CN106675546A - High-temperature-resistant CO 2 foam clean association fracturing fluid and preparation method and application thereof - Google Patents
High-temperature-resistant CO 2 foam clean association fracturing fluid and preparation method and application thereof Download PDFInfo
- Publication number
- CN106675546A CN106675546A CN201611131114.5A CN201611131114A CN106675546A CN 106675546 A CN106675546 A CN 106675546A CN 201611131114 A CN201611131114 A CN 201611131114A CN 106675546 A CN106675546 A CN 106675546A
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- Prior art keywords
- fracturing fluid
- fluid
- cross
- agent
- foamed cleaning
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- 239000012530 fluid Substances 0.000 title claims abstract description 190
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000006260 foam Substances 0.000 title claims abstract description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 53
- 238000004132 cross linking Methods 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 24
- 239000002585 base Substances 0.000 claims description 56
- 239000002562 thickening agent Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000004088 foaming agent Substances 0.000 claims description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical class OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 14
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 14
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 13
- -1 alkyl methacrylate Chemical compound 0.000 claims description 13
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 10
- 229910052726 zirconium Inorganic materials 0.000 claims description 10
- 239000004971 Cross linker Substances 0.000 claims description 9
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 9
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 9
- 239000000178 monomer Substances 0.000 claims description 9
- 239000001632 sodium acetate Substances 0.000 claims description 9
- 235000017281 sodium acetate Nutrition 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000004310 lactic acid Substances 0.000 claims description 7
- 235000014655 lactic acid Nutrition 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims description 5
- 230000001186 cumulative effect Effects 0.000 claims description 5
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical class C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical group Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- 239000013110 organic ligand Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 4
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 4
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 4
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 claims description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- YXYZMHGSOKYZAF-UHFFFAOYSA-M [Cl-].C(C(=C)C)(=O)OCC[N+](C(C)(C)C)(C)C Chemical compound [Cl-].C(C(=C)C)(=O)OCC[N+](C(C)(C)C)(C)C YXYZMHGSOKYZAF-UHFFFAOYSA-M 0.000 claims description 3
- 150000001412 amines Chemical group 0.000 claims description 3
- PFKRTWCFCOUBHS-UHFFFAOYSA-N dimethyl(octadecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[NH+](C)C PFKRTWCFCOUBHS-UHFFFAOYSA-N 0.000 claims description 3
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 2
- 235000011054 acetic acid Nutrition 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 125000000129 anionic group Chemical group 0.000 claims description 2
- 125000002648 azanetriyl group Chemical group *N(*)* 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims description 2
- FGRVOLIFQGXPCT-UHFFFAOYSA-L dipotassium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [K+].[K+].[O-]S([O-])(=O)=S FGRVOLIFQGXPCT-UHFFFAOYSA-L 0.000 claims description 2
- 229930182478 glucoside Natural products 0.000 claims description 2
- 150000008131 glucosides Chemical class 0.000 claims description 2
- 239000003999 initiator Substances 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- XFTALRAZSCGSKN-UHFFFAOYSA-M sodium;4-ethenylbenzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C(C=C)C=C1 XFTALRAZSCGSKN-UHFFFAOYSA-M 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000000811 xylitol Substances 0.000 claims description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 2
- 229960002675 xylitol Drugs 0.000 claims description 2
- 235000010447 xylitol Nutrition 0.000 claims description 2
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims 2
- 239000000176 sodium gluconate Substances 0.000 claims 2
- 229940005574 sodium gluconate Drugs 0.000 claims 2
- 235000012207 sodium gluconate Nutrition 0.000 claims 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims 2
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 claims 1
- 235000011167 hydrochloric acid Nutrition 0.000 claims 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 claims 1
- 239000000052 vinegar Substances 0.000 claims 1
- 235000021419 vinegar Nutrition 0.000 claims 1
- XJUNLJFOHNHSAR-UHFFFAOYSA-J zirconium(4+);dicarbonate Chemical compound [Zr+4].[O-]C([O-])=O.[O-]C([O-])=O XJUNLJFOHNHSAR-UHFFFAOYSA-J 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 3
- 230000000996 additive effect Effects 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000010008 shearing Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000006392 deoxygenation reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 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
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 2
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- FATBGEAMYMYZAF-KTKRTIGZSA-N oleamide Chemical compound CCCCCCCC\C=C/CCCCCCCC(N)=O FATBGEAMYMYZAF-KTKRTIGZSA-N 0.000 description 2
- FATBGEAMYMYZAF-UHFFFAOYSA-N oleicacidamide-heptaglycolether Natural products CCCCCCCCC=CCCCCCCCC(N)=O FATBGEAMYMYZAF-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 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 description 1
- NVKHKMBMLSFNNU-UHFFFAOYSA-N C=CC1=CC=CC=C1.[S] Chemical compound C=CC1=CC=CC=C1.[S] NVKHKMBMLSFNNU-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 240000006365 Vitis vinifera Species 0.000 description 1
- 235000014787 Vitis vinifera Nutrition 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- IUFBBBDTDAHZOQ-UHFFFAOYSA-N carbonic acid;zirconium Chemical compound [Zr].OC(O)=O IUFBBBDTDAHZOQ-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- IDAGXRIGDWCIET-SDFKWCIISA-L disodium;(2s,3s,4s,5r)-2,3,4,5-tetrahydroxyhexanedioate Chemical compound [Na+].[Na+].[O-]C(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O IDAGXRIGDWCIET-SDFKWCIISA-L 0.000 description 1
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- DNTMQTKDNSEIFO-UHFFFAOYSA-N n-(hydroxymethyl)-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCO DNTMQTKDNSEIFO-UHFFFAOYSA-N 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 235000015424 sodium Nutrition 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 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
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F271/00—Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00
-
- 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
- C09K8/70—Compositions for forming crevices or fractures characterised by their form or by the form of their components, e.g. foams
- C09K8/703—Foams
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/26—Gel breakers other than bacteria or enzymes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides high-temperature-resistant CO2The foam clean association fracturing fluid comprises a fracturing fluid base fluid, a cross-linking agent, a gel breaker and liquid CO2Wherein the cross-linking agent and the gel breaker respectively account for 0.3-0.8% and 0-0.05% of the base fluid of the fracturing fluid in parts by mass; the liquid CO2Account for the CO230-70% of the total volume of the foam cleaning association fracturing fluid. The high-temperature CO provided by the invention2The foam clean association fracturing fluid has the characteristics of few additive types, simple preparation, controllable crosslinking, low residue, low damage, low friction, high foaming efficiency, high flowback rate and high temperature resistance.
Description
Technical field
The present invention relates to a kind of high temperature resistant CO2Foamed cleaning association fracturing fluid and preparation method and application, belongs to oil field
Production technique field.
Background technology
Hyposmosis unconventionaloil pool is hidden and there is the features such as anisotropism strong, low pressure sensitive, elastic energy be little, effectively improves
Its well yield difficulty is big.Foam fracturing fluid is that one kind puddles liquid CO on the basis of conventional fracturing fluid2Or N2Biphase gas-in-liquid
Emulsion, bubble provides high viscosity and excellent proppant carrying capacity, reduces working fluid amount.In reservoir, with temperature
Raise, at suitable pressures, liquid CO2Or N2Be converted into gaseous state, foam quality generally between 65-85%, interior phase bubble
Grain is little, can reach stable foam, is evenly distributed.Foam quality if less than 52%, referred to as energization system, typically
Fluid injection is mixed as conventional fracturing fluid, it is therefore an objective to improve the row's of returning ability.
General CO2Foam fracturing fluid have low leak-off, easily the row of returning, that viscosity is high, prop-carrying capacity is strong, little to reservoir damage etc. is excellent
Point, wherein fracturing fluid system can be viscoelastic surfactant fracturing fluid, or crosslinked fracturing fluid system, mainly be suitable for
In low pressure sensitive, the reservoir of elastic energy difference.Viscoelastic surfactant fracturing fluid is the body that early stage foam fracturing fluid is used
System, elasticity is good, injures low, but due to surfactant cost and heatproof problem, is not suitable for high temperature reservoir, therefore popularization is subject to
Limit.Conventional guanidine gum fracturing fluid system is typically alkalescence crosslinking environment, with CO2There is compatibility and ask in required sour environment
Topic, and guanidine glue acid cross-linked system is affected larger by water, cross-linking properties stability is wayward, and solid-carrying performance is poor.
Therefore, for foam fracturing fluid characteristic, it is contemplated that fracturing fluid residue injury, cost and heatproof problem, there is provided a kind of
High temperature resistant CO2Foamed cleaning association fracturing fluid and preparation method thereof has become the technical problem of this area urgent need to resolve.
The content of the invention
In order to solve above-mentioned shortcoming and defect, it is an object of the invention to provide a kind of high temperature resistant CO2Foamed cleaning is formed
Close fracturing fluid.
The present invention also aims to provide above-mentioned high temperature resistant CO2The preparation method of foamed cleaning association fracturing fluid.
The purpose of the present invention is again to provide above-mentioned high temperature resistant CO2Foamed cleaning association fracturing fluid is in oil-gas Layer pressure break
Using.
To reach above-mentioned purpose, on the one hand, the present invention provides a kind of fracturing fluid base fluid, with the gross weight of the fracturing fluid base fluid
For 100% meter, it includes：
Thickening agent 0.25-0.6%；
Foaming agent 0.3-0.6%；
Cross-linking regulator 0.1-0.5%；
Balance of water.
According to fracturing fluid base fluid of the present invention, it is preferable that counted with the gross weight of the thickening agent as 100%, this is thick
Agent includes：
According to fracturing fluid base fluid of the present invention, it is preferable that the non-ionic monomer includes N- vinylpyrrolidones, N,
One kind in N- DMAAs, N- tri- (methylol) methyl-propen amide.
According to fracturing fluid base fluid of the present invention, it is preferable that the cationic monomer includes methylacryoyloxyethyl
Trimethyl ammonium chloride, alkyl methacrylate, polydiallyldimethyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride
In the combination of one or more.
According to fracturing fluid base fluid of the present invention, it is preferable that the anionic monomer is including acrylic acid, to styrene sulphur
The combination of one or more in sour sodium, 2- acrylamido -2- methyl isophthalic acids-propane sulfonic acid.
According to fracturing fluid base fluid of the present invention, it is preferable that the initiator includes Ammonium persulfate., potassium peroxydisulfate, sulfur
The combination of one or more in potassium thiosulfate.
According to fracturing fluid base fluid of the present invention, it is preferable that the chain-transferring agent includes sodium acetate, mercaptan, nitrilo (nitrogen
River triacetic acid) in the combination of one or more.Wherein, the present invention does not make specific requirement, this area to the concrete material of mercaptan
Technical staff can need to select suitable mercaptan for use as the chain-transferring agent of the present invention according to field operation, can be with as long as ensureing
Realize the object of the invention；In the specific embodiment of the invention, chain-transferring agent mercaptan used can use lauryl mercaptan.
According to fracturing fluid base fluid of the present invention, wherein, the synthesis of the thickening agent can adopt people in the art
Method known to member, such as ternary polymerization method carries out, and those skilled in the art can also Reasonable adjustment ternary polymerization reaction
Condition, for example in specific embodiment of the present invention：Logical nitrogen deoxygenation, reaction temperature is 10-60 DEG C, and the response time is 3-
6h。
According to fracturing fluid base fluid of the present invention, it is preferable that counted with the gross weight of the foaming agent as 100%, this
Infusion is answering for 20-40% nonionic surfactants, 10-30% Gemini surface active agents and 30-60% organic solvents composition
With system.
According to fracturing fluid base fluid of the present invention, it is preferable that the nonionic surfactant includes alkyl phenol polyoxy
The combination of one or more in vinyl Ether, octyl phenol polyoxyethylene ether, NPE, pungent certain herbaceous plants with big flowers base glucoside.
According to fracturing fluid base fluid of the present invention, it is preferable that the Gemini surface active agent includes trimethylene base double (18
Alkyl dimethyl ammonium chloride), one or two the combination in hydroxypropyl support double (oleamide propyl-dimethyl quaternary amine).
According to fracturing fluid base fluid of the present invention, it is preferable that the organic solvent is included in ethylene glycol, ethanol, methanol
The combination of one or more.
According to fracturing fluid base fluid of the present invention, it is preferable that the cross-linking regulator includes hydrochloric acid, lactic acid, acetic acid, Portugal
The combination of one or more in grape sodium saccharate, xylitol.
On the other hand, present invention also offers the preparation method of above-mentioned fracturing fluid base fluid, it is comprised the following steps：
1), under stirring condition, the thickening agent is proportionally added into in water, is stirred, obtain water solution A；
2), foaming agent, cross-linking regulator are proportionally added into in the water solution A, are stirred, obtain the fracturing fluid
Base fluid.
According to the preparation method of fracturing fluid base fluid of the present invention, it is preferable that step 1) described in mixing time be
1min-10min。
According to the preparation method of fracturing fluid base fluid of the present invention, it is preferable that step 2) described in mixing time be 2-
10min.In wherein, it is considered to onsite application, step 2) preferably according to foaming agent, cross-linking regulator order successively to the water
Foaming agent, cross-linking regulator are proportionally added in solution A.
Another aspect, present invention also offers a kind of CO2Foamed cleaning association fracturing fluid, it includes：Described fracturing fluid
Base fluid, cross-linking agent, gel breaker and liquid CO2, wherein, the cross-linking agent, gel breaker account for respectively fracturing fluid base fluid by mass fraction
0.3-0.8%, 0-0.05%；Liquid CO2Account for the CO2The 30-70% of foamed cleaning association fracturing fluid cumulative volume.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that the gel breaker accounts for pressure by mass fraction
Split the 0.001-0.05% of liquid-based liquid.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that the cross-linking agent is inorganic metal salt friendship
Connection agent or organic zirconium crosslinker.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that the inorganic metal salt cross-linking agent is three
Aluminum chloride.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that with the gross weight of the organic zirconium crosslinker
Measure as 100% meter, water of the organic zirconium crosslinker including the zirconates, the organic ligand of 25-57% and surplus of 6-12%.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that the zirconates is zirconium oxychloride or carbonic acid
Zirconium.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that the organic ligand includes glucose
The combination of one or more in sour sodium, sodium acetate, lactic acid, acetic acid, triethanolamine, ethylene glycol.
According to CO of the present invention2Foamed cleaning association fracturing fluid, it is preferable that the gel breaker is Ammonium persulfate. or mistake
Sodium sulfate.
The claimed CO of the application2Foamed cleaning association fracturing fluid is an extremely complex entirety, wherein constituting
It is exist to interact between each component of the fracturing fluid, the change of one or several components, or in the component for being constituted not
Only changing the content of a component in the case of change will occur basic change.
Another further aspect, present invention also offers above-mentioned CO2The preparation method of foamed cleaning association fracturing fluid, it includes following
Step：
Liquid CO is passed through in proportion in the fracturing fluid base fluid2, then the cross-linking agent is proportionally added into, obtain the CO2
Foamed cleaning association fracturing fluid.
According to CO of the present invention2The preparation method of foamed cleaning association fracturing fluid, it is preferable that as the CO2Foamed cleaning
When association fracturing fluid contains gel breaker, its preparation method is comprised the following steps：
Liquid CO is passed through in proportion in the fracturing fluid base fluid2, then the gel breaker and crosslinking are sequentially added in proportion
Agent, obtains the CO2Foamed cleaning association fracturing fluid.
Additionally, present invention also offers above-mentioned CO2Application of the foamed cleaning association fracturing fluid in oil-gas Layer pressure break.
According to application of the present invention, it is preferable that the temperature of the oil-gas Layer is less than 160 DEG C.
According to application of the present invention, it is preferable that the temperature of the oil-gas Layer is 50-150 DEG C.
The invention provides a kind of high temperature resistant CO2Foamed cleaning association fracturing fluid and preparation method and application, the pressure break
Liquid includes the main constituents such as thickening agent, cross-linking agent, foaming agent, cross-linking regulator, and the fracturing fluid of formation has additive kind
Class is few, preparation is simple, crosslinking is controllable, low residue, Low Damage, low frictional resistance, efficiency high of bubbling, the row of returning lead high, resistant to elevated temperatures feature.
Specific performance is summarized as follows：
(1) thickening agent water-soluble speed is fast, prepares convenient, and base fluid viscosity is low, with good delay crosslinked action and preferably
Drag-reduction effect；
(2) other additive compatibilities of foaming agent and fracturing fluid are good, and foamability is strong, and the half-life is high, form crosslinked gel
Foam solution has good temperature and shearing sustainability；
(3) cross-linking agent and cross-linking regulator can control fracturing fluid crosslinking time between 10s-3min, heatproof 150
DEG C, 170s-1After shearing 2h, viscosity is maintained at more than 80mPas；
(4) fracturing fluid can thoroughly break glue in 4h, and after breaking gel viscosity is less than 3mPas, and fracturing fluid residue is less than 10mg/
L；
(5) high temperature resistant CO provided by the present invention2It is hypotonic or fine and close that foamed cleaning association fracturing fluid is applied to hypotonic spy
50-150 DEG C of little unconventionaloil pool of low pressure sensitive, elastic energy is hidden, and improves reservoir and returns row's energy, accelerates fracturing fluid and returns
Row, reduces injury of the fracturing fluid to reservoir, improves well yield；In Soviet Union's Sulige gas field well, offer of the present invention is applied
High temperature resistant CO2Foamed cleaning association fracturing fluid, construction smoothly adds sand 50m3, and good effect of increasing production and stable yields effect is obtained,
Reach 2.2 times of Sulige area straight well average production per well.
Description of the drawings
Fig. 1 is high temperature resistant CO that the embodiment of the present invention 4 is prepared2The heatproof endurance of cutting of foamed cleaning association fracturing fluid
Can curve chart；
Fig. 2 is high temperature resistant CO that the embodiment of the present invention 5 is prepared2The heatproof endurance of cutting of foamed cleaning association fracturing fluid
Can curve chart；
Fig. 3 is high temperature resistant CO that the embodiment of the present invention 6 is prepared2The heatproof endurance of cutting of foamed cleaning association fracturing fluid
Can curve chart.
Specific embodiment
In order to be more clearly understood to the technical characteristic of the present invention, purpose and beneficial effect, in conjunction with detail below
Embodiment and Figure of description technical scheme is carried out it is described further below, but it is not intended that to the present invention can
The restriction of practical range.
Embodiment 1
The present embodiment provides a kind of fracturing fluid base fluid A, is counted with the gross weight of the fracturing fluid base fluid as 100%, and it includes：
0.25% thickening agent；
0.5% foaming agent；
0.2% cross-linking regulator；
And the water of surplus；
Wherein, the mass percent of each monomer component of the thickening agent：Acrylamide monomer 15%, N- vinylpyrrolidones
4%th, polydiallyldimethyl ammonium chloride be 3%, acrylic acid be 7%, Ammonium persulfate. be 0.05%, sodium acetate 0.04%, remaining is
Water.
The preparation method of the thickening agent is comprised the following steps：
Synthesized using the reaction condition of ternary polymerization, lead to nitrogen deoxygenation, reaction temperature is 55 DEG C, and the response time is 4h.Instead
After should terminating, by polymerizate drying, pelletize, required mesh number is ground into, makes fracturing fluid gelatinizer.
Calculated with the gross mass of the fracturing fluid base fluid A as 100%, when the thickening agent mass concentration is 0.4%, viscosity is
21mPa·s。
Foaming agent be alkylphenol polyoxyethylene 25wt%, double (octadecyldimethyl ammonium chloride) 15wt% of trimethylene base,
The compound system of methanol 60wt%.
Cross-linking regulator is acetic acid.
Embodiment 2
The present embodiment provides a kind of fracturing fluid base fluid B, is counted with the gross weight of the fracturing fluid base fluid as 100%, and it includes：
0.4% thickening agent；
0.5% foaming agent；
0.3% cross-linking regulator；
And the water of surplus；
Wherein, the mass percent of each monomer component of the thickening agent：Acrylamide monomer 17%, N- vinylpyrrolidones
3%th, alkyl methacrylate be 5%, sodium p styrene sulfonate be 6%, Ammonium persulfate. be 0.08%, sodium acetate 0.04%,
Remaining is water.
The preparation method of the thickening agent is comprised the following steps：
Synthesized using the reaction condition of ternary polymerization, lead to nitrogen deoxygenation, reaction temperature is 55 DEG C, and the response time is 4h.Instead
After should terminating, by polymerizate drying, pelletize, required mesh number is ground into, makes fracturing fluid gelatinizer.The thickener concentration is
When 0.4%, viscosity is 27mPas.
Foaming agent is octyl phenol polyoxyethylene ether 28wt%, trimethylene base pair (octadecyldimethyl ammonium chloride)
The compound system of 12wt%, methanol 60wt%.
Cross-linking regulator is acetic acid.
Embodiment 3
The present embodiment provides a kind of fracturing fluid base fluid C, is counted with the gross weight of the fracturing fluid base fluid as 100%, and it includes：
0.6% thickening agent；
0.5% foaming agent；
0.5% cross-linking regulator；
And the water of surplus；
Wherein, the mass percent of each monomer component of thickening agent：Acrylamide monomer 21%, N-three (methylol) methyl-
Acrylamide 5%, polydiallyldimethyl ammonium chloride are 5%, 2- acrylamido -2- methyl isophthalic acids-propane sulfonic acid is 7%, thio
Potassium sulfate is 0.06%, sodium acetate 0.03%, and remaining is water.
The preparation method of the thickening agent is comprised the following steps：
Synthesized using the reaction condition of ternary polymerization, lead to nitrogen deoxygenation, reaction temperature is 60 DEG C, and the response time is 4h.Instead
After should terminating, by polymerizate drying, pelletize, required mesh number is ground into, makes fracturing fluid gelatinizer.
Calculated with the gross mass of the fracturing fluid base fluid C as 100%, when the thickening agent mass concentration is 0.4%, viscosity is
36mPa·s。
Foaming agent is NPE 31wt%, hydroxypropyl support pair (oleamide propyl-dimethyl quaternary amine)
The compound system of 12wt%, ethylene glycol 57wt%.
Cross-linking regulator is hydrochloric acid.
Embodiment 4
Present embodiments provide a kind of high temperature resistant CO2Foamed cleaning association fracturing fluid I, it includes that embodiment 1 is prepared
Fracturing fluid base fluid A, cross-linking agent, gel breaker and liquid CO2；
Wherein, the cross-linking agent, gel breaker are accounted for respectively 0.5%, the 0.03% of fracturing fluid base fluid A by mass fraction；It is described
Liquid CO2Account for the CO2The 55% of foamed cleaning association fracturing fluid cumulative volume；
The cross-linking agent is organic zirconium crosslinker, and the mass percent of each component is：Zirconium oxychloride 6%, sodium acetate 30%,
The water of lactic acid 5% and surplus；
The gel breaker is Ammonium persulfate..
High temperature resistant CO that the present embodiment is prepared2Foamed cleaning association fracturing fluid I carries out fracturing fluid property evaluation (should
The routine evaluations method that evaluation methodology is used for this area), master data is shown in Table 1, and heatproof resistant to shearing curve is shown in Fig. 1 institutes
Show.
Embodiment 5
Present embodiments provide a kind of high temperature resistant CO2Foamed cleaning association fracturing fluid II, it includes that embodiment 2 is prepared
Fracturing fluid base fluid B, cross-linking agent, gel breaker and liquid CO2；
Wherein, the cross-linking agent, gel breaker are accounted for respectively 0.6%, the 0.02% of fracturing fluid base fluid B by mass fraction；It is described
Liquid CO2Account for the CO2The 58% of foamed cleaning association fracturing fluid cumulative volume；
The cross-linking agent is organic zirconium crosslinker, and the mass percent of each component is：Zirconium oxychloride 8%, sodium acetate 25%,
The water of lactic acid 10% and surplus；
The gel breaker is Ammonium persulfate..
High temperature resistant CO that the present embodiment is prepared2Foamed cleaning association fracturing fluid II carries out fracturing fluid property evaluation
(the routine evaluations method that the evaluation methodology is used for this area), master data is shown in Table 1, and heatproof resistant to shearing curve is shown in Fig. 2
It is shown.
Embodiment 6
Present embodiments provide a kind of high temperature resistant CO2Foamed cleaning association fracturing fluid III, it includes that embodiment 3 is prepared
Fracturing fluid base fluid C, cross-linking agent, gel breaker and liquid CO2；
Wherein, the cross-linking agent, gel breaker are accounted for respectively 0.8%, the 0.02% of fracturing fluid base fluid C by mass fraction；It is described
Liquid CO2Account for the CO2The 60% of foamed cleaning association fracturing fluid cumulative volume；
The cross-linking agent is organic zirconium crosslinker, and the mass percent of each component is：Zirconium oxychloride 10%, triethanolamine
30%th, the water of lactic acid 15% and surplus；
The gel breaker is Ammonium persulfate..
High temperature resistant CO that the present embodiment is prepared2Foamed cleaning association fracturing fluid III carries out fracturing fluid property evaluation
(the routine evaluations method that the evaluation methodology is used for this area), master data is shown in Table 1, and heatproof resistant to shearing curve is shown in Fig. 3
It is shown, wherein, base fluid viscosity, crosslinking time, Applicable temperature, level of residue, surface tension and interfacial tension are adopted described in table 1
Obtained or be calculated with this area conventional method measurement.
The fracturing fluid key property of table 1 is evaluated
From table 1 it follows that first, under room temperature, the viscosity of fracturing fluid base fluid provided by the present invention is relatively low, and it is matched somebody with somebody
System is convenient, beneficial to pumping during pressing crack construction；
Secondly, high temperature resistant CO provided by the present invention2Foamed cleaning association fracturing fluid crosslinking time is controllable, for not equality of temperature
The reservoir of degree, selects not commensurability cross-linking regulator, controls crosslinking time, reduces construction pumping pressure；
Again, CO provided by the present invention2Foamed cleaning association fracturing fluid really can be with high temperature resistant, and its heatproof is up to 150
℃；
Additionally, high temperature resistant CO provided by the present invention2Foamed cleaning association fracturing fluid residue amount is low, can suitably reduce to storage
The injury of layer；
Finally, foaming agent used is in addition to foaming function well, additionally it is possible to effectively reduce the surface of fracturing fluid
Power and interfacial tension, can further improve fracturing fluid recovery (backflow) rate.
Meanwhile, from Fig. 1-3, high temperature resistant CO provided by the present invention2Foamed cleaning association fracturing fluid is suitable in formula
Under temperature conditionss, through 170s-1, after the shearing of 1-2h, its viscosity remains at more than 80mPas, can meet industry standard
The viscosity value (more than 50mPas) of requirement, this shows high temperature resistant CO provided by the present invention2Foamed cleaning association fracturing fluid
With good heatproof, endurance of cutting energy.
Embodiment 7
High temperature resistant CO prepared using embodiment 52Foamed cleaning association fracturing fluid II, in Soviet Union, Sulige gas field carries out three
The pressing crack construction of mouth well, average every mouthful of well sand feeding amount is in 40m3More than, average sand ratio be 24.8%, foam quality 60% with
On.Fracturing fluid recovery (backflow) speed is fast, and 15 hours liquid returns row and leads and reaches 50%.It is averagely single that average product reaches Sulige area straight well
2.2 times of well production.
Claims (10)
1. a kind of fracturing fluid base fluid, it is characterised in that counted with the gross weight of the fracturing fluid base fluid as 100%, it includes：
Thickening agent 0.25-0.6%；
Foaming agent 0.3-0.6%；
Cross-linking regulator 0.1-0.5%；
Balance of water.
2. fracturing fluid base fluid according to claim 1, it is characterised in that counted with the gross weight of the thickening agent as 100%,
The thickening agent includes：
Preferably, the non-ionic monomer includes N- vinylpyrrolidones, N,N-DMAA, N- tri- (methylol) first
One kind in base-acrylamide；
It is further preferred that the cationic monomer include MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, alkyl methacrylate,
The combination of one or more in polydiallyldimethyl ammonium chloride, MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride；
It is further preferred that the anionic monomer includes acrylic acid, sodium p styrene sulfonate, 2- acrylamido -2- methyl isophthalic acids-the third
The combination of one or more in alkyl sulfonic acid；
It is further preferred that the initiator includes the combination of one or more in Ammonium persulfate., potassium peroxydisulfate, Potassium hyposulfite.；
It is further preferred that the chain-transferring agent includes the combination of one or more in sodium acetate, mercaptan, nitrilo.
3. fracturing fluid base fluid according to claim 1, it is characterised in that counted with the gross weight of the foaming agent as 100%,
The foaming agent is 20-40% nonionic surfactants, 10-30% Gemini surface active agents and 30-60% organic solvents composition
Compound system；
Preferably, the nonionic surfactant includes alkylphenol polyoxyethylene, octyl phenol polyoxyethylene ether, nonyl phenol
The combination of one or more in polyoxyethylene ether, pungent certain herbaceous plants with big flowers base glucoside；
It is further preferred that the Gemini surface active agent includes trimethylene base double (octadecyldimethyl ammonium chloride), the double (oil of hydroxypropyl support
Sour amido propyl dimethyl quaternary amine) in one or two combination；
It is further preferred that the organic solvent includes the combination of one or more in ethylene glycol, ethanol, methanol.
4. fracturing fluid base fluid according to claim 1, it is characterised in that the cross-linking regulator includes hydrochloric acid, lactic acid, vinegar
The combination of one or more in acid, sodium gluconate, xylitol.
5. the preparation method of the fracturing fluid base fluid described in any one of claim 1-4, it is comprised the following steps：
1), under stirring condition, the thickening agent is proportionally added into in water, is stirred, obtain water solution A；
Preferred steps 1) described in mixing time be 1min-10min；
2), foaming agent, cross-linking regulator are proportionally added into in the water solution A, are stirred, obtain the pressure break liquid-based
Liquid；
Preferred steps 2) described in mixing time be 2-10min.
6. a kind of CO2Foamed cleaning association fracturing fluid, it includes：Fracturing fluid base fluid, crosslinking described in any one of claim 1-4
Agent, gel breaker and liquid CO2, wherein, the cross-linking agent, gel breaker are accounted for respectively the 0.3- of fracturing fluid base fluid by mass fraction
0.8%th, 0-0.05%；Liquid CO2Account for the CO2The 30-70% of foamed cleaning association fracturing fluid cumulative volume；
Preferably, the gel breaker is accounted for the 0.001-0.05% of fracturing fluid base fluid by mass fraction.
7. CO according to claim 62Foamed cleaning association fracturing fluid, it is characterised in that the cross-linking agent is inorganic metal
Salt cross-linking agent or organic zirconium crosslinker；
Preferably, the inorganic metal salt cross-linking agent is aluminum chloride；
It is further preferred that being counted with the gross weight of the organic zirconium crosslinker as 100%, the organic zirconium crosslinker includes the zirconium of 6-12%
The water of salt, the organic ligand of 25-57% and surplus；
It is highly preferred that the zirconates is zirconium oxychloride or zirconium carbonate；
It is more preferred still that the organic ligand includes sodium gluconate, sodium acetate, lactic acid, acetic acid, triethanolamine, ethylene glycol
In the combination of one or more.
8. CO according to claim 62Foamed cleaning association fracturing fluid, it is characterised in that the gel breaker is Ammonium persulfate.
Or sodium peroxydisulfate.
9. the CO described in any one of claim 6-82The preparation method of foamed cleaning association fracturing fluid, it is comprised the following steps：
Liquid CO is passed through in proportion in the fracturing fluid base fluid2, then the cross-linking agent is proportionally added into, obtain the CO2Foam
Cleaning association fracturing fluid；
Preferably, as the CO2When foamed cleaning association fracturing fluid contains gel breaker, its preparation method is comprised the following steps：
Liquid CO is passed through in proportion in the fracturing fluid base fluid2, then the gel breaker and cross-linking agent are sequentially added in proportion, obtain
To the CO2Foamed cleaning association fracturing fluid.
10. the CO described in any one of claim 6-82Application of the foamed cleaning association fracturing fluid in oil-gas Layer pressure break；
Preferably, the temperature of the oil-gas Layer is less than 160 DEG C, more preferably 50-150 DEG C.
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| CN108071378A (en) * | 2017-12-28 | 2018-05-25 | 东方宝麟科技发展(北京)有限公司 | A kind of CO for being suitable for fine and close oil-gas reservoir2Foam fracturing method |
| CN108424759A (en) * | 2018-04-17 | 2018-08-21 | 四川申和新材料科技有限公司 | A kind of novel carbon dioxide foaming fracturing fluid and preparation method thereof for resisting 110 DEG C of high temperature |
| CN111718442B (en) * | 2019-03-22 | 2022-07-12 | 中国石油化工股份有限公司 | Temperature-sensitive polymer, foam fracturing fluid, and preparation method and application thereof |
| CN111718442A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Temperature-sensitive polymer, foam fracturing fluid, and preparation method and application thereof |
| CN111234799A (en) * | 2020-03-06 | 2020-06-05 | 中国石油天然气股份有限公司 | Carbon dioxide foam fracturing fluid with high sand carrying performance and preparation method thereof |
| CN114479820A (en) * | 2022-02-10 | 2022-05-13 | 四川申和新材料科技有限公司 | Self-heating composite foam fracturing fluid capable of being controlled in real time and field construction method |
| CN114479820B (en) * | 2022-02-10 | 2023-09-01 | 四川申和新材料科技有限公司 | Self-heating composite foam fracturing fluid capable of being controlled in real time and field construction method |
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| CN115450601B (en) * | 2022-10-09 | 2023-12-22 | 中国石油大学(北京) | Foam fracturing repair method for radial well of low-permeability polluted soil |
| CN115746820A (en) * | 2022-11-04 | 2023-03-07 | 泰坦(天津)能源技术有限公司 | High-temperature-resistant carbon dioxide foam fracturing fluid and preparation method and application thereof |
| CN115746820B (en) * | 2022-11-04 | 2024-02-02 | 泰坦(天津)能源技术有限公司 | High-temperature-resistant carbon dioxide foam fracturing fluid and preparation method and application thereof |
| CN117025194A (en) * | 2023-07-06 | 2023-11-10 | 四川川庆井下科技有限公司 | Emulsion cross-linking agent, emulsion regulator and online mixed fracturing fluid |
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