CN108587593A - Slickwater fracturing fluid for low-temperature reservoir - Google Patents
Slickwater fracturing fluid for low-temperature reservoir Download PDFInfo
- Publication number
- CN108587593A CN108587593A CN201711441220.8A CN201711441220A CN108587593A CN 108587593 A CN108587593 A CN 108587593A CN 201711441220 A CN201711441220 A CN 201711441220A CN 108587593 A CN108587593 A CN 108587593A
- Authority
- CN
- China
- Prior art keywords
- methacrylate
- acid
- fracturing fluid
- acrylate
- acrylmonomers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003381 stabilizer Substances 0.000 claims abstract description 37
- 239000002562 thickening agent Substances 0.000 claims abstract description 26
- 239000004927 clay Substances 0.000 claims abstract description 17
- -1 acryloyl Amine Chemical class 0.000 claims description 58
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 40
- 239000000203 mixture Substances 0.000 claims description 35
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 27
- 239000003431 cross linking reagent Substances 0.000 claims description 21
- 230000010148 water-pollination Effects 0.000 claims description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 20
- 235000019270 ammonium chloride Nutrition 0.000 claims description 20
- SWLVFNYSXGMGBS-UHFFFAOYSA-N ammonium bromide Chemical group [NH4+].[Br-] SWLVFNYSXGMGBS-UHFFFAOYSA-N 0.000 claims description 19
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 17
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 16
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 15
- 239000003999 initiator Substances 0.000 claims description 15
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 claims description 15
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 claims description 14
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 14
- 229920006322 acrylamide copolymer Polymers 0.000 claims description 14
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000003995 emulsifying agent Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 14
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 13
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 13
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 claims description 12
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 12
- 229920000642 polymer Polymers 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000013329 compounding Methods 0.000 claims description 10
- FSAJWMJJORKPKS-UHFFFAOYSA-N octadecyl prop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C=C FSAJWMJJORKPKS-UHFFFAOYSA-N 0.000 claims description 10
- CVEPFOUZABPRMK-UHFFFAOYSA-N 2-methylprop-2-enoic acid;styrene Chemical compound CC(=C)C(O)=O.C=CC1=CC=CC=C1 CVEPFOUZABPRMK-UHFFFAOYSA-N 0.000 claims description 9
- 239000002202 Polyethylene glycol Substances 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- 229920001223 polyethylene glycol Polymers 0.000 claims description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 8
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 claims description 8
- LNCPIMCVTKXXOY-UHFFFAOYSA-N hexyl 2-methylprop-2-enoate Chemical compound CCCCCCOC(=O)C(C)=C LNCPIMCVTKXXOY-UHFFFAOYSA-N 0.000 claims description 8
- LNMQRPPRQDGUDR-UHFFFAOYSA-N hexyl prop-2-enoate Chemical compound CCCCCCOC(=O)C=C LNMQRPPRQDGUDR-UHFFFAOYSA-N 0.000 claims description 8
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 8
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 8
- 235000019394 potassium persulphate Nutrition 0.000 claims description 8
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 7
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 7
- 239000000174 gluconic acid Substances 0.000 claims description 7
- 235000012208 gluconic acid Nutrition 0.000 claims description 7
- 238000000746 purification Methods 0.000 claims description 7
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 6
- ZUGAOYSWHHGDJY-UHFFFAOYSA-K 5-hydroxy-2,8,9-trioxa-1-aluminabicyclo[3.3.2]decane-3,7,10-trione Chemical compound [Al+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O ZUGAOYSWHHGDJY-UHFFFAOYSA-K 0.000 claims description 6
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 6
- 239000001273 butane Substances 0.000 claims description 6
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 6
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 6
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 6
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 6
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 6
- 150000003512 tertiary amines Chemical class 0.000 claims description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 5
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 5
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims description 5
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 5
- 229920001427 mPEG Polymers 0.000 claims description 5
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims description 5
- AZRPQPHRMNCMTN-UHFFFAOYSA-L potassium sodium dioxido-oxo-sulfanylidene-lambda6-sulfane sulfooxy hydrogen sulfate Chemical compound S(=S)(=O)([O-])[O-].[Na+].S(=O)(=O)(O)OOS(=O)(=O)O.[K+] AZRPQPHRMNCMTN-UHFFFAOYSA-L 0.000 claims description 5
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulphite Substances [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- LZBIYPIDWSGLOV-UHFFFAOYSA-N dimethyl(prop-2-enyl)azanium;chloride Chemical compound [Cl-].C[NH+](C)CC=C LZBIYPIDWSGLOV-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- YZQBYALVHAANGI-UHFFFAOYSA-N magnesium;dihypochlorite Chemical compound [Mg+2].Cl[O-].Cl[O-] YZQBYALVHAANGI-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- ARGZBGBUZXUAHM-UHFFFAOYSA-L potassium sodium hydrogen sulfite sulfooxy sulfate Chemical compound [Na+].[K+].OS([O-])=O.OS(=O)(=O)OOS([O-])(=O)=O ARGZBGBUZXUAHM-UHFFFAOYSA-L 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- 244000248349 Citrus limon Species 0.000 claims description 3
- 235000005979 Citrus limon Nutrition 0.000 claims description 3
- VKEQBMCRQDSRET-UHFFFAOYSA-N Methylone Chemical compound CNC(C)C(=O)C1=CC=C2OCOC2=C1 VKEQBMCRQDSRET-UHFFFAOYSA-N 0.000 claims description 3
- VTYVIFFJJXAHTG-UHFFFAOYSA-M azanium;sodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [NH4+].[Na+].[O-]S([O-])(=O)=S VTYVIFFJJXAHTG-UHFFFAOYSA-M 0.000 claims description 3
- LNZBSVNIMBHSAG-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-2-(methylamino)hexan-1-one Chemical compound CCCCC(NC)C(=O)c1ccc2OCOc2c1 LNZBSVNIMBHSAG-UHFFFAOYSA-N 0.000 claims 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims 1
- 150000003863 ammonium salts Chemical class 0.000 claims 1
- 125000004494 ethyl ester group Chemical group 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 claims 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000012190 activator Substances 0.000 abstract 1
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 16
- 239000003292 glue Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 10
- 238000004064 recycling Methods 0.000 description 9
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 8
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 8
- 230000006378 damage Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012456 homogeneous solution Substances 0.000 description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 229960000583 acetic acid Drugs 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000011017 operating method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
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- 241000196324 Embryophyta Species 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- AUZRCMMVHXRSGT-UHFFFAOYSA-N 2-methylpropane-1-sulfonic acid;prop-2-enamide Chemical class NC(=O)C=C.CC(C)CS(O)(=O)=O AUZRCMMVHXRSGT-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- UPBLAVFWWWKVAJ-UHFFFAOYSA-N [Cl].CCC Chemical compound [Cl].CCC UPBLAVFWWWKVAJ-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
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- 239000011159 matrix material Substances 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- KCXFHTAICRTXLI-UHFFFAOYSA-N propane-1-sulfonic acid Chemical compound CCCS(O)(=O)=O KCXFHTAICRTXLI-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000000446 sulfanediyl group Chemical group *S* 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000009466 transformation Effects 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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
-
- 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
- C09K8/607—Compositions for stimulating production by acting on the underground formation specially adapted for clay formations
-
- 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
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- 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
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
-
- 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
- C09K2208/26—Gel breakers other than bacteria or enzymes
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention belongs to the technical field of oil field production increase, and particularly provides slickwater fracturing fluid for a low-temperature reservoir, which comprises the following components in percentage by mass: 0.15-0.25% of thickening agent, 0.03-0.05% of clay stabilizer, 0.20-0.30% of structural stabilizer, 0.05-0.10% of low-temperature activator, 0.02-0.05% of gel breaker and the balance of water.
Description
Technical field
The invention belongs to oilfield stimulation technical fields, and in particular to a kind of low temperature reservoir slippery water fracturing fluid.
Background technology
Pressure break has been rapidly developed as the Main Yield-increasing of oil-gas reservoir, well stimulation and extensive use.Pressure break is exactly profit
It presses off stratum to form crack with pressure, proppant is used in combination to support it, to reduce volume increase, the augmented injection of fluid flow resistance
Measure.The purpose of pressure break is exactly to form the crack with flow conductivity in the earth formation, and the fracturing fluid of use is largely determined
Fracturing effect is determined, while the viscosity of fracturing fluid there are certain requirements, the fluid that it can be known as low viscosity after pressure break is made to be easy
The row of returning damages to avoid to the oil-gas Layer in stratum.
Domestic and international most common fracturing fluid is mainly using guanidine glue and its modifier as the aqueous fracturing fluid of thickening agent, at present
It is widely applied in each oil field, and achieves good effect of increasing production.But celebrate oil gas field densification oil-gas reservoir pressure break with long
The change of work pattern and Environmental Protection Situation are increasingly severe, it is desirable that aqueous fracturing fluid in addition to Low Damage, low frictional resistance, low cost,
Except the easy row of returning, easy continuous mixture feature, also there is the characteristics of easily recycling, high recycling rate, drain is returned after being pressed with reduction
Pollution to environment and soil, while requiring to reduce industrial water quantity.And guanidine glue and its modifier have natural plant gum easily corrupt
Inadequate natural endowment disadvantage, it is difficult to return drain processing by chemical crosslinking the formation of and fracturing fluid system complicated component, frozen glue after breaking gel
Degree is big, of high cost, reuses poor feasibility.Since the disadvantages described above of the plant gum fracturing fluids such as guanidine glue can neither alleviate environmentally friendly pressure
Power cannot meet above-mentioned site operation requirement again, so extensive at present use polymerization species fracturing fluid to solve the above problems.
Acrylamide copolymer thickener kind used at present is more, wherein with guanidine glue and its thickener of derivative
It is most widely used, but generally existing breaks the problems such as glue is not thorough, easily returns glue, breaking glue solution residue content is higher, is easy to form blocking
Injury causes matrix permeability and fracture condudtiviy to decline, to influence fracturing transformation effect, while natural plant gum class fracturing fluid
Pipeline frictional resistance is higher, causes well head pressure under same displacement higher, and more water horse power is caused to be lost and higher construction risk.
Synthesized polymer species thickener includes mainly polyacrylamide, Sodium Polyacrylate, polyacrylate and polyvinyl alcohol etc., is generally had
There is the features such as strong, the broken colloidality of thickening capabilities can be good, residue is few, but cost is generally higher, does not utilize field popularization application.It is same with this
When, since low temperature reservoir temperature is relatively low, polymer fracturing fluid is particularly prominent due to the larger not degradable disadvantage performance of molecular weight
Go out, certain injury is caused to stratum.It is current low to meet therefore, it is necessary to form a kind of new slippery water fracturing fluid system
The needs of warm reservoir densification oil-gas reservoir reservoir reconstruction.
Invention content
The purpose of the present invention is developing a kind of low temperature reservoir slippery water fracturing fluid, low viscosity, low frictional resistance, low disclosure satisfy that
The fracturing fluid system of the features such as cost, the easily row of returning, easy recycling, while glue can be broken rapidly in low temperature reservoir, it reduces to stratum
Injury, so as to more preferably meet low permeability oil and gas field low temperature reservoir reconstruction needs.
For this purpose, the present invention provides a kind of low temperature reservoir slippery water fracturing fluids, by following component and its mass percent
Composition：
Thickener 0.15%-0.25%
Clay stabilizer 0.03%-0.05%
Structural stabilizing agent 0.20%-0.30%
Low-temp activation agent 0.05%-0.10%
Gel breaker 0.02%-0.05%
Remaining composition is water.
The thickener is acrylamide copolymer, and the acrylamide copolymer is by following component and its matter
Measure percentage composition：Hydrophily acrylmonomers 30% ~ 50%, emulsifier 1% ~ 2%, cause hydrophobicity acrylmonomers 3% ~ 5%
Agent 0.2% ~ 0.5%, latency crosslinking agent and surplus water, wherein the latency crosslinking agent accounts for the hydrophily acrylic
The 0.5% ~ 1.8% of monomer and the hydrophobicity acrylmonomers quality sum.
The hydrophily acrylmonomers are by acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics
It mixes, the mass ratio of the acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics is 14：3：3；
The hydrophobicity acrylmonomers are by octadecyl acrylate, octadecyl methacrylate, methoxy poly (ethylene glycol) methyl
One kind or more in acrylate, maleic acid single-long-chain alkyl ester sodium salt, Long carbon chain alkyl dimethyl allyl ammonium chloride
Kind mixes；
The emulsifier is by sorbitan fatty acid ester, alkyl phenol polyoxyethylene ether, neopelex, dodecane
One or more in base sodium sulfonate or lauryl sodium sulfate mix；
The initiator is by ammonium persulfate, potassium peroxydisulfate, ammonium persulfate-sodium sulfite, potassium peroxydisulfate-sodium sulfite, over cure
One or more in sour ammonium-sodium thiosulfate, potassium peroxydisulfate-sodium thiosulfate or water-soluble azo initiator mix；
The latency crosslinking agent is mixed by one or both of hydroxy-ethyl acrylate and hydroxyethyl methacrylate.
The clay stabilizer is quaternary ammonium salt, and quaternary ammonium salt is by trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl
One or both of ammonium bromide mixes base season, trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide
Mass ratio is 1:1 ~ 1.5, trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide by trimethyl tertiary amine, dimethylamine
And its hydrochloride reacts generation with epoxychloropropane, butane, pentamethylene.
The structural stabilizing agent by ethylene oxide, propylene oxide and 2- methacrylic acids reaction purification after pure substance with
Methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, methacrylic acid fourth
Ester, Hexyl 2-propenoate, hexyl methacrylate, octadecyl acrylate, octadecyl methacrylate or methoxy poly (ethylene glycol) first
One or more and aluminium citrate compounding in base acrylate dissolves, the ethylene oxide, propylene oxide and 2- first
The mass ratio of base acrylic acid is 1.0-1.5:0. 2 -0.3：1, pure substance and methyl acrylate, methyl methacrylate, propylene
Acetoacetic ester, ethyl methacrylate, butyl acrylate, butyl methacrylate, Hexyl 2-propenoate, hexyl methacrylate, third
One or more and citric acid in olefin(e) acid octadecyl ester, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer
The mass ratio of aluminium is 6-8:1-2：1.
The low-temp activation agent is mixed by one or more of hydrochloric acid, citric acid, acetic acid, gluconic acid.
The gel breaker is mixed by one kind in ammonium persulfate, potassium peroxydisulfate, hydrogen peroxide, magnesium hypochlorite with L-AA
It closes.
Compared with the prior art, the present invention has the following advantages：
（1）Easily swelling, may be implemented continuous mixture；
（2）It can be by adjusting thickener concentration, it can be achieved that whole process takes sand；
（3）It is not susceptible to bacteria effect, is not easy corruption；Heat resistance is good；
（4）Construction friction is low, it can be achieved that huge discharge is continuously constructed；
（5）It returns drain recycling and only needs to do that simple filtration processing is i.e. reusable, and simple for process, utilization rate is high；
（6）Glue can be broken rapidly at low ambient temperatures, reservoir damage is small.
Specific implementation mode
Embodiment 1：
A kind of low temperature reservoir slippery water fracturing fluid, by following component and its mass percentage composition：Thickener 0.15%-
0.25%, clay stabilizer 0.03%-0.05%, structural stabilizing agent 0.20%-0.30%, low-temp activation agent 0.05%-0.10%, broken glue
Agent 0.02%-0.05%, remaining composition are water.
The thickener is acrylamide copolymer, and the acrylamide copolymer is by following component and its matter
Measure percentage composition：Hydrophily acrylmonomers 30% ~ 50%, emulsifier 1% ~ 2%, cause hydrophobicity acrylmonomers 3% ~ 5%
Agent 0.2% ~ 0.5%, latency crosslinking agent and surplus water, wherein the latency crosslinking agent accounts for the hydrophily acrylic
The 0.5% ~ 1.8% of monomer and the hydrophobicity acrylmonomers quality sum.
The hydrophily acrylmonomers are by acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics
It mixes, the mass ratio of the acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics is 14：3：3；
The hydrophobicity acrylmonomers are by octadecyl acrylate, octadecyl methacrylate, methoxy poly (ethylene glycol) methyl
One kind or more in acrylate, maleic acid single-long-chain alkyl ester sodium salt, Long carbon chain alkyl dimethyl allyl ammonium chloride
Kind mixes；
The emulsifier is by sorbitan fatty acid ester, alkyl phenol polyoxyethylene ether, neopelex, dodecane
One or more in base sodium sulfonate or lauryl sodium sulfate mix；
The initiator is by ammonium persulfate, potassium peroxydisulfate, ammonium persulfate-sodium sulfite, potassium peroxydisulfate-sodium sulfite, over cure
One or more in sour ammonium-sodium thiosulfate, potassium peroxydisulfate-sodium thiosulfate or water-soluble azo initiator mix；
The latency crosslinking agent is mixed by one or both of hydroxy-ethyl acrylate and hydroxyethyl methacrylate.
The clay stabilizer is quaternary ammonium salt, and quaternary ammonium salt is by trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl
One or both of ammonium bromide mixes base season, trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide
Mass ratio is 1:1 ~ 1.5, trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide by trimethyl tertiary amine, dimethylamine
And its hydrochloride reacts generation with epoxychloropropane, butane, pentamethylene.
The structural stabilizing agent by ethylene oxide, propylene oxide and 2- methacrylic acids reaction purification after pure substance with
Methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, methacrylic acid fourth
Ester, Hexyl 2-propenoate, hexyl methacrylate, octadecyl acrylate, octadecyl methacrylate or methoxy poly (ethylene glycol) first
One or more and aluminium citrate compounding in base acrylate dissolves, the ethylene oxide, propylene oxide and 2- first
The mass ratio of base acrylic acid is 1.0-1.5:0. 2 -0.3：1, pure substance and methyl acrylate, methyl methacrylate, propylene
Acetoacetic ester, ethyl methacrylate, butyl acrylate, butyl methacrylate, Hexyl 2-propenoate, hexyl methacrylate, third
One or more and citric acid in olefin(e) acid octadecyl ester, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer
The mass ratio of aluminium is 6-8:1-2：1.
The low-temp activation agent is mixed by one or more of hydrochloric acid, citric acid, acetic acid, gluconic acid.
The gel breaker is mixed by one kind in ammonium persulfate, potassium peroxydisulfate, hydrogen peroxide, magnesium hypochlorite with L-AA
It closes.
The present invention low temperature reservoir be with the preparation method of slippery water fracturing fluid：It is full of in container at the scene and matches liquid water,
Again with thickener is slowly added in the case of pump circulation, then press successively formula rate be added clay stabilizer, low-temp activation agent,
Gel breaker continues 20 minutes to ensure that liquid mixes well, forms homogeneous solution, then add structural stabilizing agent, fully follow
Slippery water fracturing fluid is formed after ring.
This low temperature reservoir provided by the invention is easily swollen with slippery water fracturing fluid, and continuous mixture may be implemented；It can lead to
Adjustment thickener concentration is crossed, it can be achieved that whole process takes sand；It is not susceptible to bacteria effect, is not easy corruption；Heat resistance is good；Construction friction
It is low, it can be achieved that huge discharge is continuously constructed；Returning drain recycling, only to need to do simple filtration processing i.e. reusable, simple for process,
Utilization rate is high；Glue can be broken rapidly at low ambient temperatures, reservoir damage is small.
Embodiment 2：
It is taken by following component and its mass percent：Thickener 0.15%, trimethyl hydroxypropyl season ammonium chloride or trimethyl hydroxypropyl
Season ammonium bromide 0.03%, structural stabilizing agent 0.20%, hydrochloric acid or citric acid 0.05%, gel breaker 0.02%, water surplus.
The thickener is acrylamide copolymer, and the acrylamide copolymer is by following component and its matter
Measure percentage composition：Hydrophily acrylmonomers 30%, emulsifier 1%, initiator 0.2%, are dived at hydrophobicity acrylmonomers 3%
The water of volt property crosslinking agent and surplus, wherein the latency crosslinking agent accounts for hydrophily acrylmonomers and described hydrophobic
The 0.5% of property acrylmonomers quality sum.The hydrophily acrylmonomers are by acrylamide, methacrylic acid and 2- propylene
Amide -2- methyl propane sulfonic acids mix, the acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics
Mass ratio is 14：3：3；The hydrophobicity acrylmonomers are by one kind in octadecyl acrylate, octadecyl methacrylate
Or two kinds mix；The emulsifier is by one kind or two in sorbitan fatty acid ester and alkyl phenol polyoxyethylene ether
Kind mixes；The initiator is by one or more mixed in ammonium persulfate, potassium peroxydisulfate, ammonium persulfate-sodium sulfite
It closes；The latency crosslinking agent is hydroxy-ethyl acrylate.
The structural stabilizing agent by ethylene oxide, propylene oxide and 2- methacrylic acids reaction purification after pure substance with
In methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate one or more compoundings dissolving and
At the mass ratio of the ethylene oxide, propylene oxide and 2- methacrylic acids is 1.0:0. 2 ：1, pure substance and acrylic acid
One or more and aluminium citrate in methyl esters, methyl methacrylate, ethyl acrylate, ethyl methacrylate compounds mixed
The mass ratio for closing object is 6:2:1.
The gel breaker is mixed by one kind in ammonium persulfate, potassium peroxydisulfate with L-AA.
Specifically operating method is：
At the scene in 50 m3 containers full of matching liquid water, then with thickener 0.15% is slowly added in the case of pump circulation, then
Formula rate is pressed successively, trimethyl hydroxypropyl season ammonium chloride 0.03%, hydrochloric acid or citric acid 0.05%, gel breaker 0.02% is added, hold
To ensure that liquid mixes well, homogeneous solution is formed, structural stabilizing agent 0.20% is then added within continuous 20 minutes, fully after cycle
Form slippery water fracturing fluid.The low temperature reservoir with slippery water fracturing fluid viscosity is 4.5mpas, drag reducing efficiency 68%, low cost compared with
Conventional guanidine colloid system reduces by 66%, and it is 98.4% that the row of returning, which leads, easily recycling, and cost reduction 20% is reusable, environmentally protective.
Embodiment 3：
It is taken by following component and its mass percent：Thickener 0.25%, clay stabilizer 0.05%, structural stabilizing agent 0.30%, vinegar
Acid or gluconic acid 0.1%, gel breaker 0.05%, water surplus.
The thickener is acrylamide copolymer, and the acrylamide copolymer is by following component and its matter
Measure percentage composition：Hydrophily acrylmonomers 50%, emulsifier 2%, initiator 0.5%, are dived at hydrophobicity acrylmonomers 5%
The water of volt property crosslinking agent and surplus, wherein the latency crosslinking agent accounts for hydrophily acrylmonomers and described hydrophobic
The 1.8% of property acrylmonomers quality sum.The hydrophily acrylmonomers are by acrylamide, methacrylic acid and 2- propylene
Amide -2- methyl propane sulfonic acids mix, the acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics
Mass ratio is 14：3：3；The hydrophobicity acrylmonomers are by methoxy polyethylene glycol methacrylate-styrene polymer, maleic acid
One or both of single-long-chain alkyl ester sodium salt mixes；The emulsifier is by neopelex, dodecane
One or both of base sodium sulfonate mixes；The initiator is thio by potassium peroxydisulfate-sodium sulfite, ammonium persulfate-
One or more in sodium sulphate mix；The latency crosslinking agent is hydroxyethyl methacrylate.
The clay stabilizer is quaternary ammonium salt, and quaternary ammonium salt is by trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl
Base season, ammonium bromide mixed, trimethyl hydroxypropyl season ammonium chloride and the mass ratio of trimethyl hydroxypropyl season ammonium bromide be 1:1, three
Methylhydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide by trimethyl tertiary amine, dimethylamine and its hydrochloride and epoxy chlorine
Propane, butane, pentamethylene reaction generate.
The structural stabilizing agent by ethylene oxide, propylene oxide and 2- methacrylic acids reaction purification after pure substance with
In butyl acrylate, butyl methacrylate, Hexyl 2-propenoate, hexyl methacrylate one or more compoundings dissolving and
At the mass ratio of the ethylene oxide, propylene oxide and 2- methacrylic acids is 1.5:0.3:1, pure substance and acrylic acid fourth
The mixing of one or more and aluminium citrate compounding in ester, butyl methacrylate, Hexyl 2-propenoate, hexyl methacrylate
The quality of object is 8:1:1.
The gel breaker is mixed by one kind in hydrogen peroxide, magnesium hypochlorite with L-AA.
Specifically operating method is：
At the scene in 50 m3 containers full of matching liquid water, then with thickener 0.25% is slowly added in the case of pump circulation, then
Press formula rate successively and clay stabilizer 0.05%, acetic acid or gluconic acid 0.1%, gel breaker 0.05% be added, continue 20 minutes with
Ensure that liquid mixes well, form homogeneous solution, then add structural stabilizing agent 0.30%, fully forms slippery water after cycle
Fracturing fluid.The low temperature reservoir with slippery water fracturing fluid viscosity is 4.2mpas, drag reducing efficiency 69%, the more conventional guanidine colloid of low cost
System reduces by 65%, and it is 98.7% that the row of returning, which leads, easily recycling, and cost reduction 25% is reusable, environmentally protective.
Embodiment 4：
It is taken by following component and its mass percent：Thickener 0.20%, clay stabilizer 0.04%, structural stabilizing agent 0.25%, vinegar
Mixture 0.75%, the gel breaker 0.35% of acid and hydrochloric acid, water surplus.
The thickener is acrylamide copolymer, and the acrylamide copolymer is by following component and its matter
Measure percentage composition：Hydrophily acrylmonomers 40%, hydrophobicity acrylmonomers 4%, emulsifier 1.5%, initiator 0.35%,
The water of latency crosslinking agent and surplus, wherein the latency crosslinking agent account for the hydrophily acrylmonomers and it is described dredge
The 1.15% of aqueous acrylamide base monomer mass sum.The hydrophily acrylmonomers are by acrylamide, methacrylic acid and 2- third
Acrylamide -2- methyl propane sulfonic acids mix, the acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics
Mass ratio be 14：3：3；The hydrophobicity acrylmonomers are Long carbon chain alkyl dimethyl allyl ammonium chloride；Described
Emulsifier is lauryl sodium sulfate；The initiator is by potassium peroxydisulfate-sodium thiosulfate or water-soluble azo initiator
One or more mix；The latency crosslinking agent by hydroxy-ethyl acrylate and hydroxyethyl methacrylate mixing and
At.
The clay stabilizer is quaternary ammonium salt, and quaternary ammonium salt is by trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl
Base season, ammonium bromide mixed, trimethyl hydroxypropyl season ammonium chloride and the mass ratio of trimethyl hydroxypropyl season ammonium bromide be 1:1.5
Trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide by trimethyl tertiary amine, dimethylamine and its hydrochloride and epoxy
Chloropropane, butane, pentamethylene reaction generate.
The structural stabilizing agent by ethylene oxide, propylene oxide and 2- methacrylic acids reaction purification after pure substance with
One or more compoundings in octadecyl acrylate, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer are molten
It solves, the mass ratio of the ethylene oxide, propylene oxide and 2- methacrylic acids is 1.25:0.25:1, pure substance and third
One or more and citric acid in olefin(e) acid octadecyl ester, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer
The mass ratio of the mixture of aluminium compounding is 7:1.5:1.
The gel breaker is mixed by ammonium sulfate and L-AA.
Specifically operating method is：
At the scene in 50 m3 containers full of matching liquid water, then with thickener 0.20% is slowly added in the case of pump circulation, then
Formula rate is pressed successively, clay stabilizer 0.04%, the mixture 0.75% of acetate and hydrochloride, gel breaker 0.35% is added, continue 20
Minute to ensure that liquid mixes well, forms homogeneous solution, then adds structural stabilizing agent 0.25%, is fully formed after cycle
Slippery water fracturing fluid.The low temperature reservoir with slippery water fracturing fluid viscosity is 4.1mpas, drag reducing efficiency 70%, low cost are more conventional
Guanidine colloid system reduces by 68%, and it is 98.9% that the row of returning, which leads, easily recycling, and cost reduction 27% is reusable, environmentally protective.
Embodiment 5：
It is taken by following component and its mass percent：Thickener 0.19%, clay stabilizer 0.35%, structural stabilizing agent 0.27%, lemon
The mixture 0.70% of lemon acid and gluconic acid, gel breaker 0.38%, water surplus.
The thickener is acrylamide copolymer, and the acrylamide copolymer is by following component and its matter
Measure percentage composition：Hydrophily acrylmonomers 38%, hydrophobicity acrylmonomers 3.7%, emulsifier 1.7%, initiator
0.40%, the water of latency crosslinking agent and surplus, wherein the latency crosslinking agent account for the hydrophily acrylmonomers and
The 1.3% of the hydrophobicity acrylmonomers quality sum.The hydrophily acrylmonomers are by acrylamide, methacrylic acid
It is mixed with 2- acrylamide-2-methyl propane sulfonics, the acrylamide, methacrylic acid and 2- acrylamide -2- methyl
The mass ratio of propane sulfonic acid is 14：3：3；The hydrophobicity acrylmonomers are by octadecyl methacrylate, Long carbon chain alkyl two
One or both of methacrylic chlorination ammonium mixes；The emulsifier is lauryl sodium sulfate；Described draws
Hair agent is mixed by one or more in ammonium persulfate-sodium sulfite or potassium peroxydisulfate-sodium thiosulfate；The latency
Crosslinking agent is hydroxyethyl methacrylate.
The clay stabilizer is quaternary ammonium salt, and quaternary ammonium salt is by trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl
Base season, ammonium bromide mixed, trimethyl hydroxypropyl season ammonium chloride and the mass ratio of trimethyl hydroxypropyl season ammonium bromide be 1:
1.25, trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide by trimethyl tertiary amine, dimethylamine and its hydrochloride
Generation is reacted with epoxychloropropane, butane, pentamethylene.
The structural stabilizing agent by ethylene oxide, propylene oxide and 2- methacrylic acids reaction purification after pure substance with
One or more compoundings in octadecyl acrylate, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer are molten
It solves, the mass ratio of the ethylene oxide, propylene oxide and 2- methacrylic acids is 1.2:0.2:1, pure substance and propylene
One or more and aluminium citrate in sour octadecyl ester, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer
The mixture quality ratio of compounding is 7：1.3：1.
The gel breaker is mixed by hydrogen peroxide and L-AA.
Specifically operating method is：
At the scene in 50 m3 containers full of matching liquid water, then with thickener 0.19% is slowly added in the case of pump circulation, then
Clay stabilizer 0.35%, citric acid and gluconic acid is added in formula rate mixture 0.70%, gel breaker 0.38% are pressed successively,
Continue 20 minutes to ensure that liquid mixes well, form homogeneous solution, then add structural stabilizing agent 0.27%, fully recycles
Slippery water fracturing fluid is formed afterwards.The low temperature reservoir with slippery water fracturing fluid viscosity is 4.0mpas, drag reducing efficiency 71%, low cost
More conventional guanidine colloid system reduces by 67%, and it is 98.6% that the row of returning, which leads, easily recycling, and cost reduction 28% is reusable, environmentally protective.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
Be with the present invention it is same or analogous design all belong to the scope of protection of the present invention within.
Claims (7)
1. a kind of low temperature reservoir slippery water fracturing fluid, it is characterised in that：By following component and its mass percentage composition：
Thickener 0.15%-0.25%
Clay stabilizer 0.03%-0.05%
Structural stabilizing agent 0.20%-0.30%
Low-temp activation agent 0.05%-0.10%
Gel breaker 0.02%-0.05%
Remaining composition is water.
2. low temperature reservoir slippery water fracturing fluid as described in claim 1, it is characterised in that：The thickener is acryloyl
Amine polymer, the acrylamide copolymer is by following component and its mass percentage composition：Hydrophily acrylic list
Body 30% ~ 50%, hydrophobicity acrylmonomers 3% ~ 5%, emulsifier 1% ~ 2%, initiator 0.2% ~ 0.5%, latency crosslinking agent and
The water of surplus, wherein the latency crosslinking agent accounts for the hydrophily acrylmonomers and the hydrophobicity acrylmonomers
The 0.5% ~ 1.8% of quality sum.
3. low temperature reservoir slippery water fracturing fluid as claimed in claim 2, it is characterised in that：
The hydrophily acrylmonomers are mixed by acrylamide, methacrylic acid with 2- acrylamide-2-methyl propane sulfonics
It forms, the mass ratio of the acrylamide, methacrylic acid and 2- acrylamide-2-methyl propane sulfonics is 14：3：3；
The hydrophobicity acrylmonomers are by octadecyl acrylate, octadecyl methacrylate, methoxy poly (ethylene glycol) methyl
One kind or more in acrylate, maleic acid single-long-chain alkyl ester sodium salt, Long carbon chain alkyl dimethyl allyl ammonium chloride
Kind mixes；
The emulsifier is by sorbitan fatty acid ester, alkyl phenol polyoxyethylene ether, neopelex, dodecane
One or more in base sodium sulfonate or lauryl sodium sulfate mix；
The initiator is by ammonium persulfate, potassium peroxydisulfate, ammonium persulfate-sodium sulfite, potassium peroxydisulfate-sodium sulfite, over cure
One or more in sour ammonium-sodium thiosulfate, potassium peroxydisulfate-sodium thiosulfate or water-soluble azo initiator mix；
The latency crosslinking agent is mixed by one or both of hydroxy-ethyl acrylate and hydroxyethyl methacrylate.
4. low temperature reservoir slippery water fracturing fluid as claimed in claim 3, it is characterised in that：The clay stabilizer is season
Ammonium salt class, quaternary ammonium salt are mixed by one or both of trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide
Form, trimethyl hydroxypropyl season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide mass ratio be 1:1 ~ 1.5, trimethyl hydroxypropyl
Season ammonium chloride and trimethyl hydroxypropyl season ammonium bromide by trimethyl tertiary amine, dimethylamine and its hydrochloride and epoxychloropropane, butane,
Pentamethylene reaction generates.
5. low temperature reservoir slippery water fracturing fluid as claimed in claim 4, it is characterised in that：The structural stabilizing agent is by ring
Pure substance after oxidative ethane, propylene oxide and the reaction purification of 2- methacrylic acids and methyl acrylate, methyl methacrylate, third
Olefin(e) acid ethyl ester, ethyl methacrylate, butyl acrylate, butyl methacrylate, Hexyl 2-propenoate, hexyl methacrylate,
One or more and lemon in octadecyl acrylate, octadecyl methacrylate or methoxy polyethylene glycol methacrylate-styrene polymer
Sour aluminium compounding dissolves, and the mass ratio of the ethylene oxide, propylene oxide and 2- methacrylic acids is 1.0-1.5:0. 2
-0.3：1, pure substance and methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, acrylic acid fourth
Ester, butyl methacrylate, Hexyl 2-propenoate, hexyl methacrylate, octadecyl acrylate, octadecyl methacrylate or first
The mass ratio of one or more and aluminium citrate in oxygroup polyethylene glycol methacrylate-styrene polymer is 6-8:1-2：1.
6. low temperature reservoir slippery water fracturing fluid as claimed in claim 5, it is characterised in that：The low-temp activation agent is by salt
One or more of acid, citric acid, acetic acid, gluconic acid mix.
7. low temperature reservoir slippery water fracturing fluid as claimed in claim 6, it is characterised in that：The gel breaker is by persulfuric acid
One kind in ammonium, potassium peroxydisulfate, hydrogen peroxide, magnesium hypochlorite is mixed with L-AA.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295036A (en) * | 2019-06-14 | 2019-10-01 | 中国石油天然气股份有限公司 | Slickwater fracturing fluid for medium-high temperature compact reservoir and preparation method thereof |
| CN110437818A (en) * | 2019-08-23 | 2019-11-12 | 西南石油大学 | A kind of broken glue activator and preparation method thereof suitable for 20-50 DEG C of reservoir fracturing |
| CN111234796A (en) * | 2020-01-21 | 2020-06-05 | 中国石油天然气股份有限公司 | Surfactant and preparation method thereof |
| CN111378424A (en) * | 2020-03-25 | 2020-07-07 | 大庆油田有限责任公司 | Continuous sand-carrying slick water system |
| CN116200183A (en) * | 2023-03-02 | 2023-06-02 | 四川申和新材料科技有限公司 | High-efficiency variable-viscosity fracturing fluid for deep coal bed gas development and integrated construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110295036A (en) * | 2019-06-14 | 2019-10-01 | 中国石油天然气股份有限公司 | Slickwater fracturing fluid for medium-high temperature compact reservoir and preparation method thereof |
| CN110437818A (en) * | 2019-08-23 | 2019-11-12 | 西南石油大学 | A kind of broken glue activator and preparation method thereof suitable for 20-50 DEG C of reservoir fracturing |
| CN111234796A (en) * | 2020-01-21 | 2020-06-05 | 中国石油天然气股份有限公司 | Surfactant and preparation method thereof |
| CN111378424A (en) * | 2020-03-25 | 2020-07-07 | 大庆油田有限责任公司 | Continuous sand-carrying slick water system |
| CN116200183A (en) * | 2023-03-02 | 2023-06-02 | 四川申和新材料科技有限公司 | High-efficiency variable-viscosity fracturing fluid for deep coal bed gas development and integrated construction method |
| CN116200183B (en) * | 2023-03-02 | 2024-05-28 | 四川申和新材料科技有限公司 | High-efficiency variable-viscosity fracturing fluid for deep coal bed gas development and integrated construction method |
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Application publication date: 20180928 |