
Part, 50 parts of deionized water.
Further, it is made of according to mass fraction formula as below composition：25 parts of graphite, 11 parts of graphene, titanium dioxide powder 4
Part, 2 parts of methylcellulose, 3 parts of calcium oxide, 2 parts of monoethanolamine, 4 parts of sodium metasilicate, 3 parts of gelatin, 6 parts of borax, ethyl vinyl acetate second
2.5 parts of enoate copolymer, 1.5 parts of acrylic acid-2-ethyl ethyl ester, 4.5 parts of diacetone alcohol, 1.5 parts of tetrahydrofuran, 2.5 parts of propyl alcohol,
2.5 parts of dispersant, 60 parts of deionized water.
Further, it is made of according to mass fraction formula as below composition：30 parts of graphite, 12 parts of graphene, titanium dioxide powder 6
Part, 3 parts of methylcellulose, 4 parts of calcium oxide, 3 parts of monoethanolamine, 6 parts of sodium metasilicate, 4 parts of gelatin, 7 parts of borax, ethyl vinyl acetate second
3 parts of enoate copolymer, 2 parts of acrylic acid-2-ethyl ethyl ester, 5 parts of diacetone alcohol, 2 parts of tetrahydrofuran, 3 parts of propyl alcohol, 3 parts of dispersant,
70 parts of deionized water.
In addition, the present invention also provides a kind of preparation method of graphitic lubricant described above, which includes following step
Suddenly：
A), by titanium dioxide powder, methylcellulose, calcium oxide, monoethanolamine, sodium metasilicate, gelatin, borax, ethyl vinyl acetate
Vinyl ester copolymers, acrylic acid-2-ethyl ethyl ester, diacetone alcohol, tetrahydrofuran, propyl alcohol, dispersant, deionized water are sufficiently stirred
Dissolving, obtains solution；
B), under stiring, graphite and graphene are added in the solution that step a) obtains and are sufficiently mixed；
C) decentralized processing, is carried out to the mixed solution that step b) is obtained with ultrasonic equipment；
D) processing, is dried to the obtained solution of step c) with vacuum freeze drying and obtains graphitic lubricant.
Beneficial effects of the present invention are as follows：
The present invention adds in graphene as raw material in preparation process, then coordinates processing step of the present invention so that
For the lubricant of preparation when applied to drilling fluid, graphene can not only effectively promote the stream of drilling fluid with ultra micro graphite synergistic effect
Denaturation, moreover, graphene can form very strong net structure in drilling fluid, the net structure absorption borehole wall effectively reduces leak-off
Amount, is conducive to wellbore stability；Net structure absorption reduces abrasion on drill bit and drilling tool, increases drill bit and drilling tool service life；
The intensity of graphene net structure is high, improves drilling fluid carrying, the ability of suspension drilling cuttings, so as to reach more preferable cleaning shaft bottom
Purpose；The graphitic lubricant generates one layer of nano thin-film in drilling process, which can improve drilling fluid mud cake quality, from
And achieve the purpose that reduce drilling fluid dehydration, and then infiltration of the Free water into stratum in drilling fluid is reduced, avoid water sensitivity oily
Gas storage stratum is contaminated, and has good effect to protection oil-gas Layer.
Specific embodiment
In order to which those skilled in the art is made to more fully understand technical scheme, below to technical scheme into
Clear, the complete description of row, based on the embodiment in the application, those of ordinary skill in the art are not making creative work
On the premise of other similar embodiments for being obtained, should all belong to the scope of the application protection.
Embodiment one：
A kind of graphitic lubricant is made of according to mass fraction formula as below composition：20-30 parts of graphite, graphene 10-12
It is part, 2-6 parts of titanium dioxide powder, 1-3 parts of methylcellulose, 2-4 parts of calcium oxide, 1.5-3 parts of monoethanolamine, 3-6 parts of sodium metasilicate, bright
2-4 parts of glue, 5-7 parts of borax, 2-3 parts of ethylene-vinyl acetate copolymer, 1-2 parts of acrylic acid-2-ethyl ethyl ester, diacetone alcohol
4-5 parts, 1-2 parts of tetrahydrofuran, 2-3 parts of propyl alcohol, 2-3 parts of dispersant, 50-70 parts of deionized water.
In addition, the present invention also provides the preparation methods of this kind of graphitic lubricant, comprise the following steps：
A), by titanium dioxide powder, methylcellulose, calcium oxide, monoethanolamine, sodium metasilicate, gelatin, borax, ethyl vinyl acetate
Vinyl ester copolymers, acrylic acid-2-ethyl ethyl ester, diacetone alcohol, tetrahydrofuran, propyl alcohol, dispersant, deionized water are sufficiently stirred
Dissolving, obtains solution；
B), under stiring, graphite and graphene are added in the solution that step a) obtains and are sufficiently mixed；
C) decentralized processing, is carried out to the mixed solution that step b) is obtained with ultrasonic equipment；
D) processing, is dried to the obtained solution of step c) with vacuum freeze drying and obtains graphitic lubricant.
Embodiment two：
A kind of preparation method of graphitic lubricant, comprises the following steps：
A), by 2 parts of titanium dioxide powder, 1 part of methylcellulose, 2 parts of calcium oxide, 1.5 parts of monoethanolamine, 3 parts of sodium metasilicate, bright
2 parts of glue, 5 parts of borax, 2 parts of ethylene-vinyl acetate copolymer, 1 part of acrylic acid-2-ethyl ethyl ester, 4 parts of diacetone alcohol, tetrahydrochysene
1 part of furans, 2 parts of propyl alcohol, 2 parts of dispersant, 50 parts of deionized water are sufficiently stirred dissolving, obtain solution；
B), under stiring, 20 parts of graphite, 10 parts of graphene are added in the solution that step a) obtains and are sufficiently mixed；
C) decentralized processing, is carried out to the mixed solution that step b) is obtained with ultrasonic equipment；
D) processing, is dried to the obtained solution of step c) with vacuum freeze drying and obtains graphitic lubricant.
Embodiment three：
A kind of preparation method of graphitic lubricant, comprises the following steps：
A), by 4 parts of titanium dioxide powder, 2 parts of methylcellulose, 3 parts of calcium oxide, 2 parts of monoethanolamine, 4 parts of sodium metasilicate, gelatin
3 parts, 6 parts of borax, 2.5 parts of ethylene-vinyl acetate copolymer, 1.5 parts of acrylic acid-2-ethyl ethyl ester, 4.5 parts of diacetone alcohol,
1.5 parts of tetrahydrofuran, 2.5 parts of propyl alcohol, 2.5 parts of dispersant, 60 parts of deionized water are sufficiently stirred dissolving, obtain solution；
B), under stiring, 25 parts of graphite, 11 parts of graphene are added in the solution that step a) obtains and are sufficiently mixed；
C) decentralized processing, is carried out to the mixed solution that step b) is obtained with ultrasonic equipment；
D) processing, is dried to the obtained solution of step c) with vacuum freeze drying and obtains graphitic lubricant.
Example IV：
A kind of preparation method of graphitic lubricant, comprises the following steps：
A), by 6 parts of titanium dioxide powder, 3 parts of methylcellulose, 4 parts of calcium oxide, 3 parts of monoethanolamine, 6 parts of sodium metasilicate, gelatin
4 parts, 7 parts of borax, 3 parts of ethylene-vinyl acetate copolymer, 2 parts of acrylic acid-2-ethyl ethyl ester, 5 parts of diacetone alcohol, tetrahydrochysene furan
Mutter 2 parts, 3 parts of propyl alcohol, 3 parts of dispersant, 70 parts of deionized water be sufficiently stirred dissolving, obtain solution；
B), under stiring, 30 parts of graphite, 12 parts of graphene are added in the solution that step a) obtains and are sufficiently mixed；
C) decentralized processing, is carried out to the mixed solution that step b) is obtained with ultrasonic equipment；
D) processing, is dried to the obtained solution of step c) with vacuum freeze drying and obtains graphitic lubricant.
Moreover, it will be appreciated that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
Using specification as an entirety, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of graphitic lubricant, which is characterized in that be made of according to mass fraction formula as below composition：20-30 parts of graphite, stone
Black alkene 10-12 parts, 2-6 parts of titanium dioxide powder, 1-3 parts of methylcellulose, 2-4 parts of calcium oxide, 1.5-3 parts of monoethanolamine, silicic acid
3-6 parts of sodium, 2-4 parts of gelatin, 5-7 parts of borax, 2-3 parts of ethylene-vinyl acetate copolymer, acrylic acid-2-ethyl ethyl ester 1-2
Part, 4-5 parts of diacetone alcohol, 1-2 parts of tetrahydrofuran, 2-3 parts of propyl alcohol, 2-3 parts of dispersant, 50-70 parts of deionized water.
2. graphitic lubricant according to claim 1, which is characterized in that according to mass fraction by formula as below composition group
Into：20 parts of graphite, 10 parts of graphene, 2 parts of titanium dioxide powder, 1 part of methylcellulose, 2 parts of calcium oxide, 1.5 parts of monoethanolamine, silicon
Sour 3 parts of sodium, 2 parts of gelatin, 5 parts of borax, 2 parts of ethylene-vinyl acetate copolymer, 1 part of acrylic acid-2-ethyl ethyl ester, two acetone
4 parts of alcohol, 1 part of tetrahydrofuran, 2 parts of propyl alcohol, 2 parts of dispersant, 50 parts of deionized water.
3. graphitic lubricant according to claim 1, which is characterized in that according to mass fraction by formula as below composition group
Into：25 parts of graphite, 11 parts of graphene, 4 parts of titanium dioxide powder, 2 parts of methylcellulose, 3 parts of calcium oxide, 2 parts of monoethanolamine, silicic acid
4 parts of sodium, 3 parts of gelatin, 6 parts of borax, 2.5 parts of ethylene-vinyl acetate copolymer, 1.5 parts of acrylic acid-2-ethyl ethyl ester, dipropyl
4.5 parts of keto-alcohol, 1.5 parts of tetrahydrofuran, 2.5 parts of propyl alcohol, 2.5 parts of dispersant, 60 parts of deionized water.
4. graphitic lubricant according to claim 1, which is characterized in that according to mass fraction by formula as below composition group
Into：30 parts of graphite, 12 parts of graphene, 6 parts of titanium dioxide powder, 3 parts of methylcellulose, 4 parts of calcium oxide, 3 parts of monoethanolamine, silicic acid
6 parts of sodium, 4 parts of gelatin, 7 parts of borax, 3 parts of ethylene-vinyl acetate copolymer, 2 parts of acrylic acid-2-ethyl ethyl ester, diacetone alcohol 5
Part, 2 parts of tetrahydrofuran, 3 parts of propyl alcohol, 3 parts of dispersant, 70 parts of deionized water.
A kind of 5. preparation method of graphitic lubricant as described in claim 1-4 is any, which is characterized in that the preparation method bag
Include following steps：
A), by titanium dioxide powder, methylcellulose, calcium oxide, monoethanolamine, sodium metasilicate, gelatin, borax, ethene-vinyl acetate
Ester copolymer, acrylic acid-2-ethyl ethyl ester, diacetone alcohol, tetrahydrofuran, propyl alcohol, dispersant, deionized water are sufficiently stirred molten
Solution, obtains solution；
B), under stiring, graphite and graphene are added in the solution that step a) obtains and are sufficiently mixed；
C) decentralized processing, is carried out to the mixed solution that step b) is obtained with ultrasonic equipment；
D) processing, is dried to the obtained solution of step c) with vacuum freeze drying and obtains graphitic lubricant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710565783.1A CN108048050A (en) | 2017-07-10 | 2017-07-10 | A kind of graphitic lubricant and preparation method thereof |
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| CN201710565783.1A CN108048050A (en) | 2017-07-10 | 2017-07-10 | A kind of graphitic lubricant and preparation method thereof |
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Cited By (3)
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| CN110746947A (en) * | 2018-07-24 | 2020-02-04 | 中石化石油工程技术服务有限公司 | Tackifier for drilling fluid and drilling fluid |
| CN112226215A (en) * | 2019-07-15 | 2021-01-15 | 中石化石油工程技术服务有限公司 | Lubricating anti-sloughing agent for drilling fluid |
| CN114015423A (en) * | 2021-11-09 | 2022-02-08 | 北京大学 | Mixed drilling mud and method for improving underground compact oil and gas reservoir |
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Cited By (3)
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| CN110746947A (en) * | 2018-07-24 | 2020-02-04 | 中石化石油工程技术服务有限公司 | Tackifier for drilling fluid and drilling fluid |
| CN112226215A (en) * | 2019-07-15 | 2021-01-15 | 中石化石油工程技术服务有限公司 | Lubricating anti-sloughing agent for drilling fluid |
| CN114015423A (en) * | 2021-11-09 | 2022-02-08 | 北京大学 | Mixed drilling mud and method for improving underground compact oil and gas reservoir |
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Application publication date: 20180518 |