CN102260523A - Crude oil dehydrating low-temperature emulsion breaker and preparation method thereof - Google Patents
Crude oil dehydrating low-temperature emulsion breaker and preparation method thereof Download PDFInfo
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Abstract
The invention discloses crude oil dehydrating low-temperature emulsion breaker, which is used in the technical field of oil extraction in oil fields. The crude oil dehydrating low-temperature emulsion breaker comprises the following components in percentage by weight:25 to 27 percent of water soluble emulsion breaker, 5 to 6.5 percent of polyoxyethylene alkylphenol formaldehyde resin rosin ester, 8.6 to 9.5 percent of K32 low-pour-point crude oil emulsion breaker, 15 to 22.5 percent of emulsion breaker AE-1910, 0.0005 to 0.001 percent of fluorocarbon surfactant FC-3, 0.5 to 0.65 percent of vitamin B, 10 to 15 percent of methanol and the balance of water. The total percentage of the components is 100 percent. The emulsion breaker has the advantages that: under the condition that the added amount of the crude oil dehydrating low-temperature emulsion breaker is 50 to 80mg/l, the water content after dehydration in the crude oil is less than 0.5 percent, the oil content of sewage is less than 300mg/l, and the water is clear and meets standards of the industry.
Description
Technical field
The present invention relates to petroleum industry chemical technical field, relate in particular to a kind of dehydrating of crude oil low-temperature demulsifying agent and preparation method thereof that is used for.Be a kind of crude oil temperature that is applicable in the time of 40～42 ℃, dosage is at the cryogenic dewatering emulsion splitter of 50～80mg/l.
Background technology
Wei Li is new to wait the research that is published in the crude oil low-temperature demulsifying agent on 2009 the 23rd phases Inner Mongol petrochemical complex magazine and summary of Application one literary composition on the basis of summarizing dehydrating of crude oil meaning and various dewaterings, introduced the superiority of chemical demulsification dehydration technique, the extraction liquid water ratio that emphasis faced at China's oil-field development middle and later periods rises, the emulsification of extraction liquid is serious, actual production problems such as emulsifying stability enhancing, and new energy-saving and cost-reducing situation demand brings temperature to reduce the technical barrier that back extraction liquid breakdown of emulsion difficulty increases, set forth the development course of chemical demulsifier, the research and development present situation and the applicable cases of low-temperature demulsifying agent, think that low-temperature demulsifying agent is a kind of development trend from now on, has broad prospect for its application.
People such as Wu Zongfu are published in the development and the defective of application one literary composition at single tube normal temperature conveying flow process crude oil demulsifier of a kind of Novel High Efficiency Demulsifier at Low Temperature on 2003 the 1st phases Jianghan Petroleum College's journal magazine, have developed a kind of Novel High Efficiency Demulsifier at Low Temperature XP-1421.This emulsion splitter is to determine, the selection of the synthetic and emulsion splitter of synthetic and modification, the non-blocked emulsion splitter of initiator preparation, blocked emulsion splitter, compositely form with screening by hydrophile-lipophile balance value.Dehydration rate and corrosion inhibition rate evaluation show the good water solubility of this emulsion splitter, deviate from water water quality height, do not have corrodibility.Test in place adopts terminal dosing, has obtained good demulsification.
Chinese patent CN 101029252B, CN 101100615B, CN101100614B disclose the dehydrating of crude oil low-temperature demulsifying agent of three kinds of suitable different crude oils rerum naturas, have brought into play significant effect in production practice.But above technology is to the bad adaptability of trouble oil-collecting field, river low temperature dewatering.
At present, after the oil field oil extraction system was simplified optimization, after the cancellation oil-collecting companion heat, winter, the crude oil inlet temperature only about 15 ℃, had a strong impact on the primary dewatering effect, and traditional joint station crude Treatment technical process is long, energy consumption is high, efficient is low.
Summary of the invention
The objective of the invention is: a kind of dehydrating of crude oil low-temperature demulsifying agent and preparation method thereof is provided, and dehydrating of crude oil low-temperature demulsifying agent dosage is under the situation of 50～80mg/l, and it is moisture less than 0.5% that crude oil takes off the back, and sewage with oil reaches the industry required standard less than 300mg/l.
The technical solution used in the present invention is:
One, the raw material of dehydrating of crude oil low-temperature demulsifying agent comprises:
1, water-soluble demulsifier LTBF-01 (industrial goods).(Huang Hongzhou edits Chinese tensio-active agent overview one book, the 485th page of Chemical Industry Press);
Character: have that breakdown of emulsion speed is fast under the low temperature, dehydration rate is high, deviate from characteristics such as water is clear.
Purposes: water-soluble efficient cryogenic emulsion splitter.
Production unit: department of chemistry of Zhejiang University, Jidong Petroleum Survey Development Co chemical examination center.
2, polyxyethylated phenol formaldehyde resin rosin ester (industrial goods).(Zhao Fulin edits course teaching materials oilfield chemistry one book geared to the 21st century, and press of China University Of Petroleum Beijing publishes, the 1st edition the 6th printing February in 2007.The 239th page);
3, K32 crude oil of low-coagulation emulsion splitter (industrial goods) (Huang Hongzhou edits Chinese tensio-active agent overview one book, the 486th page of Chemical Industry Press);
Character: a kind of good O/W/O and w/o type crude oil demulsifier, well clear water effect.
Purposes: crude oil low-temperature demulsification dehydration.
Manufacturer: designing institute of Xinjiang Petroleum Administration.
4, emulsion splitter AE-1910 (industrial goods) (Huang Hongzhou edits Chinese tensio-active agent overview one book, the 472nd page of Chemical Industry Press);
Character: the yellowish brown thick liquid, wetting ability is strong than AP.
Purposes: crude oil low temperature dewatering desalting agent.
Manufacturer: Organic Synthetic Factory, Dalian Petrochemical Co., Tianjin the 3rd petroleum chemical plant.
5, fluorocarbon surfactant FC-3 (industrial goods), (Huang Hongzhou edits Chinese tensio-active agent overview one book, the 556th page of Chemical Industry Press);
Purposes: as main raw material and additive, the attractive substance in the oil production and the soldering flux of wave soldering of " light-water " high-efficiency fire-extinguishant.
Produce research: Shanghai organic chemistry institute of Chinese Academy of Sciences demonstration plant.
6, vitamins B (industrial goods).
7, methyl alcohol (industrial goods).
8, water.
Each weight percentages of components of dehydrating of crude oil low-temperature demulsifying agent is:
1, water-soluble demulsifier LTBF-01:25～27%;
2, polyxyethylated phenol formaldehyde resin rosin ester: 5～6.5%;
3, K32 crude oil of low-coagulation emulsion splitter: 8.6～9.5%;
4, emulsion splitter AE-1910:15～22.5%;
5, fluorocarbon surfactant FC-3:0.0005～0.001%;
6, vitamins B: 0.5～0.65%
7, methyl alcohol: 10～15%;
8, all the other are water, and each weight percentages of components sum is absolutely.
Two, the production method of dehydrating of crude oil low-temperature demulsifying agent
Major equipment:
Enamel reaction still with 2000L of stirring, heating, cooling and vacuum system.
Production method:
At first, four kinds of raw materials such as water-soluble demulsifier LTBF-01, polyxyethylated phenol formaldehyde resin rosin ester, K32 crude oil of low-coagulation emulsion splitter, emulsion splitter AE-1910 are added enamel reaction still by weight.Slowly be warmed up to 65～75 ℃.Secondly, add methyl alcohol earlier and answer 8% of add-on under constantly stirring, continue to stir after 30 minutes, add vitamins B more successively by weight, should add 5% of the water yield, the limit edged stirs; Add the methyl alcohol under fluorocarbon surfactant FC-3 and the residue then successively by weight, stirred 30 minutes, last by weight adding residue water down, stir and stop heating after 30 minutes, stir while cooling off, cool off and be stirred to normal temperature, obtain the dehydrating of crude oil low-temperature demulsifying agent.
Summary is used for the using method of dehydrating of crude oil low-temperature demulsifying agent: be used for the dehydrating of crude oil low-temperature demulsifying agent and add extraction liquid with dosing pump before triphase separator, can prolong emulsion splitter action time.
The invention has the beneficial effects as follows: be used for the dehydrating of crude oil low-temperature demulsifying agent, crude oil temperature is in the time of 40～42 ℃, and dosage is under the situation of 50～80mg/l, and it is moisture less than 0.5% that crude oil takes off the back; Sewage with oil is less than 300mg/l, and water quality reaches the industry required standard.
Embodiment
Embodiment 1: a kind of dehydrating of crude oil low-temperature demulsifying agent, and each weight percentages of components is:
1, water-soluble demulsifier LTBF-01:25%;
2, polyxyethylated phenol formaldehyde resin rosin ester: 5%;
3, K32 crude oil of low-coagulation emulsion splitter: 9.5%;
4, emulsion splitter AE-1910:18%;
5, fluorocarbon surfactant FC-3:0.0005%;
6, vitamins B: 0.65%
7, methyl alcohol: 12%;
8, all the other are water, and each weight percentages of components sum is absolutely.
Preparation process: at first, four kinds of raw materials such as water-soluble demulsifier LTBF-01, polyxyethylated phenol formaldehyde resin rosin ester, K32 crude oil of low-coagulation emulsion splitter, emulsion splitter AE-1910 are added enamel reaction still by weight.Slowly be warmed up to 65～75 ℃.Secondly, add methyl alcohol earlier and answer 8% of add-on under constantly stirring, continue to stir after 30 minutes, add vitamins B more successively by weight, should add 5% of the water yield, the limit edged stirs; Add the methyl alcohol under fluorocarbon surfactant FC-3 and the residue then successively by weight, stirred 30 minutes, last by weight adding residue water down, stir and stop heating after 30 minutes, stir while cooling off, cool off and be stirred to normal temperature, obtain the dehydrating of crude oil low-temperature demulsifying agent.
Effect: crude oil temperature is at 41 ℃, and dosage is under the situation of 70mg/l, and crude oil takes off back moisture 0.45%; Sewage with oil 200mg/l, and water quality reaches the industry required standard.
Embodiment 2: a kind of dehydrating of crude oil low-temperature demulsifying agent, and each weight percentages of components is:
1, water-soluble demulsifier LTBF-01:25.5%;
2, polyxyethylated phenol formaldehyde resin rosin ester: 5.3%;
3, K32 crude oil of low-coagulation emulsion splitter: 9.3%;
4, emulsion splitter AE-1910:22%;
5, fluorocarbon surfactant FC-3:0.0006%;
6, vitamins B: 0.6%
7, methyl alcohol: 10%;
8, water is 27.2994%, and each weight percentages of components sum is absolutely.
The preparation method is identical with embodiment 1.Effect: during 41 ℃ of crude oil temperatures, dosage is under the situation of 80mg/l, and crude oil takes off back moisture 0.25%; Sewage with oil 150mg/l, and water quality reaches the industry required standard.
Embodiment 3: a kind of dehydrating of crude oil low-temperature demulsifying agent, and each weight percentages of components is:
1, water-soluble demulsifier LTBF-01:26%;
2, polyxyethylated phenol formaldehyde resin rosin ester: 5.5%;
3, K32 crude oil of low-coagulation emulsion splitter: 9.1%;
4, emulsion splitter AE-1910:20%;
5, fluorocarbon surfactant FC-3:0.0007%;
6, vitamins B: 0.57%
7, methyl alcohol: 14%;
8, water is 24.8293%, and each weight percentages of components sum is absolutely.
The preparation method is identical with embodiment 1.Effect: during 42 ℃ of crude oil temperatures, dosage is under the situation of 60mg/l, and crude oil takes off back moisture 0.45%; Sewage with oil 250mg/l, and water quality reaches the industry required standard.
Embodiment 4: a kind of dehydrating of crude oil low-temperature demulsifying agent, and each weight percentages of components is:
1, water-soluble demulsifier LTBF-01:26.5%;
2, polyxyethylated phenol formaldehyde resin rosin ester: 6%;
3, K32 crude oil of low-coagulation emulsion splitter: 8.8%;
4, emulsion splitter AE-1910:15%;
5, fluorocarbon surfactant FC-3:0.0008%;
6, vitamins B: 0.5%
7, methyl alcohol: 15%;
8, water is 28.1992%, and each weight percentages of components sum is absolutely.
The preparation method is identical with embodiment 1.Effect: during crude oil temperature 40, dosage is under the situation of 70mg/l, and crude oil takes off back moisture 0.40%; Sewage with oil 190mg/l, and water quality reaches the industry required standard.
Embodiment 5: a kind of dehydrating of crude oil low-temperature demulsifying agent, and each weight percentages of components is:
1, water-soluble demulsifier LTBF-01:27%;
2, polyxyethylated phenol formaldehyde resin rosin ester: 6.5%;
3, K32 crude oil of low-coagulation emulsion splitter: 8.6%;
4, emulsion splitter AE-1910:17%;
5, fluorocarbon surfactant FC-3:0.0009%;
6, vitamins B: 0.59%
7, methyl alcohol: 13%;
8, water is 27.3091%, and each weight percentages of components sum is absolutely.
The preparation method is identical with embodiment 1.Effect: during 41.5 ℃ of crude oil temperatures, dosage is under the situation of 60mg/l, and crude oil takes off back moisture 0.45%; Sewage with oil 200mg/l, and water quality reaches the industry required standard.
Claims (2)
1. dehydrating of crude oil low-temperature demulsifying agent, it is characterized in that: each weight percentages of components is:
Water-soluble demulsifier LTBF-01:25～27%;
Polyxyethylated phenol formaldehyde resin rosin ester: 5～6.5%;
K32 crude oil of low-coagulation emulsion splitter: 8.6～9.5%;
Emulsion splitter AE-1910:15～22.5%;
Fluorocarbon surfactant FC-3:0.0005～0.001%;
Vitamins B: 0.5～0.65%
Methyl alcohol: 10～15%;
All the other are water, and each weight percentages of components sum is absolutely.
2. the production method of dehydrating of crude oil low-temperature demulsifying agent according to claim 1, it is characterized in that: at first, four kinds of raw materials such as water-soluble demulsifier LTBF-01, polyxyethylated phenol formaldehyde resin rosin ester, K32 crude oil of low-coagulation emulsion splitter, emulsion splitter AE-1910 are added enamel reaction still by weight.Slowly be warmed up to 65～75 ℃.Secondly, add methyl alcohol earlier and answer 8% of add-on under constantly stirring, continue to stir after 30 minutes, add vitamins B more successively by weight, should add 5% of the water yield, the limit edged stirs; Add the methyl alcohol under fluorocarbon surfactant FC-3 and the residue then successively by weight, stirred 30 minutes, last by weight adding residue water down, stir and stop heating after 30 minutes, stir while cooling off, cool off and be stirred to normal temperature, obtain the dehydrating of crude oil low-temperature demulsifying agent.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140041877A1 (en) * | 2012-08-09 | 2014-02-13 | Charles David Armstrong | Well Treatment Fluids Containing An Ylide Or A Vitamin B And Methods Of Using The Same |
| CN104130762B (en) * | 2013-08-12 | 2017-02-08 | 中国石油化工股份有限公司 | Drag reducing agent for produced liquid of oil well |
| CN107474873A (en) * | 2017-08-17 | 2017-12-15 | 盘锦富隆化工有限公司 | A kind of super-viscous oil demulsifier and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2076134C1 (en) * | 1995-03-24 | 1997-03-27 | Амина Зиннатьевна Габдулхакова | Demulsifier for dehydration and desalting of crude oil |
| CN101029252A (en) * | 2007-03-23 | 2007-09-05 | 中国石油天然气股份有限公司 | Cryogenic dewatering demulsifier of crude-oil extract |
| CN101580736A (en) * | 2009-05-27 | 2009-11-18 | 中国石油天然气股份有限公司 | Low-temperature demulsifier for dehydration of produced liquid by polymer flooding and preparation method thereof |
-
2011
- 2011-06-23 CN CN 201110171059 patent/CN102260523B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2076134C1 (en) * | 1995-03-24 | 1997-03-27 | Амина Зиннатьевна Габдулхакова | Demulsifier for dehydration and desalting of crude oil |
| CN101029252A (en) * | 2007-03-23 | 2007-09-05 | 中国石油天然气股份有限公司 | Cryogenic dewatering demulsifier of crude-oil extract |
| CN101580736A (en) * | 2009-05-27 | 2009-11-18 | 中国石油天然气股份有限公司 | Low-temperature demulsifier for dehydration of produced liquid by polymer flooding and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140041877A1 (en) * | 2012-08-09 | 2014-02-13 | Charles David Armstrong | Well Treatment Fluids Containing An Ylide Or A Vitamin B And Methods Of Using The Same |
| US9090814B2 (en) * | 2012-08-09 | 2015-07-28 | Baker Hughes Incorporated | Well treatment fluids containing an ylide or a vitamin B and methods of using the same |
| CN104130762B (en) * | 2013-08-12 | 2017-02-08 | 中国石油化工股份有限公司 | Drag reducing agent for produced liquid of oil well |
| CN107474873A (en) * | 2017-08-17 | 2017-12-15 | 盘锦富隆化工有限公司 | A kind of super-viscous oil demulsifier and preparation method thereof |
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| CN102260523B (en) | 2013-11-06 |
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