CN101121882A - Crude oil composite type emulsification viscosity reducing agent and preparation method thereof - Google Patents
Crude oil composite type emulsification viscosity reducing agent and preparation method thereof Download PDFInfo
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- CN101121882A CN101121882A CNA2007101197286A CN200710119728A CN101121882A CN 101121882 A CN101121882 A CN 101121882A CN A2007101197286 A CNA2007101197286 A CN A2007101197286A CN 200710119728 A CN200710119728 A CN 200710119728A CN 101121882 A CN101121882 A CN 101121882A
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Abstract
The invention relates to a raw oil composite emulsification viscosity reducing agent, applied to maintenance of oil wells in oil-fields. The raw materials include (calculated by weight percent) A. oleate polyoxyethylene (5) ester: 0.5 to 1.5 percent; B. petroleum cyclocarboxylic alkanolamide sulfate 3 to 8 percent; C. fatty alcohol-polyoxyethylene ether 5 to 15 percent; D. sodium hydroxide 0.5 to 1.5 percent; E. soda 1.0 to 2.0 percent; F. sodium bicarbonate 1.5 to 3; G. FC-3B fluorocarbon surfactant 0.05% to 0.1 percent; H. water (the remainder). During daily maintenance of an oil well, addition of 100mg/l to 200mg/l of such agent can not only meet the requirement of daily viscosity reducing agent on high-temperature resistance, but also meet the requirement of anti-mineral salt. The invention can well reduce the viscosity of raw oil in oil-wells.
Description
Technical field
The invention belongs to petroleum industry chemical technical field, relate in particular to a kind of property negatively charged ion and composite composite type emulsification viscosity reducing agent that forms of nonionogenic tenside with employed heatproof height, anti-salt in the well maintenance.In the oil well routine maintenance, dosage can satisfy the resistant to elevated temperatures requirement of the daily viscosity-depression agent of oil well when 50mg/l～100mg/l, can satisfy the requirement of anti-rock salt again.Solve the viscosity reduction problem of oil well routine maintenance.
Background technology
In the crude oil recovery process, usually use emulsifying pour depressor, but use aniorfic surfactant separately, saline-alkaline tolerance is not high enough; Use nonionic emulsifier non-refractory again separately, poor stability can not use more than cloud point.
Summary of the invention
The objective of the invention is: a kind of crude oil composite type emulsification viscosity reducing agent is provided, can satisfies the high temperature resistant requirement of the daily viscosity-depression agent of oil well, can satisfy the requirement of anti-rock salt again.Solve the reducing crude oil viscosity problem of oil well routine maintenance.
The technical scheme that the present invention is taked for its technical problem of solution is:
One, the starting material of crude oil composite type emulsification viscosity reducing agent comprise:
1, coconut oil polyoxyethylene (5) ester (industrial goods);
(Huang Hongzhou edits Chinese tensio-active agent overview one book, the 367th page of Chemical Industry Press)
Character: weak yellow liquid
Purposes: as emulsifying agent, dispersion agent
Production unit: Jiangsu circle in the air chemical limited-liability company, fine chemistry industry company of Shanghai Gaoqiao petro-chemical corporation, Shanghai Assistant Agent Factory Co., Ltd., the big new and high technology of Tianjin worker industrial corporation
2, petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt (industrial goods);
(Huang Hongzhou edits Chinese tensio-active agent overview one book, the 164th page of Chemical Industry Press)
Character: have the mildness of carboxylic acid sodium and the anti-hard water of sodium sulfonate concurrently, and pungency is low, high temperature resistance, foaminess are good.
Purposes: surfactant oil displacement, the oil water interfacial tension Schwellenwert of optimum formula flooding system is 1.0 * 1.0
-3MN/m
Production unit: applied chemistry institute of Xinjiang University, exploratory development research institute of Xinjiang Petroleum Administration
3, AE07 (industrial goods); (Huang Hongzhou edits Chinese tensio-active agent overview one book, the 326th page of Chemical Industry Press)
Formal name used at school: polyoxyethylene (7) C
12(or C
12～15) alkyl oxide
Another name: C
12E
nC
12～15E
7C
12(or C
12～15) alkyl polyoxyethylene (7) ether; C
12(or C
12～15) aliphatic alcohol polyethenoxy (7) ether.
Purposes: liquid washing agent, grease-removing agent, dispersion agent, wetting agent, emulsifying agent component, tertiary oil recovery auxiliary agent raw material, AE
7The S raw material.
Manufacturer: [Soviet Union] general petrochemical works, Hai'an
4, sodium hydroxide (industrial goods);
5, yellow soda ash (industrial goods);
6, sodium bicarbonate (industrial goods);
7, FC-3B fluorocarbon surfactant (industrial goods);
Character: faint yellow, consumption is that 0.01～0.05% o'clock surface tension is less than 16.8mN/m
Purposes: in oilfield exploitation procedure, can improve the output capacity of oil gas well.
Manufacturer: Shanghai Zhongke Hechen Co., Ltd. produces.
8, water.
The starting material components by weight of producing composite type emulsification viscosity reducing agent is:
1, coconut oil polyoxyethylene (5) ester (industrial goods): 0.5～1.5%;
2, petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt (industrial goods): 3～8%;
3, AE07 (industrial goods): 5～15%;
4, sodium hydroxide (industrial goods): 0.5～1.5%;
5, yellow soda ash (industrial goods): 1.0～2.0%;
6, sodium bicarbonate (industrial goods): 1.5～3%;
7, FC-3B fluorocarbon surfactant (industrial goods): 0.05%～0.1%;
8, all the other are water.
Two, the production method of composite type emulsification viscosity reducing agent
Major equipment:
Enamel reaction still with 2000L of stirring, heating, cooling and vacuum system.
Production method:
At first, water, coconut oil polyoxyethylene (5) ester, petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt, AE07 and five kinds of raw materials of FC-3B fluorocarbon surfactant are added enamel reaction still in proportion.Slowly be warmed up to 50～65 ℃.Under constantly stirring, under vacuum condition, add sodium bicarbonate, yellow soda ash, sodium hydroxide in proportion, continue to stir after 30 minutes, stop heating from reactor.Stir while cooling off, be cooled to normal temperature.Obtain composite type emulsification viscosity reducing agent.
The invention has the beneficial effects as follows: adopt the composite type emulsification viscosity reducing agent of present method preparation, in the oil well routine maintenance, dosage can satisfy the high temperature resistant requirement of the daily viscosity-depression agent of oil well when 100mg/l～200mg/l, can satisfy the requirement of anti-rock salt again.Solve the reducing crude oil viscosity problem of oil well routine maintenance.
Embodiment
Utilize the present invention on probation in the oil well routine maintenance of numerous wells in some oil districts of North China Oilfield time, dosage can satisfy the resistant to elevated temperatures requirement of the daily viscosity-depression agent of oil well when 100mg/l～200mg/l, can satisfy the requirement of anti-rock salt again.Solve the reducing crude oil viscosity problem of oil well routine maintenance, improve the crude monoglyceride well production rate.
Embodiment 1: the prescription and the production technique of composite type emulsification viscosity reducing agent are: at first, 79.42% water, 1.0% coconut oil polyoxyethylene (5) ester, 5.5% petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt, 9.5% AE07 and five kinds of raw materials of FC-3B fluorocarbon surfactant of 0.08% are added enamel reaction still in proportion.Slowly be warmed up to 55 ℃.Under constantly stirring, under vacuum condition, add 2.0% sodium bicarbonate, 1.5% yellow soda ash, 1.0% sodium hydroxide in proportion, continue to stir after 30 minutes, stop heating from reactor.Stir while cooling off, be cooled to normal temperature.Obtain composite type emulsification viscosity reducing agent.
Embodiment 2: the prescription and the production technique of composite type emulsification viscosity reducing agent are: at first, 85.05% water, 0.7% coconut oil polyoxyethylene (5) ester, 3.8% petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt, 6.2% AE07 and five kinds of raw materials of FC-3B fluorocarbon surfactant of 0.06% are added enamel reaction still in proportion.Slowly be warmed up to 62 ℃.Under constantly stirring, under vacuum condition, add 1.3% sodium bicarbonate, 1.26% yellow soda ash, 0.73% sodium hydroxide in proportion, continue to stir after 30 minutes, stop heating from reactor.Stir while cooling off, be cooled to normal temperature.Obtain composite type emulsification viscosity reducing agent.
Embodiment 3: the prescription and the production technique of composite type emulsification viscosity reducing agent are: at first, the petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt that 73.73% water, coconut oil polyoxyethylene (5) ester that Shanghai Assistant Agent Factory Co., Ltd. of 1.35% produces, 7.1% exploratory development research institute of Xinjiang Petroleum Administration are produced, 12.3% AE07 and five kinds of raw materials of FC-3B fluorocarbon surfactant of 0.07% add enamel reaction still in proportion.Slowly be warmed up to 65 ℃.Under constantly stirring, under vacuum condition, add 2.7% sodium bicarbonate, 1.6% yellow soda ash, 1.15% sodium hydroxide in proportion, continue to stir after 30 minutes, stop heating from reactor.Stir while cooling off, be cooled to normal temperature.Obtain composite type emulsification viscosity reducing agent.
Viscosity break ratio is estimated:
Add the viscosity of crude of this composite type emulsification viscosity reducing agent front and back with rotary viscosity measuring, calculate viscosity break ratio.
Step
1, get crude oil sample, preheating in water-bath, its viscosity number when measuring 50 ℃, note is made μ 0;
2, with adding this composite type emulsification viscosity reducing agent in the crude oil sample, stir, its viscosity number when measuring 50 ℃, note is made μ
1
3, viscosity break ratio (%)=100% (μ
0-μ
1)/μ
0
| Example | The crude oil source | Blank sample viscosity mpa.s | Salinity mg/l | Viscosity of crude mpa.s after the dosing | Viscosity break ratio % |
| Embodiment 1 | Shanxi 45 | 327 | 11320 | 18 | 94.5 |
| Embodiment 2 | Car city | 672 | 9821 | 25 | 96.3 |
| Embodiment 3 | Ulmaceae | 634 | 8764 | 33 | 94.8 |
Claims (2)
1. crude oil composite type emulsification viscosity reducing agent, it is characterized in that: the starting material components by weight is:
A, coconut oil polyoxyethylene (5) ester: 0.5～1.5%;
B, petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt: 3～8%;
C、AEO7：5～15％；
D, sodium hydroxide: 0.5～1.5%;
E, yellow soda ash: 1.0～2.0%;
F, sodium bicarbonate: 1.5～3%;
G, FC-3B fluorocarbon surfactant: 0.05%～0.1%;
H, all the other are water.
2. the production method of crude oil composite type emulsification viscosity reducing agent according to claim 1, it is characterized in that: at first, water, coconut oil polyoxyethylene (5) ester, petroleum naphthenic acid single ethanol amide sulfosuccinic acid monoesters disodium salt, AEO7 and five kinds of raw materials of FC-3B fluorocarbon surfactant are added enamel reaction still in proportion, slowly be warmed up to 50～65 ℃; Under constantly stirring, under vacuum condition, add sodium bicarbonate, yellow soda ash, sodium hydroxide in proportion, continue to stir after 30 minutes, stop heating from reactor; Stir while cooling off, be cooled to normal temperature, obtain composite type emulsification viscosity reducing agent.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101197286A CN100537698C (en) | 2007-07-31 | 2007-07-31 | Crude oil composite type emulsification viscosity reducing agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101197286A CN100537698C (en) | 2007-07-31 | 2007-07-31 | Crude oil composite type emulsification viscosity reducing agent and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101121882A true CN101121882A (en) | 2008-02-13 |
| CN100537698C CN100537698C (en) | 2009-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773010A (en) * | 2012-10-25 | 2014-05-07 | 中国石油化工股份有限公司 | Hot mix asphalt additive and preparation method thereof |
| CN106244126A (en) * | 2016-07-03 | 2016-12-21 | 青岛大学 | A kind of method preparing heavy crude thinner for raw material with aphthenic acids |
| CN111205843A (en) * | 2019-06-18 | 2020-05-29 | 中国石油大学(北京) | Thick oil viscosity reducer, preparation method and use method thereof |
| CN113528109A (en) * | 2021-06-02 | 2021-10-22 | 中国石油大学(北京) | Viscosity reducer, preparation method and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4265264A (en) * | 1979-04-30 | 1981-05-05 | Conoco, Inc. | Method of transporting viscous hydrocarbons |
-
2007
- 2007-07-31 CN CNB2007101197286A patent/CN100537698C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773010A (en) * | 2012-10-25 | 2014-05-07 | 中国石油化工股份有限公司 | Hot mix asphalt additive and preparation method thereof |
| CN103773010B (en) * | 2012-10-25 | 2015-09-30 | 中国石油化工股份有限公司 | A kind of warm-mixed asphalt additive and preparation method thereof |
| CN106244126A (en) * | 2016-07-03 | 2016-12-21 | 青岛大学 | A kind of method preparing heavy crude thinner for raw material with aphthenic acids |
| CN106244126B (en) * | 2016-07-03 | 2019-01-25 | 青岛大学 | A method of heavy crude thinner is prepared by raw material of aphthenic acids |
| CN111205843A (en) * | 2019-06-18 | 2020-05-29 | 中国石油大学(北京) | Thick oil viscosity reducer, preparation method and use method thereof |
| CN111205843B (en) * | 2019-06-18 | 2021-06-25 | 中国石油大学(北京) | Thick oil viscosity reducer, preparation method and use method thereof |
| CN113528109A (en) * | 2021-06-02 | 2021-10-22 | 中国石油大学(北京) | Viscosity reducer, preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100537698C (en) | 2009-09-09 |
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