CN1754943A - Process for preparing emulsion breaker of sulfated oil - Google Patents
Process for preparing emulsion breaker of sulfated oil Download PDFInfo
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- CN1754943A CN1754943A CN 200410072293 CN200410072293A CN1754943A CN 1754943 A CN1754943 A CN 1754943A CN 200410072293 CN200410072293 CN 200410072293 CN 200410072293 A CN200410072293 A CN 200410072293A CN 1754943 A CN1754943 A CN 1754943A
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- emulsion splitter
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Abstract
The preparation method of demulsifier for acidified oil comprises three demulsifers of A, B, and C with weight proportion as 0.5-2:0.5-2:1-5, all belonged to block polymer reacted by ethylene oxide, propylene oxide and diisocyanate with different initiators. With this invention, at 60-70Deg, it is rapid to dewater, and the water content of crude oil is less than 0.5%.
Description
(1) technical field:
The present invention relates to a kind of oil field production method, particularly a kind of preparation method of the high-efficient demulsifier of using at emulsion breaker of sulfated oil with emulsion splitter.
(2) background technology:
Utilize conventional mineral acid (example hydrochloric acid) and rock generation corrosion, enlarge the oil gas flow passage, can improve oil and gas production.In recent years, for adapting to the development raisingization effect of acidifying engineering, except that conventional acid solution, again application multiple gelling system, emulsified acid systems and foamed acid system, the technology of acidizing treatment and effect are brought up to a new stage, and such technology has become important technique measure and the development tool that carbonate reservoir and part sandstone oil reservoir oil well production increasing and oil and water well are removed various obstructions, expansion or prolonged hydrocarbon flow passage, increasing yield and injection.Crude oil is an aqueous emulsification system, because the introducing of acidizing fluid makes the emulsion type complicated, comprises oil-in-water (W/O), multiple emulsion; Contain the number of chemical agent in the emulsion, as polymkeric substance, acid, alkali and tensio-active agent etc.Wherein colloidal stability is strong, and the emulsion splitter that adds is had interference.Therefore, the use of single emulsion splitter often effect is bad, as uses the general trade mark as emulsion splitters such as SP-169, AE8031, AE1910, AP212, BP-121, AR2, HD-3, TA1031 the acidifying oil of Bohai Bay Oil not to be reached standard.
(3) summary of the invention:
The objective of the invention is to design a kind of preparation method of emulsion breaker of sulfated oil, it is overcome the shortcoming of existing single emulsion splitter, can make it make the dehydration of acidifying oil effectively, is a kind of preparation method of practical novel emulsion splitter.
Technical scheme of the present invention: a kind of preparation method of emulsion breaker of sulfated oil, it is characterized in that it be with three kinds of emulsion splitter A, B, C is composite forms, said three kinds of emulsion splitter A, B, C react the block polymer that forms by oxyethane, propylene oxide, vulcabond with different initiators, wherein: the A emulsion splitter is with propylene glycol and propylene oxide reaction and synthetic A emulsion splitter oil head forms with oxyethane and propylene oxide reaction again; The B emulsion splitter then is to form B emulsion splitter oil head with higher alcohols and propylene oxide reaction, is polymerized with oxyethane and propylene oxide again; The C emulsion splitter is to be that base-material adds vulcabond again and is polymerized with emulsion splitter B; A emulsion splitter, B emulsion splitter and C emulsion splitter are 0.5-2: 0.5-2 by weight: obtain composite emulsion breaker of sulfated oil after 1-5 is mixed.
The synthesis technique of above-mentioned said A emulsion splitter is:
1. A emulsion splitter oil head is synthetic: with the propylene glycol is initiator, with alkali as a catalyst, 110-150 ℃ down and propylene oxide reaction form, the weight proportion of raw material is:
Propylene glycol: propylene oxide: alkali=1: 6-15: 0.1-0.5;
2. the A emulsion splitter is synthetic: with A emulsion splitter oil head is initiator, with alkali as a catalyst, adds oxyethane and propylene oxide reacts with it under 110-150 ℃, and the weight proportion of raw material is:
A emulsion splitter oil head: oxyethane: propylene oxide: alkali=1: 5-12: 5-18: 0.1-0.5;
The synthesis technique of above-mentioned said B emulsion splitter is:
1. B emulsion splitter oil head is synthetic: with the high-carbon fatty alcohol is initiator, with alkali as a catalyst, adds reacting ethylene oxide and form under 110-150 ℃, and the weight proportion of raw material is:
High-carbon fatty alcohol: oxyethane: alkali=1: 6-12: 0.02-0.5;
2. B emulsion splitter intermediate is synthetic: with B emulsion splitter oil head is initiator, with alkali as a catalyst, adds propylene oxide reaction and form under 110-150 ℃, and the weight proportion of raw material is:
B emulsion splitter oil head: propylene oxide: alkali=1: 4-5: 0.02-0.5;
3. the B emulsion splitter is synthetic: with B emulsion splitter intermediate is initiator, with alkali as a catalyst, adds oxyethane and propylene oxide and react with it and form under 110-150 ℃, and the weight proportion of raw material is:
B intermediate: oxyethane: propylene oxide: KOH=1: 5-12: 6-12: 0.02-0.5;
The synthesis technique of above-mentioned said C emulsion splitter is:
With the B emulsion splitter is that base-material and di-isocyanate reaction form, and temperature of reaction is 50-80 ℃, and the weight proportion of raw material is:
B emulsion splitter: vulcabond: solvent=2-8: 1-3: 5-18.
Used alkali is KOH among the above-mentioned said preparation method, and high-carbon fatty alcohol is 16-octadecanol.
The used solvent of vulcabond is dimethylbenzene, toluene, benzene, gasoline, solvent oil among the above-mentioned said preparation method.
Superiority of the present invention and technique effect are: the composite emulsion breaker of sulfated oil that makes with this case carries out breakdown of emulsion to acidifying oil under 60-70 ℃, dehydration rapidly, the water quality of deviating from is clear, dewaters to such an extent that water content in crude oil is lower than 0.5%, meets production standard.
(4) embodiment:
Embodiment: a kind of preparation method of emulsion breaker of sulfated oil, it is characterized in that it be with three kinds of emulsion splitter A, B, C is composite forms, said three kinds of emulsion splitter A, B, C react the block polymer that forms by oxyethane, propylene oxide, vulcabond with different initiators, wherein: the A emulsion splitter is with propylene glycol and propylene oxide reaction and synthetic A emulsion splitter oil head forms with oxyethane and propylene oxide reaction again; The B emulsion splitter then is to form B emulsion splitter oil head with higher alcohols and propylene oxide reaction, is polymerized with oxyethane and propylene oxide again; The C emulsion splitter is to be that base-material adds vulcabond again and is polymerized with emulsion splitter B.
The synthesis technique of above-mentioned said A emulsion splitter is:
1. A emulsion splitter oil head is synthetic: 50kg propylene glycol and 3kgKOH are dropped into reactor, and vacuum hydro-extraction then adds the temperature reaction of 450kg propylene oxide, and under 135 ± 5 ℃, control pressure is 0.3Mpa, and reaction makes standby;
2. the A emulsion splitter is synthetic: an A emulsion splitter oil 30kg and 1.35kg KOH are dropped into reactor, and vacuum hydro-extraction adds the temperature reaction of 180kg oxyethane earlier, adds the 240kg propylene oxide again, and under 135 ± 5 ℃, control pressure is 0.3Mpa, and reaction makes standby.
The synthesis technique of above-mentioned said B emulsion splitter is:
1. B emulsion splitter oil head is synthetic: octadecanol 700kg and KOH2kg are dropped into reactor, carry out vacuum hydro-extraction, add oxyethane 630kg down at 135 ± 5 ℃, pressure-controlling makes standby below 0.3Mpa;
2. B emulsion splitter intermediate is synthetic: a B oil 100kg and KOH1.5kg are dropped into reactor, add propylene oxide 500kg down at 135 ± 5 ℃, below the control pressure 0.3Mpa, make standby;
3. the B emulsion splitter is synthetic: B emulsion splitter intermediate 50kg and KOH3kg are dropped into reactor, successively add oxyethane 300kg, propylene oxide 450kg (below the control pressure 0.3Mpa) down at 135 ± 5 ℃, make standby.
The synthesis technique of above-mentioned said C emulsion splitter is: B emulsion splitter 300kg is dropped into reactor, be warming up to 80 ℃, will be dissolved in the xylene solution 540kg that contains the 90kg vulcabond, under agitation reacted about 1 hour, be cooled to below 30 ℃ standby then.
The preparation of above-mentioned said composite emulsion breaker of sulfated oil:
With A emulsion splitter 150kg, B emulsion splitter 150kg, C emulsion splitter 50kg adds in the mixing kettle, and stirring is finished product-composite formula acidifying oil emulsion splitter.
The crude oil that carries out after the Bohai Bay Oil acidifying is extracted out with above-mentioned emulsion splitter carries out dehydration experiment, the results are shown in following table:
Acidifying oil dehydrating effect is (before taking off moisture 22%, experiment oil sample 50ml) relatively
| Title | Dewatering time | ||||
| 30′ | 50′ | 60′ | 90′ | 120′ | |
| This case emulsion splitter | 9 | 9.5 | 10 | 10.5 | 11 |
| RE4501 | 8 | 8.5 | 9 | 9.8 | 9.8 |
| Blank | 0 | 1 | 2 | 3 | 5 |
Can find out that from last table this case emulsion splitter dehydration rate can reach 100%.
Claims (6)
1, a kind of preparation method of emulsion breaker of sulfated oil, it is characterized in that it be with three kinds of emulsion splitter A, B, C is composite forms, said three kinds of emulsion splitter A, B, C-react the block polymer that forms by oxyethane, propylene oxide, vulcabond with different initiators, wherein: the A emulsion splitter is with propylene glycol and propylene oxide reaction and synthetic A emulsion splitter oil head forms with oxyethane and propylene oxide reaction again; The B emulsion splitter then is to form B emulsion splitter oil head with higher alcohols and propylene oxide reaction, is polymerized with oxyethane and propylene oxide again; The C emulsion splitter is to be that base-material adds vulcabond again and is polymerized with emulsion splitter B; A emulsion splitter, B emulsion splitter and C emulsion splitter are 0.5-2: 0.5-2 by weight: obtain composite emulsion breaker of sulfated oil after 1-5 is mixed.
2,, it is characterized in that the synthesis technique of said A emulsion splitter is according to the preparation method of the said a kind of emulsion breaker of sulfated oil of claim 1:
1. A emulsion splitter oil head is synthetic: with the propylene glycol is initiator, with alkali as a catalyst, 110-150 ℃ down and propylene oxide reaction form, the weight proportion of raw material is:
Propylene glycol: propylene oxide: alkali=1: 6-15: 0.1-0.5;
2. the A emulsion splitter is synthetic: with A emulsion splitter oil head is initiator, with alkali as a catalyst, adds oxyethane and propylene oxide reacts with it under 110-150 ℃, and the weight proportion of raw material is:
A emulsion splitter oil head: oxyethane: propylene oxide: alkali=1: 5-12: 5-18: 0.1-0.5;
3,, it is characterized in that the synthesis technique of said B emulsion splitter is according to the preparation method of the said a kind of emulsion breaker of sulfated oil of claim 1:
1. B emulsion splitter oil head is synthetic: with the high-carbon fatty alcohol is initiator, with alkali as a catalyst, adds reacting ethylene oxide and form under 110-150 ℃, and the weight proportion of raw material is:
High-carbon fatty alcohol: oxyethane: alkali=1: 6-12: 0.02-0.5;
2. B emulsion splitter intermediate is synthetic: with B emulsion splitter oil head is initiator, with alkali as a catalyst, adds propylene oxide reaction and form under 110-150 ℃, and the weight proportion of raw material is:
B emulsion splitter oil head: propylene oxide: alkali=1: 4-5: 0.02-0.5;
3. the B emulsion splitter is synthetic: with B emulsion splitter intermediate is initiator, with alkali as a catalyst, adds oxyethane and propylene oxide and react with it and form under 110-150 ℃, and the weight proportion of raw material is:
B intermediate: oxyethane: propylene oxide: KOH=1: 5-12: 6-12: 0.02-0.5;
4,, it is characterized in that the synthesis technique of said C emulsion splitter is according to the preparation method of the said a kind of emulsion breaker of sulfated oil of claim 1:
With the B emulsion splitter is that base-material and di-isocyanate reaction form, and temperature of reaction is 50-80 ℃, and the weight proportion of raw material is:
B emulsion splitter: vulcabond: solvent=2-8: 1-3: 5-18.
5, according to the preparation method of said a kind of emulsion breaker of sulfated oil in claim 2 or 3 or 4, it is characterized in that alkali used among the said preparation method is KOH, high-carbon fatty alcohol is 16-octadecanol.
6,, it is characterized in that the used solvent of vulcabond is dimethylbenzene, toluene, benzene, gasoline, solvent oil among the said preparation method according to the preparation method of the said a kind of emulsion breaker of sulfated oil of claim 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2004100722930A CN100453623C (en) | 2004-09-30 | 2004-09-30 | Process for preparing emulsion breaker of sulfated oil |
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| CNB2004100722930A CN100453623C (en) | 2004-09-30 | 2004-09-30 | Process for preparing emulsion breaker of sulfated oil |
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| CN1754943A true CN1754943A (en) | 2006-04-05 |
| CN100453623C CN100453623C (en) | 2009-01-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666541A (en) * | 2013-12-03 | 2014-03-26 | 沃太能源南通有限公司 | Crude oil deemulsifier and preparation method thereof |
| CN110975338A (en) * | 2019-11-22 | 2020-04-10 | 山东清博生态材料综合利用有限公司 | Composite demulsifier suitable for hazardous waste industry |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1051474C (en) * | 1992-01-29 | 2000-04-19 | 大连石油化工公司有机合成厂 | Process for preparing demulsifier for high-solidifiability oil |
| CN1101238C (en) * | 1998-01-21 | 2003-02-12 | 辽河石油勘探局勘察设计研究院 | Crude de-emulsifier and its preparing process |
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2004
- 2004-09-30 CN CNB2004100722930A patent/CN100453623C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103666541A (en) * | 2013-12-03 | 2014-03-26 | 沃太能源南通有限公司 | Crude oil deemulsifier and preparation method thereof |
| CN103666541B (en) * | 2013-12-03 | 2015-09-30 | 北京易斯普罗石油工程技术有限公司 | A kind of crude oil demulsifier and preparation method thereof |
| CN110975338A (en) * | 2019-11-22 | 2020-04-10 | 山东清博生态材料综合利用有限公司 | Composite demulsifier suitable for hazardous waste industry |
| CN110975338B (en) * | 2019-11-22 | 2022-03-11 | 山东清博生态材料综合利用有限公司 | Composite demulsifier suitable for hazardous waste industry |
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| CN100453623C (en) | 2009-01-21 |
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