CN1648199A - Foaming agent for improving conventional oil reservoir raw oil recovery rate and its preparing method - Google Patents
Foaming agent for improving conventional oil reservoir raw oil recovery rate and its preparing method Download PDFInfo
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- CN1648199A CN1648199A CN 200410036598 CN200410036598A CN1648199A CN 1648199 A CN1648199 A CN 1648199A CN 200410036598 CN200410036598 CN 200410036598 CN 200410036598 A CN200410036598 A CN 200410036598A CN 1648199 A CN1648199 A CN 1648199A
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Abstract
The foaming agent has materials including main foaming agent, foam stabilizer and foam stabilizing assistant as well as water. The main foaming agent is polydodecanol oxyethylene ether sodium sulfate; the foam stabilizer is coccinin monoethanolamine, betaine, peroxamine and methyl cellulose condensate; and the foam stabilizing assistant is sodium chloride. The preparation process of the foaming agent includes setting the main foaming agent into reactor, adding foam stabilizer and water while stirring to dissolve and react, adding rest of water and foam stabilizing assistant via stirring to obtain the product.
Description
Technical field:
The present invention relates to conventional oil reservoir and improve the oil recovery factor technical field, relate in particular to a kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio; The invention still further relates to the method for this foaming agent of preparation.
Background technology:
Field produces when being in development late stage, promptly enters the high moisture and ultra-high water-containing stage, how to improve the development effectiveness of maturing field, and how to improve recovery ratio behind the polymer flooding, and for many years, relevant technologies expert has done a lot of discussions, has also obtained a lot of achievements.What these maturing fields pressed for most now is the recovery ratio that improves maturing field with the three new technology of adopting, and increases workable reserve.Foam flooding is to utilize foaming agent to mix the simple foam system displacement of reservoir oil mode that forms with gas, at present, foaming agent on the market mainly is a sodium lauryl sulphate, the alpha-olefin sodium sulfonate, sodium alkyl benzene sulfonate, products such as alkyl succinic acid sodium, though it is latherability is stronger, capable relatively poor with the compatibility of local water, easily and the calcium in the local water, magnesium ion forms precipitation, and foam is a kind of very unsettled material, be very easy to vanish, and when adopting foam flooding, need foaming agent in the stratum, to keep the time as much as possible, therefore, need foam stable as much as possible, the foaming agent of selling on the existing market can not satisfy the demand of foam flooding.It is the new technology of developing under the prior art situation that can increase substantially oil recovery factor with wide application prospect that strengthening foam drives.Foam flooding is to utilize foaming agent to mix the simple foam system displacement of reservoir oil mode that forms with gas, it is to add the flooding method that polymkeric substance such as polyacrylamide strengthens foamy intensity and stability in foam system that strengthening foam drives, and the key problem that foam flooding and strengthening foam drive is that the development foaming power is strong, stability is strong, good with the local water compatibleness, the foaming agent of anti-high salinity.
Summary of the invention:
One of purpose of the present invention provides that a kind of foaming power is strong, froth stability good, anti-high salinity, the ion of anti-the high contents of calcium and magnesium, with the good foaming agent of stratum compatibleness; Two of purpose provides the method for this foaming agent of preparation that a kind of technology is simple, production cost is low.
One of purpose of the present invention can realize by following technical measures:
The raw material of this foaming agent comprises whipping agent host, suds-stabilizing agent and foam stabilizing additive.
One of purpose of the present invention also can realize by following technical measures:
Described raw material (all in weight part) also comprises water 1～60, described whipping agent host is lauryl alcohol Soxylat A 25-7 sulfuric acid ester sodium salt 10～50, described suds-stabilizing agent is cocinic acid monoethanolamine 1～10, trimethyl-glycine 1～15, peroxamine 1～15, and described foam stabilizing additive is a sodium-chlor 0.1～3; Described suds-stabilizing agent also comprises the methylcellulose gum 0.1～3 that contracts.
Foaming agent of the present invention is applicable to that conventional oil reservoir improves the oil recovery factor foam flooding, be applicable to that reservoir temperature is not higher than 100 ℃, salinity is lower than 50000mg/l, and calcium ions and magnesium ions concentration is lower than 10000mg/l, viscosity of crude is lower than oil reservoir viscosity 200mPa.s, rate of permeation 200 * 10
-3μ m
2～20000 * 10
-3μ m
2Oil reservoir.By tensio-active agent lauryl alcohol Soxylat A 25-7 sulfuric acid ester sodium salt (AES) as whipping agent, cocinic acid monoethanolamine, trimethyl-glycine, peroxamine are as suds-stabilizing agent, the foaming agent that is used for foam flooding that sodium-chlor forms through composite reaction as foam stabilizing additive, with nitrogen, carbonic acid gas, Sweet natural gas and air mixed, form stable foam, and do not form muddiness and precipitation with local water.Have that foaming power is strong, froth stability good, anti-high salinity, the ion of anti-the high contents of calcium and magnesium, with the good positively effect of stratum compatibleness, be applied to strengthening foam system shop experiment, foaming volume (Luo Shi method) is greater than 300ml, transformation period is greater than 200min, good with the concentrated water compatibleness of salinity 20000mg/l, calcium, magnesium ion concentration 1000mg/l, foaming properties is unaffected, carries out strengthening foam after the water drive and drives the raising recovery ratio greater than 20%.Polyacrylamide polymers is driven the back strengthening foam and is driven raising recovery ratio 10%.On-the-spot individual well test obtains and increases day by day oily 80 tons, the effect of moisture decline 5%, isolated island Zhong Er district 29-3 well wherein, individual well the highest 63 ton per days of oil that increase day by day moisturely drop to 42.5% by 95%, descend 52.5%, experimental results show that this foaming agent is a kind of foaming agent of excellent property.
Two of purpose of the present invention can realize by following technical measures:
The preparation method of this foaming agent joins whipping agent host to add in the reactor earlier, stirs also to add suds-stabilizing agent and portion water, treat that dissolving, reaction finish after, add surplus water and foam stabilizing additive again, stirring and evenly mixing, product.
The present invention adds suds-stabilizing agent in order to improve whipping agent foamy stability, in order to increase the mutual solubility of whipping agent and suds-stabilizing agent, add the carrying out of fast response, can consider suitable heating, usually be controlled at and be no more than 50 ℃, wherein to be controlled at about 40 ℃ to best.This method technology is simple, easy handling, and production cost is extremely low, and facility investment is few.
Embodiment:
Embodiment 1
The host lauryl alcohol Soxylat A 25-7 sulfuric acid ester sodium salt (AES) of 500kg foaming agent is joined in the reactor, start agitator, add 10kg cocinic acid monoethanolamine, 150kg trimethyl-glycine, 10kg peroxamine and the 25kg methylcellulose gum that contracts, add 300kg water again, be heated to 40 ℃ then, continue to be stirred to and dissolve and react end fully, add 300kg water at last again and evenly add the pure sodium-chlor powder of 30kg, stirring and evenly mixing product.
Embodiment 2
The host lauryl alcohol Soxylat A 25-7 sulfuric acid ester sodium salt (AES) of 150kg foaming agent is joined in the reactor, start agitator, add 100kg cocinic acid monoethanolamine, 80kg trimethyl-glycine, 150kg peroxamine and the 2kg methylcellulose gum that contracts, add the 10kg pure water again, be heated to 45 ℃ then, continue to be stirred to and dissolve and react end fully, add the 200kg pure water at last again and evenly add the pure sodium-chlor powder of 2kg, stirring and evenly mixing product.
Embodiment 3
The host lauryl alcohol Soxylat A 25-7 sulfuric acid ester sodium salt (AES) of 300kg foaming agent is joined in the reactor, start agitator, add 50kg cocinic acid monoethanolamine, 20kg trimethyl-glycine and 70kg peroxamine, the water that adds 300kg again, be heated to 35 ℃ then, continue to be stirred to and dissolve and react end fully, add 100kg water at last again and evenly add the pure sodium-chlor powder of 10kg, stirring and evenly mixing product.
Claims (4)
1, a kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio is characterized in that the raw material of this foaming agent comprises whipping agent host, suds-stabilizing agent and foam stabilizing additive.
2, a kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio according to claim 1, it is characterized in that described raw material (all in weight part) also comprises water 1～60, described whipping agent host is lauryl alcohol Soxylat A 25-7 sulfuric acid ester sodium salt 10～50, described suds-stabilizing agent is cocinic acid monoethanolamine 1～10, trimethyl-glycine 1～15, peroxamine 1～15, and described foam stabilizing additive is a sodium-chlor 0.1～3.
3, a kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio according to claim 2 is characterized in that described suds-stabilizing agent also comprises the methylcellulose gum 0.1～3 that contracts.
4, use the method for the feedstock production foaming agent of claim 1, it is characterized in that earlier whipping agent host being joined adding in the reactor, stir also adding suds-stabilizing agent and portion water, after treating that dissolving, reaction finish, add surplus water and foam stabilizing additive again, stirring and evenly mixing gets product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100365986A CN100569895C (en) | 2004-12-09 | 2004-12-09 | A kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100365986A CN100569895C (en) | 2004-12-09 | 2004-12-09 | A kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN1648199A true CN1648199A (en) | 2005-08-03 |
| CN100569895C CN100569895C (en) | 2009-12-16 |
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| CNB2004100365986A Expired - Fee Related CN100569895C (en) | 2004-12-09 | 2004-12-09 | A kind of foaming agent that improves conventional oil deposil erude petroleum recovery ratio and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002354A (en) * | 2010-11-02 | 2011-04-06 | 上海大学 | Oil displacement agent with ultra-low oil-water interfacial tension and application thereof |
| CN102212348A (en) * | 2010-04-07 | 2011-10-12 | 中国石油天然气股份有限公司 | Salt-tolerant methanol-resistant foam scrubbing agent |
| CN101619208B (en) * | 2009-08-18 | 2011-11-09 | 大庆油田有限责任公司 | Acid-resisting and oil-resisting type foam plugging agent |
| CN101462844B (en) * | 2009-01-08 | 2012-01-18 | 广州澳润合成材料有限公司 | Environment protection type efficient aerating powder for shield construction |
| CN101717627B (en) * | 2009-11-20 | 2012-12-19 | 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 |
| CN103897672A (en) * | 2012-12-27 | 2014-07-02 | 中国石油天然气集团公司 | High-oil-resistant foaming agent for well drilling |
| CN103952132A (en) * | 2014-05-06 | 2014-07-30 | 西南石油大学 | Salt synergistic anti-temperature and anti-salt foam system |
| CN103964726A (en) * | 2013-01-24 | 2014-08-06 | 北京交通大学 | Foaming agent for earth pressure balance shield |
| CN105542741A (en) * | 2016-01-19 | 2016-05-04 | 长江大学 | Temperature-resistant foam-stabilizing type low interfacial tension foaming agent and preparation method thereof |
| CN106433596A (en) * | 2015-08-05 | 2017-02-22 | 中国石油化工股份有限公司 | Low-tension foaming agent suitable for high-temperature high-salinity oil reservoir |
| CN114958328A (en) * | 2022-04-29 | 2022-08-30 | 常州大学 | Application of oil tea saponin foaming agent in tertiary oil recovery |
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| CN106479470B (en) * | 2015-08-31 | 2020-12-11 | 中国石油化工股份有限公司 | Low-tension foaming agent for improving recovery ratio of crude oil of heterogeneous oil reservoir and oil displacement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9918992D0 (en) * | 1999-08-12 | 1999-10-13 | Mbt Holding Ag | Method |
| CN1277238A (en) * | 2000-06-06 | 2000-12-20 | 中国石油辽河油田公司采油工艺研究院 | Antifreezing foaming agent and its use |
| CN1286288A (en) * | 2000-10-09 | 2001-03-07 | 王力民 | Viscosity-reducing composition for high viscosity crude |
-
2004
- 2004-12-09 CN CNB2004100365986A patent/CN100569895C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101462844B (en) * | 2009-01-08 | 2012-01-18 | 广州澳润合成材料有限公司 | Environment protection type efficient aerating powder for shield construction |
| CN101619208B (en) * | 2009-08-18 | 2011-11-09 | 大庆油田有限责任公司 | Acid-resisting and oil-resisting type foam plugging agent |
| CN101717627B (en) * | 2009-11-20 | 2012-12-19 | 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 |
| CN102212348A (en) * | 2010-04-07 | 2011-10-12 | 中国石油天然气股份有限公司 | Salt-tolerant methanol-resistant foam scrubbing agent |
| CN102212348B (en) * | 2010-04-07 | 2013-04-24 | 中国石油天然气股份有限公司 | Salt-tolerant methanol-resistant foam scrubbing agent |
| CN102002354A (en) * | 2010-11-02 | 2011-04-06 | 上海大学 | Oil displacement agent with ultra-low oil-water interfacial tension and application thereof |
| CN103897672A (en) * | 2012-12-27 | 2014-07-02 | 中国石油天然气集团公司 | High-oil-resistant foaming agent for well drilling |
| CN103897672B (en) * | 2012-12-27 | 2016-06-08 | 中国石油天然气集团公司 | Drilling well high resistance oily hair infusion |
| CN103964726A (en) * | 2013-01-24 | 2014-08-06 | 北京交通大学 | Foaming agent for earth pressure balance shield |
| CN103964726B (en) * | 2013-01-24 | 2016-02-17 | 北京交通大学 | Earth pressure balanced shield, EPBS foaming agent |
| CN103952132A (en) * | 2014-05-06 | 2014-07-30 | 西南石油大学 | Salt synergistic anti-temperature and anti-salt foam system |
| CN103952132B (en) * | 2014-05-06 | 2017-01-18 | 西南石油大学 | Salt synergistic anti-temperature and anti-salt foam system |
| CN106433596A (en) * | 2015-08-05 | 2017-02-22 | 中国石油化工股份有限公司 | Low-tension foaming agent suitable for high-temperature high-salinity oil reservoir |
| CN105542741A (en) * | 2016-01-19 | 2016-05-04 | 长江大学 | Temperature-resistant foam-stabilizing type low interfacial tension foaming agent and preparation method thereof |
| CN105542741B (en) * | 2016-01-19 | 2018-11-16 | 长江大学 | Heatproof foam stabilizing type low interfacial tension foaming agent and preparation method thereof |
| CN114958328A (en) * | 2022-04-29 | 2022-08-30 | 常州大学 | Application of oil tea saponin foaming agent in tertiary oil recovery |
| CN114958328B (en) * | 2022-04-29 | 2023-09-19 | 常州大学 | Application of tea-oil saponin foaming agent in tertiary oil recovery |
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| CN100569895C (en) | 2009-12-16 |
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Granted publication date: 20091216 Termination date: 20131209 |