CN104650841B - A kind of zwitterion compound surfactant oil displacement agent - Google Patents
A kind of zwitterion compound surfactant oil displacement agent Download PDFInfo
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- CN104650841B CN104650841B CN201310597196.2A CN201310597196A CN104650841B CN 104650841 B CN104650841 B CN 104650841B CN 201310597196 A CN201310597196 A CN 201310597196A CN 104650841 B CN104650841 B CN 104650841B
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
Abstract
The present invention relates to a kind of anion/cation compound surfactant oil displacement agents；Anionic surfactant, cationic surfactant, nonionic surfactant, small molecule alcohol cosurfactant and deionized water are pressed（4‑10）：（0.5‑1）：（2‑5）：（2‑5）：（1‑2）Mass ratio compounded；This oil displacement agent not only has low surface tension and ultralow oil water interfacial tension, and it is 0.15% oil displacement agent aqueous solution also to have good emulsion stability, compound concentration to crude oil, is tested using hundred Ou Lin Sigma701 type surface tension instruments of Sweden, 25 DEG C of test temperature；Low surface tension evaluation criterion is surface tension≤38mN/m.
Description
Technical field
The invention belongs to oil field surfactant oil displacement field, more particularly to a kind of compound surface-active of zwitterion
Agent oil displacement agent.
Background technology
In traditional concept, the compounding of cationic surface active agent and anionic surfactant in aqueous solution due to
Interaction will produce precipitation or cotton-shaped complex compound, to generate negative effect or even surfactant is made to lose surface-active.It grinds
Study carefully discovery, anion/cation surfactant compound system has very high surface-active under certain condition, shows greatly
Synergistic effect.The compounding of anion/cation surfactant can be such that its surface-active has larger due to electrical function strong between the two
Raising.Anion/cation Surfactant Mixing Systems have the following advantages：1. critical micelle concentration CMC can be reduced effectively；②
The solvability to nonpolarity or micropolar organic matter can be greatly improved；3. due to charge effect, the table of compound surfactant
Face activity increases, and increases in the film compactness that oil/water interface is formed, therefore emulsifying capacity enhances；4. improving the profit to the surface of solids
Wet performance；5. effectively reducing oil water interfacial tension.
Although anion/cation Surfactant Mixing Systems have splendid synergistic effect, due to strong charge effect,
It is easy to generate precipitation and flocculation.It is multiple that a kind of novel anion/cation has been prepared by formula and technological design in the present invention
Mould assembly surfactant flooding agent, the compound system is stable, with excellent synergistic effect, has had both low surface tension, ultralow
The multiple action of oil water interfacial tension, high emulsibility energy and excellent wetting, indoor simulation rock core displacement test is the result shows that can have
Effect improves indoor recovery ratio.
By to the compounding of anion surfactant, cationic surfactant, nonionic surfactant prepare it is cloudy/
Cationic compound surfactant oil displacement agent.There is this method kinds of surfactants selection and compositing range to change wide, system
The features such as simple for process, it is easy to apply in actual industrial and promotes.
Invention content
It is an object of the present invention to provide a kind of anion/cation compound surfactant oil displacement agents.What this preparation method obtained
Surfactant Mixing Systems have the multiple of low surface tension, ultralow oil water interfacial tension, high emulsibility energy and excellent wetting
Effect, can be used for oil field oil displacement agent to improve oil recovery factor.The present invention is wide with kinds of surfactants range of choice, prepares
Process is simple, after compounding the features such as stable system, is conducive to the promotion and application in actual industrial.
The technical solution adopted by the present invention is：Example takes 0.5-1 parts of cationic surfactant and nonionic table in mass ratio
Activating agent 2-5 parts of face is placed in the three-necked flask with blender, is stirred 20 minutes, and 2-5 parts of small molecular alcohol is added and stirs 20 points
Zhong Hou is added 4-10 parts of anion surfactant and the stirring 30 minutes of 1-2 parts of deionized water to transparency liquid is formed, obtains light
Yellow product is zwitterion compound surfactant oil displacement agent.
The anion surfactant is neopelex, petroleum sodium sulfonate, aliphatic alcohol polyethenoxy sulphur
One or both of sour sodium, alkyl diphenyl ether disulphonic acid sodium, lauryl sodium sulfate, alpha-alkene sulfonate arbitrary proportion mixes
Close object.
The cationic surfactant is octadecyltrimethylammonium chloride, cetyl trimethylammonium bromide, ten
One kind in six alkyl trimethyl ammonium chlorides, dodecyl benzyl dimethyl ammonium chloride.
The nonionic surfactant is sorbitol anhydride oleate (span 80), nonylphenol polyoxyethylene ether, gathers
One kind of ethylene oxide Sorbitan Monooleate, polyethenoxy sorbitan stearate, lauric acid diethyl amide.
The small molecule alcohol cosurfactant is one kind in methanol, ethyl alcohol, isopropanol.
The surface tension test method is that compound concentration is 0.15% oil displacement agent aqueous solution, using hundred Ou Lin of Sweden
Sigma701 type surface tension instruments are tested, 25 DEG C of test temperature；Low surface tension evaluation criterion is surface tension≤38mN/m.
It is 0.3% oil displacement agent aqueous solution as water phase, aviation kerosine that the ultralow interfacial tension test method, which is compound concentration,
It as oil phase, is tested using section of U.S. promise TX-500 rotating interfacial tensimeters, test rotary rpm is 5000 turns/min, test
25 DEG C of temperature；Ultralow oil water interfacial tension evaluation criterion is interfacial tension ＜ 0.01mN/m.
Specific implementation mode
Embodiment 1：
Example takes 3 parts of 0.5 part of cetyl trimethylammonium bromide and sorbitol anhydride oleate to be placed in stirring in mass ratio
It in the three-necked flask for mixing device, stirs 20 minutes, 2 parts of stirrings of methanol is added after twenty minutes, 4 parts of petroleum sodium sulfonate and deionization is added
For the stirring 30 minutes of 1 part of water to transparency liquid is formed, it is novel anion/cation compound surfactant to obtain faint yellow product
Oil displacement agent.The surface tension of obtained Surfactant Mixing Systems is 33mN/m, oil water interfacial tension 0.0024mN/m.
Embodiment 2：
Example takes 4 parts of 1 part of hexadecyltrimethylammonium chloride and sorbitol anhydride oleate to be placed in stirring in mass ratio
It in the three-necked flask of device, stirs 20 minutes, 3 parts of stirrings of methanol is added after twenty minutes, 4 parts of neopelex, fat is added
To transparency liquid is formed, obtaining faint yellow product is for 2 parts of fat alcohol polyoxyethylene sodium sulphate and the stirring 30 minutes of 2 parts of deionized water
Novel anion/cation compound surfactant oil displacement agent.The surface tension of obtained Surfactant Mixing Systems is
31mN/m, oil water interfacial tension 0.0018mN/m.
Embodiment 3：
Example takes 5 parts of 1 part of octadecyltrimethylammonium chloride and nonylphenol polyoxyethylene ether to be placed in stirring in mass ratio
It in the three-necked flask of device, stirs 20 minutes, 4 parts of stirrings of ethyl alcohol is added after twenty minutes, 6 parts of lauryl sodium sulfate, alkyl is added
It is as novel to obtain faint yellow product to transparency liquid is formed for 4 parts of diphenyl oxide disulfonate and the stirring 30 minutes of 2 parts of deionized water
Anion/cation compound surfactant oil displacement agent.The surface tension of obtained Surfactant Mixing Systems is 32mN/m,
Oil water interfacial tension is 0.0022mN/m.
Embodiment 4：
Example takes 2 parts of 1 part of dodecyl benzyl dimethyl ammonium chloride and lauric acid diethyl amide to be placed in and carries in mass ratio
It in the three-necked flask of blender, stirs 20 minutes, 3 parts of stirrings of isopropanol is added after twenty minutes, 7 parts of petroleum sodium sulfonate, alkane is added
To transparency liquid is formed, obtaining faint yellow product is for 1 part of yl diphenyl ether sodium disulfonate and the stirring 30 minutes of 1.7 parts of deionized water
Novel anion/cation compound surfactant oil displacement agent.The surface tension of obtained Surfactant Mixing Systems is
34mN/m, oil water interfacial tension 0.0025mN/m.
Embodiment 5：
Example takes 0.5 part of dodecyl benzyl dimethyl ammonium chloride and polyoxyethylene sorbitan monooleate in mass ratio
2 parts are placed in the three-necked flask with blender, stir 20 minutes, and 4 parts of stirrings of isopropanol are added after twenty minutes, oil sulphur is added
7 parts of sour sodium, 1 part of aliphatic alcohol polyethenoxy sodium sulphate and the stirring 30 minutes of 2 parts of deionized water obtain yellowish to transparency liquid is formed
Color product is novel anion/cation compound surfactant oil displacement agent.The table of obtained Surfactant Mixing Systems
Face tension is 33mN/m, oil water interfacial tension 0.0019mN/m.
Claims (1)
1. a kind of anion/cation compound surfactant oil displacement agent, it is characterised in that：The compound surface of anion/cation
Surfactant flooding finish is made using following methods：
The example in mass ratio takes 2 parts of l parts of dodecyl benzyl dimethyl ammonium chloride and lauric acid diethyl amide to be placed in and carries
It in the three-necked flask of blender, stirs 20 minutes, 3 parts of stirrings of isopropanol is added after twenty minutes, 7 parts of petroleum sodium sulfonate, alkane is added
L.7 part stirs 30 minutes to transparency liquid is formed for 1 part of yl diphenyl ether sodium disulfonate and deionized water, obtains the novel Yin/Yang
Ion compound surfactant oil displacement agent.
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| CN201310597196.2A CN104650841B (en) | 2013-11-22 | 2013-11-22 | A kind of zwitterion compound surfactant oil displacement agent |
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| CN201310597196.2A CN104650841B (en) | 2013-11-22 | 2013-11-22 | A kind of zwitterion compound surfactant oil displacement agent |
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| CN104650841A CN104650841A (en) | 2015-05-27 |
| CN104650841B true CN104650841B (en) | 2018-10-16 |
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| WO2016138072A1 (en) | 2015-02-27 | 2016-09-01 | Ecolab Usa Inc. | Compositions for enhanced oil recovery |
| CN104962274A (en) * | 2015-06-17 | 2015-10-07 | 成都高普石油工程技术有限公司 | Composite surfactant for oil exploitation |
| CN105018064A (en) * | 2015-07-01 | 2015-11-04 | 西南石油大学 | Foam oil-displacing agent for high salinity and ultra-low permeability or tight oil reservoirs |
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| WO2018005341A1 (en) * | 2016-06-28 | 2018-01-04 | Ecolab USA, Inc. | Composition, method and use for enhanced oil recovery |
| BR112019000087A2 (en) * | 2016-07-12 | 2019-04-09 | Dow Global Technologies Llc | steam-assisted oil recovery foaming composition |
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| CN106318358B (en) * | 2016-07-28 | 2019-05-21 | 山东大学 | A kind of environmental type foam flooding system and the preparation method and application thereof based on alkyl glycosides |
| CN107794019B (en) * | 2016-09-05 | 2020-03-10 | 中国石油天然气股份有限公司 | Composite oil displacement agent for controlling crude oil emulsification degree and application thereof |
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| CN107573916B (en) * | 2017-10-17 | 2020-04-28 | 中国石油大学(华东) | Low-concentration efficient composite oil displacement composition |
| CN108485631B (en) * | 2018-05-14 | 2020-12-01 | 中国日用化学研究院有限公司 | High-temperature-resistant and high-salinity-resistant alkali-free oil displacement agent and preparation method thereof |
| CN110527503B (en) * | 2018-05-24 | 2021-08-20 | 中国石油化工股份有限公司 | Anion-cation pair nanoemulsion oil displacement agent for oil displacement of medium-low permeability reservoir |
| CN110776893B (en) * | 2018-07-31 | 2022-02-22 | 中国石油化工股份有限公司 | Low-interfacial-tension strong-foam oil displacement agent |
| CN114316938B (en) * | 2020-10-09 | 2023-01-31 | 中石化南京化工研究院有限公司 | Self-tackifying surfactant composition containing polyether chain segment for profile control and flooding |
| CN112662387A (en) * | 2020-11-30 | 2021-04-16 | 天津大港油田滨港集团博弘石油化工有限公司 | Green and environment-friendly surfactant oil displacement system for oil exploitation |
| WO2023123132A1 (en) * | 2021-12-29 | 2023-07-06 | Saudi Arabian Oil Company | Concentrated oppositely charged surfactants used for chemical enhanced oil recovery under high salinity and high temperature reservoir conditions |
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