CN107227148A - A kind of micro emulsion transfer drive system prepared by raw material of swill oil - Google Patents
A kind of micro emulsion transfer drive system prepared by raw material of swill oil Download PDFInfo
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- CN107227148A CN107227148A CN201710428858.1A CN201710428858A CN107227148A CN 107227148 A CN107227148 A CN 107227148A CN 201710428858 A CN201710428858 A CN 201710428858A CN 107227148 A CN107227148 A CN 107227148A
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- 239000004530 micro-emulsion Substances 0.000 title claims abstract description 21
- 239000002994 raw material Substances 0.000 title claims abstract description 21
- 239000000839 emulsion Substances 0.000 claims abstract description 47
- 239000004094 surface-active agent Substances 0.000 claims abstract description 7
- 125000000129 anionic group Chemical group 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000003995 emulsifying agent Substances 0.000 claims description 24
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 19
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- 238000002360 preparation method Methods 0.000 claims description 11
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- 230000009286 beneficial effect Effects 0.000 abstract 1
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- XGHYKIDVGYYHDC-JBDRJPRFSA-N Cys-Ile-Cys Chemical compound CC[C@H](C)[C@@H](C(=O)N[C@@H](CS)C(=O)O)NC(=O)[C@H](CS)N XGHYKIDVGYYHDC-JBDRJPRFSA-N 0.000 description 1
- CLNSYANKYVMZNM-UWVGGRQHSA-N Gly-Lys-Arg Chemical compound NCCCC[C@H](NC(=O)CN)C(=O)N[C@H](C(O)=O)CCCN=C(N)N CLNSYANKYVMZNM-UWVGGRQHSA-N 0.000 description 1
- OCRQUYDOYKCOQG-IRXDYDNUSA-N Gly-Tyr-Phe Chemical compound C([C@H](NC(=O)CN)C(=O)N[C@@H](CC=1C=CC=CC=1)C(O)=O)C1=CC=C(O)C=C1 OCRQUYDOYKCOQG-IRXDYDNUSA-N 0.000 description 1
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- KCFKKAQKRZBWJB-ZLUOBGJFSA-N Ser-Cys-Ala Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](CS)C(=O)N[C@@H](C)C(O)=O KCFKKAQKRZBWJB-ZLUOBGJFSA-N 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 108010016616 cysteinylglycine Proteins 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
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- 239000008398 formation water Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 239000000178 monomer Substances 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- -1 stearic acid ester Chemical class 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
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Classifications
-
- 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
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/28—Friction or drag reducing additives
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
Abstract
The invention discloses a kind of micro emulsion transfer drive system prepared by raw material of swill oil, the raw material of the transfer drive system includes swill oil pretreatment fluid, and HLB value is less than 6 anionic, non-ionic or compound surfactant.Have the beneficial effect that:The raw material of the present invention can be designed through Over emulsfication formation WO emulsion, its drop size according to the pore-size of injection oil reservoir.The emulsion droplet size being typically designed out is more than pore throat size, and such emulsion can effectively block venturi, produce Jamin effect, subsequent fluid is occurred fluid diversion, and then expand swept volume.Simultaneously because being Water-In-Oil class emulsion, meet water and produce larger flow resistance, meeting oil, then flow resistance changes little, serves selective water plugging profile control effect of the water blockoff without blocking up oil, therefore the present invention is that profile control and water plugging that can be selective can realize the secondary transfer drive system utilized of swill oil again.
Description
Technical field
The present invention relates to oil-gas mining field, specifically a kind of micro emulsion transfer drive body prepared by raw material of swill oil
System.
Background technology
Swill oil is commonly called as gutter oil, is all kinds of poor oils produced in human lives, by high-temperature cooking, forms a variety of
Carcinogen, it is impossible to eat again.But because it can neither eat, hesitate to discard.If it is converted into industrial available material, no
It can only turn waste into wealth, be also prevented from it and flow back to catering trade again.
While waterflooding oil field, well water is a common problem, and injection fluid communication, which is one, to be needed to solve
Problem.Water yield formation and production water direction are timely and accurately verified, takes profile control, water blockoff measure to be very important.Current oil field is normal
Transfer drive system mainly has polymerization species, microballoon class, emulsion class, and various systems have the advantage of oneself, also have accordingly not
Foot, further, since the limitation of economic benefit, it is desirable to which transfer drive system consumption is controlled in certain limit, causes transfer drive radius and effective
Phase is limited.Had no in currently available technology is used for the related report for the profile control agent that oil field is produced about utilizing swill oil to prepare emulsion
Road.
Prior art such as Authorization Notice No. is the B of CN 104277175 Chinese invention patent, discloses a kind of polyacrylamide
Amine reverse micro emulsion transfer drive system, is under the effect of redox composite initiator, to be made by the aggregated reaction of reverse micro emulsion
's;Described reverse micro emulsion, with parts by weight, includes following component:1)10 ~ 70 parts of oil-based solvent;2)1 ~ 25 part
Emulsifying agent;3)0.01 ~ 15 part of hydrophobic monomer;4)5 ~ 60 parts of acrylamides;5)1 ~ 40 part of water-soluble temperature-resistant anti-salt list
Body;6)0.001 ~ 5 part of crosslinking agent;7)10 ~ 60 parts of water.Above-mentioned transfer drive system may expand in high temperature and high salinity salt solution,
Stability is preferable, but the preparation cost of the adjustment and control system is higher, and water blockoff, deep profile controlling and Flooding Efficiency are undesirable, to crude oil
Recovery ratio has much room for improvement.
The content of the invention
It is an object of the invention to provide a kind of selective shut-off for not blocking up oil with water blockoff, water plugging effect is good, can drop
Low oil water interfacial tension, the microemulsion transfer drive system prepared by raw material of swill oil of the high advantage of oil displacement efficiency.
The present invention is directed to the problem of being mentioned in background technology, and the technical scheme taken is:One kind is using swill oil as raw material system
Standby micro emulsion transfer drive system is that HLB value is less than the WO emulsion that 6 surfactant and swill oil are mixed to form.
A kind of preparation method of the micro emulsion transfer drive system prepared by raw material of swill oil comprises the following steps:It will locate in advance
Swill oil after reason or the swill oil sold on the market are added in emulsifier solution, add active peptides, the ammonia of active peptides
Base acid sequence is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.After mixing Water-In-Oil is prepared into ultrasonic homogenizer
Type emulsion.Above-mentioned active peptides are respectively provided with good compatibility with swill oil and emulsifying agent, and active peptides are attached to swill oil
With the water-in-oil emulsion molecular surface of emulsifying agent formation, the hydrophobicity of WO emulsion can be remarkably reinforced, oil bag is improved
The water plugging property of water type emulsion.Size Distribution, stability and interfacial tension to emulsion are measured, it is desirable to which emulsion is put down
Equal particle diameter is more than target reservoir pore throat mean radius, and emulsion can keep syneresis rate in 15 days to be less than at a temperature of target reservoir
20%, interfacial tension is less than 10-3mN/m.Mentioned emulsifier solution is the anionic, non-ionic or compound that HLB value is less than 6
Surfactant.Emulsifier solution is 6 with swill oil volume ratio:3~6:1.The content of emulsifying agent is 0.3%- in emulsifier solution
0.7%.The working frequency of ultrasonic homogenizer is 2.5 ~ 4kHZ, and the working time is 20 ~ 40min.The pretreatment operation of swill oil
For:The swill oil produced in life is collected, sedimentation filtration obtains the oil product that triglyceride content is higher than 80%.
The WO emulsion of swill oil formation in migration process, can reduce crude oil in rock wall in the earth formation
Adhesion work, remaining oil is peeled off, and is run into after residual oil oil droplet, can be reduced oil water interfacial tension, be made oil droplet more yielding,
Free remaining oil can be restarted, so as to increase oil displacement efficiency;The emulsion droplet of greater particle size runs into less venturi
During radius, due to Jamin effect, producing larger resistance makes subsequent fluid occur fluid diversion, expands swept volume, and by
In for WO emulsion, foreign minister is oil phase, and it is smaller to meet flow resistance change after oil, but meets flow resistance after water and become big, because
This can realize that water blockoff does not block up the selective shut-off of oil.
Compared with prior art, the advantage of the invention is that:1)Using swill oil as raw material, can both reduce original collection into
This, can realize the secondary utilization of swill oil again;2)Amino acid sequence is added in preparation process is
SCASRCKSRRARRCRARRCGYFGKRCICKCFRC active peptides, the WO emulsion prepared has water blockoff
The selective shut-off of oil is not blocked up, and water plugging property is excellent, can be deep into oil-containing low infiltration layer, can also reduce oil-water interfaces
Power, makes oil droplet more yielding, and free remaining oil can be restarted, the acquisition rate of crude oil and free crude oil to well deep part
It is high.
Specific embodiment
The present invention program is described further below by embodiment:
Embodiment 1:
A kind of micro emulsion transfer drive system prepared by raw material of swill oil is surfactant and swill oil of the HLB value less than 6
The WO emulsion being mixed to form.
A kind of preparation method of the micro emulsion transfer drive system prepared by raw material of swill oil comprises the following steps:It will locate in advance
Swill oil after reason or the swill oil sold on the market are added in emulsifier solution, add active peptides, the ammonia of active peptides
Base acid sequence is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.After mixing Water-In-Oil is prepared into ultrasonic homogenizer
Type emulsion.Above-mentioned active peptides are respectively provided with good compatibility with swill oil and emulsifying agent, and active peptides are attached to swill oil
With the water-in-oil emulsion molecular surface of emulsifying agent formation, the hydrophobicity of WO emulsion can be remarkably reinforced, oil bag is improved
The water plugging property of water type emulsion.Size Distribution, stability and interfacial tension to emulsion are measured, it is desirable to which emulsion is put down
Equal particle diameter is more than target reservoir pore throat mean radius, and emulsion can keep syneresis rate in 15 days to be less than at a temperature of target reservoir
20%, interfacial tension is less than 10-3mN/m.Mentioned emulsifier solution is the anionic, non-ionic or compound that HLB value is less than 6
Surfactant.Emulsifier solution is 6 with swill oil volume ratio:3~6:1.The content of emulsifying agent is 0.3%- in emulsifier solution
0.7%.The working frequency of ultrasonic homogenizer is 2.5 ~ 4kHZ, and the working time is 20 ~ 40min.The pretreatment operation of swill oil
For:The swill oil produced in life is collected, sedimentation filtration obtains the oil product that triglyceride content is higher than 80%.
The WO emulsion of swill oil formation in migration process, can reduce crude oil in rock wall in the earth formation
Adhesion work, remaining oil is peeled off, and is run into after residual oil oil droplet, can be reduced oil water interfacial tension, be made oil droplet more yielding,
Free remaining oil can be restarted, so as to increase oil displacement efficiency;The emulsion droplet of greater particle size runs into less venturi
During radius, due to Jamin effect, producing larger resistance makes subsequent fluid occur fluid diversion, expands swept volume, and by
In for WO emulsion, foreign minister is oil phase, and it is smaller to meet flow resistance change after oil, but meets flow resistance after water and become big, because
This can realize that water blockoff does not block up the selective shut-off of oil.
Embodiment 2:
Configuration quality fraction is 0.5% fatty acid sorbitan solution, by it by volume 7 with the swill oil sold on the market:3
Mixing, adds active peptides, the amino acid sequence of active peptides is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.
After mixing WO emulsion is prepared into ultrasonic homogenizer.Above-mentioned active peptides are respectively provided with good with swill oil and emulsifying agent
Good compatibility, active peptides are attached to the water-in-oil emulsion molecular surface of swill oil and emulsifying agent formation, can be remarkably reinforced
The hydrophobicity of WO emulsion, improves the water plugging property of WO emulsion.Size Distribution, stability to emulsion
And interfacial tension is measured, it is desirable to which emulsion average grain diameter is more than target reservoir pore throat mean radius, and target reservoir temperature
The lower emulsion of degree can keep syneresis rate in 15 days to be less than 20%, and interfacial tension is less than 10-3mN/m.The work frequency of ultrasonic homogenizer
Rate is 3kHZ, and the working time is 26min.The WO emulsion of above-mentioned swill oil formation, can in the earth formation in migration process
To reduce adhesion work of the crude oil in rock wall, remaining oil is peeled off, and run into after residual oil oil droplet, profit circle can be reduced
Face tension force, makes oil droplet more yielding, and free remaining oil can be restarted, so as to increase oil displacement efficiency;The breast of greater particle size
When shape liquid drop runs into less throat radius, due to Jamin effect, producing larger resistance makes subsequent fluid occur liquid circulation
To, expand swept volume, and because for WO emulsion, foreign minister is oil phase, it is smaller to meet flow resistance change after oil, but
Meet flow resistance after water and become big, therefore can realize that water blockoff does not block up the selective shut-off of oil.
Embodiment 3:
Configuration quality fraction is that 0.5% HLB value is less than 6 polyglycereol stearic acid ester solution, by itself and pretreated swill oil
By volume 7:3 mixing, add active peptides, the amino acid sequence of active peptides is
SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.After mixing WO emulsion is prepared into ultrasonic homogenizer.On
State active peptides and be respectively provided with good compatibility with swill oil and emulsifying agent, active peptides are attached to swill oil and emulsifying agent is formed
Water-in-oil emulsion molecular surface, can be remarkably reinforced the hydrophobicity of WO emulsion, improve WO emulsion
Water plugging property.Size Distribution, stability and interfacial tension to emulsion are measured, it is desirable to which emulsion average grain diameter is more than mesh
Pore throat in reservoirs mean radius is marked, and emulsion can keep syneresis rate in 15 days to be less than 20%, interfacial tension at a temperature of target reservoir
Less than 10-3mN/m.The working frequency of ultrasonic homogenizer is 3kHZ, and the working time is 26min.The oil bag of above-mentioned swill oil formation
Water type emulsion in migration process, can reduce adhesion work of the crude oil in rock wall, remaining oil is peeled off in the earth formation, and
Run into after residual oil oil droplet, oil water interfacial tension can be reduced, make oil droplet more yielding, free remaining oil can be opened again
It is dynamic, so as to increase oil displacement efficiency;When the emulsion droplet of greater particle size runs into less throat radius, due to Jamin effect, production
Raw larger resistance makes subsequent fluid occur fluid diversion, expands swept volume, and due to for WO emulsion, foreign minister
For oil phase, meet flow resistance after oil and change smaller, but meet flow resistance after water and become big, therefore can realize that water blockoff does not block up oily selection
Property seal-off effect.The pretreatment operation of swill oil is:The swill oil produced in life is collected, sedimentation filtration obtains triglyceride and contained
Oil product of the amount higher than 80%.
Routine operation in the operating procedure of the present invention is well known to those skilled in the art, herein without repeating.
Technical scheme is described in detail embodiment described above, it should be understood that it is described above only
For the specific embodiment of the present invention, it is not intended to limit the invention, all any modifications made in the spirit of the present invention,
Supplement or similar fashion replacement etc., should be included in the scope of the protection.
SEQUENCE LISTING
<110>Zhejiang Ocean university
<120>A kind of micro emulsion transfer drive system prepared by raw material of swill oil
<130> 1
<160> 1
<170> PatentIn version 3.5
<210> 1
<211> 33
<212> PRT
<213>It is artificial synthesized
<400> 1
Ser Cys Ala Ser Arg Cys Lys Ser Arg Arg Ala Arg Arg Cys Arg Ala
1 5 10 15
Arg Arg Cys Gly Tyr Phe Gly Lys Arg Cys Ile Cys Lys Cys Phe Arg
20 25 30
Cys
Claims (8)
1. a kind of micro emulsion transfer drive system prepared by raw material of swill oil, it is characterised in that:Described transfer drive system is HLB
Value is less than the WO emulsion that 6 surfactant and swill oil are mixed to form.
2. a kind of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 1, it is characterised in that:
The preparation method of described transfer drive system comprises the following steps:Pretreated swill oil or the swill oil sold on the market are added
Into emulsifier solution, active peptides are added, emulsion is prepared into after mixing with ultrasonic homogenizer, and to the chi of emulsion
Very little distribution, stability and interfacial tension are measured.
3. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2,
It is characterized in that:The amino acid sequence of described active peptides is SCASRCKSRRARRCRARRCGYFGKRCICKCFRC.
4. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2,
It is characterized in that:Described emulsifier solution is that HLB value is less than 6 anionic, non-ionic or compound surfactant.
5. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2,
It is characterized in that:Described emulsifier solution is 6 with swill oil volume ratio:3~6:1.
6. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2,
It is characterized in that:The content of emulsifying agent is 0.3%-0.7% in described emulsifier solution.
7. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2,
It is characterized in that:The working frequency of described ultrasonic homogenizer is 2.5 ~ 4kHZ, and the working time is 20 ~ 40min.
8. a kind of preparation method of micro emulsion transfer drive system prepared by raw material of swill oil according to claim 2,
It is characterized in that:The pretreatment operation of described swill oil is:The swill oil produced in life is collected, sedimentation filtration obtains sweet
Oily three fat contents are higher than 80% oil product.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107779186A (en) * | 2017-07-10 | 2018-03-09 | 浙江海洋大学 | Trench oil emulsion transfer drive |
Citations (6)
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