CN104312568A - Negative-nonionic sulfonate high-temperature foamer for oil extraction - Google Patents
Negative-nonionic sulfonate high-temperature foamer for oil extraction Download PDFInfo
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- CN104312568A CN104312568A CN201410649295.5A CN201410649295A CN104312568A CN 104312568 A CN104312568 A CN 104312568A CN 201410649295 A CN201410649295 A CN 201410649295A CN 104312568 A CN104312568 A CN 104312568A
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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
- C09K8/594—Compositions used in combination with injected gas, e.g. CO2 orcarbonated gas
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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
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- Oil, Petroleum & Natural Gas (AREA)
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- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a negative-nonionic sulfonate high-temperature foamer for oil extraction. The invention adopts the technical scheme as follows: the foamer is characterized by belonging to negative-nonionic surfactants and mainly comprises the following components: a Spann sulfonate surfactant, a Tween sulfonate surfactant, a foam stabilizer and a pH regulator. The foamer has the benefits that negative-nonionic sulfonate is adopted as a main raw material; the foamer is applied to a site, is good in water solubility and dispersity when being used in an oil-water well, is good in foamability and excellent in foam stability at high temperature (89 DEG C), and belongs to new-generation high-temperature foamers; foam generated by the foamer is very high in surface strength and very stable; the foamer is good in compatibility with wastewater; the gas release speed is high and can be controlled; the effect of foaming for foam flooding is achieved.
Description
Technical field
The present invention relates to technical field of oilfield chemistry, be specifically related to a kind of high-temperature foaming agent recovered the oil, especially a kind of anion-nonionic sulfonate type high-temperature foaming agent recovered the oil.
Background technology
In the process of heavy crude heat extraction, due to the density variation between steam during injecting steam and profit, and the viscosity differences of steam and reservoir fluid, cause injecting steam channelling, cause effectiveness to be deteriorated, oil recovery factor declines.Foam profile control effectively can improve the development effectiveness of thick oil thermal extraction, improves swept volume and the oil displacement efficiency of steam.Tensio-active agent is commonly used for the whipping agent in foam profile control technology, use the tensio-active agent mostly being anionic widely, as Sodium dodecylbenzene sulfonate, lauryl alcohol polyethylene oxide ether sodium sulfate, sulfonated lignin etc., although have good salt tolerance and temperature tolerance, anti-salt property is limited; And the alkylphenol polyoxyethylene of non-ionic type and the trimethyl-glycine etc. of both sexes, anti-salt property is strong, and micelle-forming concentration is low, but poor stability in the earth formation, adsorptive capacity is higher than aniorfic surfactant.Except the tensio-active agent that two above-mentioned classes are conventional, a class tensio-active agent is also had to have good foaming effect, that is exactly anion-nonionic type tensio-active agent, its maximum feature has good heat and salinity tolerance performance exactly, can adsorption losses be less in the earth formation, and its hydrophile-lipophile balance value (HLB) is adjustable, can for the local water of different salinities, controlled by the size of the oxygen ethene chain link in Molecular regulator structure, therefore anion-nonionic tensio-active agent is more suitable for high temperature and high salt oil deposit than negatively charged ion or nonionic agent.
The celerys in Shen etc. take lauric acid as raw material, through ethyleneoxide addition, chloro and sulfonation three step, synthesize a kind of anion-nonionic type lauric acid polyethers sulfonate surfactants, it is 90.2 DEG C in simulating oil deposit temperature, salinity is 30g/L, calcium ions and magnesium ions concentration is under the condition of 1g/L, when the massfraction of tensio-active agent is 0.3%, oil water interfacial tension can reach 7 × 10-3mN/m, core temperature 90 DEG C, injected water salinity is 17.734g/L, calcium ions and magnesium ions concentration is 412mg/L, when saturated viscosity of crude is 30mpas, carry out laboratory simulation flooding evaluation test, result shows, it is 3.7% that single anion-nonionic amphoterics system can improve oil recovery factor, and recovery ratio significantly can be brought up to 15.6% by the binary combination flooding that this tensio-active agent and combed polyacrylamide form.
Summary of the invention
The present invention can not be suitable for high temperature and high salt oil deposit to solve existing whipping agent, not obvious to oil recovery factor increase rate, provides a kind of anion-nonionic sulfonate type high-temperature foaming agent that can improve oil recovery factor.
Technical scheme of the present invention is a kind of anion-nonionic sulfonate type high-temperature foaming agent recovered the oil, it is characterized in that: this whipping agent belongs to anion-nonionic tensio-active agent, main component comprises this Pan's class sulfosalt surfactant, Tweens sulfosalt surfactant, suds-stabilizing agent, pH adjusting agent, and the per-cent that the weight of each component accounts for gross weight is: this Pan's class sulfosalt surfactant 40 ~ 50%, Tweens sulfosalt surfactant 30 ~ 40%, suds-stabilizing agent 5 ~ 10%, pH adjusting agent 0 ~ 10%, surplus water polishing.
This Pan's class sulfosalt surfactant described is the sulfonate of fatty acid esters of sorbitan.
Described Tweens sulfosalt surfactant is the sulfonate of Polyoxyethylene Sorbitol Fatty Acid Esters.
According to kind and the different amts of lipid acid, this Pan's class sulfosalt surfactant comprises Spans-20, Spans-40, Spans-60, Spans-65, Spans-80, Spans-85; Tweens sulfosalt surfactant comprises Tweens-20, Tweens-40, Tweens-60, Tweens-65, Tweens-80, Tweens-85.
Described suds-stabilizing agent is Xylo-Mucine, polyacrylamide, lauryl alcohol, trolamine, clay, Zulkovsky starch, any one or two kinds in lauroyl diethanolamine.
Described pH adjusting agent is sodium hydroxide or potassium hydroxide, and adjusted to ph is 9 ~ 11.
The anion-nonionic sulfonate type high-temperature foaming agent of oil recovery provided by the invention, foam performance and foam stability can be good, and go for high temperature and high salt oil deposit, the performance testing index of high-temperature foaming agent provided by the invention is shown in shown in mark 1.
The performance index of table 1 high-temperature foaming agent of the present invention
Note: testing performance index is see Q/SH0269-2009 " displacement of reservoir oil foaming agent method of evaluating performance "
Beneficial effect of the present invention is: the moon provided by the invention non-sulfonate type oil recovery high-temperature foaming agent with the non-sulfonate of the moon for main raw material, be applied to scene, in oil and water well uses, well water-soluble, good dispersity, under high temperature (89 DEG C) condition, there is good whipability and excellent froth stability, belong to high-temperature foaming agent of new generation, the foam surface intensity that whipping agent produces is very high, and foam is extremely stable, good with sewage compatibleness, the speed of release gas is fast, and rate of gas generation can control, and reaches the effect that foam flooding bubbles.
Embodiment
By the following examples the present invention is specifically described.
Embodiment one:
The quality of producing each raw material needed for whipping agent of the present invention per ton is: this Pan's class sulfosalt surfactant (Spans-20) 400kg, Tweens sulfosalt surfactant (Tweens-20) 350kg, suds-stabilizing agent (Xylo-Mucine) 50kg, pH adjusting agent 50kg, water 150kg.
Embodiment two:
The quality of producing each raw material needed for whipping agent of the present invention per ton is: this Pan's class sulfosalt surfactant (Spans-20) 500kg, Tweens sulfosalt surfactant (Tweens-20) 350kg, suds-stabilizing agent (Xylo-Mucine) 100kg, pH adjusting agent 50kg.
Performance test is carried out to embodiment one, two liang of increment product, is shown in Table 2.
The performance index of table 2 sample 1,2
Note: the whipping agent stoste provided for embodiment do not marked; 0.4% aqueous solution refers to that the mass percent that the whipping agent that embodiment provides is mixed with is the foaming agent water solution of 0.4%, and preparation water is local water.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. the anion-nonionic sulfonate type high-temperature foaming agent recovered the oil, it is characterized in that: this whipping agent belongs to anion-nonionic tensio-active agent, main component comprises this Pan's class sulfosalt surfactant, Tweens sulfosalt surfactant, suds-stabilizing agent, pH adjusting agent, and the per-cent that the weight of each component accounts for gross weight is: this Pan's class sulfosalt surfactant 40 ~ 50%, Tweens sulfosalt surfactant 30 ~ 40%, suds-stabilizing agent 5 ~ 10%, pH adjusting agent 0 ~ 10%, surplus water polishing.
2. a kind of anion-nonionic sulfonate type high-temperature foaming agent recovered the oil according to claim 1, is characterized in that: this Pan's class sulfosalt surfactant described is the sulfonate of fatty acid esters of sorbitan.
3. a kind of anion-nonionic sulfonate type high-temperature foaming agent recovered the oil according to claim 1, is characterized in that: described Tweens sulfosalt surfactant is the sulfonate of Polyoxyethylene Sorbitol Fatty Acid Esters.
4. a kind of anion-nonionic sulfonate type high-temperature foaming agent recovered the oil according to claim 1, it is characterized in that: described suds-stabilizing agent is Xylo-Mucine, polyacrylamide, lauryl alcohol, trolamine, clay, Zulkovsky starch, any one or two kinds in lauroyl diethanolamine.
5. a kind of anion-nonionic sulfonate type high-temperature foaming agent recovered the oil according to claim 1, it is characterized in that: described pH adjusting agent is sodium hydroxide or potassium hydroxide, adjusted to ph is 9 ~ 11.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410649295.5A CN104312568A (en) | 2014-11-14 | 2014-11-14 | Negative-nonionic sulfonate high-temperature foamer for oil extraction |
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| CN201410649295.5A CN104312568A (en) | 2014-11-14 | 2014-11-14 | Negative-nonionic sulfonate high-temperature foamer for oil extraction |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927826A (en) * | 2015-06-09 | 2015-09-23 | 中国石油天然气股份有限公司 | Foam stabilizer for nitrogen foam combination flooding, foam composition, oil extraction method and application |
| CN105038755A (en) * | 2015-06-17 | 2015-11-11 | 成都高普石油工程技术有限公司 | Technique for preparing foam flooding for petroleum extraction |
| CN105154055A (en) * | 2015-08-13 | 2015-12-16 | 中国石油化工股份有限公司 | Foam oil displacement system with ultralow interfacial tension and use method of foam oil displacement system |
| CN109279809A (en) * | 2018-09-30 | 2019-01-29 | 贵州凯襄新材料有限公司 | A kind of modified air entraining agent and preparation method thereof |
| CN109679610A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | The solid foam water discharge agent and preparation method and application of pH value response |
| CN109897619A (en) * | 2019-04-08 | 2019-06-18 | 中国石油集团渤海钻探工程有限公司 | A kind of Solid Free foam well workover liquid system and preparation method thereof strengthened based on gel |
| CN116218501A (en) * | 2021-12-02 | 2023-06-06 | 中国石油天然气股份有限公司 | Foaming liquid, foam oil displacement realization method and application |
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| CN102766448A (en) * | 2012-07-12 | 2012-11-07 | 天津市瑞德赛恩新材料开发有限公司 | Foam flooding agent |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927826A (en) * | 2015-06-09 | 2015-09-23 | 中国石油天然气股份有限公司 | Foam stabilizer for nitrogen foam combination flooding, foam composition, oil extraction method and application |
| CN105038755A (en) * | 2015-06-17 | 2015-11-11 | 成都高普石油工程技术有限公司 | Technique for preparing foam flooding for petroleum extraction |
| CN105154055A (en) * | 2015-08-13 | 2015-12-16 | 中国石油化工股份有限公司 | Foam oil displacement system with ultralow interfacial tension and use method of foam oil displacement system |
| CN105154055B (en) * | 2015-08-13 | 2018-02-02 | 中国石油化工股份有限公司 | A kind of ultralow interfacial tension foam flooding system and its application method |
| CN109679610A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | The solid foam water discharge agent and preparation method and application of pH value response |
| CN109679610B (en) * | 2017-10-18 | 2021-05-11 | 中国石油化工股份有限公司 | Solid foam drainage agent with pH value response, preparation method and application |
| CN109279809A (en) * | 2018-09-30 | 2019-01-29 | 贵州凯襄新材料有限公司 | A kind of modified air entraining agent and preparation method thereof |
| CN109279809B (en) * | 2018-09-30 | 2021-03-23 | 贵州凯襄新材料有限公司 | Modified air entraining agent and preparation method thereof |
| CN109897619A (en) * | 2019-04-08 | 2019-06-18 | 中国石油集团渤海钻探工程有限公司 | A kind of Solid Free foam well workover liquid system and preparation method thereof strengthened based on gel |
| CN116218501A (en) * | 2021-12-02 | 2023-06-06 | 中国石油天然气股份有限公司 | Foaming liquid, foam oil displacement realization method and application |
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