CN106118625A - A kind of surfactant fracturing fluid system and preparation method thereof - Google Patents
A kind of surfactant fracturing fluid system and preparation method thereof Download PDFInfo
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- CN106118625A CN106118625A CN201610436438.3A CN201610436438A CN106118625A CN 106118625 A CN106118625 A CN 106118625A CN 201610436438 A CN201610436438 A CN 201610436438A CN 106118625 A CN106118625 A CN 106118625A
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- fracturing fluid
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- dimethylamine oxide
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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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Abstract
The invention discloses a kind of surfactant fracturing fluid system, it is composed of the following components according to mass percent: long-chain alkylamide dimethylamine oxide 0.3%～0.5%, long-chain alkylamide glycine betaine 0.15%～0.4%, auxiliary agent 0.1%～0.2%, surplus is water.The invention also discloses the preparation method of this surfactant fracturing fluid system: be dissolved in water by auxiliary agent at normal temperatures and pressures, sequentially add long-chain alkylamide glycine betaine and long-chain alkylamide dimethylamine oxide, stir,.The surfactant fracturing fluid system of the present invention is low to formation damage, pollute little, need not add chemical agent and break glue, the row's of returning ability is strong, and fracturing fluid residue content is almost nil, and can effectively stablize clay, make the skin effect in fracturing process and oil layer pollution less, even close to no pollution, can more effectively improve oil well productivity, reach the purpose of oil-gas reservoir pressure break.The preparation method of the present invention is simple to operate and friendly to environment, and is suitable for industrialization large-scale production.
Description
Technical field
The invention belongs to oil field fracturing fluid technical field, be specifically related to a kind of surfactant fracturing fluid system, the present invention
Further relate to the preparation method of this surfactant fracturing fluid system.
Background technology
Fracturing fluid plays very important effect in oil exploitation, and fracturing fluid is made seam as a kind of and take the medium of sand,
Have transmission pressure, formed hydraulic fracture, carry proppant enter formation fracture effect, the improvement of its performance is the most all
It it is study hotspot.Preferably fracturing fluid should have sufficiently high viscosity when job execution, and after pressure break in certain time
Become low viscosity liquid and the row of being returned completely, stratum is not polluted and injures.
At present, domestic and international fracturing fluid thickener is the polymer such as hydroxypropyl guar, and these fracturing fluids substantially meet
The requirement of site operation, but still there is the solution of some problems demand, as Polymer Molecular Weight is big, disperse molten in water
Solution is poor, and water-insoluble is relatively many so that it is utilization rate is relatively low, and scene can only make up dissolubility difference band by improving dosage
The dose losses come.It addition, thickening agent and cross-linking agents define supramolecular, make water-soluble worse, after pressure break terminates,
There is quite a few water-insoluble and the most thoroughly break the supramolecular of glue and reside in formation fracture, making in-place permeability decline,
Affect fracturing reform effect.
Summary of the invention
It is an object of the invention to provide a kind of surfactant fracturing fluid system, solve surfactant of the prior art
The problem that fracturing fluid water solublity is poor.
It is a further object to provide the preparation method of this surfactant fracturing fluid system.
The technical solution adopted in the present invention is: a kind of surfactant fracturing fluid system, according to mass percent by with
Lower component forms:
Long-chain alkylamide dimethylamine oxide 0.3%～0.5%, long-chain alkylamide glycine betaine 0.15%～
0.4%, auxiliary agent 0.1%～0.2%, surplus is water.
The feature of the present invention also resides in:
Long-chain alkylamide dimethylamine oxide is laurylamide dimethylamine oxide, myristyl acyl
Amine dimethylamine oxide, hexadecyl amide dimethylamine oxide, octadecyl amide dimethylamine oxide
In a kind of or the most several mixture with arbitrary proportion.
Long-chain alkylamide betaine structure formula is as follows:
Wherein R is C12～C30 long chain hydrocarbon groups；X is integer, and 2≤x≤8.
Auxiliary agent is aerosil.
Another technical scheme of the present invention is:
The preparation method of a kind of surfactant fracturing fluid system, specifically comprises the following steps that at normal temperatures and pressures that auxiliary agent is molten
In water, sequentially add long-chain alkylamide glycine betaine and long-chain alkylamide dimethylamine oxide, stir, i.e.
Become.
The invention has the beneficial effects as follows: the surfactant fracturing fluid system of the present invention is low to formation damage, pollutes little, no
Needing to add chemical agent and break glue, the row's of returning ability is strong, and fracturing fluid residue content is almost nil, and can effectively stablize clay,
Make the skin effect in fracturing process and oil layer pollution less, even close to no pollution, can more effectively improve oil well productivity, reach
Purpose to oil-gas reservoir pressure break.The preparation method of surfactant fracturing fluid system of the present invention is simple to operate and friendly to environment, and is suitable for
Industrialization large-scale production.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further detail:
Embodiment 1
At normal temperatures and pressures the aerosil of 0.1% is dissolved in water, sequentially adds 0.15%Laurylamide dimethylamine oxide with 0.3%, stirs
Mix uniformly, surfactant fracturing fluid can be obtained.
Embodiment 2
At normal temperatures and pressures the aerosil of 0.15% is dissolved in water, sequentially adds 0.2%Myristyl amide dimethylamine oxide with 0.4%, stirs
Mix uniformly, surfactant fracturing fluid can be obtained.
Embodiment 3
At normal temperatures and pressures the aerosil of 0.2% is dissolved in water, sequentially adds 0.3%Hexadecyl amide dimethylamine oxide with 0.5%, stirs
Mix uniformly, surfactant fracturing fluid can be obtained.
Embodiment 4
At normal temperatures and pressures the aerosil of 0.2% is dissolved in water, sequentially adds 0.4%Octadecyl amide dimethylamine oxide with 0.5%, stirs
Mix uniformly, surfactant fracturing fluid can be obtained.
Embodiment 5
At normal temperatures and pressures the aerosil of 0.15% is dissolved in water, sequentially adds 0.3%With 0.4% octadecyl amide dimethylamine oxide and ten
The mixture of dialkyl amide dimethylamine oxide, stirs, and can obtain surfactant fracturing fluid.
Embodiment 6
At normal temperatures and pressures the aerosil of 0.20% is dissolved in water, sequentially adds 0.3%With 0.4% myristyl amide dimethylamine oxide and ten
The mixture of six alkyl amidopropyldimethyl amine oxides, stirs, and can obtain surfactant fracturing fluid.
The present invention use laurylamide dimethylamine oxide, myristyl amide dimethylamine oxide,
In hexadecyl amide dimethylamine oxide, octadecyl amide dimethylamine oxide a kind of or the most several with
The mixture of arbitrary proportion, it has a characteristic that it becomes cationic in acid medium, and at neutral or alkaline medium
In be then nonionic.In addition to there is general surfactant properties, also there is solubilising, thickening, the emulsifying of excellence, go
Dirty, foaming, surely bubble, softness, moisturizing, antistatic property, its zest is low, and good with the human body skin compatibility, physiological-toxicity is little, easily
Biodegradation, and have certain bactericidal property and mildew-proof function.
Using aerosil as auxiliary agent, it has a characteristic that porous, nonpoisonous and tasteless pollution-free, high temperature resistant.
It is a kind of fine inorganic chemicals product white, nontoxic, tasteless, unbodied, as anti-settling, thickening, the auxiliary agent of resist sagging.Its tool
There are the multiple effects such as good reinforcement, thickening, thixotroping, delustring, uvioresistant and sterilization.Its particle diameter is the least, therefore specific surface area
Greatly, superficial attractive forces is strong, and surface can be big, and chemical purity is high, dispersive property is good, has superior stability, reinforcing, thickening property
And thixotropy.
Use long-chain alkylamide glycine betaine, due to its both sexes structure, be respectively provided with excellent under the conditions of acidity and alkalescence
Stability, with various aniones, cation, nonionic and other amphoteric compound compatibilities, and can have excellent dissolubility, thickening
Property, hard water resistance property and biological degradability.
Claims (5)
1. a surfactant fracturing fluid system, it is characterised in that composed of the following components according to mass percent:
Long-chain alkylamide dimethylamine oxide 0.3%～0.5%, long-chain alkylamide glycine betaine 0.15%～0.4%,
Auxiliary agent 0.1%～0.2%, surplus is water.
A kind of surfactant fracturing fluid system the most according to claim 1, it is characterised in that described chain alkyl acyl
Amine dimethylamine oxide is laurylamide dimethylamine oxide, the oxidation of myristyl amide propyl-dimethyl
A kind of or the most several in amine, hexadecyl amide dimethylamine oxide, octadecyl amide dimethylamine oxide
Plant the mixture with arbitrary proportion.
A kind of surfactant fracturing fluid system the most according to claim 1, it is characterised in that described chain alkyl acyl
Amine betaine structure formula is as follows:
Wherein R is C12～C30 long chain hydrocarbon groups；X is integer, and 2≤x≤8.
A kind of surfactant fracturing fluid system the most according to claim 1, it is characterised in that described auxiliary agent is gas phase
Silicon dioxide.
5. the preparation method of surfactant fracturing fluid system described in claim 1-4, it is characterised in that concrete steps are such as
Under: at normal temperatures and pressures auxiliary agent is dissolved in water, sequentially adds long-chain alkylamide glycine betaine and long-chain alkylamide propyl group
Dimethyl amine, stirs,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610436438.3A CN106118625A (en) | 2016-06-17 | 2016-06-17 | A kind of surfactant fracturing fluid system and preparation method thereof |
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| CN201610436438.3A CN106118625A (en) | 2016-06-17 | 2016-06-17 | A kind of surfactant fracturing fluid system and preparation method thereof |
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Cited By (3)
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| CN106634930A (en) * | 2016-12-28 | 2017-05-10 | 陕西省石油化工研究设计院 | High-temperature-resistant and efficient foam drainage agent |
| CN108467611A (en) * | 2018-03-21 | 2018-08-31 | 湖北中烟工业有限责任公司 | A kind of water-mist-proof gloss oil |
| CN112342003A (en) * | 2019-08-07 | 2021-02-09 | 沧州中润化学助剂有限公司 | Viscoelastic surfactant for improving recovery ratio and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106634930A (en) * | 2016-12-28 | 2017-05-10 | 陕西省石油化工研究设计院 | High-temperature-resistant and efficient foam drainage agent |
| CN106634930B (en) * | 2016-12-28 | 2019-04-19 | 陕西省石油化工研究设计院 | A kind of high temperature high efficiency foam discharging agent |
| CN108467611A (en) * | 2018-03-21 | 2018-08-31 | 湖北中烟工业有限责任公司 | A kind of water-mist-proof gloss oil |
| CN112342003A (en) * | 2019-08-07 | 2021-02-09 | 沧州中润化学助剂有限公司 | Viscoelastic surfactant for improving recovery ratio and preparation method thereof |
| CN112342003B (en) * | 2019-08-07 | 2022-01-07 | 沧州中润化学助剂有限公司 | Preparation method of viscoelastic surfactant for improving recovery ratio |
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