CN104946229B - Composite synergist for fiber fracturing fluid and its preparation method and use method - Google Patents
Composite synergist for fiber fracturing fluid and its preparation method and use method Download PDFInfo
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- CN104946229B CN104946229B CN201510288032.0A CN201510288032A CN104946229B CN 104946229 B CN104946229 B CN 104946229B CN 201510288032 A CN201510288032 A CN 201510288032A CN 104946229 B CN104946229 B CN 104946229B
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/885—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C09K2208/08—Fiber-containing well treatment fluids
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Abstract
The invention provides a composite synergist for a fiber fracturing fluid, and a preparation method and a use method thereof. The composite synergist comprises: 10-20% of cationic surfactant (weight percentage), 5-10% of nonionic surfactant, 10-30% of long-chain alkyl ammonium salt, 20-40% of chlorine salt, 20-40% of low molecular weight alcohol and the balance of water. The preparation method of the composite synergist comprises the following steps: adding a cationic surfactant and a nonionic surfactant into a solvent formed by mixing water and low-molecular-weight alcohol, adding long-chain alkyl ammonium salt and chloride salt, fully stirring for dissolving, and cooling to obtain the composite synergist for the fiber fracturing fluid. The composite synergist is added into the fiber fracturing fluid, so that the dispersion and discharge of fibers in the fracturing fluid can be improved, the sand carrying capacity of the fiber fracturing fluid is further improved, the expansion damage of fracturing fluid filtrate to the stratum is reduced, and the flowback of gel breaking liquid is accelerated.
Description
Technical field
The present invention relates to a kind of composite synergist for fiber fracturing liquid and preparation method thereof and application methods, belong to stone
Oily production technique field.
Background technique
Fiber fracturing liquid technology is the New Fracturing Fluid occurred in recent years, using physical suspension improved effect fracturing fluid to branch
The suspending power of agent is supportted, and changes sedimentation principle of the fracturing propping agents in crack, reaching reduces thickening agent dosage, reduces reservoir
Injury improves the purpose that proppant lays efficiency.But it finds in production practice, since fiber disperses to need one in fracturing fluid
It fixes time, and dispersibility is bad, causes construction effect ideal not as good as laboratory.Have in the prior art using anion surface active
Report of the agent as dispersing agent for fibre, still, anionic surfactant are easily adsorbed in reservoir, invert reservoir wettability,
Strongly hydrophilic is unfavorable for the row of returning of working solution.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of composite synergists for fiber fracturing liquid
And preparation method thereof.The composite synergist can effectively improve dispersion and discharge of the fiber in fracturing fluid.
The object of the invention is also to provide a kind of application methods of above-mentioned composite synergist for fiber fracturing liquid.
To achieve the above object, the present invention provides a kind of composite synergists for fiber fracturing liquid, with weight percent
Than meter, raw material composition includes: cationic surfactant 10-20%, nonionic surfactant 5-10%, chain alkyl ammonium
Salt 10-30%, villaumite 20-40%, low molecular weight alcohol 20-40% and water surplus.
In the above-mentioned composite synergist for fiber fracturing liquid, it is preferable that the cationic surfactant includes
Cetylpyridinium chloride and/or chlorination octadecylpyridinium etc..If the cationic surfactant includes in the substance
Two kinds, then they can be mixed with arbitrary proportion.
In the above-mentioned composite synergist for fiber fracturing liquid, it is preferable that the nonionic surfactant includes
The poly- methyl ethylene oxide ether of alkylphenol-polyethenoxy, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether and polyoxyethylene nonyl phenyl second
The combination of one or more of alkene ether etc..If the nonionic surfactant include it is two or more in the substance,
They can be mixed with arbitrary proportion.
In the above-mentioned composite synergist for fiber fracturing liquid, it is preferable that the long chain alkylammonium salts include 12
~Cetyltrimethylammonium bromide, 12~octadecyl benzyl dimethyl ammonium chloride and 12~octadecyl benzyl three
The combination of one or more of ammonio methacrylate etc..If the long chain alkylammonium salts include it is two or more in the substance,
Then they can be mixed with arbitrary proportion.
In the above-mentioned composite synergist for fiber fracturing liquid, it is preferable that the villaumite includes ammonium chloride, sodium chloride
With the combination of one or more of potassium chloride etc..If the villaumite include it is two or more in the substance, they can be with
Arbitrary proportion mixing.
In the above-mentioned composite synergist for fiber fracturing liquid, it is preferable that the alcohol of the low molecular weight include methanol,
The combination of one or more of ethyl alcohol, ethylene glycol, isopropanol and propylene glycol etc..If the alcohol of the low molecular weight includes the object
Two or more in matter, then they can be mixed with arbitrary proportion.
In the present invention, above-mentioned all substances are commercial product.
Specific embodiment according to the present invention, it is preferable that the above-mentioned composite synergist for fiber fracturing liquid is logical
Cross what following methods were prepared:
(1) water and the alcohol of low molecular weight are mixed, obtains a mixed solvent；
(2) cationic surfactant and nonionic surfactant are added sequentially to the in the mixed solvent, and filled
Divide stirring and dissolving；
(3) long chain alkylammonium salts are added, and dissolution is sufficiently stirred；
(4) villaumite is added, and dissolution is sufficiently stirred, after cooling, obtains the compound increasing for fiber fracturing liquid
Imitate agent.
On the other hand, the present invention also provides a kind of preparation method of above-mentioned composite synergist for fiber fracturing liquid,
Itself the following steps are included:
(1) water and the alcohol of low molecular weight are mixed, obtains a mixed solvent；
(2) cationic surfactant and nonionic surfactant are added sequentially to the in the mixed solvent, and filled
Divide stirring and dissolving；
(3) long chain alkylammonium salts are added, and dissolution is sufficiently stirred；
(4) villaumite is added, and dissolution is sufficiently stirred, after cooling, obtains the compound increasing for fiber fracturing liquid
Imitate agent.
The present invention also provides a kind of application methods of above-mentioned composite synergist for fiber fracturing liquid comprising following
Step: in the pump note fracturing fluid step in fracturing fluid work progress, the composite synergist for being used for fiber fracturing liquid is led to
The proportioning pump of overmulling sand hopper is added in fiber fracturing liquid system, and after mixing, pump is injected into stratum.
In the application method of the above-mentioned composite synergist for fiber fracturing liquid, it is preferable that be used for described in addition
On the basis of the total weight of fiber fracturing liquid system after the composite synergist of fiber fracturing liquid, the answering for fiber fracturing liquid
The additive amount for closing synergist is 0.5-2.0%.
In the application method of the above-mentioned composite synergist for fiber fracturing liquid, the fiber fracturing liquid system can
Think the fiber fracturing liquid system of this field routine, for example, the fracturing fluid system that conventional water-soluble fibre and water mixes,
The fracturing fluid system can also further include some conventional use of additives.The type and dosage of these additives can be by
Those skilled in the art carry out conventional selection and adjustment, repeat no more herein.
The present invention has studied the deficiency of existing fiber fracturing liquid, and the scene of binding fiber fracturing fluid needs to provide one kind
For the composite synergist of fiber fracturing liquid, which can be by cationic surfactant, non-ionic surface active
The effective components such as agent, long chain alkylammonium salts, villaumite composition.It can provided by the present invention for the composite synergist of fiber fracturing liquid
Dispersion and discharge of the fiber in fracturing fluid are effectively improved, and then improves the prop-carrying capacity of fiber fracturing liquid, reduce fracturing fluid filter
Liquid is to the expansion injury on stratum, the row of returning of quickening breaking glue solution.
Specific embodiment
In order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood, now to skill of the invention
Art scheme carries out described further below, but should not be understood as that limiting the scope of the invention.
Embodiment 1
A kind of composite synergist for fiber fracturing liquid is present embodiments provided, is prepared by the following method:
It (1) is based on 100%, by 5% water and 30% by preparation by the total weight of the composite synergist of fiber fracturing liquid
Ethyl alcohol mixing, obtain a mixed solvent；
(2) fatty alcohol polyoxyethylene ether of 10% cetylpyridinium chloride and 10% is added sequentially to the mixing
In solvent, and dissolution is sufficiently stirred；
(3) 20% dodecylbenzyl trimethyl ammonium chloride and 5% Cetyltrimethylammonium bromide are added, and
Dissolution is sufficiently stirred；
(4) 20% potassium chloride is added, and dissolution is sufficiently stirred, after cooling, is obtained described for fiber fracturing liquid
Composite synergist.
Embodiment 2
A kind of composite synergist for fiber fracturing liquid is present embodiments provided, is prepared by the following method:
It (1) is based on 100%, by 5% water and 10% by preparation by the total weight of the composite synergist of fiber fracturing liquid
Methanol, 10% ethylene glycol mixing, obtain a mixed solvent；
(2) by 15% chlorination octadecylpyridinium and 5% fatty alcohol polyoxyethylene ether, 5% polyoxyethylene nonyl phenyl second
Alkene ether is added sequentially to the in the mixed solvent, and dissolution is sufficiently stirred；
(3) 15% cetyl benzyltrimethylammonium chloride and 15% cetyl trimethylammonium bromide are added,
And dissolution is sufficiently stirred；
(4) 20% ammonium chloride is added, and dissolution is sufficiently stirred, after cooling, is obtained described for fiber fracturing liquid
Composite synergist.
Embodiment 3
A kind of composite synergist for fiber fracturing liquid is present embodiments provided, is prepared by the following method:
It (1) is based on 100%, by 10% water and 20% by preparation by the total weight of the composite synergist of fiber fracturing liquid
Isopropanol mixing, obtain a mixed solvent；
(2) by 20% chlorination octadecylpyridinium and the poly- methyl ethylene oxide ether of 5% alkylphenol-polyethenoxy, 5%
Alkyl phenol polyoxyethylene ether is added sequentially to the in the mixed solvent, and dissolution is sufficiently stirred；
(3) 15% cetyl trimethylammonium bromide and 5% dodecylbenzyl trimethyl ammonium chloride are added, and
Dissolution is sufficiently stirred；
(4) 20% potassium chloride is added, and dissolution is sufficiently stirred, after cooling, is obtained described for fiber fracturing liquid
Composite synergist.
Experimental example 4
The composite synergist that above-described embodiment 3 provides is added to the water by weight percentage, it is molten to be configured to composite synergist
Liquid, composite synergist additional amount are shown in Table 1, and adding weight percent is 0.2%, 0.3%, 0.5% fiber.Fiber is grown respectively
3mm, 4mm, 5mm, for the ylxw-1 of Wanke Petroleum & Natural-Gas Technical Engineering Co., Ltd., Langfang City's production.Compound increasing in table 1
The weight percent concentration for imitating agent and fiber is counted on the basis of the total weight of the mixed liquor of composite synergist, fiber and water
It calculates.Test the fibre of the composite synergist of different weight percentage concentration, the fiber of different weight percentage concentration, different length
The dispersion rate of fiber in the case of dimension.Dispersion rate measuring method is as follows: having in plug graduated cylinder in 100mL and constant weight percentage is added
The fiber of composite synergistic agent solution and certain length, weight percent, and stir, plug graduated cylinder is placed in ultrasonic wave and is shaken
10min will still take out in the fiber got one's things ready in mixed fibrous suspension, and remaining fiber filter weighs.Calculate filter paper
It is dispersion rate that upper fiber, which accounts for and the weight percent of fiber in mixed liquor is added,.It is demonstrated experimentally that composite synergist can improve 10%
The fiber dispersion rate of left and right.Experimental result is as shown in table 1.
The comparison of 1 fiber dispersion rate of table
| Composite synergist, wt% | 0 | 0.5 | 1.0 | 2.0 |
| 3mm fiber, 0.2wt% | 81.5 | 95.6 | 98.6 | 99.8 |
| 3mm fiber, 0.3wt% | 80.1 | 94.2 | 98.1 | 99.1 |
| 3mm fiber, 0.5wt% | 78.3 | 90.5 | 97.2 | 98.6 |
| 4mm fiber, 0.2wt% | 80.5 | 95.1 | 98.3 | 99.5 |
| 4mm fiber, 0.3wt% | 79.4 | 93.5 | 97.8 | 98.6 |
| 4mm fiber, 0.5wt% | 78.1 | 92.4 | 96.4 | 97.7 |
| 5mm fiber, 0.2wt% | 79.3 | 94.6 | 98.1 | 98.8 |
| 5mm fiber, 0.3wt% | 78.7 | 92.8 | 97.5 | 97.6 |
| 5mm fiber, 0.5wt% | 78.2 | 91.7 | 95.5 | 96.3 |
Experimental example 5
The composite synergist that above-described embodiment 1~3 provides is added to the water by weight percentage respectively, is configured to compound increasing
Agent solution is imitated, composite synergist additional amount is shown in Table 2, according to SY/T5755-1995 standard testing these composite synergistic agent solutions
Surface tension.The weight percent concentration of composite synergist in table 2 is counted on the basis of the total weight of composite synergistic agent solution
It calculates.Experimental result is as shown in table 2.
2 composite synergist surface tension of table
| Composite synergist, wt% | 0.5 | 1.0 | 2.0 |
| The composite synergist surface tension of embodiment 1, mN/m | 23.2 | 19.1 | 18.9 |
| The composite synergist surface tension of embodiment 2, mN/m | 22.6 | 18.2 | 17.5 |
| The composite synergist surface tension of embodiment 3, mN/m | 22.8 | 18.6 | 18.3 |
The composite synergist for fiber fracturing liquid that Examples 1 to 3 provides it can be seen from the data in table 2 can
The surface tension of fracturing fluid is effectively reduced, improves its row's of returning ability.
Embodiment 6
Present embodiments provide a kind of application method of above-mentioned composite synergist for fiber fracturing liquid comprising following
Step: in the pump note fracturing fluid step in fracturing fluid work progress, the composite synergist for being used for fiber fracturing liquid is led to
The proportioning pump of overmulling sand hopper is added in fiber fracturing liquid system, after the composite synergist for fiber fracturing liquid is added
Fiber fracturing liquid system total weight on the basis of, the additive amount of the composite synergist for fiber fracturing liquid is 0.5-
2.0%, after mixing, pump is injected into stratum.Wherein, the fiber fracturing liquid system can be the fiber of this field routine
Fracturing fluid system, for example, the fracturing fluid system that conventional water-soluble fibre and water mixes, which can also be into
One step includes some conventional use of additives.The type and dosage of these additives can be carried out normal by those skilled in the art
The selection and adjustment of rule, repeat no more herein.
Claims (7)
1. a kind of composite synergist for fiber fracturing liquid, by weight percentage, raw material composition are as follows: cationic surface is living
Property agent 10-20%, nonionic surfactant 5-10%, long chain alkylammonium salts 10-30%, villaumite 20-40%, low molecular weight
Alcohol 20-40% and water surplus；
The cationic surfactant is cetylpyridinium chloride and/or chlorination octadecylpyridinium；
The nonionic surfactant is the poly- methyl ethylene oxide ether of alkylphenol-polyethenoxy, fatty alcohol polyoxyethylene ether and nonyl
The combination of one or more of phenol polyethenoxy ether；
The long chain alkylammonium salts are 12~octadecyl benzyl dimethyl ammonium chloride and 12~octadecyl benzyl three
The combination of one or more of ammonio methacrylate.
2. the composite synergist according to claim 1 for fiber fracturing liquid, wherein the villaumite include ammonium chloride,
The combination of one or more of sodium chloride and potassium chloride.
3. the composite synergist according to claim 1 for fiber fracturing liquid, wherein the alcohol of the low molecular weight includes
The combination of one or more of methanol, ethyl alcohol, ethylene glycol, isopropanol and propylene glycol.
4. the composite synergist according to claim 1 for fiber fracturing liquid, is to be prepared by the following method to obtain
:
(1) water and the alcohol of low molecular weight are mixed, obtains a mixed solvent；
(2) cationic surfactant and nonionic surfactant are added sequentially to the in the mixed solvent, and sufficiently stirred
Mix dissolution；
(3) long chain alkylammonium salts are added, and dissolution is sufficiently stirred；
(4) villaumite is added, and dissolution is sufficiently stirred, after cooling, obtains the composite synergist for fiber fracturing liquid.
5. a kind of preparation method of the described in any item composite synergists for fiber fracturing liquid of claim 1-4 comprising
Following steps:
(1) water and the alcohol of low molecular weight are mixed, obtains a mixed solvent；
(2) cationic surfactant and nonionic surfactant are added sequentially to the in the mixed solvent, and sufficiently stirred
Mix dissolution；
(3) long chain alkylammonium salts are added, and dissolution is sufficiently stirred；
(4) villaumite is added, and dissolution is sufficiently stirred, after cooling, obtains the composite synergist for fiber fracturing liquid.
6. a kind of application method of the described in any item composite synergists for fiber fracturing liquid of claim 1-4 comprising
Following steps: in the pump note fracturing fluid step in fracturing fluid work progress, by the composite synergistic for being used for fiber fracturing liquid
Agent is added in fiber fracturing liquid system by the proportioning pump of mulling bucket, and after mixing, pump is injected into stratum.
7. the application method of the composite synergist according to claim 6 for fiber fracturing liquid, wherein described in being added
It is described to be used for fiber fracturing liquid on the basis of total weight for the fiber fracturing liquid system after the composite synergist of fiber fracturing liquid
Composite synergist additive amount be 0.5-2.0%.
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| CN108300451B (en) * | 2018-04-08 | 2020-11-06 | 中国石油大学(华东) | A kind of nano-material composite strengthening jelly fracturing fluid and preparation method thereof |
| CN109536237A (en) * | 2019-01-08 | 2019-03-29 | 濮阳市万良石油科技发展有限公司 | A kind of synergist and preparation method thereof |
| CN116120907A (en) * | 2022-12-23 | 2023-05-16 | 宁波锋成纳米科技有限公司 | Nanometer activity synergist for tight oil fracturing and preparation method and application thereof |
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| CN102295919A (en) * | 2011-05-30 | 2011-12-28 | 西南石油大学 | High efficient fluoride-free cleanup additive used for acidifying |
| CN102925133A (en) * | 2012-10-16 | 2013-02-13 | 中国石油天然气股份有限公司 | Fracturing fluids and fracturing methods for controlling fracture extension height |
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| CN103013486B (en) * | 2012-10-16 | 2015-04-08 | 中国石油天然气股份有限公司 | Fracturing Fluids and Fracturing Methods for Improving Proppant Placement Efficiency in Fractured Fractures |
| CN104212436A (en) * | 2013-06-05 | 2014-12-17 | 中国石油天然气股份有限公司 | Fracturing fluid for mixed water fracturing |
| CN104405360B (en) * | 2014-10-27 | 2018-02-27 | 中石化胜利油田分公司采油工艺研究院 | A kind of fracturing process for improving fracturing fluid solid-carrying performance |
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| CN102295919A (en) * | 2011-05-30 | 2011-12-28 | 西南石油大学 | High efficient fluoride-free cleanup additive used for acidifying |
| CN102925133A (en) * | 2012-10-16 | 2013-02-13 | 中国石油天然气股份有限公司 | Fracturing fluids and fracturing methods for controlling fracture extension height |
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