CN102399548A - Foaming agent used in composite-foam oil flooding - Google Patents
Foaming agent used in composite-foam oil flooding Download PDFInfo
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- CN102399548A CN102399548A CN2010102831548A CN201010283154A CN102399548A CN 102399548 A CN102399548 A CN 102399548A CN 2010102831548 A CN2010102831548 A CN 2010102831548A CN 201010283154 A CN201010283154 A CN 201010283154A CN 102399548 A CN102399548 A CN 102399548A
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Abstract
The invention relates to a foaming agent used in composite-foam oil flooding. The foaming agent comprises materials of, by concentration: 0.2 to 0.4% of hydroxyl-sulfobetaine, 0.1% of 1227, 0.04 to 0.1% of dodecanol, and balance of formation water. The molecular formula of 1227 is C21H38NCl. The molecular formula of dodecanol is C12H26O. The foaming agent provided by the invention has a temperature resistance stabilized at 50 DEG C, and a good salt resistance of 80*10<3>mg/L. Foaming performance and foam stabilizing performance of the foaming agent are detected by using a Ross-mils method (a decanting method). The foaming height of the foaming agent is 14.4cm; the half-life period reaches 16 hours; and the oil-water interfacial tension is 0.192mN/m. According to the invention, advantages of chemical flooding and gas flooding are combined; viscose foam and gas are adopted as oil-flooding agents, such that double functions of profile modifying and oil flooding are achieved, and a defect of gas flooding of gas channeling is avoided. The foaming agent is suitable for oil reservoir with high water content, severe anisotropic, and cracks or large porous channels.
Description
Technical field
The present invention relates to a kind of composite foam displacement of reservoir oil and use pore forming material, is a kind of chemical oil displacement agent that is applicable to the displacement of reservoir oil raising the output of hyposmosis heterogeneous body oil field.
Background technology
The oil field major part that China has now found that belongs to the nonmarine deposit reservoir, and nonuniformity is serious, receives the influence of stratum nonuniformity and disadvantageous water-oil mobility ratio, and water ratio rises fast, and waterflood recovery efficiency factor is lower, and waterflooding effect often is not very desirable.And other selection that improves the RF effective technology is limited, as modification water filling, the notes technology of gathering.Gas injection has been proved to be a kind of and has improved recovery efficiency technique efficiently, but has source of the gas deficiency and the high situation of cost, and its application is restricted.Thereby the air injection technology receives increasing attention, and air injection exploitation lightweight oil oil reservoir is a creative raising RF new technology.The air source is wide, and cost is cheap, both can be used as the secondary oil recovery mode, also can be used for TOR, but for the most heterogeneous body thin layer of China, aclinic acline, because has channeling and viscous fingering, the oil displacement efficiency of simple air injection is restricted.
In recent years; In the research that improves oil recovery, foam flooding more and more receives people's attention with its unique seepage flow and displacement of reservoir oil performance, and foam system can reduce oil water interfacial tension; Improve oil displacement efficiency; Can reduce water-oil mobility ratio again, improve swept volume, can increase substantially the RF of oil reservoir.
Summary of the invention
The purpose of this invention is to provide a kind of efficient viscous foam system; Through reducing relation in oil water interfacial tension, adjustment interlayer or the layer, improve the swept volume of oil reservoir, be this type of reservoir waterflooding middle and later periods water and oil control; Realize long-term stable yields, further improve RF and explore new technological approaches.
Amphoterics can be brought into play the advantage of negatively charged ion and cats product, and excellent property, salt resistance are good, are easy to the better pore forming material of composite generation performance.It is poor to remove the AS salt resistance, can not be composite with it outside, can amphoterics and nonionogenic tenside, cats product, polymkeric substance, auxiliary agent etc. are composite to improve its performance.
Select anti-salt property amphoterics hydroxy sulfo lycine preferably for use, with cats product and auxiliary agent carry out composite, the research and development excellent property be applicable to the pore forming material under the high salinity.
One, the component of pore forming material
1, hydroxy sulfo lycine
Chemical name: Oleum Cocois amido propyl hydroxyl sulphur trimethyl-glycine.
Molecular formula:
Performance: have good lathering property and significant thickening property; Have good anti-hard water, antistatic and biological degradability; The sultaine of acid amide type has better mildness and foam stability.
Purposes: as amphoterics, products such as suitable especially preparation shampoo, body lotion, cleansing milk, baby's washing composition, dish washing detergent and hard surface cleaner.
2、1227
Molecular formula: C
21H
38NCl
Performance: a kind of cats product, belong to non-oxidizable sterilant, have wide spectrum, sterilization algae removal ability efficiently, can control bacterium algae propagation and foundry loam growth in the water effectively, and have the effect of peeling off of good foundry loam and certain dispersion, osmosis.
Purposes: be widely used in growing in order to Control Circulation cooling water system bacterium algae in the recirculating cooling water system of industries such as oil, chemical industry, electric power, weaving, special efficacy arranged to killing sulphate reducing bacteria.
3, lauryl alcohol
Molecular formula: C
12H
26O
Performance: water insoluble, glycerine is dissolved in Ucar 35, ethanol, benzene, chloroform, ether.
Purposes: the raw material that is used to prepare tensio-active agents such as fatty alcohol-ether sodium sulfate, AEO.
Two, each constituent mass proportioning and performance
Foaming agent solution is formulated by local water, and wherein hydroxy sulfo lycine concentration is 0.2%～0.4%, 1227 to be 0.1%, and lauryl alcohol is 0.04%～0.1%, and surplus is a local water.Each item performance to foaming agent solution is tested, and temperature resistance can be stabilized in 50 ℃; Salt resistance is better, reaches 80 * 10
3Mg/L; With the lathering property and the foam stability ability of Ross-mils method (tilt-pour process) mensuration pore forming material, recording bubbles highly is 14.4cm, and the transformation period reaches 16 hours; Oil water interfacial tension is 0.192mN/m.
The effect of invention
The composite foam technology of driving has combined the comprehensive advantage of chemical flooding and gas drive; With viscous foam and gas as oil-displacing agent; Dual-use function with profile control and displacement of reservoir oil has overcome the shortcoming of gas drive " has channeling ", is applicable to high moisture, serious heterogeneity, has the oil reservoir of crack or macropore.
Embodiment
Embodiment 1
The present invention adopts following mode to realize,
1. with 0.2% hydroxy sulfo lycine, 0.05% lauryl alcohol proportional mixing adds in whipping process in the local water, to dissolving fully, is made into base fluid.
2. stir on the limit, and the limit adds 0.1%1227 in base fluid, can form foaming agent solution.
Each item performance to foaming agent solution is tested, and temperature resistance can be stabilized in 50 ℃; Salt resistance is better, reaches 80 * 10
3Mg/L; With the lathering property and the foam stability ability of Ross-mils method (tilt-pour process) mensuration pore forming material, recording bubbles highly is 14.4cm, and the transformation period reaches 16 hours; Oil water interfacial tension is 0.194mN/m.
Embodiment 2
The present invention adopts following mode to realize,
1. with 0.4% hydroxy sulfo lycine, 0.1% lauryl alcohol proportional mixing adds in whipping process in the local water, to dissolving fully, is made into base fluid.
2. stir on the limit, and the limit adds 0.1%1227 in base fluid, can form foaming agent solution.
Each item performance to foaming agent solution is tested, and temperature resistance can be stabilized in 50 ℃; Salt resistance is better, reaches 80 * 10
3Mg/L; With the lathering property and the foam stability ability of Ross-mils method (tilt-pour process) mensuration pore forming material, recording bubbles highly is 14.4cm, and the transformation period reaches 16 hours; Oil water interfacial tension is 0.194mN/m.
Embodiment 3
The present invention adopts following mode to realize,
1. with 0.3% hydroxy sulfo lycine, 0.07% lauryl alcohol proportional mixing adds in whipping process in the local water, to dissolving fully, is made into base fluid.
2. stir on the limit, and the limit adds 0.1%1227 in base fluid, can form foaming agent solution.
Each item performance to foaming agent solution is tested, and temperature resistance can be stabilized in 50 ℃; Salt resistance is better, reaches 80 * 10
3Mg/L; With the lathering property and the foam stability ability of Ross-mils method (tilt-pour process) mensuration foaming agent, recording bubbles highly is 14.4cm, and the transformation period reaches 16 hours; Oil water interfacial tension is 0.194mN/m.
Claims (1)
1. pore forming material is used in a composite foam displacement of reservoir oil, it is characterized in that: formulated by local water, wherein by mass percentage:
Hydroxy sulfo lycine concentration is 0.2～0.4%, 1227 to be 0.1%, and lauryl alcohol is 0.04～0.1%, and surplus is a local water;
Described Oleum Cocois amido propyl hydroxyl sulphur trimethyl-glycine molecular formula is:
Described 1227 molecular formula are: C
21H
38NCl;
Described lauryl alcohol molecular formula is: C
12H
26O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010283154 CN102399548B (en) | 2010-09-15 | 2010-09-15 | Foaming agent used in composite-foam oil flooding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010283154 CN102399548B (en) | 2010-09-15 | 2010-09-15 | Foaming agent used in composite-foam oil flooding |
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| CN102399548A true CN102399548A (en) | 2012-04-04 |
| CN102399548B CN102399548B (en) | 2013-07-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740345A (en) * | 2012-10-17 | 2014-04-23 | 中国石油化工股份有限公司 | Foam sealing channeling composition, preparation method thereof and applications thereof |
| WO2017050024A1 (en) * | 2015-09-21 | 2017-03-30 | 中国石油大学(华东) | Novel inorganic fine particle enhanced foam system for oil-gas field and preparation method therefor |
| CN107916097A (en) * | 2016-10-08 | 2018-04-17 | 中国石油化工股份有限公司 | Displacement of reservoir oil viscoelasticity betaine surfactant composition |
| CN109679618A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | Resisting high temperature, high salt foaming water discharge agent and preparation method and application |
| CN110410047A (en) * | 2019-06-17 | 2019-11-05 | 中国石油天然气股份有限公司 | A kind of flooding method and its gas energy release oil displacement agent for high gassiness oil field |
| CN115926767A (en) * | 2022-11-15 | 2023-04-07 | 中国石油天然气集团有限公司 | High-temperature and high-pressure resistant foam sand washing liquid and preparation method and application thereof |
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| CN1524921A (en) * | 2003-02-28 | 2004-09-01 | 中国石油天然气股份有限公司 | Foaming agent and acidic cross-linking foam breakdown fluid |
| CN101215462A (en) * | 2008-01-11 | 2008-07-09 | 西南石油大学 | Method for preparing foaming agent used for oil gas field drilling and extracting |
| CN101717627A (en) * | 2009-11-20 | 2010-06-02 | 中国石油化工股份有限公司胜利油田分公司地质科学研究院 | Low-tension foaming agent for improving crude oil extracting rate of high-salinity oil reservoir and preparation method thereof |
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1524921A (en) * | 2003-02-28 | 2004-09-01 | 中国石油天然气股份有限公司 | Foaming agent and acidic cross-linking foam breakdown fluid |
| CN101215462A (en) * | 2008-01-11 | 2008-07-09 | 西南石油大学 | Method for preparing foaming agent used for oil gas field drilling and extracting |
| CN101717627A (en) * | 2009-11-20 | 2010-06-02 | 中国石油化工股份有限公司胜利油田分公司地质科学研究院 | Low-tension foaming agent for improving crude oil extracting rate of high-salinity oil reservoir and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103740345A (en) * | 2012-10-17 | 2014-04-23 | 中国石油化工股份有限公司 | Foam sealing channeling composition, preparation method thereof and applications thereof |
| CN103740345B (en) * | 2012-10-17 | 2016-06-08 | 中国石油化工股份有限公司 | Foam envelope alters composition and method of making the same and purposes |
| WO2017050024A1 (en) * | 2015-09-21 | 2017-03-30 | 中国石油大学(华东) | Novel inorganic fine particle enhanced foam system for oil-gas field and preparation method therefor |
| CN107916097A (en) * | 2016-10-08 | 2018-04-17 | 中国石油化工股份有限公司 | Displacement of reservoir oil viscoelasticity betaine surfactant composition |
| CN109679618A (en) * | 2017-10-18 | 2019-04-26 | 中国石油化工股份有限公司 | Resisting high temperature, high salt foaming water discharge agent and preparation method and application |
| CN109679618B (en) * | 2017-10-18 | 2021-05-11 | 中国石油化工股份有限公司 | High-temperature-resistant high-salt foam drainage agent, and preparation method and application thereof |
| CN110410047A (en) * | 2019-06-17 | 2019-11-05 | 中国石油天然气股份有限公司 | A kind of flooding method and its gas energy release oil displacement agent for high gassiness oil field |
| CN115926767A (en) * | 2022-11-15 | 2023-04-07 | 中国石油天然气集团有限公司 | High-temperature and high-pressure resistant foam sand washing liquid and preparation method and application thereof |
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| CN102399548B (en) | 2013-07-31 |
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