CN108102634A - A kind of tight sandstone reservoir slippery water fracturing fluid and its application - Google Patents
A kind of tight sandstone reservoir slippery water fracturing fluid and its application Download PDFInfo
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- CN108102634A CN108102634A CN201711178827.1A CN201711178827A CN108102634A CN 108102634 A CN108102634 A CN 108102634A CN 201711178827 A CN201711178827 A CN 201711178827A CN 108102634 A CN108102634 A CN 108102634A
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- Prior art keywords
- fracturing fluid
- sandstone reservoir
- tight sandstone
- slippery water
- water fracturing
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- 239000012530 fluid Substances 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 239000002562 thickening agent Substances 0.000 claims abstract description 41
- 239000004927 clay Substances 0.000 claims abstract description 27
- 239000008139 complexing agent Substances 0.000 claims abstract description 25
- 239000000654 additive Substances 0.000 claims abstract description 24
- 239000003381 stabilizer Substances 0.000 claims abstract description 22
- 238000010276 construction Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 26
- 229920000289 Polyquaternium Polymers 0.000 claims description 23
- -1 amine Salt Chemical class 0.000 claims description 21
- 125000002091 cationic group Chemical group 0.000 claims description 16
- 230000000996 additive effect Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 229920001897 terpolymer Polymers 0.000 claims description 13
- 150000001768 cations Chemical class 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 8
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims description 8
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000012703 microemulsion polymerization Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- PRPAGESBURMWTI-UHFFFAOYSA-N [C].[F] Chemical group [C].[F] PRPAGESBURMWTI-UHFFFAOYSA-N 0.000 claims description 6
- 150000001412 amines Chemical group 0.000 claims description 6
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 6
- 239000011790 ferrous sulphate Substances 0.000 claims description 6
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 6
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 6
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims description 5
- HVWGGPRWKSHASF-UHFFFAOYSA-N Sulfuric acid, monooctadecyl ester Chemical compound CCCCCCCCCCCCCCCCCCOS(O)(=O)=O HVWGGPRWKSHASF-UHFFFAOYSA-N 0.000 claims description 5
- 229940080284 cetyl sulfate Drugs 0.000 claims description 5
- LPTIRUACFKQDHZ-UHFFFAOYSA-N hexadecyl sulfate;hydron Chemical compound CCCCCCCCCCCCCCCCOS(O)(=O)=O LPTIRUACFKQDHZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 4
- 239000003093 cationic surfactant Substances 0.000 claims description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 claims description 3
- SSILHZFTFWOUJR-UHFFFAOYSA-M hexadecane-1-sulfonate Chemical compound CCCCCCCCCCCCCCCCS([O-])(=O)=O SSILHZFTFWOUJR-UHFFFAOYSA-M 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 150000003384 small molecules Chemical class 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 2
- RZJRJXONCZWCBN-UHFFFAOYSA-N octadecane Chemical compound CCCCCCCCCCCCCCCCCC RZJRJXONCZWCBN-UHFFFAOYSA-N 0.000 claims 2
- LDMOEFOXLIZJOW-UHFFFAOYSA-N 1-dodecanesulfonic acid Chemical compound CCCCCCCCCCCCS(O)(=O)=O LDMOEFOXLIZJOW-UHFFFAOYSA-N 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 150000001336 alkenes Chemical class 0.000 claims 1
- 150000008051 alkyl sulfates Chemical class 0.000 claims 1
- 235000019270 ammonium chloride Nutrition 0.000 claims 1
- 229940038384 octadecane Drugs 0.000 claims 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 238000004064 recycling Methods 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 6
- 241000894006 Bacteria Species 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000001914 filtration Methods 0.000 abstract description 3
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 14
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 8
- 239000003292 glue Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 7
- 230000006378 damage Effects 0.000 description 6
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- MOTZDAYCYVMXPC-UHFFFAOYSA-N dodecyl hydrogen sulfate Chemical group CCCCCCCCCCCCOS(O)(=O)=O MOTZDAYCYVMXPC-UHFFFAOYSA-N 0.000 description 5
- 229940043264 dodecyl sulfate Drugs 0.000 description 5
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 4
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 4
- CACRRXGTWZXOAU-UHFFFAOYSA-N octadecane-1-sulfonic acid Chemical class CCCCCCCCCCCCCCCCCCS(O)(=O)=O CACRRXGTWZXOAU-UHFFFAOYSA-N 0.000 description 4
- JIGUICYYOYEXFS-UHFFFAOYSA-N 3-tert-butylbenzene-1,2-diol Chemical compound CC(C)(C)C1=CC=CC(O)=C1O JIGUICYYOYEXFS-UHFFFAOYSA-N 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- BJEMXPVDXFSROA-UHFFFAOYSA-N 3-butylbenzene-1,2-diol Chemical group CCCCC1=CC=CC(O)=C1O BJEMXPVDXFSROA-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 125000000913 palmityl 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])([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 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 2
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920006322 acrylamide copolymer Polymers 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 210000000867 larynx Anatomy 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000008719 thickening Effects 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
-
- 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
- C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
-
- 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
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Detergent Compositions (AREA)
Abstract
The present invention provides a kind of tight sandstone reservoir slippery water fracturing fluids and its application, including following component, by weight percentage, 0.15% 0.35% thickeners, 0.03% 0.05% clay stabilizers, 0.03% 0.05% cleanup additives, 0.20% 0.50% complexing agents, 0.02% 0.05% gel breakers, surplus is water, the invention can be swollen rapidly, can realize continuous mixture；Bacteria effect is not susceptible to, is not easy corruption；Construction friction is low, it can be achieved that huge discharge is continuously constructed；It can realize that whole process takes sand by adjusting thickener concentration；Returning drain recycling only needs to do that simple filtration processing is i.e. reusable, and simple for process, utilization rate is high；Cost is relatively low, and economic benefit is good.
Description
Technical field
The present invention relates to low permeability oil and gas field fields, and in particular to a kind of tight sandstone reservoir with slippery water fracturing fluid and its
Using.
Background technology
Pressure break as oil-gas reservoir Main Yield-increasing, well stimulation has been rapidly developed and extensive use.Pressure break is exactly profit
Stratum is pressed off to form crack with pressure, and is supported it with proppant, to reduce the volume increase of fluid flow resistance, augmented injection
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, made it that can be known as the fluid of low viscosity after pressure break easy
The row of returning damages to avoid to the oil-gas Layer in stratum.
Domestic and international most common fracturing fluid is mainly the aqueous fracturing fluid using guanidine glue and its modifier as 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 except with Low Damage, low frictional resistance, low cost,
Outside 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 require to reduce industrial water quantity.And guanidine glue and its modifier are easily corrupt with natural plant gum
Inadequate natural endowment shortcoming, and fracturing fluid system complicated component, it is difficult to return drain processing by chemical crosslinking the formation of 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.
The 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 easily formed and blocked
Injury causes matrix permeability and fracture condudtiviy to decline, so as 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, causes more water horse power loss and higher construction risk.
Synthesized polymer species thickener mainly includes polyacrylamide, Sodium Polyacrylate, polyacrylate and polyvinyl alcohol etc., generally has
There is the features such as strong, the broken colloidality of thickening capabilities can be good, residue is few, be widely used, but cost is generally higher, scene is not utilized to push away
Wide application.But due to the development of current volume fracturing, huge discharge, big liquid measure, low sand than process requirements fracturing fluid is proposed
New technology requirement it is necessary to have low viscosity, low frictional resistance, low cost, easily the row of returning, easily recycle the features such as.Therefore, it is necessary to be formed
A kind of new slippery water fracturing fluid system, to meet the needs of current fine and close oil-gas reservoir sandstone reservoir transformation.
The content of the invention
The object of the present invention is to provide a kind of tight sandstone reservoir slippery water fracturing fluid, it disclosure satisfy that low viscosity, low rub
Resistance, easily low cost, the row of returning, the fracturing fluid system of easy the features such as recycling, can meet the new hair of tight sandstone reservoir volume fracturing
Exhibition demand simultaneously also alleviates live environmental protection pressure.
The technical scheme is that provide a kind of tight sandstone reservoir slippery water fracturing fluid, including following component,
By weight percentage, 0.15%-0.35% thickeners, 0.03%-0.05% clay stabilizers, 0.03%-0.05% cleanup additives,
0.20%-0.50% complexing agents, 0.02%-0.05% gel breakers, surplus are water.
Preparing for the thickener is as follows：According to the amount of substance than meter, 2-5：3-4：Hydroxymethyl acrylamide, the first of 1-3
Base acrylic acid and alkylphenol polyoxyethylene ether acrylate generation terpolymer, then with terpolymer use and tert-butyl o
Benzenediol or Pyrogentisinic Acid's monobutyl ether are 2-3 according to mass ratio：The ratio of 1-2 is molten by reverse microemulsion polymerization methods formation small molecule
Liquid.
The molecular weight of the thickener is below 300,000.
The clay stabilizer is to compare 1.1-1.8 according to the amount of substance by epoxychloropropane and cationic polyquaternium：1
The polyquaternium of ratio reaction synthesis.
The cation polyquaternium is 2-10 ten thousand, cationic degree 10%-20% with respect to one's share of expenses for a joint undertaking quality.
The cleanup additive is pressed for fluorine carbon surfactant, cationic surfactant and polyoxyethylene alkylphenol ether
According to mass ratio 2-3：1-2：1 ratio compounds.
The fluorine carbon surfactant be perfluoroalkyl quaternary amine iodide or perfluoroalkyl betain, the cation form
Face activating agent is one or both of dodecyl trimethyl ammonium chloride, cetyl trimethylammonium bromide.
The complexing agent is lauryl sulfate, cetyl sulfate, octadecyl sulfate, dodecyl sodium sulfonate
One or both of salt, cetyl sulfonate, octadecyl sulfonic acid salt.
The gel breaker is for ammonium persulfate with ferrous sulfate or iron sulfide according to mass ratio 3-7：2-3 ratio mixing and
Into.
A kind of application of tight sandstone reservoir slippery water fracturing fluid, it is characterised in that：
Step 1）Prepare following component, by weight percentage, 0.15%-0.35% thickeners, 0.03%-0.05% clay stabilizations
Agent, 0.03%-0.05% cleanup additives, 0.20%-0.50% complexing agents, 0.02%-0.05% gel breakers, surplus are water；
Step 2）The stirring of 0.15%-0.35% thickeners is added in water, then sequentially adds 0.03%-0.05% clay stabilizers,
0.03%-0.05% cleanup additives stir, and form base fluid；
Step 3）During pressing crack construction, in step 2）Base fluid in add in 0.20%-0.50% complexing agents and form high viscosity liquid to take
Band proppant, construction latter stage are hot on the trail of 0.02%-0.05% gel breakers.
Beneficial effects of the present invention：
This tight sandstone reservoir provided by the invention can be swollen rapidly with slippery water fracturing fluid, can realize continuous mixture；
Bacteria effect is not susceptible to, is not easy corruption；Construction friction is low, it can be achieved that huge discharge is continuously constructed；It can be by adjusting thickener
Concentration realizes that whole process takes sand；Returning drain recycling only needs to do i.e. reusable, simple for process, the utilization rate of simple filtration processing
It is high；Cost is relatively low, and economic benefit is good.
The present invention is described in further details below with reference to specific embodiment.
Specific embodiment
Embodiment 1：
A kind of tight sandstone reservoir slippery water fracturing fluid is present embodiments provided, including following component, by weight percentage,
0.15%-0.35% thickeners, 0.03%-0.05% clay stabilizers, 0.03%-0.05% cleanup additives, 0.20%-0.50% complexing agents,
0.02%-0.05% gel breakers, surplus are water.
Preparing for the thickener is as follows：According to the amount of substance than meter, 2-5：3-4：Hydroxymethyl acrylamide, the first of 1-3
Base acrylic acid and alkylphenol polyoxyethylene ether acrylate generation terpolymer, then with terpolymer use and tert-butyl o
Benzenediol or Pyrogentisinic Acid's monobutyl ether are 2-3 according to mass ratio：The ratio of 1-2 is molten by reverse microemulsion polymerization methods formation small molecule
Liquid.
The molecular weight of the thickener is below 300,000.
The clay stabilizer is to compare 1.1-1.8 according to the amount of substance by epoxychloropropane and cationic polyquaternium：1
The polyquaternium of ratio reaction synthesis.
The cation polyquaternium is 2-10 ten thousand, cationic degree 10%-20% with respect to one's share of expenses for a joint undertaking quality.
The cleanup additive is pressed for fluorine carbon surfactant, cationic surfactant and polyoxyethylene alkylphenol ether
According to mass ratio 2-3：1-2：1 ratio compounds.
The fluorine carbon surfactant be perfluoroalkyl quaternary amine iodide or perfluoroalkyl betain, the cation form
Face activating agent is one or both of dodecyl trimethyl ammonium chloride, cetyl trimethylammonium bromide.
The complexing agent is lauryl sulfate, cetyl sulfate, octadecyl sulfate, dodecyl sodium sulfonate
One or both of salt, cetyl sulfonate, octadecyl sulfonic acid salt.
The gel breaker is for ammonium persulfate with ferrous sulfate or iron sulfide according to mass ratio 3-7：2-3 ratio mixing and
Into.
A kind of application of tight sandstone reservoir slippery water fracturing fluid, it is characterised in that：
Step 1）Prepare following component, by weight percentage, 0.15%-0.35% thickeners, 0.03%-0.05% clay stabilizations
Agent, 0.03%-0.05% cleanup additives, 0.20%-0.50% complexing agents, 0.02%-0.05% gel breakers, surplus are water；
Step 2）The stirring of 0.15%-0.35% thickeners is added in water, then sequentially adds 0.03%-0.05% clay stabilizers,
0.03%-0.05% cleanup additives stir, and form base fluid；
Step 3）During pressing crack construction, in step 2）Base fluid in add in 0.20%-0.50% complexing agents and form high viscosity liquid to take
Band proppant, construction latter stage are hot on the trail of 0.02%-0.05% gel breakers.
Thickener mainly disperses swelling in water, forms the liquid with certain viscosity, is reducing pressing crack construction frictional resistance
Meanwhile as a kind of carrier for carrying proppant；Clay stabilizer contains polycation point, can be combined with surface of clay multiple spot,
With also reservoir wettability of the surface is not changed behind reservoir surface containing hydroxyl absorption in molecular configurational, clay is effectively inhibited
Expansion, molecular particle size is small, is not easy to plug compact reservoir micropore larynx, reduces formation damage；Cleanup additive is in compact reservoir porous media
Core surface contact angle is higher, and salt resistant character is good, can effectively improve fracturing fluid recovery (backflow) ability, reduces liquid holdup, reduction pair
Formation damage.Complexing agent main function and thickener act on forming the fluid with certain network structure simultaneously, can carry one
Determine the proppant of proportion, be mainly characterized by progressively being adjusted usage amount according to proppant proportion, operation is flexible.Gel breaker
Effect be the macromolecules degradation formed when making construction, row is then returned in open flow, reduces its injury to stratum.
This tight sandstone reservoir provided by the invention can be swollen rapidly with slippery water fracturing fluid, can be realized continuous mixed
Match somebody with somebody；Bacteria effect is not susceptible to, is not easy corruption；Construction friction is low, it can be achieved that huge discharge is continuously constructed；It can be by adjusting thickening
Agent concentration realizes that whole process takes sand；Returning drain recycling, only to need to do simple filtration processing i.e. reusable, simple for process, utilizes
Rate is high；Cost is relatively low, and economic benefit is good.
Embodiment 2：
A kind of tight sandstone reservoir slippery water fracturing fluid is present embodiments provided, prepares following component：By weight percentage,
0.15% thickener, 0.03% clay stabilizer, 0.03% cleanup additive, 0.20% complexing agent, 0.02% gel breaker, surplus are water.
Wherein, the thickener prepare it is as follows：With hydroxymethyl acrylamide, methacrylic acid and alkylphenol-polyethenoxy
Ether acrylate generates terpolymer, then passes through reverse microemulsion polymerization methods with tert-butyl catechol or Pyrogentisinic Acid's monobutyl ether
Form small molecule solution；The molecular weight of the thickener is below 300,000.
The clay stabilizer is the amount ratio 1.1 with cationic polyquaternium according to substance by epoxychloropropane：1 reaction is closed
Into polyquaternium, it is described cation polyquaternium with respect to one's share of expenses for a joint undertaking quality be 2-10 ten thousand, cationic degree 10%-20%.
The cleanup additive is perfluoroalkyl quaternary amine iodide, cetyl trimethylammonium bromide and polyoxyethylene alkylphenol ether
According to mass ratio 3： 2：1 compounds.
The complexing agent is lauryl sulfate.
The gel breaker is for ammonium persulfate with ferrous sulfate according to mass ratio 5：2 mix.
0.15% thickener is added in water, is stirred 5min, is then sequentially added 0.03% clay stabilizer, 0.03% row of helping
10min is stirred in agent, forms base fluid.
During pressing crack construction, 0.20% complexing agent is added in base fluid and forms high viscosity liquid to carry proppant, is constructed latter stage
0.02% gel breaker in hot pursuit.
Embodiment 3：
A kind of tight sandstone reservoir slippery water fracturing fluid is present embodiments provided, prepares following component：By weight percentage,
0.35% thickener, 0.05% clay stabilizer, 0.05% cleanup additive, 0.50% complexing agent, 0.05% gel breaker, surplus are water.
Wherein, the thickener prepare it is as follows：With hydroxymethyl acrylamide, methacrylic acid and alkylphenol-polyethenoxy
Ether acrylate generates terpolymer, then passes through reverse microemulsion polymerization methods with tert-butyl catechol or Pyrogentisinic Acid's monobutyl ether
Form small molecule solution；The molecular weight of the thickener is below 300,000.
The clay stabilizer is the amount ratio 1.3 with cationic polyquaternium by substance by epoxychloropropane：1 reaction synthesis
Polyquaternium, it is described cation polyquaternium with respect to one's share of expenses for a joint undertaking quality be 2-10 ten thousand, cationic degree 10%-20%.
The cleanup additive is perfluoroalkyl betain, dodecyl trimethyl ammonium chloride and polyoxyethylene alkylphenol ether
According to mass ratio 3：1：1 compounds.
The complexing agent is 0.20% lauryl sulfate and 0.20% cetyl sulfate.
The gel breaker is for ammonium persulfate with iron sulfide according to mass ratio 5：2 mix.
Embodiment 4：
A kind of tight sandstone reservoir slippery water fracturing fluid is present embodiments provided, prepares following component：By weight percentage,
0.25% thickener, 0.04% clay stabilizer, 0.04% cleanup additive, 0.35% complexing agent, 0.04% gel breaker, surplus are water.
Wherein, the thickener prepare it is as follows：With hydroxymethyl acrylamide, methacrylic acid and alkylphenol-polyethenoxy
Ether acrylate generates terpolymer, then passes through reverse microemulsion polymerization methods with tert-butyl catechol or Pyrogentisinic Acid's monobutyl ether
Form small molecule solution；The molecular weight of the thickener is below 300,000.
The clay stabilizer is the amount ratio 1.4 with cationic polyquaternium according to substance by epoxychloropropane：1 reaction is closed
Into polyquaternium, it is described cation polyquaternium with respect to one's share of expenses for a joint undertaking quality be 2-10 ten thousand, cationic degree 10%-20%.
The cleanup additive for perfluoroalkyl quaternary amine iodide, dodecyl trimethyl ammonium chloride, cetyl trimethyl with
And polyoxyethylene alkylphenol ether is according to mass ratio 2：2：1 compounds.
The complexing agent is one or both of 0.12% octadecyl sulfate, 0.13% octadecyl sulfonic acid salt.
The gel breaker is for ammonium persulfate with ferrous sulfate according to mass ratio 7：3 mix.
Embodiment 5：
Certain new well of Triassic system tight sand（1#）Reservoir buried depth 2000m, 65 DEG C of formation temperature.During site operation, with liquid water
Fluid reservoir is transferred to, using cementing truck 0.5m30.30% thickening agent Xun Huan 5min is added in after Xun Huan is established under/min discharge capacities, then
0.05% cleanup additive, 0.05% clay stabilizer are sequentially added, finally using 0.8m3/ min discharge capacities cycle 10min, form base fluid.
During pressing crack construction, add in 0.3% complexing agent and form high viscosity liquid to carry proppant（Quartz sand, haydite）, construction latter stage be hot on the trail of
0.04 % gel breakers.After pressure break, next work flow is carried out after closing well 30min after open flow.
Wherein, the thickener prepare it is as follows：With hydroxymethyl acrylamide, methacrylic acid and alkylphenol-polyethenoxy
Ether acrylate is according to molar ratio 2：4：3 generation terpolymers, according still further to mass ratio 3：1 terpolymer and tertiary butyl
Catechol or Pyrogentisinic Acid's monobutyl ether form small molecule solution by reverse microemulsion polymerization methods；The molecular weight of the thickener exists
Less than 300000.
The clay stabilizer is according to molar ratio 1.5 by epoxychloropropane and cationic polyquaternium：1 reaction synthesis
Polyquaternium, the cation polyquaternium are 2-10 ten thousand, cationic degree 10%-20% with respect to one's share of expenses for a joint undertaking quality.
The cleanup additive for perfluoroalkyl quaternary amine iodide, dodecyl trimethyl ammonium chloride, cetyl trimethyl with
And polyoxyethylene alkylphenol ether is according to mass ratio 3：2：1 compounds.
The complexing agent is one or both of 0.12% octadecyl sulfate, 0.13% octadecyl sulfonic acid salt.
The gel breaker is for ammonium persulfate with ferrous sulfate according to mass ratio 4：3 mix.
Embodiment 6：
Certain new well of Triassic system tight sand（1#）Reservoir buried depth 1800m, 55 DEG C of formation temperature.During site operation, with liquid water
Fluid reservoir is transferred to, using cementing truck 0.6m30.35% thickening agent Xun Huan 5min is added in after Xun Huan is established under/min discharge capacities, then
0.03% clay stabilizer, 0.03% cleanup additive are sequentially added, finally using 1.0m3/ min discharge capacities cycle 10min, add in simultaneously
0.01% gel breaker forms base fluid.During pressing crack construction, add in 0.25% complexing agent and form high viscosity liquid to carry proppant
（Quartz sand, haydite）, construction latter stage be hot on the trail of 0.03 % gel breakers.After pressure break, next work is carried out after closing well 30min after open flow
Industry flow.
Wherein, the thickener prepare it is as follows：With hydroxymethyl acrylamide, methacrylic acid and alkylphenol-polyethenoxy
Ether acrylate is according to molar ratio 5：3：1 generation terpolymer, according still further to mass ratio 2：2 terpolymers and tertiary butyl
Catechol or Pyrogentisinic Acid's monobutyl ether form small molecule solution by reverse microemulsion polymerization methods；The molecular weight of the thickener exists
Less than 300000.
The clay stabilizer is according to molar ratio 1.2 by epoxychloropropane and cationic polyquaternium：1 reaction synthesis
Polyquaternium, the cation polyquaternium are 2-10 ten thousand, cationic degree 10%-20% with respect to one's share of expenses for a joint undertaking quality.
The cleanup additive is perfluoroalkyl betain, dodecyl trimethyl ammonium chloride and polyoxyethylene alkylphenol ether
According to mass ratio 2：1：1 compounds.
The complexing agent is 0.20% lauryl sulfate and 0.20% cetyl sulfate.
The gel breaker is for ammonium persulfate with iron sulfide according to mass ratio 3：2 mix.
The foregoing examples are only illustrative of the present invention, does not form the limitation to protection scope of the present invention, all
Be with the present invention it is the same or similar design all belong to the scope of protection of the present invention within.
Claims (9)
1. a kind of tight sandstone reservoir slippery water fracturing fluid, it is characterised in that：Including following component, by weight percentage,
0.15%-0.35% thickeners, 0.03%-0.05% clay stabilizers, 0.03%-0.05% cleanup additives, 0.20%-0.50% complexing agents,
0.02%-0.05% gel breakers, surplus are water；
Preparing for the thickener is as follows：According to the amount of substance than meter, 2-5：3-4：Hydroxymethyl acrylamide, the methyl-prop of 1-3
Olefin(e) acid and alkylphenol polyoxyethylene ether acrylate generation terpolymer, then with the terpolymer with tert-butyl o benzene two
Phenol or Pyrogentisinic Acid's monobutyl ether are 2-3 according to mass ratio：The ratio of 1-2 forms small molecule solution by reverse microemulsion polymerization methods.
2. tight sandstone reservoir as described in claim 1 slippery water fracturing fluid, it is characterised in that：The molecule of the thickener
Amount is below 300,000.
3. tight sandstone reservoir as described in claim 1 slippery water fracturing fluid, it is characterised in that：The clay stabilizer is
Compare 1.1-1.8 according to the amount of substance by epoxychloropropane and cationic polyquaternium：The polyquaternium of 1 ratio reaction synthesis.
4. tight sandstone reservoir as claimed in claim 3 slippery water fracturing fluid, it is characterised in that：The cation polyquaternary amine
Salt is 2-10 ten thousand, cationic degree 10%-20% with respect to one's share of expenses for a joint undertaking quality.
5. tight sandstone reservoir as described in claim 1 slippery water fracturing fluid, it is characterised in that：The cleanup additive is fluorine carbon
Class surfactant, cationic surfactant and polyoxyethylene alkylphenol ether are according to mass ratio 2-3：1-2：1 ratio
It compounds.
6. tight sandstone reservoir as claimed in claim 5 slippery water fracturing fluid, it is characterised in that：It lives on the fluorine carbon surface
Property agent be perfluoroalkyl quaternary amine iodide or perfluoroalkyl betain, the cationic surfactant be trimethyl
One or both of ammonium chloride, cetyl trimethylammonium bromide.
7. tight sandstone reservoir as described in claim 1 slippery water fracturing fluid, it is characterised in that：The complexing agent is 12
Alkyl sulfate, cetyl sulfate, octadecyl sulfate, dodecane sulfonate, cetyl sulfonate, octadecane
One or both of base sulfonate.
8. tight sandstone reservoir as described in claim 1 slippery water fracturing fluid, it is characterised in that：The gel breaker is over cure
Sour ammonium is with ferrous sulfate or iron sulfide according to mass ratio 3-7：The ratio of 2-3 mixes.
9. a kind of tight sandstone reservoir application of slippery water fracturing fluid, it is characterised in that：
Step 1）Prepare following component, by weight percentage, 0.15%-0.35% thickeners, 0.03%-0.05% clay stabilizations
Agent, 0.03%-0.05% cleanup additives, 0.20%-0.50% complexing agents, 0.02%-0.05% gel breakers, surplus are water；
Step 2）The stirring of 0.15%-0.35% thickeners is added in water, then sequentially adds 0.03%-0.05% clay stabilizers,
0.03%-0.05% cleanup additives stir, and form base fluid；
Step 3）During pressing crack construction, in step 2）Base fluid in add in 0.20%-0.50% complexing agents and form high viscosity liquid to take
Band proppant, construction latter stage are hot on the trail of 0.02%-0.05% gel breakers.
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Application publication date: 20180601 |