DK2970744T3 - Synergistisk effekt af co-overfladeaktive midler på reologisk egenskaber af bore-, færdiggørelses- og frakturerings-fluider - Google Patents
Synergistisk effekt af co-overfladeaktive midler på reologisk egenskaber af bore-, færdiggørelses- og frakturerings-fluider Download PDFInfo
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- DK2970744T3 DK2970744T3 DK14709645.7T DK14709645T DK2970744T3 DK 2970744 T3 DK2970744 T3 DK 2970744T3 DK 14709645 T DK14709645 T DK 14709645T DK 2970744 T3 DK2970744 T3 DK 2970744T3
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- Prior art keywords
- fluid
- viscoelastic
- surfactant
- alkyl
- carbon atoms
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- 239000012530 fluid Substances 0.000 title claims description 117
- 230000002195 synergetic effect Effects 0.000 title claims description 9
- 239000004094 surface-active agent Substances 0.000 claims description 51
- 239000000203 mixture Substances 0.000 claims description 29
- 125000000217 alkyl group Chemical group 0.000 claims description 27
- 125000004432 carbon atom Chemical group C* 0.000 claims description 21
- 238000005553 drilling Methods 0.000 claims description 15
- 239000003921 oil Substances 0.000 claims description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 10
- -1 ethyl hydroxy groups Chemical group 0.000 claims description 9
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 9
- 230000000638 stimulation Effects 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229940117986 sulfobetaine Drugs 0.000 claims description 7
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- SYWDPPFYAMFYQQ-KTKRTIGZSA-N (z)-docos-13-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCCN SYWDPPFYAMFYQQ-KTKRTIGZSA-N 0.000 claims description 5
- 239000003925 fat Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 5
- 239000003760 tallow Substances 0.000 claims description 5
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 4
- 235000004977 Brassica sinapistrum Nutrition 0.000 claims description 4
- 239000002280 amphoteric surfactant Substances 0.000 claims description 4
- 239000011630 iodine Substances 0.000 claims description 4
- 229910052740 iodine Inorganic materials 0.000 claims description 4
- 239000003784 tall oil Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([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])[H] 0.000 claims description 2
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 235000005985 organic acids Nutrition 0.000 claims description 2
- 230000020477 pH reduction Effects 0.000 claims 6
- 239000002253 acid Substances 0.000 claims 4
- 229930195734 saturated hydrocarbon Natural products 0.000 claims 4
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims 4
- 244000188595 Brassica sinapistrum Species 0.000 claims 2
- 125000004183 alkoxy alkyl group Chemical group 0.000 claims 2
- 239000010779 crude oil Substances 0.000 claims 2
- MPNXSZJPSVBLHP-UHFFFAOYSA-N 2-chloro-n-phenylpyridine-3-carboxamide Chemical compound ClC1=NC=CC=C1C(=O)NC1=CC=CC=C1 MPNXSZJPSVBLHP-UHFFFAOYSA-N 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- FOCAUTSVDIKZOP-UHFFFAOYSA-N chloroacetic acid Chemical compound OC(=O)CCl FOCAUTSVDIKZOP-UHFFFAOYSA-N 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims 1
- 125000004417 unsaturated alkyl group Chemical group 0.000 claims 1
- 239000004064 cosurfactant Substances 0.000 description 39
- VNDYJBBGRKZCSX-UHFFFAOYSA-L zinc bromide Chemical compound Br[Zn]Br VNDYJBBGRKZCSX-UHFFFAOYSA-L 0.000 description 32
- 239000012267 brine Substances 0.000 description 23
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 23
- 229910001622 calcium bromide Inorganic materials 0.000 description 17
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 description 17
- 239000004576 sand Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 14
- 150000003839 salts Chemical class 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 239000000499 gel Substances 0.000 description 7
- KWIUHFFTVRNATP-UHFFFAOYSA-N glycine betaine Chemical compound C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000005755 formation reaction Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229960003237 betaine Drugs 0.000 description 3
- 125000002091 cationic group Chemical group 0.000 description 3
- 239000003093 cationic surfactant Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 240000002791 Brassica napus Species 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 235000011148 calcium chloride Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229940083575 sodium dodecyl sulfate Drugs 0.000 description 2
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 2
- QENMPTUFXWVPQZ-UHFFFAOYSA-N (2-hydroxyethylazaniumyl)formate Chemical compound OCCNC(O)=O QENMPTUFXWVPQZ-UHFFFAOYSA-N 0.000 description 1
- AMRBZKOCOOPYNY-QXMHVHEDSA-N 2-[dimethyl-[(z)-octadec-9-enyl]azaniumyl]acetate Chemical compound CCCCCCCC\C=C/CCCCCCCC[N+](C)(C)CC([O-])=O AMRBZKOCOOPYNY-QXMHVHEDSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229920006317 cationic polymer Polymers 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 150000002891 organic anions Chemical class 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229940102001 zinc bromide Drugs 0.000 description 1
- 239000002888 zwitterionic surfactant Substances 0.000 description 1
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
-
- 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
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- 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
-
- 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
-
- 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
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/74—Eroding chemicals, e.g. acids combined with additives added for specific purposes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/27—Methods for stimulating production by forming crevices or fractures by use of eroding chemicals, e.g. acids
-
- 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
- C09K2208/30—Viscoelastic surfactants [VES]
Claims (14)
1. Viskoelastisk fluid der omfatter mindst et viskoelastisk overfladeaktivt middel og mindst et synergistisk co-overfladeaktivt middel, hvor det viskoelastiske overfladeaktive middel er et amfotert overfladeaktivt middel med den almene formel (I):
(I) hvor Ri er en mættet eller umættet carbonhydridgruppe på fra 17 til 29 carbonatomer, R2 og R3 er hver uafhængigt valgt blandt en ligekædet eller forgrenet alkyl- eller hydroxyalkylgruppe på fra 1 til 6 carbonatomer, R4 er valgt blandt H, OH, alkyl- eller hydroxyalkylgrupper på fra 1 til 4 carbonatomer; k er et helt tal på fra 2-20, m er et helt tal på fra 1 -20, og n er et helt tal på fra 0-20; og det synergistiske co-overfladeaktive middel har den almene struktur (II)
hvor Ri er en mættet eller umættet carbonhydridgruppe på fra 12 til 22 carbonatomer, R2, R3 og R4 er uafhængigt valgt blandt en ligekædet eller forgrenet-alkyl-eller hydroxyalkylgruppe på fra 1 til 4 carbonatomer; og en hydroxylgruppe, hvor det viskoelastiske fluid har en densitet der er større end 1,14 g/cm3.
2. Viskoelastisk fluid ifølge krav 1, hvor Ri i den almene formel (I) er en fedtalifa-tisk gruppe der er afledt af naturlige fedtstoffer eller olier, som har en jodværdi på fra ca. 1 til 140, fortrinsvis en jodværdi på fra 30 til 90, mere fortrinsvis en jodværdi på fra 40 til 70.
3. Viskoelastisk fluid ifølge krav 2, hvor Ri i den almene formel (I) er en fedtalifa-tisk gruppe der er afledt af naturlige fedtstoffer, olier eller råoliematerialer med en
enkel kædelængde eller en blandet kædelængde, hvor de naturlige fedtstoffer og olier eller råoliematerialer er valgt blandt talg-alkyl, hærdet talg-alkyl, rapsfrø-al-kyl, hærdet rapsfrø-alkyl, tallolie-alkyl, hærdet tallolie-alkyl, coco-alkyl, oleyl, eru-cyl, soyalkyl eller kombinationer og/eller blandinger deraf.
4. Viskoelastisk fluid ifølge et hvilket som helst af kravene 1 -3, hvor i det viskoelastiske overfladeaktive middel med den almene formel (I) Ri er en umættet alkylgruppe, som har 21 carbonatomer, R2 og R3 er en methylgruppe, R4 er en hydroxylgruppe, k er lig med 3, og både m og n er 1.
5. Viskoelastisk fluid ifølge et hvilket som helst af kravene 1 -4, hvor det viskoelastiske overfladeaktive middel med den almene formel (I) er valgt blandt ercamid-propyl-hydroxypropyl-sulfobetain, ercamidpropyl-hydroxyethyl-sulfobetain, erca-midpropyl-hydroxymethyl-sulfobetain og kombinationer og blandinger deraf.
6. Viskoelastisk fluid ifølge et hvilket som helst af kravene 1 -5, hvor i det overfladeaktive middel med formlen (II) Ri er en umættet kæde af alkylgrupper på 18 carbonatomer, og R2, R3 og R4 er hydroxylgrupper, eller det nævnte co-overfla-deaktive middel er af formel (II), hvori Ri er en umættet kæde af alkylgrupper på 22 carbonatomer, R2 og R3 er ethylhydroxygrupper, og R4 er en methylgruppe.
7. Viskoelastisk fluid ifølge et hvilket som helst af kravene 1 -6, hvor det co-over-fladeaktive middel er valgt blandt talgtrimethylammoniumchlorid, erucylamin (2)-ethoxylat, kvartært ammoniumsalt eller en blanding deraf.
8. Viskoelastisk fluid ifølge et hvilket som helst af kravene 1-7, hvor koncentrationen af viskoelastisk overfladeaktivt middel i fluidsystemet er på fra 0,5 til 10 vægt-%, og koncentrationen af co-overfladeaktivt middel i fluidet er på fra 0,1 vægt-% til 4 vægt-%.
9. Viskoelastisk fluid ifølge krav 1, hvor koncentrationen af viskoelastisk overfladeaktivt middel i fluidsystemet er på fra 2 til 8 vægt-%, fortrinsvis på fra 3 til 5 vægt-%, og koncentrationen af co-overfladeaktivt middel i fluidet er på fra 0,5 til I, 5 vægt-%.
10. Brøndstimuleringssammensætning der omfatter fra 0,5 til 10 % af en blanding af mindst et viskoelastisk overfladeaktivt middel og mindst et synergistisk co-overfladeaktivt middel, hvor det viskoelastiske overfladeaktive middel er et amfo-tert overfladeaktivt middel med den almene formel (I):
(0 hvor Ri er en mættet eller umættet carbonhydridgruppe på fra 17 til 29 carbona-tomer, R2 og R3 er uafhængigt valgt blandt en ligekædet eller forgrenet alkyl- eller hydroxyalkylgruppe på fra 1 til 6 carbonatomer, R4 er valgt blandt H, OH, alkyl-eller hydroxyalkylgrupper på fra 1 til 4 carbonatomer; k er et helt tal på fra 2-20, m er et helt tal på fra 1 -20, og n er et helt tal på fra 0-20; og det synergistiske co-overfladeaktive middel har den almene struktur (II)
hvor Ri er en mættet eller umættet carbonhydridgruppe på fra 12 til 22 carbonatomer, R2, R3 og R4 er hver uafhængigt valgt blandt en ligekædet eller forgrenet alkyl- eller hydroxyalkylgruppe på fra 1 til 4 carbonatomer; og en hydroxylgruppe, hvor brøndstimuleringssammensætningen har en densitet der er større end 1,14 g/cm3. II. Brøndstimuleringsfluidet ifølge krav 10, hvor fluidet er et borefluid, et færdiggørelsesfluid, et arbejdsfluid, et forsuringsfluid, en gruspakning, et frakturerings-fluid, et matrix-forsuringsfluid, et forsuringsfluid til færdiggørelse, et forsuringsfluid til frakturering eller et forsurende fluid til fjernelse af en beskadigelse, fortrinsvis er det et bore-/færdiggørelsesfluid.
12. Forsuringsfluid der omfatter mindst en syre og det viskoelastiske fluid ifølge krav 1.
13. Forsuringsfluidet ifølge krav 12, hvor syren er valgt fra gruppen, der består af mineralsyrer, organiske syrer og blandinger deraf.
14. Forsuringsfluidet ifølge krav 13, hvor syren er valgt fra gruppen, der består af saltsyre, flussyre, eddikesyre, myresyre, sulfamidsyre, chloreddikesyre og blandinger deraf.
15. Fremgangsmåde til frakturering af en underjordisk formation, hvilken fremgangsmåde omfatter trinene: at pumpe det viskoelastiske fluid ifølge et hvilket som helst af kravene 1-10 gennem en brøndboring og ind i en underjordisk formation ved et tryk, der er tilstrækkeligt til at frakturere formationen.
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| US201361793695P | 2013-03-15 | 2013-03-15 | |
| US201361861092P | 2013-08-01 | 2013-08-01 | |
| PCT/EP2014/054759 WO2014140055A1 (en) | 2013-03-15 | 2014-03-12 | Synergistic effect of cosurfactants on the rheological performance of drilling, completion and fracturing fluids |
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| DK2970744T3 true DK2970744T3 (da) | 2018-12-03 |
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| US (1) | US10308866B2 (da) |
| EP (1) | EP2970744B1 (da) |
| BR (1) | BR112015021194B1 (da) |
| CA (1) | CA2904168C (da) |
| DK (1) | DK2970744T3 (da) |
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| WO2017074304A1 (en) | 2015-10-26 | 2017-05-04 | Halliburton Energy Services, Inc. | Micro-proppant fracturing fluid compositions for enhancing complex fracture network performance |
| US10407606B2 (en) | 2016-05-12 | 2019-09-10 | Saudi Arabian Oil Company | High temperature viscoelastic surfactant (VES) fluids comprising nanoparticle viscosity modifiers |
| US10047279B2 (en) | 2016-05-12 | 2018-08-14 | Saudi Arabian Oil Company | High temperature viscoelastic surfactant (VES) fluids comprising polymeric viscosity modifiers |
| US10655058B2 (en) * | 2016-06-30 | 2020-05-19 | Halliburton Energy Services, Inc. | Treatment fluids for stimulation of subterranean formations |
| MY197088A (en) * | 2017-03-03 | 2023-05-24 | Halliburton Energy Services Inc | Lost circulation pill for severe losses using viscoelastic surfactant technology |
| US10947443B2 (en) | 2017-03-03 | 2021-03-16 | Halliburton Energy Services, Inc. | Viscoelastic surfactant gel for perforation operations |
| US10563119B2 (en) * | 2017-07-27 | 2020-02-18 | Saudi Arabian Oil Company | Methods for producing seawater based, high temperature viscoelastic surfactant fluids with low scaling tendency |
| WO2023094434A1 (en) * | 2021-11-23 | 2023-06-01 | Nouryon Chemicals International B.V. | Surfactant composition |
| US20230366296A1 (en) * | 2022-05-12 | 2023-11-16 | Baker Hughes Oilfield Operations Llc | Methods for Transporting Scale Removal Agents into a Well |
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| US6258859B1 (en) * | 1997-06-10 | 2001-07-10 | Rhodia, Inc. | Viscoelastic surfactant fluids and related methods of use |
| US6762154B2 (en) | 2000-09-21 | 2004-07-13 | Schlumberger Technology Corporation | Viscoelastic surfactant fluids stable at high brine concentrations |
| US8785355B2 (en) * | 2001-02-13 | 2014-07-22 | Schlumberger Technology Corporation | Viscoelastic compositions |
| US7148185B2 (en) | 2001-12-03 | 2006-12-12 | Schlumberger Technology Corporation | Viscoelastic surfactant fluids stable at high brine concentration and methods of using same |
| US20060084579A1 (en) | 2004-10-15 | 2006-04-20 | Berger Paul D | Viscoelastic surfactant mixtures |
| WO2007056393A2 (en) * | 2005-11-07 | 2007-05-18 | Stepan Company | Polycationic viscoelastic compositions |
| US7461694B2 (en) * | 2005-11-16 | 2008-12-09 | Rhodia Inc. | Methods for recovering oil from an oil reservoir |
| US7556098B2 (en) * | 2006-07-14 | 2009-07-07 | Paul Daniel Berger | Oil recovery method employing amphoteric surfactants |
| US9018146B2 (en) * | 2006-11-22 | 2015-04-28 | Baker Hughes Incorporated | Method of treating a well with viscoelastic surfactant and viscosification activator |
| US20080277112A1 (en) * | 2007-05-10 | 2008-11-13 | Halliburton Energy Services, Inc. | Methods for stimulating oil or gas production using a viscosified aqueous fluid with a chelating agent to remove calcium carbonate and similar materials from the matrix of a formation or a proppant pack |
| WO2009058589A2 (en) * | 2007-10-31 | 2009-05-07 | Rhodia Inc. | Addition of zwitterionic surfactant to water soluble polymer to increase the stability of the polymers in aqueous solutions containing salt and/or surfactants |
| US7897547B1 (en) | 2009-12-21 | 2011-03-01 | Schlumberger Technology Corporation | Viscoelastic surfactant rheology modifier |
| US8418761B2 (en) * | 2010-07-29 | 2013-04-16 | Halliburton Energy Services, Inc. | Stimuli-responsive high viscosity pill |
| EP2707571B1 (en) | 2011-05-13 | 2020-10-07 | Rhodia Operations | Method for enhanced oil recovery, using a foam stabilizer |
| CA2835511C (en) * | 2011-05-23 | 2017-09-12 | Akzo Nobel Chemicals International B.V. | Thickened viscoelastic fluids and uses thereof |
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| RU2015142821A3 (da) | 2018-03-19 |
| BR112015021194A2 (pt) | 2017-07-18 |
| EP2970744B1 (en) | 2018-08-15 |
| US20160017210A1 (en) | 2016-01-21 |
| CA2904168A1 (en) | 2014-09-18 |
| RU2691906C2 (ru) | 2019-06-18 |
| RU2015142821A (ru) | 2017-04-20 |
| EP2970744A1 (en) | 2016-01-20 |
| WO2014140055A1 (en) | 2014-09-18 |
| BR112015021194B1 (pt) | 2021-09-21 |
| CA2904168C (en) | 2021-11-23 |
| US10308866B2 (en) | 2019-06-04 |
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