CN106833578A - Daiamid Arrcostab is used for the pitch dispersant of High viscosity crude - Google Patents
Daiamid Arrcostab is used for the pitch dispersant of High viscosity crude Download PDFInfo
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- CN106833578A CN106833578A CN201710044314.5A CN201710044314A CN106833578A CN 106833578 A CN106833578 A CN 106833578A CN 201710044314 A CN201710044314 A CN 201710044314A CN 106833578 A CN106833578 A CN 106833578A
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- high viscosity
- pitch dispersant
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- crude
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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
- C09K8/52—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
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- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses the pitch dispersant that a kind of daiamid Arrcostab is used for High viscosity crude.The pitch dispersant is made up of host and solvent, and described host is a kind of dendroid organic compound with multiple amide groups, ester group and amidine functional group, and its molecular formula is as follows：In formula：
Description
Technical field
The scattered dendritic macromole chemical combination of pitch is can help to the present invention relates to what is used during a kind of thickened oil recovery
Thing, and in particular to a kind of polyamide-amide-Arrcostab is used for the pitch dispersant of High viscosity crude.
Background technology
Viscous crude resource reserve occupies larger proportion in World's Oil and Gas Resources gross reserves.Skill is exploited with to petroleum resources
The continuous improvement of art, and light crude oil resource continuous exhaustion, High viscosity crude resource increasingly causes the height of oil worker
Degree is paid attention to.Therefore how exploitation utilization is carried out to High viscosity crude, making can employ energy reserve, become oil circle always
In the problem probed into.It is the current row for generally using that a small amount of pour-point depressant is added in crude oil to improve the low temperature flowability of viscous crude
Effective method.But because in-place oil constitutes complicated, many oil reservoirs face high salt, high-content wax, asphalitine high etc. and ask
Topic, and the use of emulsifying pour depressor will face the predicaments such as later stage demulsification.
Contain more resin and asphalt in viscous crude, viscosity is big, poor mobile performance, heating or dilution are very effective
Recovery method.General, under the reservoir condition of stabilization, saturated hydrocarbons, aromatic hydrocarbon, resin and asphalt component in viscous crude are in
Thermodynamic equilibrium state, the change of reservoir physics and chemical property may make reservoir fluid in flowing and phase in development process
There are significant changes in aspect, poised state of the destruction asphalitine component in crude oil causes asphalitine to be flocculated in crude oil and heavy
Product, causes the blocking of stratum, pit shaft and production equipment.
The text report of Xi'an Petroleum University's journal " viscous crude gum asphalt disperses de-plugging agent performance evaluation to be applied with scene "
Water based asphalt High Temperature Disperse stabilizer is used for the oil well of offshore oil production factory Organic Material Blocking.The agent is by dispersant, and it is appropriate to be equipped with
Cosolvent and C-F, Si-F surfactant and water composition, its mechanism of action are dissolving-dispersion-miscible-one stabilizations of formation
Low viscosity system, will not be layered precipitation with low temperature under formation conditions, reduce viscosity of thickened oil, improve the flowing of formation crude oil
Ability.Its general principle is to adding a certain amount of aqueous surfactant solution in crude oil, crude oil is formed oil-in-water type emulsus
Liquid or dispersion.But the shortcoming of the method is dispersant dosage more than 16%, high cost, and wherein contain substantial amounts of water,
Crude oil transportation is to also needing to carry out breaking emulsion and dewatering behind destination, it is necessary to increase demulsification operation, and need to increase to being given up after demulsification
The processing cost of water.
ZL 02155597.4 " oil well cleaning de-plugging agent " proposes a kind of oil development oil well that is used for and cleans de-plugging agent,
Aromatic hydrocarbons, ethanol, acylate, Emulsification of Paraffin dispersant, Efficient detergent are combined by a certain percentage, colloid, pitch is can dissolve
The organic matters such as matter, wax, strengthen crude oil fluidity, may also suppress reservoir clay swell.Its main component is aromatic hydrocarbon substance, its
In detergent composition be still fluorinated surfactant.The consumption patent of cleaning de-plugging agent has no and is related to, and economy is difficult to do
Assessment.
" ethylenediamine tetra-acetic acid is the synthesis of the novel dendritic polyamide-amide of core " (synthesisization that Wang Feifei etc. is delivered
Learn), 2014,22 " synthetic method of a series of new dendritic interphase macromolecular is provided in document.According to reality
Research is tested, this dendrimer with amide-containing polar functional group and tertiary amine functional group can be used for the drip of high-content wax viscous crude
Blue or green matter dispersant.Above-mentioned polyamide-amide-Arrcostab organic compound is used for High viscosity crude pitch dispersant and has no any document
Or patent report.
The content of the invention
The present invention provides a kind of pitch of polyamide-amide-Arrcostab for High viscosity crude in view of the shortcomings of the prior art
Dispersant, the characteristics of the dispersant has heatproof, salt tolerance and viscosity-reducing performance good.
Polyamide-amide-Arrcostab is used for the pitch dispersant of High viscosity crude, it is characterised in that described pitch dispersant
It is made up of host and solvent, described host is that a kind of dendroid with multiple amide groups, ester group and amidine functional group has
Machine compound, its molecular formula is as follows：
In formula：
Described solvent is the one kind in benzene,toluene,xylene and trimethylbenzene.
Described host and solvent quality compare 1:1~99, preferably 1:9.
Polyamide-amide-Arrcostab is used for the preparation method of the pitch dispersant of High viscosity crude, comprises the following steps that：
(1) solvent for weighing aforementioned proportion is added in beaker, is heated while stirring, and the temperature of heating is 40~50 DEG C,
Heat time is 20~30min, and mixing speed is 200~300rpm, and mixing time is 10~20min, after the heat time terminates
It is naturally cooling to room temperature；
(2) host of aforementioned proportion is added in above-mentioned solvent, is heated while stirring, the temperature of heating is 50~60
DEG C, the heat time is 20~30min, and mixing speed is 300~500rpm, and mixing time is 20~30min, and the heat time terminates
After obtain mixture；
(3) said mixture is cooled to 30~40 DEG C, and at this temperature 30~40min of constant temperature, stirring 20~
30min, constant temperature time is naturally cooling to room temperature after terminating, and obtains asphaltene dispersants.
Because there are multiple amide groups polar functional groups in polyamide-amide of the present invention-alkyl ester molecule, it is easy to asphalitine phase
With reference to, and ester group feeler is then easier to be deep into asphalitine lamellar structure, and then reduce the absorption of asphalitine lamellar structure
Power；By introducing tertiary amine groups, it is had an effect with asphalitine, destroy the hydrogen bond action of asphaltene molecules key, make asphalitine
Between the enhancing of mutually exclusive power, the asphaltene molecules combined with dendrimer are difficult to interact to form big crystal, anti-
Deposition capability and decentralization are improved, and are finally reached the purpose for reducing High viscosity crude viscosity；Additionally, the asphaltene dispersants by
In with stronger polar group, can be acted synergistically with pour-point depressant, change wax crystal growth form, destroy the effect of network structure,
So as to improve the mobile performance of High viscosity crude.The presence of solvent in dispersant, with synergistic effect, enhances asphaltene molecules
With the mixability of dispersant.
The present invention has the following advantages that and beneficial effect compared with prior art：
(1) extensively, synthesis technique is simple, and process cleans are pollution-free, product for the raw material sources of pitch dispersant of the invention
It is easily obtained and transports preservation；
(2) pitch dispersant of the invention has consumption few, the characteristics of safety and stability, remarkable in economical benefits；
(3) pitch dispersant temperature resistance salt resistant character of the invention is good, and up to 220 DEG C, resistance to salinity reaches 230000mg/L to heatproof；
(4) pitch dispersant universality of the invention is good, has preferable peptizaiton to asphalitine, when consumption is
During 100ppm, the viscosity reduction by more than 85% of High viscosity crude can be made.
Specific embodiment
Technical scheme is further described with reference to specific embodiment.
Embodiment 1：Asphaltene dispersants A and preparation method thereof
(1) asphaltene dispersants A compositions and component are as follows
Host 5.0g
Solvent is benzene 5.0g
Host is a kind of dendroid organic compound with multiple amide groups, ester group and amidine functional group, its molecule
Formula is as follows：
In formula：
(2) preparation method of asphaltene dispersants A
1. the solvent benzol for weighing 5.0g is added in beaker, is heated while stirring, and the temperature of heating is 40 DEG C, heat time
Be 20min, mixing speed is 200rpm, mixing time is 15min, the heat time terminate after be naturally cooling to room temperature；
2. the host of 5.0g is added in above-mentioned solvent benzol, is heated while stirring, the temperature of heating is 55 DEG C, during heating
Between be 30min, mixing speed is 400rpm, and mixing time is 20min, the heat time terminate after obtain mixture；
3. said mixture is cooled to 30 DEG C, and constant temperature 40min, stirring 20min at this temperature, constant temperature time terminates
After be naturally cooling to room temperature, obtain asphaltene dispersants A.
Wherein, the preparation method of host, according to existing document, specific preparation method is as follows：
In formula：
Embodiment 2：Asphaltene dispersants B and preparation method thereof
(1) asphaltene dispersants B compositions and component are as follows
Host 1.0g
Solvent is trimethylbenzene 99.0g
Host is a kind of dendroid organic compound with multiple amide groups, ester group and amidine functional group, its molecule
Formula is as follows：
In formula：
(2) preparation method of asphaltene dispersants B
1. the solvent trimethylbenzene for weighing 99.0g is added in beaker, is heated while stirring, and the temperature of heating is 45 DEG C, plus
The hot time is 25min, and mixing speed is 260rpm, and mixing time is 10min, the heat time terminate after be naturally cooling to room temperature；
2. the host of 1.0g is added in above-mentioned front three benzene solvent, is heated while stirring, the temperature of heating is 50 DEG C, plus
The hot time is 25min, and mixing speed is 300rpm, and mixing time is 25min, the heat time terminate after obtain mixture；
3. said mixture is cooled to 35 DEG C, and constant temperature 35min, stirring 25min at this temperature, constant temperature time terminates
After be naturally cooling to room temperature, obtain asphaltene dispersants B.
Wherein, the preparation method of host is with reference to embodiment 1.
Embodiment 3：Asphaltene dispersants C and preparation method thereof
(1) asphaltene dispersants C compositions and component are as follows
Host 2.0g
Solvent is toluene 18.0g
Host is a kind of dendroid organic compound with multiple amide groups, ester group and amidine functional group, its molecule
Formula is as follows：
In formula：
(2) preparation method of asphaltene dispersants C
1. the solvent toluene for weighing 18.0g is added in beaker, is heated while stirring, and the temperature of heating is 50 DEG C, heating
Time is 30min, and mixing speed is 300rpm, and mixing time is 20min, the heat time terminate after be naturally cooling to room temperature；
2. the host of 2.0g is added in above-mentioned solvent toluene, is heated while stirring, the temperature of heating is 60 DEG C, heating
Time is 20min, and mixing speed is 500rpm, and mixing time is 30min, the heat time terminate after obtain mixture；
3. said mixture is cooled to 40 DEG C, and constant temperature 30min, stirring 30min at this temperature, constant temperature time terminates
After be naturally cooling to room temperature, obtain asphaltene dispersants C.
Wherein, the preparation method of host is with reference to embodiment 1.
Embodiment 4
Asphaltene dispersants A, B and C prepared by embodiment 1,2 and 3, is added to the pure beam of Shengli Oil Field and recovers the oil by 100ppm
Stirred in the High viscosity crude F that factory provides, the basic parameter of viscous crude F is as follows：Freezing point is in 53 DEG C, asphaltenes
18.5%, viscosity is (50 DEG C) 10949mPas.
Determining it according to SY/T 0520-2008 viscosity of crude bioassay standards reduces High viscosity crude F (50 DEG C) viscosity effect,
Test result is shown in Table 1.
Viscosity reducing effect of the asphaltene dispersants of table 1 to High viscosity crude F (50 DEG C)
As it can be seen from table 1 asphaltene dispersants A, B and C are when consumption is 100ppm, the pure beam of Shengli Oil Field can be made to recover the oil
The viscosity of the High viscosity crude F of factory reduces by 86.2%, 87.3% and 89.5% respectively, and reduction amplitude is all higher than 85%, wherein, pitch
The viscosity reducing effect of matter dispersing agent C is preferably up to more than 89.0%, and viscosity reducing effect is good.
Embodiment 5
Asphaltene dispersants A, B and C prepared by embodiment 1,2 and 3, is added to Shengli Oil Field Wang Jia hilllocks and adopts by 100ppm
Stirred in the High viscosity crude G that oily factory provides, the basic parameter of viscous crude G is as follows：Freezing point is in 47 DEG C, asphaltenes
16.8%, viscosity is (50 DEG C) 5686mPas.
Determining it according to SY/T 0520-2008 viscosity of crude bioassay standards reduces High viscosity crude G (50 DEG C) viscosity effect,
Test result is shown in Table 2.
Viscosity reducing effect of the asphaltene dispersants of table 2 to High viscosity crude G (50 DEG C)
From table 2 it can be seen that asphaltene dispersants A, B and C are when consumption is 100ppm, the pure beam of Shengli Oil Field can be made to recover the oil
The viscosity of the High viscosity crude G of factory reduces by 86.5%, 87.0% and 88.2% respectively, and reduction amplitude is all higher than 85%；Wherein, pitch
The viscosity reducing effect of matter dispersing agent C is preferably up to more than 88.0%, and viscosity reducing effect is good.
Embodiment 6
Asphaltene dispersants A, B and C prepared by embodiment 1,2 and 3, is added to the existing river of Shengli Oil Field and recovers the oil by 100ppm
Stirred in the High viscosity crude H that factory provides, the basic parameter of viscous crude H is as follows：Freezing point is in 55 DEG C, asphaltenes
20.5%, viscosity is (50 DEG C) 25605mPas.
Determining it according to SY/T 0520-2008 viscosity of crude bioassay standards reduces High viscosity crude H (50 DEG C) viscosity effect,
Test result is shown in Table 3.
Viscosity reducing effect of the asphaltene dispersants of table 3 to High viscosity crude H (50 DEG C)
From table 3 it can be seen that asphaltene dispersants A, B and C are when consumption is 100ppm, the pure beam of Shengli Oil Field can be made to recover the oil
The viscosity of the High viscosity crude H of factory reduces by 85.7%, 86.4% and 89.0% respectively, and reduction amplitude is all higher than 85%, wherein, pitch
The viscosity reducing effect of matter dispersing agent C is preferably up to 89.0%, and viscosity reducing effect is good.
In sum, asphaltene dispersants of the present invention have asphalitine peptizaiton to various High viscosity crudes, can
Make the viscosity reduction by more than 85% of High viscosity crude F, G and H, wherein, the mass ratio of host and solvent is 1：Viscosity break ratio reaches when 9
More than 88%, illustrate the pitch peptizaiton of the asphaltene dispersants preferably, meanwhile, this asphaltene dispersants addition is few, into
This is low, and synthetic method is simple, can meet situ extraction and conveying of High viscosity crude etc. and require.
Claims (4)
1. polyamide-amide-Arrcostab be used for High viscosity crude pitch dispersant, it is characterised in that described pitch dispersant by
Host and solvent are constituted, and described host is that a kind of dendroid with multiple amide groups, ester group and amidine functional group is organic
Compound, its molecular formula is as follows：
In formula：
Described solvent is the one kind in benzene,toluene,xylene and trimethylbenzene.
2. polyamide-amide-Arrcostab according to claim 1 is used for the pitch dispersant of High viscosity crude, it is characterised in that
Described host and solvent quality compare 1:1~99.
3. polyamide-amide-Arrcostab according to claim 2 is used for the pitch dispersant of High viscosity crude, it is characterised in that
Described host and solvent quality ratio are 1:9.
4. polyamide-amide-the Arrcostab according to claim 1-3 any one claims is used for the pitch point of High viscosity crude
The preparation method of powder, it is characterised in that described preparation method specifically includes following steps：
(1) solvent for weighing aforementioned proportion is added in beaker, is heated while stirring, and the temperature of heating is 40~50 DEG C, heating
Time is 20~30min, and mixing speed is 200~300rpm, and mixing time is 10~20min, and the heat time terminates rear natural
It is cooled to room temperature；
(2) host of aforementioned proportion is added in above-mentioned solvent, is heated while stirring, the temperature of heating is 50~60 DEG C, plus
The hot time be 20~30min, mixing speed be 300~500rpm, mixing time be 20~30min, the heat time terminate after
To mixture；
(3) said mixture is cooled to 30~40 DEG C, and 30~40min of constant temperature, 20~30min of stirring, perseverance at this temperature
The warm time is naturally cooling to room temperature after terminating, and obtains asphaltene dispersants.
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| CN201710044314.5A CN106833578B (en) | 2017-01-19 | 2017-01-19 | Polyamid-amine-alkyl ester bitumen dispersants for high-viscosity oils |
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Cited By (4)
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| CN110776606A (en) * | 2019-10-31 | 2020-02-11 | 西南石油大学 | Modified chitosan/nitrogen-oxygen branched monomer functional polymer and preparation method and application thereof |
| CN113480446A (en) * | 2021-05-27 | 2021-10-08 | 佳化化学科技发展（上海）有限公司 | Amine compound, polymer polyol, and preparation method and application thereof |
| CN114075120A (en) * | 2021-10-27 | 2022-02-22 | 深圳飞世尔新材料股份有限公司 | PH stabilizer, preparation method thereof, cleaning agent for molybdenum-aluminum-molybdenum coated glass and preparation method thereof |
| CN117285708A (en) * | 2023-11-24 | 2023-12-26 | 西南石油大学 | Asphaltene dispersion stabilizer and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110776606A (en) * | 2019-10-31 | 2020-02-11 | 西南石油大学 | Modified chitosan/nitrogen-oxygen branched monomer functional polymer and preparation method and application thereof |
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| CN114075120A (en) * | 2021-10-27 | 2022-02-22 | 深圳飞世尔新材料股份有限公司 | PH stabilizer, preparation method thereof, cleaning agent for molybdenum-aluminum-molybdenum coated glass and preparation method thereof |
| CN114075120B (en) * | 2021-10-27 | 2024-01-23 | 深圳飞世尔新材料股份有限公司 | PH stabilizer, preparation method thereof, cleaning agent for molybdenum-aluminum-molybdenum coated glass and preparation method thereof |
| CN117285708A (en) * | 2023-11-24 | 2023-12-26 | 西南石油大学 | Asphaltene dispersion stabilizer and preparation method thereof |
| CN117285708B (en) * | 2023-11-24 | 2024-01-30 | 西南石油大学 | Asphaltene dispersion stabilizer and preparation method thereof |
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