CN106518788B - Wax crystalline substance, asphaltene dispersants for High viscosity crude - Google Patents
Wax crystalline substance, asphaltene dispersants for High viscosity crude Download PDFInfo
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- CN106518788B CN106518788B CN201610861022.6A CN201610861022A CN106518788B CN 106518788 B CN106518788 B CN 106518788B CN 201610861022 A CN201610861022 A CN 201610861022A CN 106518788 B CN106518788 B CN 106518788B
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- pour
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- wax
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/70—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings condensed with carbocyclic rings or ring systems
- C07D239/72—Quinazolines; Hydrogenated quinazolines
- C07D239/86—Quinazolines; Hydrogenated quinazolines with hetero atoms directly attached in position 4
- C07D239/88—Oxygen atoms
- C07D239/90—Oxygen atoms with acyclic radicals attached in position 2 or 3
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a kind of wax crystalline substance, asphaltene dispersants for High viscosity crude.The dispersing agent is a kind of organic compound containing oil-soluble Long carbon chain fatty alkyl functional group and polar ester group, amide groups, phenyl and amidine functional group.The raw material sources of dispersing agent of the invention are extensive, and synthesis technology is simple, and process cleans are pollution-free, and product is easily obtained and transports preservation；Dispersing agent anti-salt property of the invention is good, and resistance to salinity reaches 220000mg/L；Dispersing agent of the invention simultaneously can be used in compounding with a variety of pour-point depressants, significant effect, under conditions of being compounded with pour-point depressant, when dosage is 150ppm, the crude oil of high-solidification point can be made to reduce by 3 DEG C or more compared to only addition pour-point depressant, viscosity reduces 55% or more compared to single pour-point depressant more.Therefore, present invention is generally applicable in the pour point depression of High viscosity crude well, viscosity reduction field test.
Description
Technical field
The present invention relates to the small molecule chemical combination that can help to wax crystalline substance, pitch dispersion used in a kind of thickened oil recovery process
A kind of object, and in particular to wax crystalline substance, asphaltene dispersants for High viscosity crude.
Background technique
Viscous crude resource reserve occupies biggish specific gravity in World's Oil and Gas Resources gross reserves.Skill is exploited with to petroleum resources
The continuous improvement of art and the continuous exhaustion of light crude oil resource, High viscosity crude resource increasingly cause the height of petroleum worker
Degree is paid attention to.Therefore how exploitation utilization is carried out to High viscosity crude, energy reserve can be employed by making, and become petroleum circle always
In the problem probed into.A small amount of pour-point depressant is added in crude oil, and row is currently widely used with the low temperature fluidity for improving viscous crude
Effective method.But due to in-place oil complicated composition, many oil reservoirs face with high salt, high-content wax, high asphalitine etc. and ask
Topic, therefore, only adding pour-point depressant has limitation to the depression effeCt of High viscosity crude, and the use of emulsifying pour depressor will face the later period
The predicaments such as demulsification.
Wax-crystal dispersing auxiliary is a kind of low molecular compound for having oil-soluble alkane branch and more highly polar group concurrently.Mesh
It is preceding to be mainly used in compounding with pour-point depressant, it is applied to reduce cold filter point of diesel oil, shows good synergistic effect.Pour-point depressant acts on machine
Reason is also imperfectly understood, and general theory thinks, some pour-point depressants use adsorption mechanism, is had some then using eutectic mechanism, wax
It is according to a kind of pour-point depressant synthesized that brilliant dispersing agent, which is exactly with adsorption theory,.
BASF European Co., Ltd disclosed the invention " stone as fuel of ZL 200780023172.9 in China in 2007
The polar oil-soluble nitrogen compound of dispersing agent for wax and the mixture of amide ", which is related to a kind of dispersing agent, by polar oil-soluble
The oil-soluble products that nitrogen compound, oil-soluble amide and carboxylic acid and alkylamine are formed form, suitable for containing biodiesel
Fuel oil.But it is poor for the viscous crude function and effect containing colloid, asphalitine；In addition, the dispersing agent has more carboxylic acid
Group is easily formed hydrogen bond, is not suitable for containing the formation condition more than water flooding.
Asphaltene dispersants are that one kind can stablize asphalitine in crude oil, are at equilibrium state without wadding a quilt with cotton
Solidifying and deposition chemical agent.In order to increase the stability of asphalitine, polar compound such as alcohols, amine, ketone etc. can be added.?
There is the absorption by surfactant molecule in asphalitine, play the role of peptized asphaltenes, i.e., by the way that parents' molecule is added
The colloidal stability for improving crude oil, prevents the flocculation of asphalitine from depositing.
ZL 02155597.4 " oil well cleaning de-plugging agent " proposes one kind and cleans de-plugging agent for oil development oil well,
Aromatic hydrocarbons, ethyl alcohol, acylate, Emulsification of Paraffin dispersing agent, Efficient detergent is compound by a certain percentage, it can dissolve colloid, pitch
The organic matters such as matter, wax enhance crude oil fluidity, may also suppress reservoir clay swell.Its main component is aromatic hydrocarbon substance,
In detergent ingredient be still fluorinated surfactant.The dosage patent of cleaning de-plugging agent, which has no, to be related to, and economy is difficult to do
Assessment.
" the multiple-effect performance that novel heterocyclic compound containing N is used as lube oil additive " (Logistics engineering that Ouyang's equality is delivered
Institute's journal), it provides in 2008,04 " document a kind of for multiple-effect performances such as temperature resistance, wear-resistant, antioxygen and anti-corruption in lubricating oil
Heterocyclic compound containing N.But the document does not report brilliant for wax and colloid, asphalitine the dispersion in crude oil of this compound
Effect.It is this that there is aromatic heterocycle polar functional group and the non-pole of Long carbon chain alkyl with heterocyclic compound containing N according to experimental study
Property functional group, can be used for that viscous crude wax is brilliant, asphaltene dispersants.Above-mentioned heterocyclic compound containing N brilliant, pitch for High viscosity crude wax
Dispersing agent simultaneously has no any document or patent report.
Summary of the invention
The present invention provides a kind of for the wax crystalline substance of High viscosity crude, asphalitine point in view of the deficiency of the prior art
Powder, the dispersing agent be it is a kind of containing oil-soluble Long carbon chain fatty alkyl functional group and polar ester group, amide groups, phenyl with
And the organic compound of amidine functional group.The dispersing agent has the characteristics that heatproof, salt tolerance, pour point depression and viscosity-reducing performance are good.It is above-mentioned
The wax for High viscosity crude is brilliant, asphaltene dispersants, molecular formula is as follows:
In formula, the even number that n is 12~18, preferably 14.
Present invention heterocyclic compound containing N has nonpolar hydrocarbon chain and polar ester group, amide groups and amidine functional group,
Oil-soluble hydrocarbon chain can be adsorbed with the hydrocarbon backbone eutectic of wax, and polar functional group is due to stronger dispersion and solubilising
Ability facilitates the habit that pour-point depressant changes wax in crude oil, guarantees that pour-point depressant can play maximum function and effect；Separately
Outside, this, which contains N heterocyclic compound, has adjacent benzene heterocycle functional group, which is easy in conjunction with the asphalitine in High viscosity crude, penetrates into
To between the sheet molecule of asphalitine, in conjunction with the compound after, asphaltene molecules are not easy to be bound to each other to form big crystal, rise
To the effect of dispersed bitumens matter, it is eventually exhibited as reducing the viscosity of viscous crude.
The present invention is had the following advantages and beneficial effects: compared with prior art
(1) wax of the invention is brilliant, the raw material sources of asphaltene dispersants are extensive, and synthesis technology is simple, and process cleans are without dirt
Dye, product are easily obtained and transport preservation；
(2) the characteristics of wax of the invention is brilliant, asphaltene dispersants are few with dosage, safety and stability, remarkable in economical benefits；
(3) wax of the invention is brilliant, asphaltene dispersants temperature resistance salt resistant character is good, and up to 220 DEG C, resistance to salinity reaches heatproof
220000mg/L；
(4) wax of the invention is brilliant, asphaltene dispersants universality is good, not only there is synergistic well make with pour-point depressant
With, and also there is preferable peptizaiton to asphalitine.Under the conditions of compounding, when dosage is 150ppm, high solidification can be made
The crude oil selected reduces by 3 DEG C or more compared to only addition pour-point depressant more, and viscosity reduces 55% or more compared to single pour-point depressant.
Specific embodiment
The present invention is described in further detail below with reference to specific embodiment, and referring to data, it should be appreciated that these embodiments
It is of the invention solely for the purpose of illustration, rather than limit the scope of the invention in any way.
Embodiment 1:
The present invention provides a kind of wax crystalline substance, asphaltene dispersants P for High viscosity crude1, molecular formula are as follows:
According to existing document, above-mentioned High viscosity crude wax crystalline substance, asphaltene dispersants P1Specifically to prepare equation as follows:
Brilliant, the asphaltene dispersants P using the High viscosity crude wax of above method preparation1With commercially available T1804 pour-point depressant according to not
It compounds in proportion, is added in Shengli Oil Field High viscosity crude M, is stirred evenly with 150ppm additive amount.The basic parameter of the viscous crude
As follows: for freezing point in 43 DEG C, paraffin content 32.8%, viscosity is (43 DEG C) 7250mPa.s, density 948.6kg/m3, it is aqueous
Rate is 28.38%.
Measuring it according to SY/T 0541-2009 method reduces high-content wax viscous crude M condensation point, viscosity effect, and test result is shown in Table
1。
1 P of table1Pour point depression, the viscosity reducing effect of front and back are compounded with pour-point depressant
Data shown in reference table 1 are it is found that for Shengli Oil Field High viscosity crude M, and the wax of High viscosity crude of the present invention is brilliant, asphalitine
Dispersing agent P1Condensation point can be made to reduce by 7~8 DEG C after compounding with commercially available T1804 pour-point depressant, than commercially available T1804 pour point depression is only added
Agent reduces by 3 DEG C or more more, in addition, comparing the viscosity reducing effect of single pour-point depressant, the pour-point depressant after compounding can make the reduction of its viscosity
58% or more, illustrate wax crystalline substance, the asphaltene dispersants P for High viscosity crude of the invention1Not only have synergistic well
Effect, and there is wax crystalline substance, asphalitine peptizaiton.
Embodiment 2:
The present invention provides a kind of wax crystalline substance, asphaltene dispersants P for High viscosity crude2, molecular formula are as follows:
According to existing document, above-mentioned High viscosity crude wax crystalline substance, asphaltene dispersants P2It is specific the preparation method is as follows:
Brilliant, the asphaltene dispersants P using the High viscosity crude wax of above method preparation2With commercially available T1804 pour-point depressant according to not year-on-year
Example compounding, is added in Shengli Oil Field High viscosity crude M with 150ppm additive amount, is stirred evenly.The basic parameter of the viscous crude is as follows:
For freezing point in 43 DEG C, paraffin content 32.8%, viscosity is (43 DEG C) 7250mPas, density 948.6kg/m3, moisture content be
28.38%.
Measuring it according to SY/T 0541-2009 method reduces High viscosity crude M condensation point, viscosity effect, and test result is shown in Table 2.
2 P of table2Pour point depression, the viscosity reducing effect of front and back are compounded with pour-point depressant
Data shown in reference table 2 are it is found that for Shengli Oil Field High viscosity crude M, and the wax of High viscosity crude of the present invention is brilliant, asphalitine
Dispersing agent P2Condensation point can be made to reduce by 9~10 DEG C after compounding with commercially available T1804 pour-point depressant, than commercially available T1804 drop is only added
Solidifying agent reduces by 5 DEG C or more more, in addition, comparing the viscosity reducing effect of single pour-point depressant, the pour-point depressant after compounding can make the reduction of its viscosity
56% or more, illustrate High viscosity crude wax crystalline substance of the invention, asphaltene dispersants P2Not only there is good synergistic function, and
And there is wax crystalline substance, asphalitine peptizaiton.
Embodiment 3:
The present invention provides a kind of wax crystalline substance, asphaltene dispersants P for High viscosity crude3, molecular formula are as follows:
According to existing document, wax crystalline substance, the asphaltene dispersants P of above-mentioned High viscosity crude3It is specific the preparation method is as follows:
Brilliant, the asphaltene dispersants P using the High viscosity crude wax of above method preparation3With commercially available T1804 pour-point depressant according to not
It compounds in proportion, is added in Shengli Oil Field High viscosity crude M, is stirred evenly with 150ppm additive amount.The basic parameter of the viscous crude
As follows: for freezing point in 43 DEG C, paraffin content 32.8%, viscosity is (43 DEG C) 7250mPa.s, density 948.6kg/m3, it is aqueous
Rate is 28.38%.
Measuring it according to SY/T 0541-2009 method reduces High viscosity crude M condensation point, viscosity effect, and test result is shown in Table 3.
3 P of table3Pour point depression, the viscosity reducing effect of front and back are compounded with pour-point depressant
Data shown in reference table 3 are it is found that for Shengli Oil Field High viscosity crude M, and High viscosity crude wax of the invention is brilliant, asphalitine
Dispersing agent P3Condensation point can be made to reduce by 8~10 DEG C after compounding with commercially available T1804 pour-point depressant, than commercially available T1804 drop is only added
Solidifying agent reduces by 4 DEG C or more more, in addition, comparing the viscosity reducing effect of single pour-point depressant, the pour-point depressant after compounding can make the reduction of its viscosity
64% or more, illustrate High viscosity crude wax crystalline substance of the invention, asphaltene dispersants P3Not only there is good synergistic function, and
And there is wax crystalline substance, asphalitine peptizaiton.
Embodiment 4:
The present invention provides a kind of wax crystalline substance, asphaltene dispersants P for High viscosity crude4, molecular formula are as follows:
According to existing document, wax crystalline substance, the asphaltene dispersants P of above-mentioned High viscosity crude4It is specific the preparation method is as follows:
Brilliant, the asphaltene dispersants P using the wax of the High viscosity crude of above method preparation4With commercially available T1804 pour-point depressant according to
Different proportion compounding, is added in Shengli Oil Field High viscosity crude M with 150ppm additive amount, is stirred evenly.The basic ginseng of the viscous crude
Number is as follows: for freezing point in 43 DEG C, paraffin content 32.8%, viscosity is (43 DEG C) 7250mPas, density 948.6kg/m3, contain
Water rate is 28.38%.
Measuring it according to SY/T 0541-2009 method reduces High viscosity crude M condensation point, viscosity effect, and test result is shown in Table 4.
4 P of table4Pour point depression, the viscosity reducing effect of front and back are compounded with pour-point depressant
Data shown in reference table 4 are it is found that for Shengli Oil Field High viscosity crude M, and High viscosity crude wax of the invention is brilliant, asphalitine
Dispersing agent P4Condensation point can be made to reduce by 7~8 DEG C after compounding with commercially available T1804 pour-point depressant, than commercially available T1804 pour point depression is only added
Agent reduces by 3 DEG C or more more, in addition, comparing the viscosity reducing effect of single pour-point depressant, the pour-point depressant after compounding can make the reduction of its viscosity
57% or more, illustrate High viscosity crude wax crystalline substance of the invention, asphaltene dispersants P4Brilliant, the asphalitine peptizaiton with wax.
In conclusion present invention heterocyclic compound containing N is for High viscosity crude wax, brilliant, asphaltene dispersants not only have preferably
Wax crystalline substance peptizaiton, significantly reduce the freezing point of High viscosity crude；And have the function of dispersed bitumens matter, it effectively reduces
The viscosity of High viscosity crude.Dosage of the present invention is few simultaneously, and synthesis technology is simple, and process cleans are pollution-free, is suitable for High viscosity crude
Exploitation and delivery application.
Claims (2)
1. a kind of wax for High viscosity crude is brilliant, the application of asphaltene dispersants, it is characterised in that: described for High viscosity crude
Wax is brilliant, asphaltene dispersants have the following structure:
In formula, n be 12~18 even number.
2. the wax according to claim 1 for High viscosity crude is brilliant, the application of asphaltene dispersants, it is characterised in that: institute
The n stated is 14.
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| CN201610861022.6A CN106518788B (en) | 2016-09-28 | 2016-09-28 | Wax crystalline substance, asphaltene dispersants for High viscosity crude |
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| CN201610861022.6A CN106518788B (en) | 2016-09-28 | 2016-09-28 | Wax crystalline substance, asphaltene dispersants for High viscosity crude |
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| CN106518788A CN106518788A (en) | 2017-03-22 |
| CN106518788B true CN106518788B (en) | 2019-04-02 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110835523B (en) * | 2018-08-17 | 2022-02-15 | 中国石油化工股份有限公司 | Emulsifying viscosity reducer for cold production of thick oil and preparation method thereof |
| CN116589996B (en) * | 2023-05-09 | 2024-01-12 | 华美孚泰油气增产技术服务有限责任公司 | Liposome high-coagulation thick oil displacement agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473018A (en) * | 2006-06-22 | 2009-07-01 | 巴斯夫欧洲公司 | Mixture from polar oil-soluble nitrogen compounds and acid amides as paraffin dispersant for fuels |
| CN102191028A (en) * | 2010-03-18 | 2011-09-21 | 中国石油化工股份有限公司 | Oil-soluble viscosity breaker composition |
-
2016
- 2016-09-28 CN CN201610861022.6A patent/CN106518788B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101473018A (en) * | 2006-06-22 | 2009-07-01 | 巴斯夫欧洲公司 | Mixture from polar oil-soluble nitrogen compounds and acid amides as paraffin dispersant for fuels |
| CN102191028A (en) * | 2010-03-18 | 2011-09-21 | 中国石油化工股份有限公司 | Oil-soluble viscosity breaker composition |
Non-Patent Citations (4)
| Title |
|---|
| 新型含N杂环化合物用作润滑油添加剂的多效性能;欧阳平，等;《后勤工程学院学报》;20080430;第24卷(第2期);56-60 |
| 新型油溶性沥青质分散剂抑制重质原油沥青质沉积的研究;宋军，等;《石油炼制与化工》;20160430;第47卷(第4期);36-41 |
| 无硫磷喹唑啉酮酯新型润滑油抗磨添加剂的制备及其性能;欧阳平，等;《石油学报(石油加工)》;20080831;第24卷(第4期);465-471，尤其图1 |
| 稠油沥青分散剂的筛选及效果研究;向晶，等;《精细石油化工进展》;20150131;第16卷(第1期);13-15 |
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