CN117757459B - Slick water fracturing fluid and preparation method and application thereof - Google Patents
Slick water fracturing fluid and preparation method and application thereof Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000012530 fluid Substances 0.000 title claims abstract description 42
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 37
- 239000002105 nanoparticle Substances 0.000 claims abstract description 29
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 239000004094 surface-active agent Substances 0.000 claims abstract description 7
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 31
- 239000000178 monomer Substances 0.000 claims description 27
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 21
- 239000003607 modifier Substances 0.000 claims description 20
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 11
- OSSNTDFYBPYIEC-UHFFFAOYSA-N 1-ethenylimidazole Chemical compound C=CN1C=CN=C1 OSSNTDFYBPYIEC-UHFFFAOYSA-N 0.000 claims description 10
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 125000000217 alkyl group Chemical group 0.000 claims description 8
- WAVDSLLYAQBITE-UHFFFAOYSA-N (4-ethenylphenyl)methanamine Chemical compound NCC1=CC=C(C=C)C=C1 WAVDSLLYAQBITE-UHFFFAOYSA-N 0.000 claims description 7
- FSSPGSAQUIYDCN-UHFFFAOYSA-N 1,3-Propane sultone Chemical compound O=S1(=O)CCCO1 FSSPGSAQUIYDCN-UHFFFAOYSA-N 0.000 claims description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 7
- 229920000570 polyether Polymers 0.000 claims description 7
- ULRCHFVDUCOKTE-UHFFFAOYSA-N 3-[3-aminopropyl(diethoxy)silyl]oxybutan-1-amine Chemical compound NCCC[Si](OCC)(OCC)OC(C)CCN ULRCHFVDUCOKTE-UHFFFAOYSA-N 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 6
- 150000001350 alkyl halides Chemical class 0.000 claims description 6
- -1 alkyl orthosilicate Chemical compound 0.000 claims description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 6
- 239000007822 coupling agent Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 claims description 4
- 125000003277 amino group Chemical group 0.000 claims description 4
- 239000005543 nano-size silicon particle Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 229960004025 sodium salicylate Drugs 0.000 claims description 4
- WSULSMOGMLRGKU-UHFFFAOYSA-N 1-bromooctadecane Chemical compound CCCCCCCCCCCCCCCCCCBr WSULSMOGMLRGKU-UHFFFAOYSA-N 0.000 claims description 3
- YAYNEUUHHLGGAH-UHFFFAOYSA-N 1-chlorododecane Chemical compound CCCCCCCCCCCCCl YAYNEUUHHLGGAH-UHFFFAOYSA-N 0.000 claims description 3
- CLWAXFZCVYJLLM-UHFFFAOYSA-N 1-chlorohexadecane Chemical compound CCCCCCCCCCCCCCCCCl CLWAXFZCVYJLLM-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 2
- PBLNBZIONSLZBU-UHFFFAOYSA-N 1-bromododecane Chemical compound CCCCCCCCCCCCBr PBLNBZIONSLZBU-UHFFFAOYSA-N 0.000 claims description 2
- HNTGIJLWHDPAFN-UHFFFAOYSA-N 1-bromohexadecane Chemical compound CCCCCCCCCCCCCCCCBr HNTGIJLWHDPAFN-UHFFFAOYSA-N 0.000 claims description 2
- KOFZTCSTGIWCQG-UHFFFAOYSA-N 1-bromotetradecane Chemical compound CCCCCCCCCCCCCCBr KOFZTCSTGIWCQG-UHFFFAOYSA-N 0.000 claims description 2
- VUQPJRPDRDVQMN-UHFFFAOYSA-N 1-chlorooctadecane Chemical compound CCCCCCCCCCCCCCCCCCCl VUQPJRPDRDVQMN-UHFFFAOYSA-N 0.000 claims description 2
- RNHWYOLIEJIAMV-UHFFFAOYSA-N 1-chlorotetradecane Chemical compound CCCCCCCCCCCCCCCl RNHWYOLIEJIAMV-UHFFFAOYSA-N 0.000 claims description 2
- MZWXWSVCNSPBLH-UHFFFAOYSA-N 3-(3-aminopropyl-methoxy-methylsilyl)oxypropan-1-amine Chemical compound NCCC[Si](C)(OC)OCCCN MZWXWSVCNSPBLH-UHFFFAOYSA-N 0.000 claims description 2
- ZDZYGYFHTPFREM-UHFFFAOYSA-N 3-[3-aminopropyl(dimethoxy)silyl]oxypropan-1-amine Chemical compound NCCC[Si](OC)(OC)OCCCN ZDZYGYFHTPFREM-UHFFFAOYSA-N 0.000 claims description 2
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 2
- DLNWMWYCSOQYSQ-UHFFFAOYSA-M benzyl-hexadecyl-dimethylazanium;bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 DLNWMWYCSOQYSQ-UHFFFAOYSA-M 0.000 claims description 2
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 claims description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- NHBRUUFBSBSTHM-UHFFFAOYSA-N n'-[2-(3-trimethoxysilylpropylamino)ethyl]ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCNCCN NHBRUUFBSBSTHM-UHFFFAOYSA-N 0.000 claims description 2
- YLBPOJLDZXHVRR-UHFFFAOYSA-N n'-[3-[diethoxy(methyl)silyl]propyl]ethane-1,2-diamine Chemical compound CCO[Si](C)(OCC)CCCNCCN YLBPOJLDZXHVRR-UHFFFAOYSA-N 0.000 claims description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- 239000004599 antimicrobial Substances 0.000 claims 1
- TZLNJNUWVOGZJU-UHFFFAOYSA-M sodium;3-chloro-2-hydroxypropane-1-sulfonate Chemical compound [Na+].ClCC(O)CS([O-])(=O)=O TZLNJNUWVOGZJU-UHFFFAOYSA-M 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 12
- 238000010008 shearing Methods 0.000 abstract description 11
- 230000009467 reduction Effects 0.000 abstract description 9
- 239000002131 composite material Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 230000001603 reducing effect Effects 0.000 description 4
- KTOIESNTVCLSFG-UHFFFAOYSA-N 1-chloropropan-2-ol;sodium Chemical compound [Na].CC(O)CCl KTOIESNTVCLSFG-UHFFFAOYSA-N 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- SXPWTBGAZSPLHA-UHFFFAOYSA-M cetalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SXPWTBGAZSPLHA-UHFFFAOYSA-M 0.000 description 2
- 229960000228 cetalkonium chloride Drugs 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000259 polyoxyethylene lauryl ether Polymers 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical group 0.000 description 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 2
- 229920001059 synthetic polymer Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000015784 hyperosmotic salinity response Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides a slick water fracturing fluid, a preparation method and application thereof, and belongs to the technical field of fracturing fluids. The composite material is prepared from the following raw materials in parts by weight: 3-5 parts of drag reducer, 0.01-0.1 part of antibacterial agent, 0.05-0.5 part of cleanup additive and 97-99 parts of water; the drag reducer is prepared from a surfactant, a polymer and modified nano particles. The slickwater fracturing fluid prepared by the invention has the advantages of simple preparation method, wide raw material sources, low use cost, capability of being recycled and wide application prospect, and simultaneously has the performances of drag reduction, temperature resistance, salt resistance and shearing resistance.
Description
Technical Field
The invention relates to the technical field of fracturing fluids, in particular to a slickwater fracturing fluid, a preparation method and application thereof.
Background
The slickwater fracturing fluid is a key working fluid for large-scale fracturing construction such as horizontal well group fracturing, is large in fracturing construction scale, large in liquid amount and high in discharge rate, and is required to be used, has low pumping friction resistance, low in use cost and capable of being recycled. 98.0-99.5% of slick water fracturing fluid is sand-mixed water, and resistance reducing agent (drag reducer) is core additive of the system, wherein the polyacrylamide type resistance reducing agent in the synthetic polymer becomes main flow resistance reducing agent for domestic and foreign slick water with low product price and good resistance reducing effect, but the resistance reducing performance in slick water is seriously affected by poor hardness resistance performance of the slick water prepared by the flowback fluid; although the biological polysaccharide resistance reducing agent has wide sources, the resistance reducing effect is general, the content of water insoluble matters is high, and the damage to a reservoir is easy to cause; compared with the synthetic polymer type resistance reducing agent, the surfactant type resistance reducing agent has obviously enhanced shearing resistance, but has the problems of high cost and the like.
In recent years, with the exploration and development of unconventional oil and gas field resources, the requirements on the fracturing yield increase technology are higher and higher, so that the research on slickwater fracturing fluid at home and abroad is forced to be mature, and the variety of slickwater fracturing fluid is increased continuously. At present, the slick water fracturing fluid is limited by factors such as drag reduction effect, temperature resistance, salt resistance, shearing resistance and the like, and the slick water fracturing fluid which can achieve drag reduction, temperature resistance, salt resistance and shearing resistance is not mature in the prior art.
Disclosure of Invention
The invention aims to provide a slickwater fracturing fluid, a preparation method and application thereof, which are simple in preparation method, wide in raw material source, low in use cost, capable of being recycled and wide in application prospect, and simultaneously has the performances of drag reduction, temperature resistance, salt resistance and shearing resistance.
The technical scheme of the invention is realized as follows:
the invention provides a slick water fracturing fluid which is prepared from the following raw materials in parts by weight: 3-5 parts of drag reducer, 0.01-0.1 part of antibacterial agent, 0.05-0.5 part of cleanup additive and 97-99 parts of water;
the drag reducer is prepared from a surfactant, a polymer and modified nano particles;
The structural formula of the polymer is shown as formula I:
a formula I;
Wherein a=20-30; b=15-30; c=40-50; d=10-15; r=c12-18 long chain alkyl chain;
the modified nano particles are nano silicon dioxide particles with the surfaces modified by amino groups and double bonds.
As a further improvement of the present invention, the surfactant is at least one selected from cetyltrimethylammonium bromide, cetyltrimethylsodium bromide, cetyltrimethylammonium chloride, cetyltrimethylsodium chloride, cetyldimethylbenzyl ammonium chloride, and cetyldimethylbenzyl ammonium bromide; the polymer is prepared from monomer A, acrylic acid, acrylamide and 1-vinylimidazole according to the weight ratio of 116-201:10-22:28-36:9-15, wherein the structural formula of the monomer A is shown in formula II:
A formula II;
Wherein r=c12-18 long chain alkyl chain.
As a further improvement of the present invention, the preparation method of the monomer a is as follows:
s1, reacting 4-vinylbenzylamine with 3-chlorine-2-hydroxy propane sodium sulfonate to prepare an intermediate 1, wherein the structure is as follows: ；
S2, reacting the intermediate 1 with haloalkane to obtain an intermediate 2, wherein the structure is as follows: R=c12-18 long chain alkyl chains;
s3, reacting the intermediate 2 with propane sultone to obtain a product.
As a further improvement of the invention, the molar ratio of the 4-vinylbenzylamine to the 3-chlorine-2-hydroxy propane sodium sulfonate in the step S1 is 1-1.1:1, the reaction temperature is 50-60 ℃ and the time is 3-4h; in the step S2, the molar ratio of the intermediate 1 to the alkyl halide is 1:1-1.1, the reaction temperature is 55-65 ℃ and the reaction time is 1-3h, wherein the alkyl halide is at least one selected from 1-chlorododecane, 1-chlorotetradecane, 1-chlorohexadecane, 1-chlorooctadecane, 1-bromododecane, 1-bromotetradecane, 1-bromohexadecane and 1-bromooctadecane; the molar ratio of the intermediate 2 to the propane sultone in the step S3 is 1:1.2-1.3, the reaction temperature is 40-50 ℃ and the reaction time is 18-20h.
As a further improvement of the present invention, the preparation method of the modified nanoparticle is as follows:
t1 preparation of nano SiO 2 particles: mixing and stirring ethanol, ammonia water and water, adding alkyl orthosilicate, heating for hydrolysis reaction, centrifuging, washing, and drying to obtain nano SiO 2 particles;
T2. preparation of modifier: uniformly mixing an aminosilane coupling agent and a silane coupling agent with double bonds to prepare a modifier;
T3. preparation of modified nanoparticles: adding the nano SiO 2 particles prepared in the step T1 into ethanol solution, adding the modifier prepared in the step T2, heating, stirring, reacting, centrifuging, washing and drying to obtain the modified nano particles.
As a further improvement of the invention, the mass ratio of the ethanol, the ammonia water, the water and the alkyl orthosilicate in the step T1 is 165-175:3-4:15-20:10-11, and the heating temperature is 30-40 ℃; the aminosilane coupling agent in the step T2 is at least one selected from gamma-aminopropyl trimethoxysilane, gamma-aminopropyl triethoxysilane, N-beta (aminoethyl) -gamma-aminopropyl trimethoxysilane, N-beta (aminoethyl) -gamma-aminopropyl triethoxysilane, N-beta (aminoethyl) -gamma-aminopropyl methyldimethoxy silane, N-beta (aminoethyl) -gamma-aminopropyl methyldiethoxy silane and diethylenetriaminopropyl trimethoxysilane, the silane coupling agent with double bond is at least one selected from KH570, A-172 and A-171, and the mass ratio of the aminosilane coupling agent to the silane coupling agent with double bond is 5-7:3-5; in the step T3, the mass ratio of the nano SiO 2 particles to the modifier is 100:7-10, the temperature of the heating and stirring reaction is 40-50 ℃, and the time is 2-4h.
As a further improvement of the present invention, the drag reducer is prepared as follows:
(1) Adding the monomer A, acrylic acid, acrylamide and 1-vinylimidazole into water to prepare an aqueous solution with the total mass concentration of the monomer of 30-32 wt%;
(2) Under the protection of inert gas, adding potassium persulfate and water to prepare an aqueous solution with the total mass concentration of monomers of 25-27wt%, adding modified nano particles, stirring and reacting for 2-4h at 40-50 ℃, filtering, washing, drying and crushing the product to prepare a polymer;
(3) Adding the polymer into white oil, adding the surfactant and water, emulsifying, and obtaining the drag reducer.
As a further improvement of the present invention, the antibacterial agent is at least one selected from sodium salicylate, and phosphorus tetramethylolsulfate; the cleanup additive is at least one selected from the group consisting of dodecyl polyoxyethylene ether, polyether F68, polyether P104 and polyether L64.
The invention further provides a preparation method of the slickwater fracturing fluid, which comprises the steps of mixing a drag reducer, an antibacterial agent and a cleanup additive into water, heating to 35-45 ℃, and stirring for reacting for 10-20min to obtain the slickwater fracturing fluid.
The invention further protects application of the slickwater fracturing fluid in horizontal well group fracturing.
The invention has the following beneficial effects:
The monomer A is provided with a rigid ring structure, a polysulfonate group and a quaternary ammonium salt structure, wherein the sulfonate group has good thermal stability and is insensitive to high temperature, meanwhile, the rigidity and the salt resistance of a polymer molecular chain can be improved, and a hydrophobic alkyl long chain is connected, the heat resistance stability and the shearing resistance of the polymer can be improved due to the rigid structure, and the acid solubility and the temperature resistance of the polymer are improved due to the quaternary ammonium salt structure; the hydrophobic long-chain alkyl chain can also enhance the salt tackifying effect of the polymer, improve the temperature resistance and salt resistance of polymer molecules, introduce benzene ring structures, increase the steric hindrance of molecular chain segment movement, locally change the molecular chain into rigidity, and improve the thermal stability of the polymer molecular chain. The introduction of the 1-vinyl imidazole can also synergistically improve the shearing resistance and the heat resistance of the polymer, and the shearing resistance, the salt resistance and the temperature resistance of the drag reducer are greatly improved by introducing the polymer monomer and the 1-vinyl imidazole. In addition, modified nano particles are added in the drag reducer, and common nano silicon dioxide particles are easy to agglomerate, so that amino groups and double bonds are modified on the surfaces of the nano silicon dioxide particles, the double bonds can be polymerized together, and the amino groups form hydrogen bonds and the like, so that the nano particles are well dispersed in a polymer, and a good modification effect is exerted. The modified nano particles further improve the performances of temperature resistance, shearing resistance, salt resistance and the like of the drag reducer by forming covalent bonds, ionic bonds and the like.
The slickwater fracturing fluid prepared by the invention has the advantages of simple preparation method, wide raw material sources, low use cost, capability of being recycled and wide application prospect, and simultaneously has the performances of drag reduction, temperature resistance, salt resistance and shearing resistance.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Preparation example 1 preparation of monomer A
The synthetic route is as follows:
。
The method comprises the following steps:
S1, dissolving 0.1mol of 4-vinylbenzylamine and 0.1mol of 3-chloro-2-hydroxy propane sodium sulfonate in 200mL of ethylene glycol, heating to 50 ℃, adjusting the pH of the mixed solution to 8 by using an aqueous solution of NaOH, stirring and reacting for 3 hours, filtering, washing and drying to prepare an intermediate 1; ESI-MS calculated: c 12H17NNaO4S(M+H)+ 294.07, found: 294.1.
Nuclear magnetic results ：1H NMR(300MHz,CDCl3)δ7.14（d,J=6.5Hz,2H）,6.5-6.64（m,3H）,5.65（d,1H）,5.13（m,1H）,3.41-3.65（m,5H）,2.82（s,3H）,2.0（br,1H）.
S2, adding 0.1mol of intermediate 1, 0.1mol of 1-chlorododecane and 0.5mol of KOH into 200mL of acetonitrile, heating to 55 ℃, stirring and reacting for 1h, removing the solvent under reduced pressure, washing, filtering and drying to obtain an intermediate 2; ESI-MS calculated: c 24H41NNaO4S(M+H)+ 462.26, found: 462.3.
Nuclear magnetic results ：1H NMR(300MHz,CDCl3)δ7.15（d,J=6.2Hz,2H）,6.51-6.65（m,3H）,5.63（d,1H）,5.15（m,1H）,3.42-3.65（m,5H）,3.37（t,2H）,2.85（s,3H）,1.29-1.45（m,20H）,0.97（t,3H）.
S3, dissolving 0.1mol of intermediate 2 and 0.12mol of propane sultone in 200mL of acetone, heating to 40 ℃, stirring, reacting for 18h, filtering, washing and drying to obtain the product, wherein the total yield is 57.9%. ESI-MS calculated: c 27H47NNaO7S2(M+H)+ 584.26, found: 584.3.
Nuclear magnetic results ：1H NMR(300MHz,CDCl3)δ7.92（d,J=6.7Hz,2H）,7.65（d,J=6.6Hz,2H）,6.67（m,1H）,5.63（m,1H）,5.12（m,1H）,3.71（s,3H）,3.2-3.68（m,9H）,1.82（t,2H）,1.27-1.43（m,22H）,0.94（t,3H）.
Preparation example 2 preparation of monomer A
The method comprises the following steps:
S1, dissolving 0.11mol of 4-vinylbenzylamine and 0.1mol of 3-chloro-2-hydroxy propane sodium sulfonate in 200mL of ethylene glycol, heating to 60 ℃, adjusting the pH of the mixed solution to 8 by using an aqueous solution of NaOH, stirring and reacting for 4 hours, filtering, washing and drying to prepare an intermediate 1;
S2, adding 0.1mol of the intermediate 1, 0.11mol of 1-bromooctadecane and 0.5mol of KOH into 200mL of acetonitrile, heating to 65 ℃, stirring for reaction for 3 hours, removing the solvent under reduced pressure, washing, filtering and drying to obtain an intermediate 2;
S3, dissolving 0.1mol of intermediate 2 and 0.13mol of propane sultone in 200mL of acetone, heating to 50 ℃, stirring, reacting for 20h, filtering, washing and drying to obtain the product with the total yield of 55.4%.
Preparation example 3 preparation of monomer A
The method comprises the following steps:
S1, dissolving 0.105mol of 4-vinylbenzylamine and 0.1mol of 3-chloro-2-hydroxy propane sodium sulfonate in 200mL of ethylene glycol, heating to 55 ℃, regulating the pH of the mixed solution to 8 by using an aqueous solution of NaOH, stirring and reacting for 3.5h, filtering, washing and drying to obtain an intermediate 1;
S2, adding 0.1mol of the intermediate 1, 0.105mol of 1-chlorohexadecane and 0.5mol of KOH into 200mL of acetonitrile, heating to 60 ℃, stirring and reacting for 2 hours, removing the solvent under reduced pressure, washing, filtering and drying to obtain an intermediate 2;
s3, dissolving 0.1mol of intermediate 2 and 0.125mol of propane sultone in 200mL of acetone, heating to 45 ℃, stirring, reacting for 19h, filtering, washing and drying to obtain the product with the total yield of 56.5%.
Preparation example 4 preparation of modified nanoparticles
The method comprises the following steps:
t1 preparation of nano SiO 2 particles: 165 parts by weight of ethanol, 3 parts by weight of ammonia water and 15 parts by weight of water are mixed and stirred, 10 parts by weight of tetraethoxysilane is added, the mixture is heated to 30 ℃ for hydrolysis reaction for 10 hours, and the mixture is centrifuged, washed and dried to prepare nano SiO 2 particles;
T2. preparation of modifier: mixing N-beta (aminoethyl) -gamma-aminopropyl triethoxysilane and a silane coupling agent KH570 according to a mass ratio of 5:3, and stirring for 20min to obtain a modifier;
T3. preparation of modified nanoparticles: adding 100 parts by weight of nano SiO 2 particles prepared in the step T1 into 200 parts by weight of ethanol solution, adding 7 parts by weight of the modifier prepared in the step T2, heating to 40 ℃, stirring and reacting for 2 hours, centrifuging, washing and drying to prepare modified nano particles.
Preparation example 5 preparation of modified nanoparticles
The method comprises the following steps:
T1 preparation of nano SiO 2 particles: mixing 175 parts by weight of ethanol, 4 parts by weight of ammonia water and 20 parts by weight of water, stirring, adding 11 parts by weight of tetraethoxysilane, heating to 40 ℃, carrying out hydrolysis reaction for 12 hours, centrifuging, washing and drying to obtain nano SiO 2 particles;
T2. preparation of modifier: mixing N-beta (aminoethyl) -gamma-aminopropyl triethoxysilane and a silane coupling agent KH570 according to a mass ratio of 7:5, and stirring for 20min to obtain a modifier;
T3. preparation of modified nanoparticles: adding 100 parts by weight of nano SiO 2 particles prepared in the step T1 into 200 parts by weight of ethanol solution, adding 10 parts by weight of the modifier prepared in the step T2, heating to 50 ℃, stirring and reacting for 4 hours, centrifuging, washing and drying to prepare modified nano particles.
Preparation example 6 preparation of modified nanoparticles
The method comprises the following steps:
T1 preparation of nano SiO 2 particles: 170 parts by weight of ethanol, 3.5 parts by weight of ammonia water and 17 parts by weight of water are mixed and stirred, 10.5 parts by weight of tetraethoxysilane is added, the mixture is heated to 35 ℃ for hydrolysis reaction for 11 hours, and the mixture is centrifuged, washed and dried to prepare nano SiO 2 particles;
T2. preparation of modifier: mixing N-beta (aminoethyl) -gamma-aminopropyl triethoxysilane and a silane coupling agent KH570 according to a mass ratio of 6:4, and stirring for 20min to obtain a modifier;
T3. preparation of modified nanoparticles: adding 100 parts by weight of nano SiO 2 particles prepared in the step T1 into 200 parts by weight of ethanol solution, adding 8.5 parts by weight of the modifier prepared in the step T2, heating to 45 ℃, stirring and reacting for 3 hours, centrifuging, washing and drying to prepare modified nano particles.
Comparative preparation example 1
The difference compared to preparation 6 is that the modifier is a single N-beta (aminoethyl) -gamma-aminopropyl triethoxysilane.
Comparative preparation example 2
The difference compared with preparation example 6 is that the modifier is a single silane coupling agent KH570.
Comparative preparation example 3
The difference compared to preparation 6 is that no modifier is added.
PREPARATION EXAMPLE 7 preparation of drag reducing agent
The method comprises the following steps:
(1) 116 parts by weight of the monomer A prepared in preparation example 1, 10 parts by weight of acrylic acid, 28 parts by weight of acrylamide and 9 parts by weight of 1-vinylimidazole are added into water to prepare an aqueous solution with the total mass concentration of the monomer of 30 wt%;
(2) Under the protection of nitrogen, adding potassium persulfate and water accounting for 0.5 percent of the weight of the whole system to prepare an aqueous solution with the total mass concentration of monomers of 25 percent, adding 2 parts by weight of modified nano particles prepared in preparation example 4, stirring and reacting for 2 hours at 40 ℃, filtering, washing, drying and crushing the product to prepare a polymer;
(3) 10 parts by weight of a polymer was added to 200 parts by weight of white oil, 3 parts by weight of cetyltrimethylammonium bromide and 200 parts by weight of water were added, and 10000r/min was emulsified for 15 minutes to prepare a drag reducer.
PREPARATION EXAMPLE 8 preparation of drag reducing agent
The method comprises the following steps:
(1) Adding 201 parts by weight of monomer A prepared in preparation example 2, 22 parts by weight of acrylic acid, 36 parts by weight of acrylamide and 15 parts by weight of 1-vinylimidazole into water to prepare an aqueous solution with the total mass concentration of the monomers of 32 wt%;
(2) Under the protection of nitrogen, adding potassium persulfate and water accounting for 0.5 percent of the weight of the whole system to prepare an aqueous solution with the total mass concentration of the monomers of 27 percent, adding 4 parts by weight of modified nano particles prepared in preparation example 5, stirring and reacting for 4 hours at 50 ℃, filtering, washing, drying and crushing the product to prepare a polymer;
(3) 15 parts by weight of a polymer was added to 200 parts by weight of white oil, 5 parts by weight of cetyltrimethyl sodium bromide and 200 parts by weight of water were added, and 10000r/min was emulsified for 15 minutes to prepare a drag reducer.
PREPARATION EXAMPLE 9 preparation of drag reducing agent
The method comprises the following steps:
(1) 175 parts by weight of monomer A prepared in preparation example 3, 17 parts by weight of acrylic acid, 32 parts by weight of acrylamide and 11 parts by weight of 1-vinylimidazole are added into water to prepare an aqueous solution with the total mass concentration of the monomers of 31 wt%;
(2) Under the protection of nitrogen, adding potassium persulfate and water accounting for 0.5 percent of the weight of the whole system to prepare an aqueous solution with the total mass concentration of the monomers of 26 percent, adding 3 parts by weight of modified nano particles prepared in preparation example 6, stirring at 45 ℃ for reaction for 3 hours, filtering, washing, drying and crushing the product to prepare the polymer;
(3) 12 parts by weight of a polymer was added to 200 parts by weight of white oil, and 4 parts by weight of cetyl dimethylbenzyl ammonium chloride and 200 parts by weight of water were added and emulsified for 15 minutes at 10000r/min to prepare a drag reducer.
Comparative preparation examples 4 to 6
The difference compared to preparation 9 is that modified nanoparticles were prepared from comparative preparations 1 to 3, respectively.
Comparative preparation example 7
The difference compared to preparation 9 is that no monomer A is added.
Comparative preparation example 8
In comparison with preparation 9, 1-vinylimidazole was not added.
Test example 1
Drag reducers prepared in inventive preparations 7-9 and comparative preparations 4-8 were tested for drag reduction rate as specified in NB/T14003.1-2015 for 7.8. Drag reduction rates in 0.05% and 0.1% NaCl solutions, respectively, were tested for drag reduction when the drag reducer reached the maximum drag reduction rate.
The results are shown in Table 1.
TABLE 1
。
As is clear from the above table, the drag reducing agents prepared in preparation examples 7 to 9 of the present invention have excellent drag reducing effect.
Test example 2 salt and shear resistance and temperature resistance test
The drag reducers prepared in inventive preparation examples 7-9 and comparative preparation examples 4-8 were formulated into an aqueous solution having a content of 0.1wt% for performance testing.
Salt tolerance test
NaCl was added to the solution so that the concentration of NaCl in the solution was 0.5% by weight, and the apparent viscosity was measured by a viscometer at room temperature (25 ℃) and at a shear rate of 170s -1, and the viscosity retention (%) was calculated.
Shear resistance test
The apparent viscosity was measured by a rheometer at 25℃and 170 s -1 for 2 hours with continuous shearing of the solution, and the viscosity retention (%) was calculated by measuring the apparent viscosity by a viscometer.
Temperature resistance test
The apparent viscosity of the solution was measured by a viscometer at 110℃and 170s -1 shear rate, and the viscosity retention (%) was calculated.
Viscosity retention (%) = (apparent viscosity η 1 at measurement time—apparent viscosity in initial state η 0)/apparent viscosity in initial state η 0 ×100%
The results are shown in Table 2.
TABLE 2
。
As can be seen from the above table, the drag reducer prepared in preparation examples 7-9 of the present invention has good temperature resistance, salt resistance and shear resistance.
Example 1
The embodiment provides a preparation method of a slickwater fracturing fluid, which is to mix and add 3 parts by weight of drag reducer of preparation example 7, 0.01 part by weight of phosphorus tetramethylol sulfate and 0.05 part by weight of polyether F68 into 97 parts by weight of water, heat the mixture to 35 ℃, and stir the mixture for 10 minutes to prepare the slickwater fracturing fluid.
Example 2
The embodiment provides a preparation method of a slickwater fracturing fluid, which comprises the steps of mixing 5 parts by weight of drag reducer of preparation example 8, 0.1 part by weight of sodium salicylate and 0.5 part by weight of polyoxyethylene lauryl ether, adding the mixture into 99 parts by weight of water, heating the mixture to 45 ℃, and stirring the mixture for 20 minutes to obtain the slickwater fracturing fluid.
Example 3
The embodiment provides a preparation method of a slickwater fracturing fluid, which comprises the steps of mixing and adding 4 parts by weight of drag reducer of preparation example 9, 0.05 part by weight of sodium salicylate and 0.3 part by weight of polyoxyethylene lauryl ether into 98 parts by weight of water, heating to 40 ℃, and stirring and reacting for 15min to obtain the slickwater fracturing fluid.
Comparative examples 1 to 5
The difference compared to example 3 is that drag reducers were prepared from comparative preparation examples 4-8, respectively.
Test example 3
The slickwater fracturing fluids prepared in examples 1-3 and comparative examples 4-9 of the present invention were subjected to performance testing.
1. Interfacial tension test of slickwater fracturing fluid and aviation kerosene: the interfacial tension of the slickwater fracturing fluid is tested according to SY/T5370 surface and interfacial tension determination method.
2. Suspended sand performance measurement
Pouring self-crosslinking slick water fracturing fluid into a measuring cylinder, measuring the height h of the liquid level by a ruler, lightly putting quartz sand into the surface of the liquid, pressing a stopwatch, and recording the time t when the quartz sand reaches the ceramsite at the bottom of the measuring cylinder first. The sand ratio was 20%.
The calculation method of the sand setting speed comprises the following steps: sand setting velocity v=liquid level height/settling time=h/t.
The results are shown in Table 3.
TABLE 3 Table 3
。
As shown in the table above, the slickwater fracturing fluids prepared in examples 1-3 of the present invention have suitable interfacial tension and good sand carrying performance.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. The slick water fracturing fluid is characterized by being prepared from the following raw materials in parts by weight: 3-5 parts of drag reducer, 0.01-0.1 part of antibacterial agent, 0.05-0.5 part of cleanup additive and 97-99 parts of water;
the drag reducer is prepared from a surfactant, a polymer and modified nano particles;
The preparation method of the drag reducer comprises the following steps:
Adding 116-201 parts by weight of monomer A, 10-22 parts by weight of acrylic acid, 28-36 parts by weight of acrylamide and 9-15 parts by weight of 1-vinylimidazole into water to prepare an aqueous solution with the total mass concentration of the monomers of 30-32 wt%;
Under the protection of inert gas, adding potassium persulfate and water accounting for 0.5 percent of the weight of the whole system to prepare an aqueous solution with the total mass concentration of 25-27 percent of monomers, adding 2-4 parts by weight of modified nano particles, stirring and reacting for 2-4 hours at 40-50 ℃, filtering, washing, drying and crushing the product to prepare the polymer;
(3) Adding 10-15 parts by weight of polymer into 200 parts by weight of white oil, adding 3-5 parts by weight of cetyltrimethylammonium bromide and 200 parts by weight of water, and emulsifying to prepare a drag reducer;
The structural formula of the polymer is shown as formula I:
a formula I;
Wherein a=20-30; b=15-30; c=40-50; d=10-15; r=c12-18 long chain alkyl chain;
The structural formula of the monomer A is shown as formula II:
A formula II;
Wherein r=c12-18 long chain alkyl chains;
the modified nano particles are nano silicon dioxide particles with the surfaces modified by amino groups and double bonds.
2. The slickwater fracturing fluid of claim 1, wherein said surfactant is selected from at least one of cetyltrimethylammonium bromide, cetyltrimethylsodium bromide, cetyltrimethylammonium chloride, cetyltrimethylsodium chloride, cetyldimethylbenzyl ammonium bromide; the polymer is prepared from monomer A, acrylic acid, acrylamide and 1-vinylimidazole according to the weight ratio of 116-201:10-22:28-36:9-15.
3. The slick water fracturing fluid of claim 2, wherein said monomer a is prepared by the process comprising:
s1, reacting 4-vinylbenzylamine with 3-chlorine-2-hydroxy propane sodium sulfonate to prepare an intermediate 1, wherein the structure is as follows: ；
S2, reacting the intermediate 1 with haloalkane to obtain an intermediate 2, wherein the structure is as follows: R=c12-18 long chain alkyl chains;
s3, reacting the intermediate 2 with propane sultone to obtain a product.
4. The slickwater fracturing fluid of claim 3, wherein the molar ratio of 4-vinylbenzylamine to sodium 3-chloro-2-hydroxypropanesulfonate in step S1 is 1-1.1:1, the reaction temperature is 50-60 ℃, and the time is 3-4 hours; in the step S2, the molar ratio of the intermediate 1 to the alkyl halide is 1:1-1.1, the reaction temperature is 55-65 ℃ and the reaction time is 1-3h, wherein the alkyl halide is at least one selected from 1-chlorododecane, 1-chlorotetradecane, 1-chlorohexadecane, 1-chlorooctadecane, 1-bromododecane, 1-bromotetradecane, 1-bromohexadecane and 1-bromooctadecane; the molar ratio of the intermediate 2 to the propane sultone in the step S3 is 1:1.2-1.3, the reaction temperature is 40-50 ℃ and the reaction time is 18-20h.
5. The slick water fracturing fluid of claim 1, wherein the modified nanoparticles are prepared by the method comprising:
t1 preparation of nano SiO 2 particles: mixing and stirring ethanol, ammonia water and water, adding alkyl orthosilicate, heating for hydrolysis reaction, centrifuging, washing, and drying to obtain nano SiO 2 particles;
T2. preparation of modifier: uniformly mixing an aminosilane coupling agent and a silane coupling agent with double bonds to prepare a modifier;
T3. preparation of modified nanoparticles: adding the nano SiO 2 particles prepared in the step T1 into ethanol solution, adding the modifier prepared in the step T2, heating, stirring, reacting, centrifuging, washing and drying to obtain the modified nano particles.
6. The slickwater fracturing fluid of claim 5, wherein the mass ratio of ethanol, ammonia, water, alkyl orthosilicate in step T1 is 165-175:3-4:15-20:10-11, and the heating temperature is 30-40 ℃; the aminosilane coupling agent in the step T2 is at least one selected from gamma-aminopropyl trimethoxysilane, gamma-aminopropyl triethoxysilane, N-beta (aminoethyl) -gamma-aminopropyl trimethoxysilane, N-beta (aminoethyl) -gamma-aminopropyl triethoxysilane, N-beta (aminoethyl) -gamma-aminopropyl methyldimethoxy silane, N-beta (aminoethyl) -gamma-aminopropyl methyldiethoxy silane and diethylenetriaminopropyl trimethoxysilane, the silane coupling agent with double bond is at least one selected from KH570, A-172 and A-171, and the mass ratio of the aminosilane coupling agent to the silane coupling agent with double bond is 5-7:3-5; in the step T3, the mass ratio of the nano SiO 2 particles to the modifier is 100:7-10, the temperature of the heating and stirring reaction is 40-50 ℃, and the time is 2-4h.
7. The slick water fracturing fluid of claim 1, wherein said antimicrobial agent is selected from at least one of sodium salicylate, phosphorus tetramethylolsulfate; the cleanup additive is at least one selected from the group consisting of dodecyl polyoxyethylene ether, polyether F68, polyether P104 and polyether L64.
8. A method for preparing a slickwater fracturing fluid according to any one of claims 1 to 7, wherein drag reducer, antibacterial agent and cleanup additive are mixed and added into water, heated to 35 to 45 ℃, and stirred and reacted for 10 to 20 minutes to prepare the slickwater fracturing fluid.
9. Use of a slickwater fracturing fluid according to any of claims 1-7 in horizontal well group fracturing.
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| CN103881685A (en) * | 2014-03-25 | 2014-06-25 | 中国石油大学(华东) | Application of nano material self-priming in improving slick water fracturing liquid in shale oil and gas production increment through nano material self-priming |
| CN113201091A (en) * | 2021-04-25 | 2021-08-03 | 中国石油大学(华东) | Drag reducer, preparation method thereof, slickwater fracturing fluid and application |
| CN113717709A (en) * | 2021-08-27 | 2021-11-30 | 西安长庆化工集团有限公司 | Nano fluid imbibition agent and preparation method and application thereof |
| CN114106810A (en) * | 2021-11-05 | 2022-03-01 | 中国地质大学（北京） | Nano silicon dioxide, nano composite slickwater fracturing fluid, preparation method and application |
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| CN103881685A (en) * | 2014-03-25 | 2014-06-25 | 中国石油大学(华东) | Application of nano material self-priming in improving slick water fracturing liquid in shale oil and gas production increment through nano material self-priming |
| CN113201091A (en) * | 2021-04-25 | 2021-08-03 | 中国石油大学(华东) | Drag reducer, preparation method thereof, slickwater fracturing fluid and application |
| CN113717709A (en) * | 2021-08-27 | 2021-11-30 | 西安长庆化工集团有限公司 | Nano fluid imbibition agent and preparation method and application thereof |
| CN114106810A (en) * | 2021-11-05 | 2022-03-01 | 中国地质大学（北京） | Nano silicon dioxide, nano composite slickwater fracturing fluid, preparation method and application |
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