CN1068359A - Emulsifying and viscosity-reducing agent for condensed oil - Google Patents
Emulsifying and viscosity-reducing agent for condensed oil Download PDFInfo
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- CN1068359A CN1068359A CN 92106045 CN92106045A CN1068359A CN 1068359 A CN1068359 A CN 1068359A CN 92106045 CN92106045 CN 92106045 CN 92106045 A CN92106045 A CN 92106045A CN 1068359 A CN1068359 A CN 1068359A
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- China
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- viscosity
- emulsifying
- reducing agent
- condensed oil
- oil
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Abstract
A kind of emulsifying and viscosity-reducing agent for condensed oil is by organic bronsted lowry acids and bases bronsted lowry, through the organic synthesis preparation, when working concentration is 80ppm, can make viscous crude form O/W type milk sap, make viscosity of thickened oil reduce by tens even nearly 100,000 times than original, the preparation of this emulsifying agent easily, consumption is few, the efficient height, cost is low, and economic benefit is big.
Description
The present invention relates to a kind of emulsifying and viscosity-reducing agent for condensed oil.
Viscosity of thickened oil is very high.The low person of its viscosity of viscous crude as the Liaohe Oil Field has several Kmn, s/m
2, Gao Zheke reaches several Nmn, s/m
2, mobile extreme difference gives exploitation and collection the defeated difficulty of bringing.Therefore, reduce viscosity of thickened oil, improve its exploitation property and pumping, have crucial meaning for the development field produces.Done a large amount of research in this respect both at home and abroad, invented many methods, mainly contained: 1, heating viscosity reduction method; 2, thin oil blending visbreaking method; 3, mix solvent viscosity reduction method; 4, hot water circulation viscosity reduction method; 5, reducing viscosity by emulsifying method etc., wherein the first three methods cost is higher.Some can not extensively be utilized by the restriction of resource.The 4th kind of method and technology difficulty is big, wayward.The 5th kind of method viscosity reduction amplitude is big, but the promoting agent consumption is big, generally about 500～5000ppm, and as US.Pat3380531,3487844,3943954,4108193,4246919,4265254 and UK, pat2169220 etc.Therefore, cost is also higher.In recent years, utilized the patent of caustic alkali viscosity reduction to deliver though also have, the reaction in alkali and the crude oil between organic acid, wayward, usually form w/o type milk sap, viscosity is increased, at these problems, we have invented present method.
The purpose of this invention is to provide a kind ofly in moisture 1～40% viscous crude, under stirring at low speed, can make viscous crude form stable O/W type milk sap, the emulsifying and viscosity-reducing agent for condensed oil of comparable original low by tens, the hundreds of of its viscosity even several ten thousand times.
Viscosity-reducing mechanism of the present invention is, in water content is 1～40% viscous crude, adds the present invention, can form O/W type milk sap through stirring, and this kind oil is low viscous Newtonian fuid under flow state.Easily layering dehydration under quiescent conditions, easy redispersion under low speed, pump-conveying property is good.Therefore, can obviously improve the recoverability and the pumping of viscous crude.
The emulsifying agent that the present invention adopts is organic acid and the newly-generated salt of alkali neutralization reaction, has following general formula:
R-A-B
Wherein R is an alkyl, if aliphatic alkyl as
, then n=8～30 are preferentially selected C for use
12～C
20Alkyl, as be
N=1～8 then are if alkyl is preferentially selected C for use
4～C
12Alkyl; Aryl as
R=C then
4～C
18, preferentially select C for use
8～C
14Alkyl.
Wherein A is an acidic-group, and is main-COOH ,-COO-,-OSO
3H ,-OSO
3-,-O-(-CH
2CH
2O-)
n-OSO
3H, wherein, n=5～30 are preferentially selected n=10～24 for use.
-SO
3H，-SO
3-，-OPO
3H，
Wherein B be basic group because of, mainly contain K
+, Na
+, NH
+ 4, CH
3NH
2(CH
3)
2NH, (CH
3)
3N, C
2H
5NH
2, (C
2H
5)
2NH, (CH
3) NH
2, NH
2CH
2CH
2NH
2
Under 5～200 ℃ of temperature, two or more organic bronsted lowry acids and bases bronsted lowries are mixed (according to mol than or make base excess) generate salt through neutralization reaction, can composite compound surfactant owing to have synergy, its emulsifying capacity is improved greatly.
Under low shear rate, viscous crude is heated to 60～80 degree, the water content according to 15～35% adds emulsifier aqueous solution (emulsifying agent thin liquid be pure oil mass 10～35%), makes to form O/W type milk sap, and its viscosity obviously descends.
Can be directly and the aqueous emulsion mixing and emulsifying under high shear rate with the viscous crude under the normal temperature.
Working concentration of the present invention is 50～500PPM.
The present invention is significant to the effect of reducing thick oil viscosity.
Table 1 emulsifying and viscosity-reducing agent for condensed oil is to oil recovery factory, Jinzhou, Liaohe Oil Field part oil sample test-results
The present invention prepares easily, and consumption is few, the efficient height, and cost is low, and economic benefit is big.
Claims (5)
1, a kind of emulsifying and viscosity-reducing agent for condensed oil is characterized in that: the newly-generated salt of organic bronsted lowry acids and bases bronsted lowry with following general formula: R-A-B
This emulsifying agent is made up of three parts, and wherein R is an alkyl, and A is an acidic-group, and B is a basic group.
2, according to the emulsifying and viscosity-reducing agent for condensed oil described in the claim 1, it is characterized in that: R is the alkyl with following structure:
C
nH
2n+1-, C
nH
2n-1, n=8～30 are wherein preferentially selected the alkyl of n=12～20 for use.R=C
8～C
18, preferentially select R=C for use
8～C
14Alkane;
3, according to the emulsifying and viscosity-reducing agent for condensed oil described in the claim 1, it is characterized in that: the acidic-group among the R-A-B should have following structure:
-COOH，-COO
-，-SO
3H，-SO
3-，-OSO
3H，
-OSO
3-，-OPO
3H，-OPO
3，-O-（-CH
2CH
2O-）
n-SO
3H
-O-（-CH
2CH
2O-）
n-OSO
3-
-O-（-CH
2CH
2O-）
m-
nSO
3-
4, according to emulsifying and viscosity-reducing agent for condensed oil described in the claim 1, it is characterized in that: the basic group among the R-A-B should have following structure
K
+，Na
+，NH
4，NH
2CH
2CH
2NH
2，
NH
2CH
2CH
2OH，NH（CH
2CH
2OH）
2
N（CH
2CH
2OH）
3，NH
2CH（CH
3）CH
2OH，
5, according to the emulsifying and viscosity-reducing agent for condensed oil described in the claim 1, it is characterized in that: the working concentration of R-A-B is 50～500ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106045 CN1068359A (en) | 1992-02-11 | 1992-02-11 | Emulsifying and viscosity-reducing agent for condensed oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106045 CN1068359A (en) | 1992-02-11 | 1992-02-11 | Emulsifying and viscosity-reducing agent for condensed oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1068359A true CN1068359A (en) | 1993-01-27 |
Family
ID=4941743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106045 Pending CN1068359A (en) | 1992-02-11 | 1992-02-11 | Emulsifying and viscosity-reducing agent for condensed oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068359A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1080582C (en) * | 1998-12-11 | 2002-03-13 | 李大石 | Surface active agent |
| CN1101255C (en) * | 1998-01-21 | 2003-02-12 | 辽河石油勘探局勘察设计研究院 | Emulsifying viscosity-reducing agent for superthick emulsified oil combustion |
| CN102352733A (en) * | 2011-10-17 | 2012-02-15 | 中国石油天然气股份有限公司 | Method for anchoring oil pipe of heavy oil well |
-
1992
- 1992-02-11 CN CN 92106045 patent/CN1068359A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101255C (en) * | 1998-01-21 | 2003-02-12 | 辽河石油勘探局勘察设计研究院 | Emulsifying viscosity-reducing agent for superthick emulsified oil combustion |
| CN1080582C (en) * | 1998-12-11 | 2002-03-13 | 李大石 | Surface active agent |
| CN102352733A (en) * | 2011-10-17 | 2012-02-15 | 中国石油天然气股份有限公司 | Method for anchoring oil pipe of heavy oil well |
| CN102352733B (en) * | 2011-10-17 | 2014-08-06 | 中国石油天然气股份有限公司 | Method for anchoring oil pipe of heavy oil well |
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| WD01 | Invention patent application deemed withdrawn after publication |