CN107828404A - A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water - Google Patents
A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water Download PDFInfo
- Publication number
- CN107828404A CN107828404A CN201711154710.XA CN201711154710A CN107828404A CN 107828404 A CN107828404 A CN 107828404A CN 201711154710 A CN201711154710 A CN 201711154710A CN 107828404 A CN107828404 A CN 107828404A
- Authority
- CN
- China
- Prior art keywords
- oil field
- agent
- somebody
- recovered water
- high salinity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/66—Compositions based on water or polar solvents
- C09K8/68—Compositions based on water or polar solvents containing organic compounds
- C09K8/685—Compositions based on water or polar solvents containing organic compounds containing cross-linking agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—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
- C09K8/665—Compositions based on water or polar solvents containing inorganic 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
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/887—Compositions based on water or polar solvents containing organic compounds macromolecular compounds containing cross-linking agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/26—Gel breakers other than bacteria or enzymes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Detergent Compositions (AREA)
Abstract
The invention belongs to oilfield stimulation technical field, and in particular to a kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water, counted using its gross weight as 100%, include 0.50% ~ 1.20% thickening agent；1.20% ~ 2.00% crosslinking agent；0.30% ~ 0.80% cleanup additive；0.30% ~ 0.50% clay stabilizer；0.005% ~ 0.08% gel breaker；0.10% ~ 0.20% salt tolerant conditioning agent；And the oil field high salinity recovered water of surplus, this kind of fracturing fluid can use the oil field high salinity recovered water directly New Fracturing Fluid with liquid, to solve the cost pressure of the environmental protection pressure in current oil field and exploitation.
Description
Technical field
The invention belongs to oilfield stimulation technical field, and in particular to a kind of pressure for matching somebody with somebody liquid for oil field high salinity recovered water
Split liquid.
Background technology
Pressure break as oil-gas reservoir Main Yield-increasing, well stimulation has been developed rapidly and extensive use.Pressure break is exactly profit
Stratum is pressed off to form crack with pressure, and 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, it is referred to as the fluid of low viscosity after pressure break easy
The row of returning, to avoid causing to damage to the oil-gas Layer in stratum.
Hydraulic fracturing technology is the key technology of low permeability reservoir transformation, and hydraulic fracturing needs to consume a large amount of fresh water, to locality
Water resource impacts, and is particularly acute in water resources shortage area, this influence.Environmental Protection in China requirement at present significantly improves,
Oil field is goed deep into exploitation, and composite water cut is gradually increasing, and substantial amounts of recovered water harmless treatment cost high efficiency is low, if
Recovered water preparing fracturing fluid can be used, it is significant for the Green Development and cost efficiency in oil field.
High salinity extraction water salinity in oil field directly matches somebody with somebody liquid more than 150000mg/L using guanidine glue and conventional polymer,
Often occur flocculating setting, putrid and deteriorated, the problems such as can not being crosslinked, it is necessary to carry out the technologies such as deionization, nanofiltration to recovered water
Advanced treating, causes with high costs, and efficiency is low, so needing to develop one kind can use oil field high salinity recovered water straight
The New Fracturing Fluid with liquid is connect, to solve the cost pressure of the environmental protection pressure in current oil field and exploitation.
The content of the invention
The oil field high salinity recovered water directly New Fracturing Fluid with liquid can be used it is an object of the invention to provide a kind of,
To solve the cost pressure of the environmental protection pressure in current oil field and exploitation.
Therefore, the invention provides it is a kind of for oil field high salinity recovered water match somebody with somebody liquid fracturing fluid, using its gross weight as
100% meter, including 0.50% ~ 1.20% salt tolerant thickening agent, 1.20% ~ 2.00% crosslinking agent, 0.30% ~ 0.80% cleanup additive,
0.30% ~ 0.50% clay stabilizer, 0.005% ~ 0.08% gel breaker, 0.10% ~ 0.20% salt tolerant conditioning agent, and surplus
Oil field high salinity recovered water；Described salt tolerant thickening agent is by hydrophily acrylmonomers methylmethacrylate 3- crotonoyls
Amine -2- ethyls propane sulfonic acid and acrylamide mix, described hydrophily acrylmonomers methylmethacrylate 3- crotonoyls
The mass ratio of amine -2- ethyls propane sulfonic acid and acrylamide is 1:1.5~2.5；The preparation method of the salt tolerant thickening agent is：First
The mixture of hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is fully molten
In Xie Yushui, wherein hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide
The mass fraction of mixture is 20%~35%, and the pH value of above-mentioned mixed solution is adjusted into 7~8, Zhi Houjia with sodium bicarbonate solution
Enter the hydrophobic monomer N- acrylic pyrroles of above-mentioned mixed liquor mass fraction 4%~5%, be subsequently added into above-mentioned mixed solution mass fraction
0.4%~0.5% emulsifier polyoxyethylene ether, agitating and heating, then 90~120min of nitrogen is passed through, 70~80 DEG C are heated to, so
0.03%~0.08% azo-initiator 5~8h of initiated polymerization of above-mentioned mixed solution mass fraction is added afterwards, continues to add
0.01%~0.03% identical azo-initiator for entering above-mentioned mixed solution mass fraction reaches greatly until mixed solution viscosity becomes
To 5 ~ 7mPas, room temperature is cooled to after continuing 4~8h of reaction, is discharged, addition absolute ethyl alcohol rinses heavy repeatedly in above-mentioned solution
Form sediment, be dried in vacuo 3~5 days, be granulated, room temperature is cooled to after continuing 4~8h of reaction, discharge, anhydrous second is added in above-mentioned solution
Alcohol rinses precipitation repeatedly, is dried in vacuo 3~5 days, is granulated.
Described azo-initiator is in azodiisobutyronitrile, ABVN, azo isobutyl cyano group formamide
One or more mix；Clay stabilizer is that the one or more in potassium chloride and ammonium chloride mix；Described is broken
Jelly is that the one or more in ammonium persulfate, potassium peroxydisulfate mix；Described salt tolerant conditioning agent is sodium citrate, lemon
One or more in sour potassium mix.
Described crosslinking agent is compounded by nonionic surfactant and anion surfactant, nonionic surfactant
Mass ratio with anion surfactant is 1 ~ 5:6 ~ 8, wherein anion surfactant is lauryl sodium sulfate, 12
One or more in sodium alkyl benzene sulfonate mix, and nonionic surfactant is OPEO, aliphatic acid
One or more in FMEE mix.
Described fracturing fluid and the mass ratio of crosslinking agent are 100:0.8~1.5.
Described cleanup additive is compounded by nonionic surfactant and anion surfactant, nonionic surfactant
Mass ratio with anion surfactant is 1:1.5~2.5；The nonionic surfactant is polyoxyethylene sorbitol acid anhydride
One or more in single monoglyceride, sorbitan monostearate, sorbitanmonolaureate mix；Described the moon
Ionic surface active agent is one or more mixing in Potassium dodecylbenzenesulfonate, dodecylphenol sodium sulfonate of ethoxylated
Form.
The salinity of described oil field high salinity recovered water is 150000 ~ 300000 mg/L, total suspended matter is 5 ~
500mg/L, total bacterial content are 10 ~ 105Individual/L, total oil content amount are 0 ~ 0.5%.
Described fracturing fluid first adds pretreating agent when with liquid in the high salinity recovered water of oil field, stirs, then adds
Cleanup additive, stir, then add clay stabilizer, stir, finally thicken the soup agent, stirs, and is swelled 2 hours, described
Pretreating agent be ion chelating agent, ion chelating agent is citric acid.
Beneficial effects of the present invention：This pressure break liquid energy for matching somebody with somebody liquid for oil field high salinity recovered water provided by the invention
Enough directly match somebody with somebody liquid using oil field high salinity recovered water, the high salinity recovered water being had more than needed for oil field provides recycling technology way
Footpath, the environmental protection pressure of oil field production is reduced, reliable guarantee is provided for oil field Green Development；The high salinity being had more than needed simultaneously with oil field
The fracturing fluid property indices that recovered water is prepared are good, disclosure satisfy that oil field compression fracture process requirements.
Brief description of the drawings
The present invention is described in further details below with reference to accompanying drawing.
Fig. 1 is high salinity oil field extracted water preparing fracturing fluid viscosity-temperature curve schematic diagram.
Embodiment
Embodiment 1：
A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water, is counted using its gross weight as 100%, including 0.50% ~ 1.20%
Salt tolerant thickening agent；1.20% ~ 2.00% crosslinking agent；0.30% ~ 0.80% cleanup additive；0.30% ~ 0.50% clay stabilizer；
0.005% ~ 0.08% gel breaker；0.10% ~ 0.20% salt tolerant conditioning agent；And the oil field high salinity recovered water of surplus.This
Kind, which is used for fracturing fluid of the oil field high salinity recovered water with liquid, directly to match somebody with somebody liquid using oil field high salinity recovered water, be oil field
High salinity recovered water more than needed provides recycling technological approaches, reduces the environmental protection pressure of oil field production, is opened for oil field green
Hair provides reliable guarantee；The fracturing fluid property indices that the high salinity recovered water being had more than needed simultaneously with oil field is prepared are good, energy
Enough meet oil field compression fracture process requirements.
Described salt tolerant thickening agent is by hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and third
Acrylamide mixes, described hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and third
The mass ratio of acrylamide is 1:1.5~2.5；The preparation method of the salt tolerant thickening agent is：It is first that hydrophily acrylmonomers are different
The mixture of M Cr 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is completely dissolved in water, wherein hydrophily
The mass fraction of the mixture of acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is
20%~35%, the pH value of above-mentioned mixed solution is adjusted to 7~8 with sodium bicarbonate solution, adds above-mentioned mixed liquor quality point afterwards
The hydrophobic monomer N- acrylic pyrroles of number 4%~5%, it is subsequently added into the emulsifying agent of above-mentioned mixed solution mass fraction 0.4%~0.5%
APEO, agitating and heating, then 90~120min of nitrogen is passed through, 70~80 DEG C are heated to, then adds above-mentioned mixed solution
0.03%~0.08% azo-initiator 5~8h of initiated polymerization of mass fraction, continuously adds above-mentioned mixed solution quality
The identical azo-initiator of the 0.01%~0.03% of fraction reaches 5 ~ 7mPas until mixed solution viscosity becomes big, continues anti-
Room temperature is cooled to after answering 4~8h, is discharged, absolute ethyl alcohol is added in above-mentioned solution and rinses precipitation repeatedly, is dried in vacuo 3~5 days,
It is granulated, room temperature is cooled to after continuing 4~8h of reaction, discharge, absolute ethyl alcohol is added in above-mentioned solution and rinses precipitation, vacuum repeatedly
Dry 3~5 days, be granulated.This synthetic method enhances synthesis thickening by the selection of each synthon and the control of synthesis condition
The anti-salt property of agent.
Further described azo-initiator is azodiisobutyronitrile, ABVN, azo isobutyl cyano group first
One or more in acid amides mix；Clay stabilizer is that the one or more in potassium chloride, ammonium chloride mix；Institute
The gel breaker stated is that the one or more in ammonium persulfate, potassium peroxydisulfate mix；Described salt tolerant conditioning agent is citric acid
One or more in sodium, potassium citrate mix.Described azo-initiator, clay stabilizer, gel breaker, persulfuric acid
Potassium salt tolerant conditioning agent includes but are not limited to specific species described above, and wherein azodiisobutyronitrile abbreviation AIBN, azo two are different
Heptonitrile abbreviation ABVN, azo isobutyl cyano group formamide abbreviation V3.
Further, described crosslinking agent is compounded by nonionic surfactant and anion surfactant, nonionic
The mass ratio of surfactant and anion surfactant is 1 ~ 5:6 ~ 8, wherein anion surfactant is dodecyl
One or more in sodium sulphate, neopelex mix, and nonionic surfactant is octyl phenol polyoxy second
One or more in alkene ether, fatty acid methyl ester ethoxylate mix, wherein lauryl sodium sulfate abbreviation SDS, ten
Dialkyl benzene sulfonic acids sodium abbreviation SDBS.
Further, the mass ratio of described fracturing fluid and crosslinking agent is 100:0.8~1.5.
Further, described cleanup additive is compounded by nonionic surfactant and anion surfactant, nonionic
The mass ratio of surfactant and anion surfactant is 1:1.5~2.5；The nonionic surfactant is polyoxy second
One or more mixing in alkene sorbitol anhydride list monoglyceride, sorbitan monostearate, sorbitanmonolaureate
Form；The anion surfactant is one in Potassium dodecylbenzenesulfonate, dodecylphenol sodium sulfonate of ethoxylated
Kind or a variety of mix.The surfactant package of such a combination can reduce surface and interface tension force by its synergy, carry
High fracturing fluid recovery (backflow) rate, reservoir damage is reduced, improve yield.
Further, the salinity of described oil field high salinity recovered water is 150000 ~ 300000 mg/L, total to suspend
Thing content is 5 ~ 500mg/L, and total bacterial content is 10 ~ 105/L, and total oil content amount is 0 ~ 0.5%.
Further, described fracturing fluid first adds pretreating agent, stirring when with liquid in the high salinity recovered water of oil field
Uniformly, then add cleanup additive, stir, then add clay stabilizer, stir, finally thicken the soup agent, stirs, swelling 2
Hour, described pretreating agent is ion chelating agent, includes but are not limited to citric acid, simple to operate.
The present invention provides recycling technological approaches for the high salinity recovered water that oil field is had more than needed, and reduces the ring of oil field production
Packing pressure, reliable guarantee is provided for oil field Green Development；The present invention is that the high salinity recovered water being had more than needed with oil field is prepared simultaneously
Fracturing fluid property indices it is good, curve reflect with the rise of temperature（Referring to Fig. 1）, the viscosity of fracturing fluid has certain drop
It is low, but disclosure satisfy that production requirement, it is shown that certain temperature resistance ability, it disclosure satisfy that oil field compression fracture process requirements.
Embodiment 2：
The new well of certain Triassic system（1#）Base fluid 150m is prepared in 53 DEG C of formation temperature, scene by formula as below3。
Base fluid formula：
Salt tolerant thickening agent 0.5%
Cleanup additive is polyoxyethylene sorbitol acid anhydride list monoglyceride and Potassium dodecylbenzenesulfonate using mass ratio as 1:1.5 mixing and
Into 0.8%
Clay stabilizer is potassium chloride 0.5%
Salt tolerant conditioning agent is sodium citrate 0.1%
Salt tolerant thickening agent used in this is by hydrophily acrylmonomers methylmethacrylate 3- crotonamide -2- ethyl propane sulfonic acid
Mixed with acrylamide, described hydrophily acrylmonomers methylmethacrylate 3- crotonamide -2- ethyl propane sulfonic acid
Mass ratio with acrylamide is 1:1.5；The preparation method of the salt tolerant thickening agent is：It is prepared by the following method：First
The mixture of hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is fully molten
In Xie Yushui, wherein hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide
The mass fraction of mixture is 20%, and the pH value of mixed solution is adjusted into 7.5 with sodium bicarbonate solution, adds mixed liquor matter afterwards
The hydrophobic monomer N- acrylic pyrroles of fraction 4% is measured, is subsequently added into the emulsifying agent polyoxy second of above-mentioned mixed solution mass fraction 0.4%
Alkene ether, agitating and heating, then nitrogen 90min is passed through, 70 DEG C are heated to, then adds the 0.03% of above-mentioned mixed solution mass fraction
Azodiisobutyronitrile initiated polymerization 5h, 0.01% azodiisobutyronitrile is continuously added until above-mentioned mixed solution viscosity reaches
5mPas, continue to be cooled to room temperature after reacting 4h, discharge, absolute ethyl alcohol is added in above-mentioned mixed solution and rinses precipitation repeatedly,
Vacuum drying 3 days, it is granulated.It is thick to enhance synthesis by the selection of each synthon and the control of synthesis condition for this synthetic method
The anti-salt property of agent.
Crosslinking agent selects lauryl sodium sulfate（SDS）：OPEO is 2:3, design of crosslinked volume ratio
100:1.1, scene prepares 4 m3。
Gel breaker is ammonium persulfate, standby amount 50kg.
Recovered water used is the multi-purpose station of operation area where the well, and it is 16324mg/L that analysis, which measures salinity, total suspended matter
Content is 23mg/L, bacterial content 102Individual/mL, water is drawn to be stored in Agitation Tank, all are suitable with liquid at scene to well site by tank car
Profit, after adding thickening agent, base fluid viscosity in 30min reaches 21mPa.s, and tends towards stability substantially, and dissolving swelling behavior is good.
Well design and construction discharge capacity 1.5 m3/ min, scene add pump by fracturing blender truck liquid and crosslinking agent are injected into mulling pond, hand over
Connection frozen glue is hung well, and construction is smooth, pressure stability, complete design sand feeding amount 15m3.Closing well 30min starts open flow after pressure, takes
It is 2.4mPa.s that sample, which measures breaking glue solution viscosity, and is decrease continuously to 1.5mPa.s, and it is thorough to break glue.The well adds up 8 classes of pumping, returns
Row leads 59.6%, and examination row produces pure oily 16.3m daily3, it is suitable with block average level, reach saving clear water and effectively using more than needed
The dual purpose of recovered water.
Embodiment 3：
Base fluid 180m is prepared in 45 DEG C of the new well member X wells formation temperature of certain Jurassic system, scene by formula as below3。
Base fluid formula：
Salt tolerant thickening agent 0.8%
Cleanup additive be polyoxyethylene sorbitol acid anhydride list monoglyceride with dodecylphenol sodium sulfonate of ethoxylated using mass ratio as
1:2.0 mix 0.3%
Clay stabilizer is sodium chloride 0.3%
Salt tolerant conditioning agent is potassium citrate 0.15%
Salt tolerant thickening agent used in this is by hydrophily acrylmonomers methylmethacrylate 3- crotonamide -2- ethyl propane sulfonic acid
Mixed with acrylamide, described hydrophily acrylmonomers methylmethacrylate 3- crotonamide -2- ethyl propane sulfonic acid
Mass ratio with acrylamide is 1:2.0；The preparation method of the salt tolerant thickening agent is：It is first that hydrophily acrylmonomers are different
The mixture of M Cr 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is completely dissolved in water, wherein hydrophily
The mass fraction of the mixture of acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is
25%, the pH value of mixed solution is adjusted to 8 with sodium bicarbonate solution, adds the hydrophobic monomer of mixed liquor mass fraction 4.5% afterwards
N- acrylic pyrroles, is subsequently added into the emulsifier polyoxyethylene ether of above-mentioned mixed solution mass fraction 0.45%, agitating and heating, then
Nitrogen 100min is passed through, is heated to 75 DEG C, 0.08% ABVN for then adding above-mentioned mixed solution mass fraction triggers
Polymerisation 6h, 0.02% ABVN is continuously added until mixed solution viscosity reaches 6mPas, continue to react 4.5h
After be cooled to room temperature, discharge, absolute ethyl alcohol added in above-mentioned solution and rinses precipitation repeatedly, is dried in vacuo 3 days, granulation.This is closed
Into method by the selection of each synthon and the control of synthesis condition, the anti-salt property for synthesizing thickening agent is enhanced.
Crosslinking agent selects lauryl sodium sulfate（SDS）：OPEO is 3:7, design of crosslinked volume ratio
100:0.9, scene prepares 6 m3。
Gel breaker is ammonium persulfate, standby amount 65kg.
Recovered water used is the multi-purpose station of operation area where the well, and it is 18732mg/L that analysis, which measures salinity, total suspended matter
Content is 31mg/L, bacterial content 103Individual/mL, water is drawn to be stored in Agitation Tank, all are suitable with liquid at scene to well site by tank car
Profit, after adding thickening agent, base fluid viscosity in 30min reaches 18mPa.s, and tends towards stability substantially, and dissolving swelling behavior is good,
Ratio of viscosities is more uniform up and down for flow container, does not find layering and obvious viscosity reduction phenomenon, has good stability.
Well design and construction discharge capacity 2.8 m3/ min, scene add pump by fracturing blender truck liquid and crosslinking agent are injected into mulling pond, hand over
Connection frozen glue is hung well, and construction is smooth, pressure stability, complete design sand feeding amount 40m3.Closing well 30min starts open flow after pressure, takes
It is 4.1mPa.s that sample, which measures breaking glue solution viscosity, and is decrease continuously to 2.1mPa.s, and it is thorough to break glue.The well adds up 15 classes of pumping,
The row of returning leads 68.4%, and examination row produces pure oily 12.6m daily3, it is suitable with block average level, reach saving clear water and effectively using rich
The dual purpose of remaining recovered water.
Embodiment 4
Base fluid 260m is prepared in 75 DEG C of the new well formation temperature of certain Triassic system, scene by formula as below3。
Base fluid formula：
Salt tolerant thickening agent 1.2%
Cleanup additive is pears alcohol acid anhydride monostearate and dodecylphenol sodium sulfonate of ethoxylated using mass ratio as 1:2.5 mixing and
Into 0.8%
Clay stabilizer is potassium chloride 0.5%
Salt tolerant conditioning agent is sodium citrate 0.2%
Salt tolerant thickening agent used in this is by hydrophily acrylmonomers methylmethacrylate 3- crotonamide -2- ethyl propane sulfonic acid
Mixed with acrylamide, described hydrophily acrylmonomers methylmethacrylate 3- crotonamide -2- ethyl propane sulfonic acid
Mass ratio with acrylamide is 1:2.5；The preparation method of the salt tolerant thickening agent is：It is prepared by the following method：First
The mixture of hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is fully molten
In Xie Yushui, wherein hydrophily acrylmonomers methylmethacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide
The mass fraction of mixture is 35%, and the pH value of mixed solution is adjusted into 7 with sodium bicarbonate solution, adds mixed liquor quality afterwards
The hydrophobic monomer N- acrylic pyrroles of fraction 5%, it is subsequently added into the emulsifier polyoxyethylene of above-mentioned mixed solution mass fraction 0.5%
Ether, agitating and heating, then nitrogen 120min is passed through, 80 DEG C are heated to, then add above-mentioned mixed solution mass fraction 0.06% is even
Nitrogen isobutyl cyano group formamide initiated polymerization 8h, continuously adds 0.03% azo isobutyl cyano group formamide until mixed solution glues
Degree reaches 7mPas, continues to be cooled to room temperature after reacting 5h, discharges, absolute ethyl alcohol is added in above-mentioned mixed solution and is rushed repeatedly
Precipitation is washed, is dried in vacuo 5 days, is granulated.This synthetic method is enhanced by the selection of each synthon and the control of synthesis condition
Synthesize the anti-salt property of thickening agent.
Crosslinking agent selects neopelex（SDBS）：OPEO is 5:8, design of crosslinked volume ratio
100:1.2, scene prepares 10m3。
Gel breaker is potassium peroxydisulfate, standby amount 35kg.
Recovered water used is the multi-purpose station of operation area where the well, and it is 20141mg/L that analysis, which measures salinity, total suspended matter
Content is 35mg/L, bacterial content 103Individual/mL, water is drawn to be stored in Agitation Tank, all are suitable with liquid at scene to well site by tank car
Profit, after adding thickening agent, base fluid viscosity in 40min reaches 18mPa.s, and tends towards stability substantially, and dissolving swelling behavior is good.
Well design and construction discharge capacity 2.0 m3/ min, scene add pump by fracturing blender truck liquid and crosslinking agent are injected into mulling pond, hand over
Connection frozen glue is hung well, and construction is smooth, pressure stability, complete design sand feeding amount 40m3.Closing well 30min starts open flow after pressure, takes
It is 3.2mPa.s that sample, which measures breaking glue solution viscosity, and is decrease continuously to 1.5mPa.s, and it is thorough to break glue.The well adds up 21 classes of pumping,
The row of returning leads 85.4%, and examination row produces pure oily 32.0m daily3, it is suitable with block average level, reach saving clear water and effectively using rich
The dual purpose of remaining recovered water.
It is exemplified as above be only to the present invention for example, do not form the limitation to protection scope of the present invention, it is all
It is to be belonged to the same or analogous design of the present invention within protection scope of the present invention.
Claims (7)
1. a kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water, is counted using its gross weight as 100%, it is characterised in that：Bag
Include 0.50% ~ 1.20% salt tolerant thickening agent, 1.20% ~ 2.00% crosslinking agent,
0.30% ~ 0.80% cleanup additive, 0.30% ~ 0.50% clay stabilizer, 0.005% ~ 0.08% gel breaker,
0.10% ~ 0.20% salt tolerant conditioning agent, and the oil field high salinity recovered water of surplus；Described salt tolerant thickening agent is by parent
Aqueous acrylamide base monomeric methyl methacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide mix, described parent
The mass ratio of aqueous acrylamide base monomeric methyl methacrylate 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is 1:1.5~
2.5；The preparation method of the salt tolerant thickening agent is：First by hydrophily acrylmonomers methylmethacrylate 3- crotonamides-
The mixture of 2- ethyls propane sulfonic acid and acrylamide is completely dissolved in water, wherein hydrophily acrylmonomers methylmethacrylate
The mass fraction of the mixture of 3- crotonamides -2- ethyls propane sulfonic acid and acrylamide is 20%~35%, uses sodium bicarbonate solution
The pH value of above-mentioned mixed solution is adjusted to 7~8, adds the hydrophobic monomer N- propylene of above-mentioned mixed liquor mass fraction 4%~5% afterwards
Base pyrroles, the emulsifier polyoxyethylene ether of above-mentioned mixed solution mass fraction 0.4%~0.5%, agitating and heating are subsequently added into, then led to
Enter 90~120min of nitrogen, be heated to 70~80 DEG C, then add above-mentioned mixed solution mass fraction 0.03%~0.08% is even
Nitrogen class initiator 5~8h of initiated polymerization, continuously add above-mentioned mixed solution mass fraction 0.01%~0.03% it is identical
Azo-initiator reaches 5 ~ 7mPas greatly until mixed solution viscosity becomes, and room temperature is cooled to after continuing 4~8h of reaction, discharges,
Absolute ethyl alcohol is added in above-mentioned solution and rinses precipitation repeatedly, is dried in vacuo 3~5 days, is granulated.
2. match somebody with somebody the fracturing fluid of liquid for oil field high salinity recovered water as claimed in claim 1, it is characterised in that：Described idol
Nitrogen class initiator be azodiisobutyronitrile, ABVN, one or more mixing in azo isobutyl cyano group formamide and
Into；Clay stabilizer is that the one or more in potassium chloride, ammonium chloride mix；Described gel breaker is ammonium persulfate, mistake
One or more in potassium sulfate mix；Described salt tolerant conditioning agent is sodium citrate, one kind in potassium citrate or more
Kind mixes.
3. match somebody with somebody the fracturing fluid of liquid for oil field high salinity recovered water as claimed in claim 2, it is characterised in that：Described friendship
Join agent to be compounded by nonionic surfactant and anion surfactant, nonionic surfactant and anion surface active
The mass ratio of agent is 1 ~ 5:6 ~ 8, wherein anion surfactant is in lauryl sodium sulfate, neopelex
One or more mix, and nonionic surfactant is in OPEO, fatty acid methyl ester ethoxylate
One or more mix.
4. match somebody with somebody the fracturing fluid of liquid for oil field high salinity recovered water as claimed in claim 3, it is characterised in that：Described pressure
The mass ratio for splitting liquid and crosslinking agent is 100:0.8~1.5.
5. match somebody with somebody the fracturing fluid of liquid for oil field high salinity recovered water as claimed in claim 4, it is characterised in that：Described helps
Arrange agent to be compounded by nonionic surfactant and anion surfactant, nonionic surfactant and anion surface active
The mass ratio of agent is 1:1.5~2.5；The nonionic surfactant is polyoxyethylene sorbitol acid anhydride list monoglyceride, sorbierite
One or more in acid anhydride monostearate, sorbitanmonolaureate mix；The anion surfactant is
One or more in Potassium dodecylbenzenesulfonate, dodecylphenol sodium sulfonate of ethoxylated mix.
6. match somebody with somebody the fracturing fluid of liquid for oil field high salinity recovered water as claimed in claim 5, it is characterised in that：Described oil
The salinity of field high salinity recovered water is 150000 ~ 300000 mg/L, and total suspended matter is 5 ~ 500mg/L, and total bacterium contains
Measure as 10 ~ 105Individual/L, total oil content amount are 0 ~ 0.5%.
7. match somebody with somebody the fracturing fluid of liquid for oil field high salinity recovered water as claimed in claim 6, it is characterised in that：Described pressure
Split liquid and first add pretreating agent in the high salinity recovered water of oil field when with liquid, stir, then add cleanup additive, stir,
Again plus clay stabilizer, stir, finally thicken the soup agent, stirs, and is swelled 2 hours, described pretreating agent is ion
Chelating agent, ion chelating agent are citric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154710.XA CN107828404A (en) | 2017-11-20 | 2017-11-20 | A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711154710.XA CN107828404A (en) | 2017-11-20 | 2017-11-20 | A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107828404A true CN107828404A (en) | 2018-03-23 |
Family
ID=61652126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711154710.XA Pending CN107828404A (en) | 2017-11-20 | 2017-11-20 | A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107828404A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135713A (en) * | 2018-09-05 | 2019-01-04 | 安徽炎胜新材料科技有限公司 | A kind of clean fracturing fluid and preparation method thereof for high salinity recovered water |
| CN109679641A (en) * | 2018-11-14 | 2019-04-26 | 中国石油集团西部钻探工程有限公司 | The fracturing fluid and preparation method thereof that high salinity salt lake saline is prepared |
| CN115584256A (en) * | 2022-12-13 | 2023-01-10 | 中石化西南石油工程有限公司 | High-temperature-resistant high-salt cleanup additive for acidizing and fracturing and preparation method thereof |
| CN118047905A (en) * | 2024-04-16 | 2024-05-17 | 中海油天津化工研究设计院有限公司 | Five-membered hydrophobically associating modified acrylamide polymer, preparation method thereof, suspension type thickening agent and fracturing fluid |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229798A (en) * | 2011-05-17 | 2011-11-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fracturing fluid prepared from simulated stratum produced water or stratum produced water |
| CN102796508A (en) * | 2011-05-25 | 2012-11-28 | 中国石油天然气股份有限公司 | Anionic surfactant crosslinked acid |
| CN102796506A (en) * | 2011-05-25 | 2012-11-28 | 中国石油天然气股份有限公司 | Ampholytic surfactant fracturing fluid |
| CN103074049A (en) * | 2013-01-21 | 2013-05-01 | 西南石油大学 | Fracturing fluid prepared by recovery waste water of crude oil and preparation method of fracturing fluid |
| CN104140805A (en) * | 2013-10-28 | 2014-11-12 | 中国石油化工股份有限公司 | Modified acrylamide polymer fracturing fluid |
| CN105647505A (en) * | 2015-12-31 | 2016-06-08 | 中国石油天然气股份有限公司 | Fracturing fluid solution capable of being prepared from high-mineralization water and application of fracturing fluid |
| CN106590611A (en) * | 2016-11-17 | 2017-04-26 | 新疆正通石油天然气股份有限公司 | Fracturing fluid of crosslinking association polymer and production method thereof |
| CN106939160A (en) * | 2016-04-19 | 2017-07-11 | 山东科瑞石油工程技术研究院 | A kind of high mineralization water quality clean fracturing fluid |
-
2017
- 2017-11-20 CN CN201711154710.XA patent/CN107828404A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229798A (en) * | 2011-05-17 | 2011-11-02 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Fracturing fluid prepared from simulated stratum produced water or stratum produced water |
| CN102796508A (en) * | 2011-05-25 | 2012-11-28 | 中国石油天然气股份有限公司 | Anionic surfactant crosslinked acid |
| CN102796506A (en) * | 2011-05-25 | 2012-11-28 | 中国石油天然气股份有限公司 | Ampholytic surfactant fracturing fluid |
| CN103074049A (en) * | 2013-01-21 | 2013-05-01 | 西南石油大学 | Fracturing fluid prepared by recovery waste water of crude oil and preparation method of fracturing fluid |
| CN104140805A (en) * | 2013-10-28 | 2014-11-12 | 中国石油化工股份有限公司 | Modified acrylamide polymer fracturing fluid |
| CN105647505A (en) * | 2015-12-31 | 2016-06-08 | 中国石油天然气股份有限公司 | Fracturing fluid solution capable of being prepared from high-mineralization water and application of fracturing fluid |
| CN106939160A (en) * | 2016-04-19 | 2017-07-11 | 山东科瑞石油工程技术研究院 | A kind of high mineralization water quality clean fracturing fluid |
| CN106590611A (en) * | 2016-11-17 | 2017-04-26 | 新疆正通石油天然气股份有限公司 | Fracturing fluid of crosslinking association polymer and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 郭刚等: "长庆油田采出水压裂液的研究与应用", 《断块油气田》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109135713A (en) * | 2018-09-05 | 2019-01-04 | 安徽炎胜新材料科技有限公司 | A kind of clean fracturing fluid and preparation method thereof for high salinity recovered water |
| CN109679641A (en) * | 2018-11-14 | 2019-04-26 | 中国石油集团西部钻探工程有限公司 | The fracturing fluid and preparation method thereof that high salinity salt lake saline is prepared |
| CN109679641B (en) * | 2018-11-14 | 2021-10-29 | 中国石油天然气集团有限公司 | Fracturing fluid prepared from high-salinity salt lake water and preparation method thereof |
| CN115584256A (en) * | 2022-12-13 | 2023-01-10 | 中石化西南石油工程有限公司 | High-temperature-resistant high-salt cleanup additive for acidizing and fracturing and preparation method thereof |
| CN118047905A (en) * | 2024-04-16 | 2024-05-17 | 中海油天津化工研究设计院有限公司 | Five-membered hydrophobically associating modified acrylamide polymer, preparation method thereof, suspension type thickening agent and fracturing fluid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107828404A (en) | A kind of fracturing fluid for matching somebody with somebody liquid for oil field high salinity recovered water | |
| CN103224779B (en) | Association-type non-crosslinking fracturing fluid and preparation method thereof | |
| WO2017113773A1 (en) | Hydrophobic associated polymer and preparation method therefor | |
| CN101121880B (en) | Natural macromolecule modified starch profile control agent for oil field | |
| CN112521560B (en) | Efficient salt-resistant one-dose dual-purpose thickening agent and preparation method and application thereof | |
| CN105219372B (en) | A kind of multi-functional composite fracturing liquid system | |
| CN105567213B (en) | CO is cleaned suitable for the high temperature resistance of untraditional reservoir exploitation2Foam fracturing fluid | |
| CN104910882B (en) | A kind of flexible gel particle and the flexible gel particle plugging agent being made from it | |
| CN110483687A (en) | Fracturing fluid thickener and preparation method thereof | |
| CN102757778B (en) | Fracturing fluid capable of resisting high salinity water quality | |
| CN102352232B (en) | Temperature-resistant and salt-resistant polymer clean fracturing fluid thickening agent and preparation method thereof | |
| CN102225988B (en) | Dispersant used in polymer cement mortar for oil field cementing, and preparation method thereof | |
| CN102558435B (en) | Fluorine-containing amphiphilic polymer viscosity reducer for crude oil and preparation method thereof | |
| CN102504794A (en) | Hydrophobically associating polymer and mixed surfactant binary compound oil displacement system | |
| CN103937484B (en) | Shale gas well slickwater fracturing fluid system high-efficiency emulsion quick water-soluble drag reducer | |
| CN116200183B (en) | High-efficiency variable-viscosity fracturing fluid for deep coal bed gas development and integrated construction method | |
| CN105777982A (en) | Drag reducer for slickwater fracturing fluid and synthesis method for drag reducer | |
| CN108690597A (en) | A kind of slippery water fracturing fluid | |
| CN108715757A (en) | A kind of preparation method of acidproof thickening agent and its application in multifunctional acid and acid-resistant pressing crack liquid | |
| CN106590591A (en) | Oil displacement agent composition used for oil recovery, and preparation method thereof | |
| CN110055044B (en) | A kind of high temperature and high salt heterogeneous reservoir Double regulating displacement system and its application | |
| CN106589232A (en) | Hydrophobic association acrylamide copolymer and preparing method | |
| CN110283276A (en) | A kind of oil well polyacrylamide and preparation method thereof | |
| CN108485640A (en) | A kind of high temperature resistant seawater-based fracturing fluid thickener and preparation method thereof | |
| CN114058360B (en) | Multifunctional suspension concentrated fracturing fluid and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180323 |
|
| RJ01 | Rejection of invention patent application after publication |