CN107523286A - A kind of cleaning slippery water fracturing fluid for shale reservoir and preparation method thereof - Google Patents
A kind of cleaning slippery water fracturing fluid for shale reservoir and preparation method thereof Download PDFInfo
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- CN107523286A CN107523286A CN201610443146.2A CN201610443146A CN107523286A CN 107523286 A CN107523286 A CN 107523286A CN 201610443146 A CN201610443146 A CN 201610443146A CN 107523286 A CN107523286 A CN 107523286A
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Abstract
The present invention relates to a kind of cleaning slippery water fracturing fluid for shale reservoir and preparation method thereof; the high-performance association type cleaning slippery water fracturing fluid system that the cleaning slippery water fracturing fluid, which is that a kind of configuration is simple and environmentally-friendly, possesses Fast-swelling, can realize that continuous mixture, resistance-reducing yield are high, solid-carrying performance is good, fracturing outlet liquid can be used to configure; its high property of reduction drag can reduce operation pressure; Fast-swelling and then realize that continuous mixture ensures huge discharge demand, and pass through fracturing outlet liquid reuse and reduce water resource waste and the requirement preserved the ecological environment.
Description
Technical field
The present invention relates to technical field of petroleum extraction, more particularly, to a kind of cleaning slippery water pressure break for shale reservoir
Liquid and preparation method thereof.
Background technology
Shale gas is the very huge unconventional gas resource of potentiality, has triggered a revolution of petroleum industry.Volume
Major way of the pressure break as shale gas reservoir stimulation operation, pressure break is carried out usually using slippery water, form of construction work is mainly logical
Huge discharge injection slippery water is crossed, the intrinsic fracture in stratum is produced shearing slip, secondary split constantly is formed in the side in crack
Seam, and then longer complex fracture network is formed, while low sand is carried than proppant, support microcrack.
Being usually used in preparing the friction reducer of slippery water includes natural polymer (guanidine glue and its derivative, cellulose derivative etc.)
With synthetic polymer (polyacrylamide, polyoxyethylene, other synthetic polymers) etc..Wherein guanidine glue and its derivative are as earliest
The slippery water drag reducer used, it has the advantages of cost is low, salt dissolubility is good, and under turbulent-flow conditions, guanidine gum concentration is more than 0.05%
When, the shortcomings of it is a kind of extraordinary friction reducer, but in high discharge capacity, and resistance reducing effect declines and residue content is high, limits
Its application and development are made；The polyacrylamide of early stage synthesis, its hydrolyzed polyacrylamide solution, resistance-reducing performance are well better than
Guanidine glue, but salt-resistance is poor, anti-shear stability energy is poor；Later stage acrylamide copolymer, in salt resistance and heat-resisting property all
Improve, its application has obtained bigger popularization, but polyacrylamide and acrylamide copolymer molecular weight are high, dissolution velocity
Slowly, situ configuration complex process, cost are high.
Its scope of construction item of volume fracturing is generally larger simultaneously, such as U.S. Barnett shale gas reservoir a bites horizontal well about
9000m3Fracturing fluid；Marcellus shale gas reservoirs about need 15000m3；Sichuan Changning-Weiyuan national level shale demonstration area straight well is about
Need 2000m3, horizontal well about needs 20000m3.According to my company in the big bag well operations experience of other region shale gas, shale gas gas reservoir
Individual layer pressure break needs fracturing fluid about 1500m3.Shale gas volume fracturing not only needs great lot of water resources, and the processing of discharge opeing is returned after pressure
As a distinct issues, the research and development of environment friendliness additive are the keys solved the problems, such as.
The content of the invention
It is an object of the invention to provide a kind of cleaning slippery water fracturing fluid for shale reservoir and preparation method thereof, solves
The problem of slippery water fracturing fluid of the prior art can not reuse, swelling time is long.
The technical proposal for solving the technical problem of the invention is：A kind of cleaning slippery water pressure break for shale reservoir
Liquid, include the component of following mass fraction：Friction reducer 0.01-0.5 parts, efficient cleanup additive 0.05-1 parts, clay stabilizer 0.05-
1 part and potassium chloride 0.5-5 parts.
In the cleaning slippery water fracturing fluid of the present invention, the component of following mass fraction is included：Friction reducer 0.05-0.1 parts,
Efficient cleanup additive 0.1-0.3 parts, clay stabilizer 0.1-0.3 parts and potassium chloride 1-3 parts.
In the cleaning slippery water fracturing fluid of the present invention, the friction reducer includes the component of following mass fraction：Acryloyl
Amine 1-30 parts, 2- acrylamide-2-methyl propane sulfonic 1-30 parts, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide
0.01-1 parts, dimethyl diallyl ammonium chloride 0.5-20 parts and initiator 0.001-0.5 parts.
In the cleaning slippery water fracturing fluid of the present invention, the friction reducer includes the component of following mass fraction：Acryloyl
Amine 10-15 parts, 2- acrylamide-2-methyl propane sulfonic 10-15 parts, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide
0.05-0.2 parts, dimethyl diallyl ammonium chloride 5-10 parts and initiator 0.01-0.05 parts.
In the cleaning slippery water fracturing fluid of the present invention, the initiator includes potassium peroxydisulfate and anhydrous sodium sulfate, described
The mass ratio of potassium peroxydisulfate and anhydrous sodium sulfate is 0.1~10, it is preferable that the mass ratio of the potassium peroxydisulfate and anhydrous sodium sulfate
For 2.
In the cleaning slippery water fracturing fluid of the present invention, the efficiently cleanup additive is polyethylene glycol perfluor capronate.
In the cleaning slippery water fracturing fluid of the present invention, the clay stabilizer is octadecyldimethyl ammonium bromide.
The present invention also provides a kind of preparation method of the cleaning slippery water fracturing fluid for shale reservoir, including：Drop is hindered
Agent, efficient cleanup additive, clay stabilizer and potassium chloride, which are dissolved in water or returned, forms cleaning slippery water fracturing fluid in discharge opeing.Wherein, drop
The mass fraction of resist is 0.01-0.5 parts, the mass fraction of efficient cleanup additive is 0.05-1 parts, the mass parts of clay stabilizer
Number is that the mass fraction of 0.05-1 parts and potassium chloride is 0.5-5 parts.Preferably, the mass fraction of friction reducer be 0.05-0.1 parts,
The mass fraction of efficient cleanup additive is 0.1-0.3 parts, the quality that the mass fraction of clay stabilizer is 0.1-0.3 parts and potassium chloride
Number is 1-3 parts.
In being used in the preparation method of cleaning slippery water fracturing fluid of shale reservoir for the present invention, the preparation of the friction reducer
Process is as follows：
S1, after 2- acrylamide-2-methyl propane sulfonics are uniformly dissolved, pH value 7-9 is adjusted with sodium hydroxide；
S2, by acrylamide, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide, dimethyl diallyl chlorination
In the solution that ammonium input step S1 is formed, it is well mixed；
S3, add initiator in the solution that step S2 is prepared, be passed through inert gas, under the conditions of 20~30 DEG C of constant temperature with
50~100 turns/min of mixing speed stirs 30~60min, and temperature is adjusted into 50~60 DEG C after 2~6h of reaction reacts 2~3h, extremely
Liquid is changed into transparent blob of viscose；
S4, the transparent blob of viscose for forming step S3 shred, and dry, crush and with 80~150 mesh sieve at 50~80 DEG C
Screening, powdered friction reducer is made.
Wherein, the mass fraction of acrylamide be 1-30 parts, the mass fraction of 2- acrylamide-2-methyl propane sulfonics be 1-
30 parts, the mass fraction of methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide be 0.01-1 parts, dimethyl diallyl
The mass fraction of ammonium chloride is that the mass fraction of 0.5-20 parts and initiator is 0.001-0.5 parts.Preferably, the matter of acrylamide
Amount number is 10-15 parts, the mass fraction of 2- acrylamide-2-methyl propane sulfonics is 10-15 parts, methylacryoyloxyethyl two
The mass fraction of methyl cetyl ammonium bromide is 0.05-0.2 parts, the mass fraction of dimethyl diallyl ammonium chloride is 5-10
The mass fraction of part and initiator is 0.01-0.05 parts.Wherein, the initiator includes potassium peroxydisulfate and anhydrous sodium sulfate, institute
The mass ratio for stating potassium peroxydisulfate and anhydrous sodium sulfate is 0.1~10, it is preferable that the quality of the potassium peroxydisulfate and anhydrous sodium sulfate
Than for 2.
In being used in the preparation method of cleaning slippery water fracturing fluid of shale reservoir for the present invention, the efficiently cleanup additive is
Polyethylene glycol perfluor capronate, the clay stabilizer are octadecyldimethyl ammonium bromide.
Implement cleaning slippery water fracturing fluid for shale reservoir of the present invention and preparation method thereof, have below beneficial to effect
Fruit：The cleaning slippery water fracturing fluid of the present invention, which is that a kind of configuration is simple and environmentally-friendly, possesses Fast-swelling, can realize continuous mixture, drop
The high-performance association type cleaning slippery water fracturing fluid system that resistance rate is high, solid-carrying performance is good, fracturing outlet liquid can be used to configure, its
High property of reduction drag can reduce operation pressure, Fast-swelling and then realize that continuous mixture ensures huge discharge demand, and pass through pressure break
Return discharge opeing reuse and reduce water resource waste and the requirement preserved the ecological environment.
Embodiment
With reference to embodiment, cleaning slippery water fracturing fluid for shale reservoir of the present invention and preparation method thereof is made
Further illustrate：
The present invention provides a kind of repeatable utilization, high drag reduction, the simple slippery water fracturing fluid system of configuration, and is directed to shale
The characteristic of reservoir, friction reducer, cleanup additive, clay stabilizer study and preferred.
The cleaning slippery water fracturing fluid for shale reservoir of the present invention includes the component of following mass fraction：Friction reducer
0.01-0.5 parts, efficient cleanup additive 0.05-1 parts, clay stabilizer 0.05-1 parts and potassium chloride 0.5-5 parts.Preferably, it is of the invention
The cleaning slippery water fracturing fluid for shale reservoir include the component of following mass fraction：Friction reducer 0.05-0.1 parts, efficiently
Cleanup additive 0.1-0.3 parts, clay stabilizer 0.1-0.3 parts and potassium chloride 1-3 parts.
Wherein, friction reducer includes the component of following mass fraction：Acrylamide 1-30 parts, 2- acrylamide -2- methyl-props
Sulfonic acid 1-30 parts, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide 0.01-1 parts, dimethyl diallyl ammonium chloride
0.5-20 parts and initiator 0.001-0.5 parts.Preferably, friction reducer includes the component of following mass fraction：Acrylamide 10-15
Part, 2- acrylamide-2-methyl propane sulfonic 10-15 parts, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide 0.05-
0.2 part, dimethyl diallyl ammonium chloride 5-10 parts and initiator 0.01-0.05 parts.
Wherein, initiator includes potassium peroxydisulfate and anhydrous sodium sulfate, and the mass ratio of potassium peroxydisulfate and anhydrous sodium sulfate is 0.1
~10, the mass ratio of potassium peroxydisulfate and anhydrous sodium sulfate is preferably 0.5~4, and the mass ratio of potassium peroxydisulfate and anhydrous sodium sulfate is more
Preferably 2.
Above-mentioned friction reducer is free of water-insoluble, without using crosslinking agent, and interim space networks are formed by associating, acting synergistically
Shape structure, there is good solid-carrying performance, the advantages of it inherits conventional surfactants clean fracturing fluid：Cleaning, it is not residual
Slag；Structure is reversible, forms supramolecular aggregation by molecular separating force, then forms the network structure for being covered with whole space, have
Good shear thinning behavior, viscoplasticity, take the performances such as grittiness.
Wherein, above-mentioned efficiently cleanup additive is polyethylene glycol perfluor capronate, can reduce surface and interface tension force, water resistant lock, promote
Liquid fluidity, make liquid be more easy to return out, reduce injury of the liquid to reservoir, it reduces fracturing fluid system surface and interface tension force, can
20mN/m is reduced to, while its distinctive molecular structure can also avoid water from after immersing near wellbore zone water saturation being caused to increase
Add, the hollow billet resistance increase of oil-water interfaces and Jamin effect in blowhole.
Above-mentioned clay stabilizer is octadecyldimethyl ammonium bromide, or can also be small cation quaternary ammonium salt.
The preparation method of the above-mentioned cleaning slippery water fracturing fluid for shale reservoir, including：By friction reducer, the efficiently row of helping
Agent, clay stabilizer and potassium chloride are dissolved in water or returned according to above-mentioned formula forms cleaning slippery water fracturing fluid in discharge opeing.Specifically
Ground, by the friction reducer of the mass fraction of 0.01-0.5 parts, the efficient cleanup additive of the mass fraction of 0.05-1 parts, 0.05-1 parts matter
The potassium chloride for measuring the clay stabilizer of number and the mass fraction of 0.5-5 parts is dissolved in water or returned in discharge opeing, 100 parts of quality of formation
The cleaning slippery water fracturing fluid of number, that is to say, that part containing 0.01-0.5 in the cleaning slippery water fracturing fluid of 100 parts of mass fractions
Friction reducer, the efficient cleanup additive of 0.05-1 parts, 0.05-1 parts clay stabilizer and 0.5-5 part potassium chloride, surplus are water or return discharge opeing.
Similarly, it is preferable that by the friction reducer of the mass fraction of 0.05-0.1 parts, the mass fraction of 0.1-0.3 parts efficient cleanup additive,
The potassium chloride of the clay stabilizer of the mass fraction of 01-0.3 parts and the mass fraction of 1-3 parts is dissolved in water or returned in discharge opeing, surplus
For water, the cleaning slippery water fracturing fluid of 100 parts of mass fractions of formation.
Above-mentioned process for preparation is preferably：Potassium chloride, clay stabilizer are first added to water or return stirring and dissolving in discharge opeing, so
After add friction reducer, efficient cleanup additive, stir 20-30s.When preparing the fracturing fluid indoors, it can use Wu Yin is mixed to adjust device.
Wherein, the preparation process of friction reducer is as follows：
S1, after 2- acrylamide-2-methyl propane sulfonics are uniformly dissolved, pH value 7-9 is adjusted with sodium hydroxide；
S2, by acrylamide, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide, dimethyl diallyl chlorination
In the solution that ammonium input step S1 is formed, it is well mixed；
S3, add initiator in the solution that step S2 is prepared, be passed through inert gas, under the conditions of 20~30 DEG C of constant temperature with
50~100 turns/min of mixing speed stirs 30~60min, and temperature is adjusted into 50~60 DEG C after 2~6h of reaction reacts 2~3h, extremely
Liquid is changed into transparent blob of viscose；Wherein mixing speed is preferably 75 turns/min；Wherein, inert gas is preferably N2, or dilute
There is gas etc.；
S4, the transparent blob of viscose for forming step S3 shred, and dry, crush and with 80~150 mesh sieve at 50~80 DEG C
Screening, powdered friction reducer is made；Preferably, dry, crush at 70 DEG C and screened with 100 mesh sieve, powdered drop is made
Resist.
Wherein, the mass fraction of acrylamide be 1-30 parts, the mass fraction of 2- acrylamide-2-methyl propane sulfonics be 1-
30 parts, the mass fraction of methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide be 0.01-1 parts, dimethyl diallyl
The mass fraction of ammonium chloride is that the mass fraction of 0.5-20 parts and initiator is 0.001-0.5 parts, the aqueous solution formed after dissolving
For 100 parts of mass fractions, surplus is water.Preferably, the mass fraction of acrylamide is 10-15 parts, 2- acrylamide -2- methyl
The mass fraction of propane sulfonic acid is 10-15 parts, the mass fraction of methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide is
0.05-0.2 parts, the mass fraction of dimethyl diallyl ammonium chloride are that the mass fraction of 5-10 parts and initiator is 0.01-
0.05 part, the aqueous solution formed after dissolving is 100 parts of mass fractions, and surplus is water.
The cleaning slippery water fracturing fluid compatibility for shale reservoir of the present invention is good, low to water quality requirement, can use pressure
Split and return discharge opeing preparation；Swelling rate is fast, can be completely dissolved in 20s and reach best use effect, and continuous mixture operation can be achieved；
Using low molecule friction reducer, without using gel breaker；Resistance reducing effect is good, and resistance-reducing yield can reach 85%, returns discharge opeing configuration resistance-reducing yield
Up to 78%；It is dry powder from friction reducer, easily transports and store.
Illustrate below by specific embodiment.
Embodiment 1：
12g 2- acrylamide-2-methyl propane sulfonics are dissolved in 67.87g water, after being uniformly dissolved, adjusted with sodium hydroxide
Save pH value 7-9；By 12g acrylamides, 0.1g methylacryoyloxyethyl dimethyl hexadecyl bases ammonium bromide, 8g dimethyl diene
Propyl ammonium chloride is put into above-mentioned solution, is well mixed；Then addition 0.03g initiators (contain potassium peroxydisulfate and anhydrous slufuric acid
The mass ratio of sodium is passed through inert gas for 2), and 45min, reaction are stirred with 75 turns/min of mixing speed under the conditions of 25 DEG C of constant temperature
Temperature is adjusted to 55 DEG C of reaction 2.5h after 4h, is changed into transparent blob of viscose to liquid；The transparent blob of viscose of formation is shredded, dried at 65 DEG C
Dry, crushing is simultaneously screened with 100 mesh sieve, and powdered friction reducer is made.
Take 487.75g water to be placed in the mixed tune devices of Wu Yin that volume is 1000ml, add 10g potassium chloride, 1g contains octadecane
The clay stabilizer of base ditallowdimethyl ammonium bromide, the friction reducer to be dissolved for sequentially adding the above-mentioned preparations of 0.25g, 1g contain polyethylene glycol
The efficient cleanup additive of perfluor capronate, stirring 20s are well mixed, and cleaning slippery water fracturing fluid is made, cleans slippery water fracturing fluid
Detailed performance such as following table：
Embodiment 2
Certain shale gas well pressure, which is split, returns discharge opeing 1000ml, stands 2h, it is 1000ml to take supernatant liquor 487.75g to be placed in volume
Wu Yin it is mixed adjust in device, add 10g potassium chloride, the clay stabilizer that 1g contains octadecyldimethyl ammonium bromide, it is to be dissolved according to
The efficient cleanup additive that friction reducer, the 1g prepared in secondary addition 0.25g embodiment 1 contains polyethylene glycol perfluor capronate, stirring
20s is well mixed, and cleaning slippery water fracturing fluid, the cleaning slippery water fracturing fluid detailed performance such as following table is made by returning discharge opeing：
| Sequence number | Detection project | Assay |
| 1 | Density, g/cm3 | 1.008 |
| 2 | pH | 7 |
| 3 | Apparent viscosity, mPas | 4.5 |
| 4 | Resistance-reducing yield, % | 75.8 |
| 5 | Anti-dilative, % | 93.3 |
| 6 | Surface tension, mN/m | 23.26 |
| 7 | Interfacial tension, mN/m | 0.77 |
| 8 | Residue content, mg/L | 0 |
Embodiment 3：
10g 2- acrylamide-2-methyl propane sulfonics are dissolved in 69.79g water, after being uniformly dissolved, adjusted with sodium hydroxide
Save pH value 7-9；By 15g acrylamides, 0.2g methylacryoyloxyethyl dimethyl hexadecyl bases ammonium bromide, 5g dimethyl diene
Propyl ammonium chloride is put into above-mentioned solution, is well mixed；Then addition 0.01g initiators (contain potassium peroxydisulfate and anhydrous slufuric acid
The mass ratio of sodium is passed through inert gas for 1), and 50min, reaction are stirred with 100 turns/min of mixing speed under the conditions of 20 DEG C of constant temperature
Temperature is adjusted to 60 DEG C of reaction 3h after 2h, is changed into transparent blob of viscose to liquid；The transparent blob of viscose of formation is shredded, dried at 80 DEG C
Dry, crushing is simultaneously screened with 80 mesh sieve, and powdered friction reducer is made.
Take 482.6g water to be placed in the mixed tune devices of Wu Yin that volume is 1000ml, add 15g potassium chloride, 0.5g contains octadecane
The clay stabilizer of base ditallowdimethyl ammonium bromide, the friction reducer to be dissolved for sequentially adding the above-mentioned preparations of 0.4g, 1.5g contain poly- second two
The efficient cleanup additive of alcohol perfluor capronate, stirring 25s are well mixed, and cleaning slippery water fracturing fluid is made, cleans slippery water pressure break
Liquid detailed performance such as following table：
| Sequence number | Detection project | Assay |
| 1 | Density, g/cm3 | 1.006 |
| 2 | pH | 7 |
| 3 | Apparent viscosity, mPas | 4.2 |
| 4 | Resistance-reducing yield, % | 75.5 |
| 5 | Anti-dilative, % | 91.5 |
| 6 | Surface tension, mN/m | 22.45 |
| 7 | Interfacial tension, mN/m | 0.72 |
| 8 | Residue content, mg/L | 0 |
Embodiment 4：
15g 2- acrylamide-2-methyl propane sulfonics are dissolved in 64.9g water, after being uniformly dissolved, adjusted with sodium hydroxide
PH value 7-9；By 10g acrylamides, 0.05g methylacryoyloxyethyl dimethyl hexadecyl bases ammonium bromide, 10g dimethyl diene
Propyl ammonium chloride is put into above-mentioned solution, is well mixed；Then addition 0.05g initiators (contain potassium peroxydisulfate and anhydrous slufuric acid
The mass ratio of sodium is passed through inert gas for 4), and 60min, reaction are stirred with 50 turns/min of mixing speed under the conditions of 30 DEG C of constant temperature
Temperature is adjusted to 50 DEG C of reaction 2h after 6h, is changed into transparent blob of viscose to liquid；The transparent blob of viscose of formation is shredded, dried at 50 DEG C
Dry, crushing is simultaneously screened with 150 mesh sieve, and powdered friction reducer is made.
Take 492.5g water to be placed in the mixed tune devices of Wu Yin that volume is 1000ml, add 5g potassium chloride, 1.5g contains octadecane
The clay stabilizer of base ditallowdimethyl ammonium bromide, the friction reducer to be dissolved for sequentially adding the above-mentioned preparations of 0.5g, 0.5g contain poly- second two
The efficient cleanup additive of alcohol perfluor capronate, stirring 20s are well mixed, and cleaning slippery water fracturing fluid is made, cleans slippery water pressure break
Liquid detailed performance such as following table：
Embodiment 5：
30g 2- acrylamide-2-methyl propane sulfonics are dissolved in 49g water, after being uniformly dissolved, pH is adjusted with sodium hydroxide
Value 7-9；By 1g acrylamides, 0.01g methylacryoyloxyethyl dimethyl hexadecyl bases ammonium bromide, the allyl of 20g dimethyl two
Ammonium chloride is put into above-mentioned solution, is well mixed；Then addition 0.001g initiators (contain potassium peroxydisulfate and anhydrous sodium sulfate
Mass ratio for 0.1), be passed through inert gas, 30min, reaction stirred with 100 turns/min of mixing speed under the conditions of 25 DEG C of constant temperature
Temperature is adjusted to 50 DEG C of reaction 2h after 4h, is changed into transparent blob of viscose to liquid；The transparent blob of viscose of formation is shredded, dried at 70 DEG C
Dry, crushing is simultaneously screened with 100 mesh sieve, and powdered friction reducer is made.
Certain shale gas well pressure, which is split, returns discharge opeing 1000ml, stands 2h, it is 1000ml to take supernatant liquor 487.25g to be placed in volume
Wu Yin it is mixed adjust in device, add 0.25g potassium chloride, the clay stabilizer that 5g contains octadecyldimethyl ammonium bromide, it is to be dissolved
The friction reducer of the above-mentioned preparations of 2.5g is sequentially added, 5g contains the efficient cleanup additive of polyethylene glycol perfluor capronate, stirring 30s mixing
Uniformly, cleaning slippery water fracturing fluid is made, cleans slippery water fracturing fluid detailed performance such as following table：
| Sequence number | Detection project | Assay |
| 1 | Density, g/cm3 | 1.006 |
| 2 | pH | 7 |
| 3 | Apparent viscosity, mPas | 4.7 |
| 4 | Resistance-reducing yield, % | 73.1 |
| 5 | Anti-dilative, % | 92.1 |
| 6 | Surface tension, mN/m | 23.78 |
| 7 | Interfacial tension, mN/m | 0.72 |
| 8 | Residue content, mg/L | 0 |
Embodiment 6：
1g 2- acrylamide-2-methyl propane sulfonics are dissolved in 67g water, after being uniformly dissolved, pH is adjusted with sodium hydroxide
Value 7-9；By 30g acrylamides, 1g methylacryoyloxyethyl dimethyl hexadecyl bases ammonium bromide, 0.5g dimethyl diallyls
Ammonium chloride is put into above-mentioned solution, is well mixed；Then the 0.5g initiator (matter containing potassium peroxydisulfate and anhydrous sodium sulfate is added
Amount stirs 45min under the conditions of 25 DEG C of constant temperature than for 10), being passed through inert gas with 75 turns/min of mixing speed, and reacting will after 4h
Temperature is adjusted to 60 DEG C of reaction 2h, is changed into transparent blob of viscose to liquid；The transparent blob of viscose of formation is shredded, dries, crush at 70 DEG C
And screened with 100 mesh sieve, powdered friction reducer is made.
Certain shale gas well pressure, which is split, returns discharge opeing 1000ml, stands 2h, it is 1000ml to take supernatant liquor 474.45g to be placed in volume
Wu Yin it is mixed adjust in device, add 25g potassium chloride, the clay stabilizer that 0.25g contains octadecyldimethyl ammonium bromide, it is to be dissolved
The friction reducer of the above-mentioned preparations of 0.05g is sequentially added, 0.25g contains the efficient cleanup additive of polyethylene glycol perfluor capronate, stirs 30s
It is well mixed, cleaning slippery water fracturing fluid is made, cleans slippery water fracturing fluid detailed performance such as following table：
| Sequence number | Detection project | Assay |
| 1 | Density, g/cm3 | 1.007 |
| 2 | pH | 7 |
| 3 | Apparent viscosity, mPas | 4.6 |
| 4 | Resistance-reducing yield, % | 74.3 |
| 5 | Anti-dilative, % | 90.8 |
| 6 | Surface tension, mN/m | 22.66 |
| 7 | Interfacial tension, mN/m | 0.74 |
| 8 | Residue content, mg/L | 0 |
The cleaning slippery water fracturing fluid for shale reservoir prepared from above-described embodiment and experimental data, the present invention
Performance is preferable, and especially resistance reducing effect is obvious.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
All these improvement or conversion should all belong within the appended desired protection domain of the present invention.
Claims (10)
1. a kind of cleaning slippery water fracturing fluid for shale reservoir, it is characterised in that include the component of following mass fraction：Drop
Resist 0.01-0.5 parts, efficient cleanup additive 0.05-1 parts, clay stabilizer 0.05-1 parts and potassium chloride 0.5-5 parts.
2. cleaning slippery water fracturing fluid according to claim 1, it is characterised in that include the component of following mass fraction：
Friction reducer 0.05-0.1 parts, efficient cleanup additive 0.1-0.3 parts, clay stabilizer 0.1-0.3 parts and potassium chloride 1-3 parts.
3. cleaning slippery water fracturing fluid according to claim 1, it is characterised in that the friction reducer includes following mass parts
Several components：Acrylamide 1-30 parts, 2- acrylamide-2-methyl propane sulfonic 1-30 parts, methylacryoyloxyethyl dimethyl
Cetyl ammonium bromide 0.01-1 parts, dimethyl diallyl ammonium chloride 0.5-20 parts and initiator 0.001-0.5 parts.
4. cleaning slippery water fracturing fluid according to claim 3, it is characterised in that the friction reducer includes following mass parts
Several components：Acrylamide 10-15 parts, 2- acrylamide-2-methyl propane sulfonic 10-15 parts, methylacryoyloxyethyl diformazan
Base cetyl ammonium bromide 0.05-0.2 parts, dimethyl diallyl ammonium chloride 5-10 parts and initiator 0.01-0.05 parts.
5. it is according to claim 3 cleaning slippery water fracturing fluid, it is characterised in that the initiator include potassium peroxydisulfate and
Anhydrous sodium sulfate, the mass ratio of the potassium peroxydisulfate and anhydrous sodium sulfate is 0.1~10.
6. cleaning slippery water fracturing fluid according to claim 1, it is characterised in that the efficiently cleanup additive is polyethylene glycol
Perfluor capronate.
7. cleaning slippery water fracturing fluid according to claim 1, it is characterised in that the clay stabilizer is octadecyl
Ditallowdimethyl ammonium bromide.
A kind of 8. preparation method of cleaning slippery water fracturing fluid for shale reservoir, it is characterised in that including：By friction reducer,
Efficient cleanup additive, clay stabilizer and potassium chloride, which are dissolved in water or returned, forms cleaning slippery water fracturing fluid in discharge opeing.
9. the preparation method of the cleaning slippery water fracturing fluid according to claim 8 for shale reservoir, it is characterised in that
The preparation process of the friction reducer is as follows：
S1, after 2- acrylamide-2-methyl propane sulfonics are uniformly dissolved, pH value 7-9 is adjusted with sodium hydroxide；
S2, by acrylamide, methylacryoyloxyethyl dimethyl hexadecyl base ammonium bromide, dimethyl diallyl ammonium chloride throw
In the solution for entering step S1 formation, it is well mixed；
S3, initiator is added in the solution that step S2 is prepared, be passed through inert gas, with stirring under the conditions of 20~30 DEG C of constant temperature
50~100 turns/min of speed stirs 30~60min, and temperature is adjusted into 50~60 DEG C after 2~6h of reaction reacts 2~3h, to liquid
It is changed into transparent blob of viscose；
S4, the transparent blob of viscose for forming step S3 shred, and dry, crush at 50~80 DEG C and are screened with 80~150 mesh sieve,
Powdered friction reducer is made.
10. the preparation method of the cleaning slippery water fracturing fluid according to claim 8 for shale reservoir, its feature exist
In the efficiently cleanup additive is polyethylene glycol perfluor capronate, and the clay stabilizer is octadecyldimethyl ammonium bromide.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504361A (en) * | 2019-01-14 | 2019-03-22 | 重庆长江造型材料（集团）股份有限公司 | A kind of drag reduction film composition |
| CN110003877A (en) * | 2019-04-12 | 2019-07-12 | 四川申和新材料科技有限公司 | A kind of anti-high salinity cleaning become sticky slippery water, crosslinking agent, become sticky friction reducer and preparation method |
| CN110746536A (en) * | 2019-11-06 | 2020-02-04 | 中国石油集团渤海钻探工程有限公司 | Resistance reducing agent for slickwater and preparation method thereof |
| CN111635749A (en) * | 2020-06-11 | 2020-09-08 | 四川光亚聚合物化工有限公司 | Slick water system with resistance reduction and sand carrying functions and preparation method thereof |
| CN111748054A (en) * | 2020-05-25 | 2020-10-09 | 中国石油天然气股份有限公司 | Acid-resistant resistance-reducing agent, preparation method thereof and acid-resistant slickwater fracturing fluid system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100273683A1 (en) * | 2005-05-31 | 2010-10-28 | Hui Shirley Yang | Compositions having hase rheology modifiers |
| CN104387526A (en) * | 2014-11-04 | 2015-03-04 | 长江大学 | Method for synthesizing broad-spectrum amphoteric polyacrylamide emulsion |
| CN104559997A (en) * | 2013-10-23 | 2015-04-29 | 中国石油化工股份有限公司 | Slippery water for shale gas fracturing and preparation method thereof |
| CN105567211A (en) * | 2015-12-28 | 2016-05-11 | 重庆地质矿产研究院 | Shale gas slickwater fracturing fluid and preparation method thereof |
-
2016
- 2016-06-20 CN CN201610443146.2A patent/CN107523286A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100273683A1 (en) * | 2005-05-31 | 2010-10-28 | Hui Shirley Yang | Compositions having hase rheology modifiers |
| CN104559997A (en) * | 2013-10-23 | 2015-04-29 | 中国石油化工股份有限公司 | Slippery water for shale gas fracturing and preparation method thereof |
| CN104387526A (en) * | 2014-11-04 | 2015-03-04 | 长江大学 | Method for synthesizing broad-spectrum amphoteric polyacrylamide emulsion |
| CN105567211A (en) * | 2015-12-28 | 2016-05-11 | 重庆地质矿产研究院 | Shale gas slickwater fracturing fluid and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504361A (en) * | 2019-01-14 | 2019-03-22 | 重庆长江造型材料（集团）股份有限公司 | A kind of drag reduction film composition |
| CN110003877A (en) * | 2019-04-12 | 2019-07-12 | 四川申和新材料科技有限公司 | A kind of anti-high salinity cleaning become sticky slippery water, crosslinking agent, become sticky friction reducer and preparation method |
| CN110003877B (en) * | 2019-04-12 | 2021-07-27 | 四川申和新材料科技有限公司 | High-salinity-resistant clean variable-viscosity slickwater, cross-linking agent, variable-viscosity resistance-reducing agent and preparation method |
| CN110746536A (en) * | 2019-11-06 | 2020-02-04 | 中国石油集团渤海钻探工程有限公司 | Resistance reducing agent for slickwater and preparation method thereof |
| CN110746536B (en) * | 2019-11-06 | 2021-06-08 | 中国石油集团渤海钻探工程有限公司 | Resistance reducing agent for slickwater and preparation method thereof |
| CN111748054A (en) * | 2020-05-25 | 2020-10-09 | 中国石油天然气股份有限公司 | Acid-resistant resistance-reducing agent, preparation method thereof and acid-resistant slickwater fracturing fluid system |
| CN111748054B (en) * | 2020-05-25 | 2022-06-03 | 中国石油天然气股份有限公司 | Acid-resistant resistance-reducing agent, preparation method thereof and acid-resistant slickwater fracturing fluid system |
| CN111635749A (en) * | 2020-06-11 | 2020-09-08 | 四川光亚聚合物化工有限公司 | Slick water system with resistance reduction and sand carrying functions and preparation method thereof |
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