CN110129021A - A kind of pressure break drag reducer and preparation method thereof - Google Patents

A kind of pressure break drag reducer and preparation method thereof Download PDF

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CN110129021A
CN110129021A CN201910416378.2A CN201910416378A CN110129021A CN 110129021 A CN110129021 A CN 110129021A CN 201910416378 A CN201910416378 A CN 201910416378A CN 110129021 A CN110129021 A CN 110129021A
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陈卓
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    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—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
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    • 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
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    • 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
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    • 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
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    • C09K2208/28—Friction or drag reducing additives

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Abstract

The invention discloses a kind of pressure break drag reducers and preparation method thereof, belong to oil and gas exploitation field.Triacylglycerol Acyl- hydrolase, β -1 is added in the present invention; 4 mannases are mixed; key fracture on xanthan molecule chain is carried out to the colloid in fracturing fluid and reaches the performance of fracturing fluid mobility increase in a short time so that the colloid molecule of larger molecular weight is converted to small molecule；Anti- expansion activating agent prepared by the present invention is with cationic polyacrylamide etc. for raw material, and cation exch ange adsorption can occurs with the low price cation etc. on surface of clay in it, reduces energy loss；It is raw material through hydrogen peroxide oxidation that the row's of helping activating agent prepared by the present invention, which is using hexadecyldimethyl benzyl ammonium tertiary amine, obtain the surfactant of amine-oxides class, clay particle can be bonded together, and increase contact angle, to reduce capillary force, so that arriving for the row's of returning performance of fracturing fluid improves, the present invention solves the problems, such as that current friction reducer resistance-reducing yield is low, big to stratum nocuity.

Description

A kind of pressure break drag reducer and preparation method thereof
Technical field
The invention belongs to oil and gas exploitation fields, and in particular to a kind of pressure break drag reducer and preparation method thereof.
Background technique
The unconventional reservoirs such as shale gas, tight gas (unconventional reservoir, unconventional gas well are a kind of sayings risen in recent years, Be primarily referred to as permeability low reservoir and gas well) have become the hot spot of oil-gas exploration and development, practice have shown that, tight sand, The volume fracturing for carrying out extensive, high discharge capacity is needed just to be able to achieve benefit exploitation in the non-conventional gas well development such as shale gas reservoir.Shale The reservoir of gas has the characteristics that low porosity and low-permeability, and exploitation difficulty is big, is mainly opened at present using slippery water fracturing technology It adopts, after fracturing fluid is pressurized by high-pressure pump injection device, stratum is pumped by tubing string high speed, fluid is in pipe under the conditions of high-voltage high-speed Turbulent flow phenomenon is serious in flow process, there is biggish frictional resistance between fracturing fluid and tube wall, and the frictional resistance of fluid limits The flowing of fluid in the duct causes pipeline throughput rate to reduce and increases with energy loss.Therefore, it is necessary to using addition drop in a fluid The method of resist reduces the influence of frictional resistance, improves construction efficiency.
Friction reducer is typically all to be made of multiple components, wherein containing fine graphite, bentonite, curing agent, lubricant, conduction Cement etc., generally grey black.It is a kind of good electric conductor, it is used between grounding body and soil, one side energy Enough and metallic ground body is in close contact, and forms sufficiently large current flowing face；On the other hand it can be permeated to surrounding soil, be reduced Surrounding soil resistivity forms the gentle low resistance region of variation around grounding body.
Friction reducer purposes is very extensive at present, in the every field of national economy.It for electric power, telecommunications, building, Broadcast, TV, railway, highway, aviation, water transport, defence and military, metallurgical mine, coal, petroleum, chemical industry, weaving, medical and health, In electrical earth device in the industries such as culture and education.And friction reducer is a kind of common lightning-protected product, as a kind of auxiliary Property materials'use, with good elimination contact resistance, the performances such as effective cross-section for reducing soil resistivity, increasing grounding body, It has widely applied in the grounding project at present, drop resistance, antiseptic property are relatively stable, work well, in lightning protection mitigation cause Play the role of vital.The main component of soil friction reducer is conductive material such as salt or solid conduction powder etc., When practice of construction, friction reducer is filled in around earthing pole, water is added to be tuned into slurry like material, then backfill compacting.The drop of friction reducer It is resistive can mainly pass through following four in terms of realize: 1. friction reducers the diffusion of peripherad soil and can permeate, and connect to reduce Soil resistivity around earth polar；2. friction reducer self-resistance rate is very low, after being filled in around earthing pole, it is equivalent to expand and connects The effective sectional area in earth polar；3. some physics friction reducers and bentonite friction reducer can be adsorbed on ground connection pole surface, when in earthing pole After surrounding applies friction reducer, the contact resistance of earthing pole can be reduced or even eliminated；4. friction reducer has very strong water imbibition and guarantor It is aqueous, low resistivity is kept steadily in the long term, stablizes ground resistance in low state without the environmental factors shadow such as climate It rings.
Disclose a kind of shale gas pressure break drag reducer and preparation method thereof on the market at present, it be in saline solution Acrylamide, 2- acrylamide-2-methylpro panesulfonic acid sodium and sodium acrylate three are caused by free radical under the protection of dispersing agent Kind monomer carries out random copolymerization and obtains emulsus, evenly dispersed friction reducer, has preferable endurance of cutting energy, but according to the patent The product of the method preparation of application agglomerates after standing overnight, and viscosity is very high, flow difficulties, is unable to satisfy site operation requirement, and And under the conditions of flow is lower, the resistance-reducing efficiency of the friction reducer of invention synthesis is only 20%.Be badly in need of now a kind of resistance-reducing yield it is high, The friction reducer for the advantages such as formation damage is low.
Summary of the invention
The technical problems to be solved by the invention: the problem low, big to stratum nocuity for current friction reducer resistance-reducing yield, A kind of pressure break drag reducer and preparation method thereof is provided.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of pressure break drag reducer, including enzyme additive, enzymatic protective reagent, catalyst, anti-expansion activating agent, the row's of helping activating agent.
The enzyme additive are as follows: take triacylglycerol Acyl- hydrolase 4 ~ 7:3 in mass ratio ~ 5 that β -1,4 mannase is added Mixing to get.
The enzymatic protective reagent are as follows: according to the mass fraction, take 6 ~ 9 portions of soluble starches, 10 ~ 20 parts of yeast extracts, 3 ~ 6 parts of phosphoric acid Hydrogen dipotassium, 0.5 ~ 1 part of ammonium chloride, 0.5 ~ 1.5 part of magnesium sulfate, 0.3 ~ 0.8 part of sodium chloride, 6 ~ 10 parts of palm oils, 2 ~ 3 parts of tweens- 80 mixing to get.
The catalyst the preparation method comprises the following steps:
It takes Nickel dichloride hexahydrate 1 ~ 3:10 in mass ratio ~ 30 that ethylene glycol is added to be stirred, adds quality of glycol 1 ~ 5% Sodium borohydride obtains mixed liquor, takes mixed liquor 50 ~ 60:5 in mass ratio ~ 10 that graphene oxide is added, and ultrasonic disperse is warming up to 180 ~ 200 DEG C of 2 ~ 5h of heat preservation, are cooled to room temperature, and filter, and take suction filtration slag to wash drying through dehydrated alcohol, grind and sieve with 100 mesh sieve, Sieving particle is collected to get catalyst.
It is described it is anti-expansion activating agent the preparation method comprises the following steps:
(1) it takes polyacrylamide 1 ~ 5:10 in mass ratio ~ 15 that water is added to be stirred, the hydroxide of water quality 10 ~ 20% is added Potassium, the acetaldehyde for adding water quality 5 ~ 10% are stirred, and obtain stirring mixture, take stirring mixture 10 ~ 20:3 ~ 7 in mass ratio Amine additive is added to be stirred, is cooled to room temperature, adjusts pH to 7 ~ 7.2, mixture a must be stirred, it is spare；
(2) take 2,4- toluene-2,4-diisocyanate, 3 ~ 5:1 in mass ratio ~ 3 that the stirring of polyoxyethylene polyoxypropylene propylene glycol is added mixed It closes, the dihydromethyl propionic acid of polyoxyethylene polyoxypropylene propylene glycol quality 10 ~ 20% is added, keep the temperature, must stir in 65 ~ 75 DEG C Mixture b；
(3) it takes stirring mixture b 10 ~ 20:3 in mass ratio ~ 7 that triethylamine is added, adds stirring mixture b mass 20 ~ 30% N methyldiethanol amine is stirred, and obtains mixture, takes mixture 5 ~ 10:1 in mass ratio ~ 3 that 17 alkenyl amidos are added bicyclic Imidazoline is stirred, and obtains mixture a, and mixture a is added in the stirring mixture a 5 ~ 9:3 in mass ratio ~ 6 for taking step (1) spare Mixing is to get anti-expansion activating agent.
Amine additive in the step (1) are as follows: take polyethylene polyamine that four ethylene triamines are added than 2 ~ 5:1 ~ 3 in mass ratio Mixing to get.
The row's of helping activating agent the preparation method comprises the following steps: take hexadecyldimethyl benzyl ammonium tertiary amine 3 ~ 8:2 in mass ratio ~ 5 be added EDTA is stirred, and 1 ~ 3 times of EDTA mass of hydrogen peroxide is added dropwise, and control time for adding is 60 ~ 90min, adds EDTA mass 40 ~ 50% water is warming up to 65 ~ 75 DEG C of heat preservations to get the row's of helping activating agent.
The preparation method includes the following steps: to take enzyme additive 1 ~ 3:20 in mass ratio ~ 30:3 ~ 5 that enzymatic protective reagent is added, urges Agent is stirred, and obtains matrix object, takes matrix object 5 ~ 10:100 in mass ratio ~ 150 that fracturing fluid is added, through ultraviolet light irradiation 30 ~ 40s obtains ultraviolet irradiation object, takes ultraviolet irradiation object 100 ~ 200:20 in mass ratio ~ 30:2 ~ 5 that anti-expansion activating agent, the row's of helping work is added Property agent is stirred to get pressure break drag reducer.
The present invention is compared with other methods, and advantageous effects are:
(1) triacylglycerol Acyl- hydrolase is added in the present invention, β-Isosorbide-5-Nitrae mannase is mixed, in soluble starch, palm Activity is kept under the action of the hybrid protections agent such as oil, enzyme activition is carried out under ultraviolet light, and the colloid in fracturing fluid is carried out Key fracture on xanthan molecule chain releases intermolecular mutual winding so that the colloid molecule of larger molecular weight is degraded, and is formed Lesser particle, it is easier to disperse, while Nickel dichloride hexahydrate is added through sodium borohydride reduction, be carried on graphene oxide Catalyst further promotes the fracture of colloid molecular link by catalytic hydrogenation, accelerates viscosity reduction speed, reaches pressure in a short time Split the performance of liquid mobility increase；
(2) anti-expansion activating agent prepared by the present invention is that first had with cationic polyacrylamide, amine additive etc. for raw material There is the substance of ion exchange adsorption, cation exch ange adsorption can occurs with the low price cation etc. on surface of clay in it, neutralize The electrostatic charge of surface of clay reduces the repulsive force between clay layer, so that sand and clay particle are easy to gather simultaneously, makes earth's surface in compression Shape, to reduce the expansion damage to earth's surface, while with 2,4- toluene-2,4-diisocyanate, polyoxyethylene polyoxy propylene propylene glycol Ether etc. is that raw material carries out pre-polymerization, then is blocked with bis-imdazoline substance, so that oil weakens the adsorption capacity of clay particle, is inhaled The crude oil for being attached to surface of clay is easy desorption, and crude oil is made to be not easy to be attached to sand surface, reduces resistance, and reduction rubs with tube wall It wipes, to reduce energy loss；
(3) it is raw material through hydrogen peroxide oxidation that the row's of helping activating agent prepared by the present invention, which is using hexadecyldimethyl benzyl ammonium tertiary amine, obtains oxygen Change the surfactant of ammonium class, clay particle can be bonded together, have because it has positive charge by the tertiary amine group contained Effect inhibits falling off and migrating for clay in fracturing process, while it helps to reduce surface tension when pressure break, increases and connects Feeler, so that capillary force is reduced, so that arriving for the row's of returning performance of fracturing fluid improves；
(4) fracture that enzyme additive, enzymatic protective reagent, catalyst carry out fracturing fluid molecular link is first added in the present invention, is converted to small point Sub- substance increases mobile performance, then reduces the repulsive force between clay layer by anti-expansion activating agent, so that sand and clay particle Being easy to poly- simultaneously makes earth's surface in compression shape, reduces expansion bring earth's surface damage, while reducing frictional resistance, reduce energy loss, It is eventually adding the row's of returning performance that the row's of helping activating agent increases fracturing fluid, improves service performance of the fracturing fluid in fracturing process.
Specific embodiment
Enzyme additive are as follows: take triacylglycerol Acyl- hydrolase 4 ~ 7:3 in mass ratio ~ 5 that β -1,4 mannase is added mixed Close to get.
Enzymatic protective reagent are as follows: according to the mass fraction, take 6 ~ 9 portions of soluble starches, 10 ~ 20 parts of yeast extracts, 3 ~ 6 parts of phosphoric acid hydrogen two Potassium, 0.5 ~ 1 part of ammonium chloride, 0.5 ~ 1.5 part of magnesium sulfate, 0.3 ~ 0.8 part of sodium chloride, 6 ~ 10 parts of palm oils, 2 ~ 3 parts of Tween-80s are mixed Close to get.
Catalyst the preparation method comprises the following steps:
It takes Nickel dichloride hexahydrate 1 ~ 3:10 in mass ratio ~ 30 that ethylene glycol is added, is stirred 20 ~ 40min, adds ethylene glycol matter The sodium borohydride of amount 1 ~ 5%, obtains mixed liquor, takes mixed liquor 50 ~ 60:5 in mass ratio ~ 10 that graphene oxide, ultrasonic disperse 20 is added ~ 30min is warming up to 180 ~ 200 DEG C of 2 ~ 5h of heat preservation, is cooled to room temperature, and filters, and takes suction filtration slag to wash drying through dehydrated alcohol, grinds Be milled it is broken sieve with 100 mesh sieve, collect sieving particle to get catalyst.
Amine additive are as follows: take polyethylene polyamine 2 ~ 5:1 in mass ratio ~ 3 be added four ethylene triamines mixing to get.
It is anti-expansion activating agent the preparation method comprises the following steps:
(1) it takes polyacrylamide 1 ~ 5:10 in mass ratio ~ 15 that water is added, is warming up to 70 ~ 80 DEG C and is stirred 30 ~ 50min, be added The potassium hydroxide of water quality 10 ~ 20% adds the acetaldehyde of water quality 5 ~ 10%, is stirred 1 ~ 3h in 40 ~ 50 DEG C, must stir mixed Object is closed, takes stirring mixture 10 ~ 20:3 in mass ratio ~ 7 that amine additive is added, is warming up to 65 ~ 70 DEG C and is stirred 30 ~ 50min, It is cooled to room temperature, adjusts pH to 7 ~ 7.2, mixture a must be stirred, it is spare；
(2) it takes 2,4- toluene-2,4-diisocyanate, 3 ~ 5:1 in mass ratio ~ 3 that polyoxyethylene polyoxypropylene propylene glycol is added, is warming up to 65 ~ 75 DEG C are stirred 20 ~ 30min, and the dihydromethyl propionic acid of polyoxyethylene polyoxypropylene propylene glycol quality 10 ~ 20% is added, In 65 ~ 75 DEG C of 50 ~ 60min of heat preservation, mixture b must be stirred；
(3) it takes stirring mixture b 10 ~ 20:3 in mass ratio ~ 7 that triethylamine is added, adds stirring mixture b mass 20 ~ 30% N methyldiethanol amine is stirred 1 ~ 3h in 40 ~ 60 DEG C, obtains mixture, and mixture 5 ~ 10:1 in mass ratio ~ 3 is taken to be added ten Seven alkenyl amido bis-imdazolines, are stirred 40 ~ 60min in 50 ~ 60 DEG C, obtain mixture a, the stirring for taking step (1) spare Mixture a mixing is added to get anti-expansion activating agent in mixture a 5 ~ 9:3 in mass ratio ~ 6.
The row's of helping activating agent the preparation method comprises the following steps:
Take hexadecyldimethyl benzyl ammonium tertiary amine 3 ~ 8:2 in mass ratio ~ 5 that EDTA is added, be warming up to 25 ~ 30 DEG C be stirred 30 ~ 40min, the hydrogen peroxide that the mass fraction for being added dropwise 1 ~ 3 times of EDTA mass is 30%, control time for adding is 60 ~ 90min, is added The water of EDTA mass 40 ~ 50% is warming up to 65 ~ 75 DEG C of 2 ~ 4h of heat preservation to get the row's of helping activating agent.
A kind of preparation method of pressure break drag reducer includes the following steps: to take enzyme additive 1 ~ 3:20 in mass ratio ~ 30:3 ~ 5 are added enzymatic protective reagent, catalyst, are stirred 2 ~ 4h in 25 ~ 30 DEG C, obtain matrix object, take matrix object 5 ~ 10:100 in mass ratio ~ 150 are added fracturing fluid, and through wavelength be 253nm, intensity is 24 ~ 52 μ W/cm2Ultraviolet light irradiates 30 ~ 40s, obtains ultraviolet irradiation object, Take ultraviolet irradiation object 100 ~ 200:20 in mass ratio ~ 30:2 ~ 5 that anti-expansion activating agent, the row's of helping activating agent is added, it is stirred 40 ~ 50min is to get pressure break drag reducer.
Embodiment 1
Enzyme additive are as follows: take triacylglycerol Acyl- hydrolase 4:3 in mass ratio be added β-Isosorbide-5-Nitrae mannase mixing to get.
Enzymatic protective reagent are as follows: according to the mass fraction, take 6 portions of soluble starches, 10 parts of yeast extracts, 3 parts of dipotassium hydrogen phosphates, 0.5 Part ammonium chloride, 0.5 part of magnesium sulfate, 0.3 part of sodium chloride, 6 parts of palm oils, 2 parts of Tween-80s mixing to get.
Catalyst the preparation method comprises the following steps:
It takes Nickel dichloride hexahydrate 1:10 in mass ratio that ethylene glycol is added, is stirred 20min, adds the boron of quality of glycol 1% Sodium hydride obtains mixed liquor, takes mixed liquor 50:5 in mass ratio that graphene oxide is added, and ultrasonic disperse 20min is warming up to 180 DEG C 2h is kept the temperature, is cooled to room temperature, is filtered, takes suction filtration slag to wash drying through dehydrated alcohol, grinds and sieve with 100 mesh sieve, collect sieving Particle is to get catalyst.
Amine additive are as follows: take polyethylene polyamine 2:1 in mass ratio be added four ethylene triamines mixing to get.
It is anti-expansion activating agent the preparation method comprises the following steps:
(1) it takes polyacrylamide 1:10 in mass ratio that water is added, is warming up to 70 DEG C and is stirred 30min, water quality 10% is added Potassium hydroxide adds the acetaldehyde of water quality 5%, is stirred 1h in 40 DEG C, obtains stirring mixture, takes stirring mixture by matter Amine additive is added than 10:3 in amount, is warming up to 65 DEG C and is stirred 30min, is cooled to room temperature, and adjusts pH to 7, must be stirred Object a, it is spare；
(2) it takes 2,4- toluene-2,4-diisocyanate 3:1 in mass ratio that polyoxyethylene polyoxypropylene propylene glycol is added, is warming up to 65 DEG C It is stirred 20min, the dihydromethyl propionic acid of polyoxyethylene polyoxypropylene propylene glycol quality 10% is added, is kept the temperature in 65 DEG C 50min must stir mixture b；
(3) it takes stirring mixture b 10:3 in mass ratio that triethylamine is added, adds the N- methyl two of stirring mixture b mass 20% Ethanol amine is stirred 1h in 40 DEG C, obtains mixture, takes mixture 5:1 in mass ratio that 17 alkenyl amido bicyclic imidazos are added Quinoline is stirred 40min in 50 DEG C, obtains mixture a, and the stirring mixture a 5:3 in mass ratio for taking step (1) spare is added mixed Object a mixing is closed to get anti-expansion activating agent.
The row's of helping activating agent the preparation method comprises the following steps:
It takes hexadecyldimethyl benzyl ammonium tertiary amine 3:2 in mass ratio that EDTA is added, is warming up to 25 DEG C and is stirred 30min, EDTA is added dropwise The hydrogen peroxide that the mass fraction that 1 times of quality is 30%, control time for adding are 60min, add the water of EDTA mass 40%, are risen Temperature is to 65 DEG C of heat preservation 2h to get the row's of helping activating agent.
A kind of preparation method of pressure break drag reducer includes the following steps: that enzyme additive 1:20:3 in mass ratio is taken to be added Enzymatic protective reagent, catalyst are stirred 2h in 25 DEG C, obtain matrix object, take matrix object 5:100 in mass ratio that fracturing fluid, warp is added Wavelength is 253nm, intensity is 24 μ W/cm2Ultraviolet light irradiates 30s, obtains ultraviolet irradiation object, takes ultraviolet irradiation object in mass ratio 100: Anti- expansion activating agent, the row's of helping activating agent is added in 20:2, is stirred 40min to get pressure break drag reducer.
Embodiment 2
Enzyme additive are as follows: take triacylglycerol Acyl- hydrolase 5:4 in mass ratio be added β-Isosorbide-5-Nitrae mannase mixing to get.
Enzymatic protective reagent are as follows: according to the mass fraction, take 7 portions of soluble starches, 15 parts of yeast extracts, 4 parts of dipotassium hydrogen phosphates, 0.7 Part ammonium chloride, 1 part of magnesium sulfate, 0.6 part of sodium chloride, 8 parts of palm oils, 2 parts of Tween-80s mixing to get.
Catalyst the preparation method comprises the following steps:
It takes Nickel dichloride hexahydrate 2:20 in mass ratio that ethylene glycol is added, is stirred 30min, adds the boron of quality of glycol 3% Sodium hydride obtains mixed liquor, takes mixed liquor 55:7 in mass ratio that graphene oxide is added, and ultrasonic disperse 25min is warming up to 190 DEG C 3h is kept the temperature, is cooled to room temperature, is filtered, takes suction filtration slag to wash drying through dehydrated alcohol, grinds and sieve with 100 mesh sieve, collect sieving Particle is to get catalyst.
Amine additive are as follows: take polyethylene polyamine 3:2 in mass ratio be added four ethylene triamines mixing to get.
It is anti-expansion activating agent the preparation method comprises the following steps:
(1) it takes polyacrylamide 3:13 in mass ratio that water is added, is warming up to 75 DEG C and is stirred 40min, water quality 15% is added Potassium hydroxide adds the acetaldehyde of water quality 7%, is stirred 2h in 45 DEG C, obtains stirring mixture, takes stirring mixture by matter Amine additive is added than 15:5 in amount, is warming up to 67 DEG C and is stirred 40min, is cooled to room temperature, and adjusts pH to 7.1, must stir mixed Object a is closed, it is spare；
(2) it takes 2,4- toluene-2,4-diisocyanate 4:2 in mass ratio that polyoxyethylene polyoxypropylene propylene glycol is added, is warming up to 70 DEG C It is stirred 25min, the dihydromethyl propionic acid of polyoxyethylene polyoxypropylene propylene glycol quality 15% is added, is kept the temperature in 70 DEG C 55min must stir mixture b；
(3) it takes stirring mixture b 15:5 in mass ratio that triethylamine is added, adds the N- methyl two of stirring mixture b mass 25% Ethanol amine is stirred 2h in 50 DEG C, obtains mixture, takes mixture 7:2 in mass ratio that 17 alkenyl amido bicyclic imidazos are added Quinoline is stirred 50min in 55 DEG C, obtains mixture a, and the stirring mixture a 7:4 in mass ratio for taking step (1) spare is added mixed Object a mixing is closed to get anti-expansion activating agent.
The row's of helping activating agent the preparation method comprises the following steps:
It takes hexadecyldimethyl benzyl ammonium tertiary amine 5:3 in mass ratio that EDTA is added, is warming up to 27 DEG C and is stirred 35min, EDTA is added dropwise The hydrogen peroxide that the mass fraction that 2 times of quality is 30%, control time for adding are 75min, add the water of EDTA mass 45%, are risen Temperature is to 70 DEG C of heat preservation 3h to get the row's of helping activating agent.
A kind of preparation method of pressure break drag reducer includes the following steps: that enzyme additive 2:25:4 in mass ratio is taken to be added Enzymatic protective reagent, catalyst are stirred 3h in 27 DEG C, obtain matrix object, take matrix object 7:125 in mass ratio that fracturing fluid, warp is added Wavelength is 253nm, intensity is 38 μ W/cm2Ultraviolet light irradiates 35s, obtains ultraviolet irradiation object, takes ultraviolet irradiation object in mass ratio 150: Anti- expansion activating agent, the row's of helping activating agent is added in 25:3, is stirred 45min to get pressure break drag reducer.
Embodiment 3
Enzyme additive are as follows: take triacylglycerol Acyl- hydrolase 7:5 in mass ratio be added β-Isosorbide-5-Nitrae mannase mixing to get.
Enzymatic protective reagent are as follows: according to the mass fraction, take 9 portions of soluble starches, 20 parts of yeast extracts, 6 parts of dipotassium hydrogen phosphates, 1 part Ammonium chloride, 1.5 parts of magnesium sulfate, 0.8 part of sodium chloride, 10 parts of palm oils, the mixing of 3 parts of Tween-80s to get.
Catalyst the preparation method comprises the following steps:
It takes Nickel dichloride hexahydrate 3:30 in mass ratio that ethylene glycol is added, is stirred 40min, adds the boron of quality of glycol 5% Sodium hydride obtains mixed liquor, takes mixed liquor 60:10 in mass ratio that graphene oxide is added, and ultrasonic disperse 30min is warming up to 200 DEG C 5h is kept the temperature, is cooled to room temperature, is filtered, takes suction filtration slag to wash drying through dehydrated alcohol, grinds and sieve with 100 mesh sieve, collect sieving Particle is to get catalyst.
Amine additive are as follows: take polyethylene polyamine 5:3 in mass ratio be added four ethylene triamines mixing to get.
It is anti-expansion activating agent the preparation method comprises the following steps:
(1) it takes polyacrylamide 5:15 in mass ratio that water is added, is warming up to 80 DEG C and is stirred 50min, water quality 20% is added Potassium hydroxide adds the acetaldehyde of water quality 10%, is stirred 3h in 50 DEG C, obtains stirring mixture, takes stirring mixture by matter Amine additive is added than 20:7 in amount, is warming up to 70 DEG C and is stirred 50min, is cooled to room temperature, and adjusts pH to 7.2, must stir mixed Object a is closed, it is spare；
(2) it takes 2,4- toluene-2,4-diisocyanate 5:3 in mass ratio that polyoxyethylene polyoxypropylene propylene glycol is added, is warming up to 75 DEG C It is stirred 30min, the dihydromethyl propionic acid of polyoxyethylene polyoxypropylene propylene glycol quality 20% is added, is kept the temperature in 75 DEG C 60min must stir mixture b；
(3) it takes stirring mixture b 20:7 in mass ratio that triethylamine is added, adds the N- methyl two of stirring mixture b mass 30% Ethanol amine is stirred 3h in 60 DEG C, obtains mixture, takes mixture 10:3 in mass ratio that 17 alkenyl amido bicyclic imidazos are added Quinoline is stirred 60min in 60 DEG C, obtains mixture a, and the stirring mixture a 9:6 in mass ratio for taking step (1) spare is added mixed Object a mixing is closed to get anti-expansion activating agent.
The row's of helping activating agent the preparation method comprises the following steps:
It takes hexadecyldimethyl benzyl ammonium tertiary amine 8:5 in mass ratio that EDTA is added, is warming up to 30 DEG C and is stirred 40min, EDTA is added dropwise The hydrogen peroxide that the mass fraction that 3 times of quality is 30%, control time for adding are 90min, add the water of EDTA mass 50%, are risen Temperature is to 75 DEG C of heat preservation 4h to get the row's of helping activating agent.
A kind of preparation method of pressure break drag reducer includes the following steps: that enzyme additive 3:30:5 in mass ratio is taken to be added Enzymatic protective reagent, catalyst are stirred 4h in 30 DEG C, obtain matrix object, take matrix object 10:150 in mass ratio that fracturing fluid, warp is added Wavelength is 253nm, intensity is 52 μ W/cm2Ultraviolet light irradiates 40s, obtains ultraviolet irradiation object, takes ultraviolet irradiation object in mass ratio Anti- expansion activating agent, the row's of helping activating agent is added in 200:30:5, is stirred 50min to get pressure break drag reducer.
Comparative example 1: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking enzyme additive.
Comparative example 2: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking catalyst.
Comparative example 3: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking anti-expansion activating agent.
Comparative example 4: it is essentially identical with the preparation method of embodiment 1, it has only the difference is that lacking the row's of helping activating agent.
Comparative example 5: the pressure break drag reducer of Wuxi City company production.
Embodiment is tested with drag reducer according to NB/T 14003.2-2016 standard with pressure break obtained by comparative example, is surveyed Test result is as shown in table 1.
Table 1:
Test item Embodiment 1 Embodiment 2 Embodiment 3 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5
Viscosity (mPas) 3.5 3.1 3.4 2.7 2.3 2.6 2.5 2.1
Injury rate (%) 3.9 5.2 4.8 7.0 6.5 5.9 6.3 18.7
Resistance-reducing yield (%) 78.6 77.3 77.9 75.4 75.3 73.9 74.4 61.1
It expands inhibiting rate (%) 89.6 87.4 88.2 80.2 80.1 83.4 83.1 41.5
In summary, pressure break drag reducer of the invention is more preferable compared to commercial product effect, and the high nocuity of resistance-reducing yield is low, is worth It widelys popularize.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims (8)

1. a kind of pressure break drag reducer, which is characterized in that including enzyme additive, enzymatic protective reagent, catalyst, anti-expansion activating agent, The row's of helping activating agent.
2. pressure break drag reducer according to claim 1, which is characterized in that the enzyme additive are as follows: take triacylglycerol acyl Base hydrolase 4 ~ 7:3 in mass ratio ~ 5 be added β-Isosorbide-5-Nitrae mannase mixing to get.
3. pressure break drag reducer according to claim 1, which is characterized in that the enzymatic protective reagent are as follows: according to the mass fraction, Take 6 ~ 9 portions of soluble starches, 10 ~ 20 parts of yeast extracts, 3 ~ 6 parts of dipotassium hydrogen phosphates, 0.5 ~ 1 part of ammonium chloride, 0.5 ~ 1.5 part of sulfuric acid Magnesium, 0.3 ~ 0.8 part of sodium chloride, 6 ~ 10 parts of palm oils, the mixing of 2 ~ 3 parts of Tween-80s to get.
4. pressure break drag reducer according to claim 1, which is characterized in that the catalyst the preparation method comprises the following steps:
It takes Nickel dichloride hexahydrate 1 ~ 3:10 in mass ratio ~ 30 that ethylene glycol is added to be stirred, adds quality of glycol 1 ~ 5% Sodium borohydride obtains mixed liquor, takes mixed liquor 50 ~ 60:5 in mass ratio ~ 10 that graphene oxide is added, and ultrasonic disperse is warming up to 180 ~ 200 DEG C of 2 ~ 5h of heat preservation, are cooled to room temperature, and filter, and take suction filtration slag to wash drying through dehydrated alcohol, grind and sieve with 100 mesh sieve, Sieving particle is collected to get catalyst.
5. pressure break drag reducer according to claim 1, which is characterized in that the preparation method of the anti-expansion activating agent Are as follows:
(1) it takes polyacrylamide 1 ~ 5:10 in mass ratio ~ 15 that water is added to be stirred, the hydroxide of water quality 10 ~ 20% is added Potassium, the acetaldehyde for adding water quality 5 ~ 10% are stirred, and obtain stirring mixture, take stirring mixture 10 ~ 20:3 ~ 7 in mass ratio Amine additive is added to be stirred, is cooled to room temperature, adjusts pH to 7 ~ 7.2, mixture a must be stirred, it is spare；
(2) take 2,4- toluene-2,4-diisocyanate, 3 ~ 5:1 in mass ratio ~ 3 that the stirring of polyoxyethylene polyoxypropylene propylene glycol is added mixed It closes, the dihydromethyl propionic acid of polyoxyethylene polyoxypropylene propylene glycol quality 10 ~ 20% is added, keep the temperature, must stir in 65 ~ 75 DEG C Mixture b；
(3) it takes stirring mixture b 10 ~ 20:3 in mass ratio ~ 7 that triethylamine is added, adds stirring mixture b mass 20 ~ 30% N methyldiethanol amine is stirred, and obtains mixture, takes mixture 5 ~ 10:1 in mass ratio ~ 3 that 17 alkenyl amidos are added bicyclic Imidazoline is stirred, and obtains mixture a, and mixture a is added in the stirring mixture a 5 ~ 9:3 in mass ratio ~ 6 for taking step (1) spare Mixing is to get anti-expansion activating agent.
6. pressure break drag reducer according to claim 5, which is characterized in that the amine additive in the step (1) are as follows: take Polyethylene polyamine in mass ratio than 2 ~ 5:1 ~ 3 be added four ethylene triamines mixing to get.
7. pressure break drag reducer according to claim 1, which is characterized in that the row's of helping activating agent the preparation method comprises the following steps: It takes hexadecyldimethyl benzyl ammonium tertiary amine 3 ~ 8:2 in mass ratio ~ 5 that EDTA is added to be stirred, 1 ~ 3 times of EDTA mass of dioxygen is added dropwise Water, control time for adding are 60 ~ 90min, add the water of EDTA mass 40 ~ 50%, are warming up to 65 ~ 75 DEG C of heat preservations to get the row of helping Activating agent.
8. a kind of preparation method of the pressure break drag reducer as described in claim 1 ~ 7 any one, which is characterized in that the preparation Method includes the following steps: to take that enzymatic protective reagent is added in enzyme additive 1 ~ 3:20 in mass ratio ~ 30:3 ~ 5, catalyst is stirred, Matrix object is obtained, takes matrix object 5 ~ 10:100 in mass ratio ~ 150 that fracturing fluid is added, 30 ~ 40s is irradiated through ultraviolet light, obtains ultraviolet irradiation Object takes ultraviolet irradiation object 100 ~ 200:20 in mass ratio ~ anti-expansion activating agent of the addition of 30:2 ~ 5, the row's of helping activating agent to be stirred, Up to pressure break drag reducer.
CN201910416378.2A 2019-05-20 2019-05-20 A kind of pressure break drag reducer and preparation method thereof Withdrawn CN110129021A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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
CN113012845A (en) * 2021-02-26 2021-06-22 国网陕西省电力公司电力科学研究院 Frozen soil grounding resistance-reducing filler

Cited By (2)

* Cited by examiner, † Cited by third party
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
CN113012845A (en) * 2021-02-26 2021-06-22 国网陕西省电力公司电力科学研究院 Frozen soil grounding resistance-reducing filler

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