CN108559470A - A kind of self-emulsifying heavy crude thinner and its preparation method and application - Google Patents
A kind of self-emulsifying heavy crude thinner and its preparation method and application Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 27
- 239000003381 stabilizer Substances 0.000 claims abstract description 21
- -1 alkyl phenol ether sulfosuccinic acid ester sodium salt Chemical class 0.000 claims abstract description 11
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 5
- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000007795 chemical reaction product Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 7
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 6
- 229920002310 Welan gum Polymers 0.000 claims description 6
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 6
- 229920001285 xanthan gum Polymers 0.000 claims description 6
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 235000019253 formic acid Nutrition 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000012986 modification Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 3
- 239000004342 Benzoyl peroxide Substances 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 2
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 2
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 2
- KOUONPVXNPOEHQ-UHFFFAOYSA-N 2-[dimethoxy(propyl)silyl]oxyacetamide Chemical compound CCC[Si](OC)(OC)OCC(N)=O KOUONPVXNPOEHQ-UHFFFAOYSA-N 0.000 claims 1
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims 1
- 239000005977 Ethylene Substances 0.000 claims 1
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- 125000003158 alcohol group Chemical group 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000001603 reducing effect Effects 0.000 abstract description 4
- 239000010779 crude oil Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 description 14
- 230000000694 effects Effects 0.000 description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- YNJSNEKCXVFDKW-UHFFFAOYSA-N 3-(5-amino-1h-indol-3-yl)-2-azaniumylpropanoate Chemical compound C1=C(N)C=C2C(CC(N)C(O)=O)=CNC2=C1 YNJSNEKCXVFDKW-UHFFFAOYSA-N 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- LRMHFDNWKCSEQU-UHFFFAOYSA-N ethoxyethane;phenol Chemical compound CCOCC.OC1=CC=CC=C1 LRMHFDNWKCSEQU-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 239000007764 o/w emulsion Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000035935 pregnancy Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- RUPAXCPQAAOIPB-UHFFFAOYSA-N tert-butyl formate Chemical compound CC(C)(C)OC=O RUPAXCPQAAOIPB-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a kind of heavy crude thinners, are made by the component of following parts by weight：Modified manometer silicon dioxide, alkyl phenol ether sulfosuccinic acid ester sodium salt, acrylamide, peroxidized t-butyl perbenzoate and stabilizer weight ratio be 92~96:3~4:1~3:0.5:0.02~1；Also disclose the preparation method and application of the heavy crude thinner.Preparation method of the present invention is simple for process, easily operated, at low cost, production efficiency is high, industrialized production easy to implement；The product viscosity reducing effect of the present invention is good, has a wide range of application, highly practical, improves the recovery ratio of crude oil, obtains preferable economic benefit and social benefit.
Description
Technical field
The invention belongs to technical field of petroleum extraction more particularly to a kind of self-emulsifying heavy crude thinner and preparation method thereof and
Using.
Background technology
Fewer and fewer for the conventional oil of exploitation as consumption of petroleum amount is increasing, therefore, thickened oil recovery becomes people
The extremely urgent problem to be solved of class.Viscous crude is a kind of multi-component homogeneous organic mixture of complexity, colloid and asphalitine
Content is high, light components content is low, straight chain hydrocarbon content is few, viscosity height, energy of flow force difference, therefore viscous crude is in pit shaft and ground transport
Poor fluidity in pipeline leads to thickened oil recovery, collects defeated and processing difficulties.Currently, traditional viscosity reducing process has：It is heating, dilute
Interpretation of the law etc., emerging viscosity reduction technology have：Electromagnetic wave viscosity reduction method, microorganism viscosity reduction method etc., these methods more or less all have one
Fixed drawback.Chemical viscosity reduction technology is not lost in thickened oil recovery, lifting, the use technology during collection is defeated using heavy crude thinner viscosity reduction
For a kind of effective low cost, the chemical viscosity reduction method of low energy consumption, main function mechanism is exactly to make thinner aqueous solution
Oil-in-water emulsion is formed with viscous crude, to reduce viscosity of thickened oil.Since its is simple for process, significant effect, potentiality are infinite, at
For the hot spot studied both at home and abroad.
Therefore, it in order to higher improve recovery factor of heavy oil reservoir, needs further to develop the new viscous crude drop being simple and efficient
Stick.
Invention content：
The present invention first purpose be：A kind of self-emulsifying heavy crude thinner is provided, which imitates with product viscosity reduction
Fruit is good, does not need external mechanical force effect, has a wide range of application, highly practical effect.
Second object of the present invention is：A kind of preparation method of the self-emulsifying heavy crude thinner, this method technique are provided
Simply, easily operated, at low cost, production efficiency is high.
Third object of the present invention is：The self-emulsifying heavy crude thinner practical application is provided.
In order to solve the above technical problems, the technical scheme is that：
A kind of self-emulsifying heavy crude thinner, is made by the component of following parts by weight：Modified manometer silicon dioxide, alkyl phenol ether
Sulfosuccinic acid ester sodium salt, acrylamide, peroxidized t-butyl perbenzoate and stabilizer weight ratio be 92~96:3~4:1~
3:0.5:0.02~1.
Preferably, the self-emulsifying heavy crude thinner is made by the component of following parts by weight：Modified manometer silicon dioxide,
Alkyl phenol ether sulfosuccinic acid ester sodium salt, acrylamide, peroxidized t-butyl perbenzoate and stabilizer weight ratio be 94:4:2:
0.5:0.05。
Preferably, the stabilizer is welan gum, hydrolyzed polyacrylamide, xanthans and sodium carboxymethylcellulose
One or more of (CMC).
A kind of preparation method of self-emulsifying heavy crude thinner, includes the following steps：
A. the modification of silica：The propyl alcohol that parts by weight are 3~5 parts is added in a reservoir, is 4.5 with formic acid tune pH, so
The water that 0.5~1.5 parts by weight are added afterwards is uniformly mixed, and the diethylenetriamine base propyl of 1.5~2.5 parts by weight is added while stirring
The hexamethyldisilazane of trimethoxy silane and 0.5~1.5 parts by weight, makes it be fully hydrolyzed, and obtains modifying agent；By 80~90
The silica of parts by weight is added in the deionized water of 1000 parts by weight, and the modifying agent of 10~20 parts by weight is then added, and is risen
Reaction product is put 100 DEG C of drying, obtains improved silica by warm back flow reaction 3~6 hours；
B. the synthesis of self-emulsifying heavy crude thinner：The improved silica of 92~96 parts by weight is added to 500 parts by weight
Absolute ethyl alcohol in, then be added 3~5 parts by weight alkyl phenol ether sulfosuccinic acid ester sodium salt and 1~3 parts by weight acryloyl
Amine, stirring and dissolving are warming up to 70 DEG C, displace the air in reaction system with nitrogen, and the benzoyl peroxide of 0.5 parts by weight is added
T-butyl formate reacts 3~4 hours, the stabilizer of 0.02~1 parts by weight is then added, reaction product is centrifuged, is washed
It washs, be drying to obtain self-emulsifying heavy crude thinner.
Preferably, the propyl alcohol parts by weight in the step a are 4 parts, and the parts by weight of water are 1 part.
Preferably, the parts by weight of the diethylenetriamine base propyl trimethoxy silicane in the step a are 2 parts, pregnancy
The parts by weight of base disilazane are 1 part.
Preferably, the parts by weight of silica are 85 parts in the step a, and the parts by weight of modifying agent are 15 parts.
Preferably, the stabilizer is that two or more component is mixed when mixing with arbitrary weight ratio.
Self-emulsifying heavy crude thinner is applied during reducing thick oil viscosity：
Self-emulsifying heavy crude thinner of the present invention can be applied in 40~110 DEG C of viscous crude or special thick oil, additive amount 100
~50000ppm, further preferably 200~10000ppm.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, the modified nano silicon dioxide of this method can by hydrophobic grouping in organic phase fine dispersion and logical
It crosses silicone hydroxyl and forms strong interaction with organic phase, built between the inorganic phase synthetic silica and organic phase that keep this incompatible
Vertical firm contact, achievees the purpose that reinforcement.
2, this method utilizes modified silica uniqueness physical chemical characteristics, and introduces alkyl phenol ether sulfosuccinate sodium
Polar group in salt and acrylamide can effectively improve portion's structure in viscous crude, to play the role of viscosity reduction.
3, product made from this method can be stirred from contact emulsification, when use without external mechanical power, rapid drop
Low oil water interfacial tension makes viscous crude in stratum be changed into the emulsified state with water for foreign minister from the emulsified state of Water-In-Oil, makes
Viscosity of Heavy Crude Oil is greatly lowered, and recovery ratio significantly improves.
4, the stabilizer added in this method can make the present invention significantly improve the resistance to temperature change, can be in height
Viscosity reduction efficiency is kept in warm viscous crude, and significantly reduces the adding proportion of thinner in special thick oil viscosity reduction.
In short, preparation method of the present invention is simple for process, easily operated, at low cost, production efficiency is high, industrialization easy to implement
Production；The product viscosity reducing effect of the present invention is good, has a wide range of application, highly practical, improves the recovery ratio of crude oil, obtains preferable
Economic benefit and social benefit.
Specific implementation mode
Technical scheme of the present invention is further described with reference to embodiment：
Embodiment one:Self-emulsifying heavy crude thinner prepares one
A. the modification of silica：The propyl alcohol that parts by weight are 3 parts is added in a reservoir, is 4.5 with formic acid tune pH, then adds
Enter 0.5 parts by weight water be uniformly mixed, be added while stirring 1.5 parts by weight diethylenetriamine base propyl trimethoxy silicane and
The hexamethyldisilazane of 0.5 parts by weight, makes it be fully hydrolyzed, and obtains modifying agent；The silica of 80 parts by weight is added to
In the deionized water of 1000 parts by weight, the modifying agent of 20 parts by weight is then added, temperature rising reflux reacts 3 hours, by reaction product
100 DEG C of drying are put, improved silica is obtained；
B. the synthesis of self-emulsifying heavy crude thinner：The improved silica of 92 parts by weight is added to the nothing of 500 parts by weight
In water-ethanol, the acrylamide of the alkyl phenol ether sulfosuccinic acid ester sodium salt and 3 parts by weight of 5 parts by weight is then added, stirring is molten
Solution, is warming up to 70 DEG C, displaces the air in reaction system with nitrogen, and the tertiary fourth of perbenzoic acid of 0.5 parts by weight is added
Ester reacts 3 hours, stabilizer (welan gum, hydrolyzed polyacrylamide, xanthans and the carboxymethyl of 0.02 parts by weight is then added
The weight ratio of sodium cellulosate is 1:1:1:1), reaction product is centrifuged, is washed, is drying to obtain self-emulsifying heavy crude thinner.
Embodiment two：Self-emulsifying heavy crude thinner prepares two
A. the modification of silica：The propyl alcohol that parts by weight are 5 parts is added in a reservoir, is 4.5 with formic acid tune pH, then adds
Enter 1.5 parts by weight water be uniformly mixed, be added while stirring 2.5 parts by weight diethylenetriamine base propyl trimethoxy silicane and
The hexamethyldisilazane of 1.5 parts by weight, makes it be fully hydrolyzed, and obtains modifying agent；The silica of 90 parts by weight is added to
In the deionized water of 1000 parts by weight, the modifying agent of 10 parts by weight is then added, temperature rising reflux reacts 6 hours, by reaction product
100 DEG C of drying are put, improved silica is obtained；
B. the synthesis of self-emulsifying heavy crude thinner：The improved silica of 96 parts by weight is added to the nothing of 500 parts by weight
In water-ethanol, the acrylamide of the alkyl phenol ether sulfosuccinic acid ester sodium salt and 1 parts by weight of 3 parts by weight is then added, stirring is molten
Solution, is warming up to 70 DEG C, displaces the air in reaction system with nitrogen, and the tertiary fourth of perbenzoic acid of 0.5 parts by weight is added
Ester reacts 4 hours, stabilizer (welan gum, the weight ratio of hydrolyzed polyacrylamide and xanthans of 0.6 parts by weight is then added
It is 2:1:1), reaction product is centrifuged, is washed, is drying to obtain self-emulsifying heavy crude thinner.
Embodiment three：The preparation three of self-emulsifying heavy crude thinner
A. the modification of silica：The propyl alcohol that parts by weight are 4 parts is added in a reservoir, is 4.5 with formic acid tune pH, then adds
The water for entering 1 parts by weight is uniformly mixed, and the diethylenetriamine base propyl trimethoxy silicane and 1 weight of 2 parts by weight are added while stirring
The hexamethyldisilazane for measuring part, makes it be fully hydrolyzed, obtains modifying agent；The silica of 85 parts by weight is added to 1000 weights
In the deionized water for measuring part, the modifying agent of 15 parts by weight is then added, temperature rising reflux reacts 4.5 hours, and reaction product is put 100
DEG C drying, obtain improved silica；
B. the synthesis of self-emulsifying heavy crude thinner：The improved silica of 94 parts by weight is added to the nothing of 500 parts by weight
In water-ethanol, the acrylamide of the alkyl phenol ether sulfosuccinic acid ester sodium salt and 2 parts by weight of 4 parts by weight is then added, stirring is molten
Solution, is warming up to 70 DEG C, displaces the air in reaction system with nitrogen, and the tertiary fourth of perbenzoic acid of 0.5 parts by weight is added
Ester reacts 3.5 hours, and the stabilizers of 0.05 parts by weight is then added, and (welan gum and the weight ratio of hydrolyzed polyacrylamide are 4:
1), reaction product is centrifuged, is washed, is drying to obtain self-emulsifying heavy crude thinner.
Example IV：The preparation four of self-emulsifying heavy crude thinner
In addition to stabilizer component and content change, other same embodiments three, the stabilizer of 0.05 parts by weight of addition,
Its component and content are that the weight ratio of hydrolyzed polyacrylamide and xanthans is 1:3, reaction product is centrifuged, washing, is done
Dry self-emulsifying heavy crude thinner to obtain the final product.
Embodiment five：The preparation five of self-emulsifying heavy crude thinner
In addition to stabilizer component and content change, other same embodiments three, the stabilizer of 0.05 parts by weight of addition,
Its component and content are that the weight ratio of hydrolyzed polyacrylamide and xanthans is 1:3, reaction product is centrifuged, washing, is done
Dry self-emulsifying heavy crude thinner to obtain the final product.
Embodiment six：The preparation six of self-emulsifying heavy crude thinner
In addition to stabilizer component and content change, other same embodiments three, the stabilizer of 0.05 parts by weight of addition,
Its component is only welan gum, and reaction product is centrifuged, is washed, is drying to obtain self-emulsifying heavy crude thinner.
Embodiment seven：The measure of merit of self-emulsifying heavy crude thinner
What is manufactured under the self-emulsifying heavy crude thinner (present invention) and similarity condition of three gained of Example is free of stabilizer
Heavy crude thinner and the heavy crude thinner (reference examples) bought in the market be compared experiment, it is viscous to be added separately to oil sample
Degree is that the viscous crude of 19280mPas is added in container, and the additive amount of heavy crude thinner is similarly 300ppm, in different temperature
Lower progress viscosity reduction experiment.It the results are shown in Table 1：
The effect analysis of thinner under 1 different temperatures of table
The dehydration rate (T=40 DEG C) of 2 emulsifier of table at any time
Embodiment eight：The production application of self-emulsifying heavy crude thinner
The field application of the present invention is carried out in a certain reservoir region individual well of Shengli Oil Field.Its oil component is taken to be analyzed such as
Under：Oil density about 1.0197g/cm3；Oil viscosity about 24760mPas (50 DEG C)；60 DEG C of reservoir temperature；Viscosity reduction situation
It is shown in Table 3.
The viscosity reduction situation of 3 practical application of the present invention of table
Self-emulsifying heavy crude thinner of the present invention is injected into well and boiled in a covered pot over a slow fire well, viscosity 241.8mPas is sampled after driving a well；This hair
Such as table 4 compared with preceding same time oil production before processing after the reason of daylight：
The condition of production compares before and after table 4. adds self-emulsifying heavy crude thinner
As a result it shows：After addition self-emulsifying heavy crude thinner of the present invention, with the reduction of viscosity of thickened oil, oil well is extended
Production cycle increases oil more than 180 days from testing ground situation analysis, adds up to increase 750 tons of oil or more.Therefore oil is substantially increased
Well yield reduces production cost, improves productivity effect.
Claims (9)
1. a kind of self-emulsifying heavy crude thinner, which is characterized in that be made by the component of following parts by weight：Modified nano-silica
Silicon, alkyl phenol ether sulfosuccinic acid ester sodium salt, acrylamide, peroxidized t-butyl perbenzoate and stabilizer weight ratio be 92~
96:3~4:1~3:0.5:0.02~1.
2. self-emulsifying heavy crude thinner as described in claim 1, it is characterised in that：The self-emulsifying heavy crude thinner component
For：Modified manometer silicon dioxide, alkyl phenol ether sulfosuccinic acid ester sodium salt, acrylamide, peroxidized t-butyl perbenzoate and steady
The weight ratio for determining agent is 94:4:2:0.5:0.05.
3. the self-emulsifying heavy crude thinner as described in claim 1 to 2 is any, it is characterised in that：The stabilizer be welan gum,
One or more of hydrolyzed polyacrylamide, xanthans and sodium carboxymethylcellulose.
4. a kind of preparation method of self-emulsifying heavy crude thinner, it is characterised in that：Include the following steps：
A. the modification of silica：The propyl alcohol that parts by weight are 3~5 parts is added in a reservoir, is 4.5 with formic acid tune pH, then adds
The water for entering 0.5~1.5 parts by weight is uniformly mixed, and the diethylenetriamine base propyl front three of 1.5~2.5 parts by weight is added while stirring
The hexamethyldisilazane of oxysilane and 0.5~1.5 parts by weight, makes it be fully hydrolyzed, and obtains modifying agent；By 80~90 weight
The silica of part is added in the deionized water of 1000 parts by weight, and the modifying agent of 10~20 parts by weight is then added, heats up back
Stream reaction 3~6 hours, puts 100 DEG C of drying by reaction product, obtains improved silica；
B. the synthesis of self-emulsifying heavy crude thinner：The improved silica of 92~96 parts by weight is added to the nothing of 500 parts by weight
In water-ethanol, the acrylamide of the alkyl phenol ether sulfosuccinic acid ester sodium salt and 1~3 parts by weight of 3~5 parts by weight is then added,
Stirring and dissolving is warming up to 70 DEG C, displaces the air in reaction system with nitrogen, and the benzoyl peroxide first of 0.5 parts by weight is added
Tert-butyl acrylate reacts 3~4 hours, the stabilizer of 0.02~1 parts by weight is then added, reaction product is centrifuged, is washed,
It is drying to obtain self-emulsifying heavy crude thinner.
5. the preparation method of self-emulsifying heavy crude thinner as claimed in claim 4, it is characterised in that：Third in the step a
Alcohol parts by weight are 4 parts, and the parts by weight of water are 1 part.
6. the preparation method of self-emulsifying heavy crude thinner as claimed in claim 4, it is characterised in that：Two in the step a
The parts by weight of three aminocarbonyl propyl trimethoxy silane of ethylene are 2 parts, and the parts by weight of hexamethyldisilazane are 1 part.
7. the preparation method of self-emulsifying heavy crude thinner as claimed in claim 4, it is characterised in that：Dioxy in the step a
The parts by weight of SiClx are 85 parts, and the parts by weight of modifying agent are 15 parts.
8. the preparation method of self-emulsifying heavy crude thinner as claimed in claim 4, it is characterised in that：The stabilizer is two kinds
Or it is mixed with arbitrary weight ratio when the mixing of two or more components.
9. the application of self-emulsifying heavy crude thinner, it is characterised in that：The self-emulsifying heavy crude thinner is applied to 40~110 DEG C
In viscous crude or special thick oil, additive amount is 100~50000ppm.
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| CN109837078A (en) * | 2019-03-13 | 2019-06-04 | 长沙而道新能源科技有限公司 | A kind of heavy crude thinner and preparation method thereof and viscosity reduction method |
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