CN104277818B - Friction-reducing agent of fracturing fluid and its application - Google Patents
Friction-reducing agent of fracturing fluid and its application Download PDFInfo
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- CN104277818B CN104277818B CN201310286141.XA CN201310286141A CN104277818B CN 104277818 B CN104277818 B CN 104277818B CN 201310286141 A CN201310286141 A CN 201310286141A CN 104277818 B CN104277818 B CN 104277818B
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- 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
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- 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
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- 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
- C09K2208/28—Friction or drag reducing additives
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- 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
- C09K2208/30—Viscoelastic surfactants [VES]
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Abstract
The present invention relates to a kind of friction-reducing agent of fracturing fluid and its application, the problem of resistance-reducing yield is low in the prior art is mainly solved.The present invention is by using friction-reducing agent of fracturing fluid, including following components in terms of parts by weight：（1）1 part of Bis-quaternary Ammonium Surfactants；（2）0.01~100 part of alkylamine polyethenoxy ether carboxylate；（3）0.01~100 part of alkylamine APEO；（4）10~10000 parts of water；Technical scheme, the problem is preferably solved, during shale gas exploitation.
Description
Technical field
The present invention relates to friction-reducing agent of fracturing fluid and its application.
Background technology
Shale gas refers to that main body is located in dark-coloured mud shale or high-carbon mud shale, to adsorb or free state is is primarily present
The gas accumulation of mode.According to the shale gas mining resources truth of a matter and Exploitation Potential, shale gas turned into after compact sandstone gas and
The third important resource after coal bed gas.Shale gas reservoir has the characteristics of permeability is extremely low, more than 90% shale gas
Well needs to take the well stimulations such as pressure break to link up intrinsic fracture, and it is exactly the development in crack to realize one of key factor of the economic exploitation
Degree.The U.S. is the country of earliest exploitation shale gas, and China has many similarities with the U.S. on shale gas geological conditions,
Shale gas enrichment geological conditions it is superior, with considerable shale gas development of resources potentiality.Shale gas exploitation technology is main
Including staged fracturing of horizontal well technology, multiple fracturing technique, synchronous fracturing technique and riverfrac treatment technology etc., these technologies are continuous
Improve shale gas well yield.Riverfrac treatment refers to apply adds friction reducer, activating agent, expansion-resisting agent or linear glue in clear water
Deng the fracturing work carried out as working solution.Riverfrac treatment has the advantages that cost is low, it is low to injure and being capable of depth de-plugging.Clearly
Hydraulic pressure, which splits, seldom needs cleaning, is substantially absent from residue injury problem, and can provide longer crack, and by fracturing propping agents
Transport to as far as fracture network.The technology first successfully since use, had had evolved into shale gas exploitation from 1997 in the U.S.
One important means.
The process of oil formation hydraulic fracturing is to use the pump of high-pressure large-displacement on ground, using the principle of liquid pressure transmission, will be had
There is the fracturing fluid of certain viscosity, injected with the pressure of the absorbability more than oil reservoir to oil reservoir, and well cylinder pressure is gradually risen
Height, so as to suppress high pressure in shaft bottom, when tensile strength of this pressure more than the crustal stress near the borehole wall and formation rock, just exists
Nearby stratum produces crack in shaft bottom：Continue to inject the load fluid with proppant, crack extends forward and filled out with proppant, closing well
Crack closure is on proppant afterwards, so as to form filling out with certain physical dimension and high flow conductivity near shaft bottom in stratum
Sand crack, reaches the purpose of increasing yield and injection.The consumption of fracturing fluid is big, and needs the transmission by underground long range, therefore needs
Expend huge energy.In shale gas fracturing process, with the raising of discharge capacity, frictional resistance of the working solution in pipeline will
Exponentially increase, the pump pressure of construction is largely consumed and overcoming on pipeline frictional resistance, practical function is used to press off payzone in payzone
Pressure it is little；Again because frictional resistance increase, discharge capacity are difficult to improve, crack is difficult to extend forward, does not reach the purpose to form seam net.Institute
It is to improve discharge capacity, the effective way of raising fluid efficiency to reduce frictional resistance of the fracturing fluid on pipeline and stratum.The addition of friction reducer
The frictional resistance of fracturing fluid system can be substantially reduced, so under same pump pressure, fracturing fluid can just transmit faster, it is farther,
Energy consumption can be reduced, so as to produce economic benefit.
Water base friction reducer can be divided into according to the action principle of friction reducer by high flexibility macromolecule and viscoelastic surface lives
Two kinds of agent of property.HMW high flexibility linear polymeric is mainly birdsed of the same feather flock together the plants such as compound, hydroxypropyl guar gum including PAM
Glue macromolecule and cellulose family macromolecule.High molecular polymer can freely stretch among fluid, suppress fluid molecule and exist
Molecular collision that turbulent area occurs and the energy loss that produces, reach the purpose of drop resistance.The advantage of high molecular polymer friction reducer
It is that concentration is low, low concentration can just realize drop resistance purpose.Patent US4637418A is reported using acryloyl containing 2-
The high molecular polymer of amido -2- methyl propane sulfonic acids (AMPS) structure is compounded with alcohols, can form a kind of friction-reducing agent of fracturing fluid.But
The shortcoming of this kind of friction reducer is to be easily broken off at high shear rates in macromolecule and make molecular weight and molecular weight, or even loses drop resistance
Function, this degraded be it is permanent, it is irreversible.In addition, another shortcoming of high molecular polymer friction reducer is easy absorption
Onto reservoir wall, change the wetability of reservoir, cause water blocking damage.Viscoelastic surfactant friction reducer mainly includes quaternary ammonium
Salt cationic surfactant, beet alkali ampholytic ionic surface active agent etc..Its mechanism of action is to work as surfactant concentration
When reaching certain value, viscoplasticity network structure is formd under pipeline shear action, in solution, can be by one in turbulent flow whirlpool
Part kinetic energy storage gets up, and reduces whirlpool kinetic energy loss, drop resistance purpose is reached, with the raising of shear rate, this viscoplasticity
Network structure can also strengthen, and improve resistance reducing effect.In terms of the advantage of surfactant friction reducer is mainly reflected in three below：
One is that resistance-reducing performance is excellent；Two be that surfactant will not occur shear degradation and cause drop resistance event resolves；Three be to drop
The surface tension of low fracturing fluid, suppresses water blocking damage.Therefore viscoelastic surfactant friction reducer system has before good application
Scape, is increasingly valued by people.
US4615825 is disclosed using cetyltrimethylammonium hydroxide, salicylic acid, sodium hydroxide according to proper proportion
Compounding can form viscoelastic surfactant；Patent WO116117A1, which is reported, utilizes anion surfactant（Such as oleic acid
Sodium）With cationic surfactant（Such as OTAC）Compound, can be formed with viscous according to a certain percentage
The system of elasticity；Patent CN1177974 describes alkyl betaine and sulfate type or sulfonate type anion surface active
Agent is compounded, and forms a kind of viscoelastic surfactant；US2010167967A1, which is reported, utilizes double type anion surface active
Agent compounds the viscoelastic surfactant to be formed with double-type cationic surfactant.Above-mentioned system all there is certain drop to hinder
Property, resistance reducing effect can also be improved further.
The content of the invention
One of technical problems to be solved by the invention are the fracturing fluid compositions resistance-reducing yields containing friction reducer in the prior art
Low the problem of, there is provided a kind of friction-reducing agent of fracturing fluid suitable for shale gas reservoir.The friction reducer is used for during shale gas exploitation, tool
There is the characteristics of resistance-reducing efficiency is high.
The two of the technical problems to be solved by the invention are to provide a kind of with solving one of technical problem corresponding pressure break
Application of the liquid friction reducer during shale gas exploitation.
To solve one of above-mentioned technical problem, the technical solution adopted by the present invention is as follows：Friction-reducing agent of fracturing fluid, with weight hundred
Divide includes following components than meter：
（1）1 part of Bis-quaternary Ammonium Surfactants；
（2）0.01~100 part of alkylamine polyethenoxy ether carboxylate；
（3）0.01~100 part of alkylamine APEO；
（4）10~10000 parts of water；
Wherein component（1）General molecular formula be：
Wherein component（2）General molecular formula be
Wherein component（3）General molecular formula be
Wherein, R1, R3, R6, R7For C1~C30Alkyl, R2For C2~C6Alkyl, R4, R5For C1~C4Alkyl；Xh-For
Anion, wherein h are the negative charge number of the anion；N >=1, j >=1, and n+j=2~20；M >=1, k >=1, and m+k=2~20；
Wherein M is selected from alkali metal, alkaline-earth metal, NH4, any one in H, i is M positive changes.
R in above-mentioned technical proposal1, R3Preferably C8~C24Alkyl, alkenyl, any one in aryl.R6、R7It is preferred that
For C12~C24Alkyl, alkenyl, any one in aryl.It is preferred that n+j=4~12, m+k=4~12.Xh-H do not limit especially
System, can be 1,2,3,4, until 10000, it can reach the object of the invention；It is preferred that h is 1, now Xh-More preferably F-、
Cl-、Br-、I-、NO3 -、SO3H-、CH3COO-、HO-C6H4-COO-、CH3-C6H4-SO3 -、CH3SO3 -、HO-CH2COO-、CH3CH(OH)
COO-In any one；X when h is 2m-It is preferred that SO4 2-, dicarboxylic acids root, the example of wherein dicarboxylic acids root has oxalate, third
Two acid groups, succinic, glutarate, adipic acid root, tartrate anion etc.；When h is 3, such as citrate；When h is 4, for example
Equal four benzoate anion.Except Xh-Outside for simple anion, polyanion form such as polyphosphate radical, poly- third can also be
Olefin(e) acid root etc..
Preferred R in above-mentioned technical proposal1=R3, and preferably C8~C24Alkyl；Component（2）It is preferred that R6For C12~C24's
Alkyl and one kind or any several in the alkylamine polyethenoxy ether carboxylate of n+j=4~12；Component（3）It is preferred that R7For C12~
C24Alkyl and one kind in the alkylamine APEO of m+k=4~12 or any several.
Friction-reducing agent of fracturing fluid described in above-mentioned technical proposal, is preferably included：（1）1 part of Bis-quaternary Ammonium Surfactants；
（2）0.1~10 part of alkylamine polyethenoxy ether carboxylate；（3）0.1~10 part of alkylamine APEO；（4）10~1000 parts
Water.
Component described in above-mentioned technical proposal（4）Water can be deionized water, river, underground water, seawater etc., for construction
Consideration in terms of convenient, saving water resource, can directly use job site retaining.Adopted in the embodiment of the present invention and comparative example
Water is the rainwater that the block job site cisterns of southwestern oil gas branch company western sichuan region palpus five are collected.
Above-mentioned friction-reducing agent of fracturing fluid preparation method is not particularly limited, as long as will mix equal according to above-mentioned aequum each component
It is even.For example：By the desired amount of Bis-quaternary Ammonium Surfactants, alkylamine polyethenoxy ether carboxylate and alkylamine polyoxy
Vinethene, is dissolved into required water and stirs.
Component described in above-mentioned technical proposal（1）It can be commercially available, it would however also be possible to employ following methods synthesis is made：
For example：Hexadecyldimethyl benzyl ammonium tertiary amine and Isosorbide-5-Nitrae-dibromobutane are dissolved in 200ml ethanol solutions, it is 5wt%'s that concentration, which is added dropwise,
The pH of sodium hydrate aqueous solution control system reacts 6 hours between 9~9.5 under the conditions of 65 DEG C.After reaction terminates, it is evaporated off
Solvent obtains white solid powder C16-4-C16。
Component described in above-mentioned technical proposal（2）It can be commercially available, can also be with reference to United States Patent (USP) US5334756
Method described in embodiment 3 uses the hydroxyl of the aliphatic amine polyoxyethylene ether end of the chain in alkalescent system, in the work of catalyst
Fatty amine polyoxyethylene ether carboxylate is obtained with lower generation oxidation reaction：
Component（3）It is commercially available, such as in the market widely available N, N- dihydroxy ethyl fatty amine is to belong to this hair
Bright k+m=2（Namely k=1 and m=1）Situation.Instant component（3）The situations of k+m=2 can also use existing synthetic method
Obtain, obtained for example with diethanol amine and halogenated hydrocarbons especially bromo hydrocarbon reaction, this is referred to following document and carried out：Ma Junxian
Deng .N, N- dihydroxy ethyls lauryl amine [J] chemical research, 2010 years, 21（6）：34~38.As for k+m ＞'s 2 of the present invention
Situation, those skilled in the art can also use N, and N- dihydroxy ethyls alkylamine is initiator in catalyst（Such as potassium hydroxide）
In the presence of obtained with the desired amount of reacting ethylene oxide.
In order to solve the two of our technical problem, technical scheme is as follows：Any one of one of above-mentioned technical problem
Application of the friction-reducing agent of fracturing fluid during shale gas exploitation.
The present invention is applied to shale gas reservoir reservoir, and western sichuan region five reservoirs of palpus are using the friction-reducing agent of fracturing fluid of the present invention, drop
Resistance rate can reach more than 70%, achieve preferable technique effect, can be applied in shale gas reservoir exploitation production.
Brief description of the drawings
Fig. 1 is the Multifunctional flowing loop instrument schematic diagram for evaluating the resistance reducing effect of friction-reducing agent of fracturing fluid of the present invention.
In Fig. 1,1 is kinetic pump, and 2 be crosslinking agent tank, and 3 be crosslinking agent pump, and 4 be differential pressure pick-up, and 5 be heat exchanger, and 6 are
Base fluid tank, 7 be solution feed pump, and 8 be waste liquid tank, and 9 be vent line.
Embodiment
【Embodiment 1】
1. the preparation of friction-reducing agent of fracturing fluid composition
（1）By hexyl dimethyl tertiary amine（1mol）With 1,4- Bromofumes（0.5mol）It is dissolved in 200ml ethanol solutions
In, the pH for the sodium hydrate aqueous solution control system that concentration is 5wt% is added dropwise between 9~9.5,6 are reacted under the conditions of 65 DEG C small
When.After reaction terminates, solvent is evaporated off and obtains white solid powder C6-2-C6。
（2）In the reactor equipped with agitating device, 100g octyl amine polyoxyethylene is added（3）Ether, 10 grams of sodium acid carbonates
With 1.2 grams of 2,2,6,6- tetramethyl piperidine oxides（TEMPO）, it is added dropwise 400 milliliter 1.9 and rubs in the case of stirring, in 4 hours
You/liter liquor natrii hypochloritis, the temperature of control system is no more than 50 DEG C, and the pH for keeping system is 8~9.After completion of dropping, after
Continuous reaction 1 hour.It is 2 that reaction solution 6M hydrochloric acid, which is acidified to pH, is extracted with ethyl acetate, solvent is evaporated off in oil phase, then uses hydrogen-oxygen
Change sodium water solution neutralization and obtain octyl amine polyoxyethylene（2）Ether carboxylate.
（3）By 1 part of C6-2-C6Bis-quaternary Ammonium Surfactants, 100 parts of octyl amine polyoxyethylene（2）Ether carboxylate and 10
Part octyl amine polyoxyethylene（2）Ether, is dissolved into 10000 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid of homogeneous transparent
Friction reducer, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid composition properties are evaluated
Carry out dropping resistive in friction-reducing agent of fracturing fluid room according to the method in SY/T6376-2008 fracturing fluid general technical specifications
It can evaluate, clear water is loaded into Multifunctional flowing loop instrument（Schematic device is shown in Fig. 1）, determine clear water and pass through stable pressure during pipeline
Poor Δ p1；Stable pressure differential deltap p when above-mentioned friction-reducing agent of fracturing fluid flows through pipeline is determined after the same method2, by formula（1）Meter
Calculate resistance-reducing yield η：
It is 2.5m that discharge capacity is chosen from obtained friction pressure data3When/min fracturing fluid flows through internal diameter for 62mm oil pipes
Resistance-reducing yield value, the results are shown in Table 3.
【Embodiment 2】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C8-3-C8Bis-quaternary Ammonium Surfactants, 2 parts of lauryl amine polyoxyethylene（2）Ether carboxylate and 0.2
Part lauryl amine polyoxyethylene（2）Ether, is dissolved into 300 parts of water, stirs 2 hours, forms the viscoplasticity pressure break of homogeneous transparent
Liquid friction reducer, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 3】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C8-4-C8Bis-quaternary Ammonium Surfactants, 0.5 part of hexadecylamine polyoxyethylene（2）Ether carboxylate and
0.1 part of hexadecylamine polyoxyethylene（2）Ether, is dissolved into 150 parts of water, stirs 2 hours, forms the viscoplasticity pressure of homogeneous transparent
Liquid friction reducer is split, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 4】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C12-2-C12Bis-quaternary Ammonium Surfactants, 3 parts of beef tallow amine polyoxyethylene（2）Ether carboxylate and 0.2 part
Beef tallow amine polyoxyethylene（2）Ether, is dissolved into 400 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid drop resistance of homogeneous transparent
Agent, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 5】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C12-4-C12Bis-quaternary Ammonium Surfactants, 20 parts of lauryl amine polyoxyethylene（2）Ether carboxylate and
0.4 part of lauryl amine polyoxyethylene（2）Ether, is dissolved into 2000 parts of water, stirs 2 hours, forms the viscoplasticity of homogeneous transparent
Friction-reducing agent of fracturing fluid, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 6】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C12-6-C12Bis-quaternary Ammonium Surfactants, 1 part of hexadecylamine polyoxyethylene（2）Ether carboxylate and
0.2 part of hexadecylamine polyoxyethylene（2）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoplasticity pressure of homogeneous transparent
Liquid friction reducer is split, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 7】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-2-C16Bis-quaternary Ammonium Surfactants, 1 part of beef tallow amine polyoxyethylene（4）Ether carboxylate and 0.2 part
Beef tallow amine polyoxyethylene（4）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid drop resistance of homogeneous transparent
Agent, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 8】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 1 part of beef tallow amine polyoxyethylene（6）Ether carboxylate and 0.2 part
Beef tallow amine polyoxyethylene（6）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid drop resistance of homogeneous transparent
Agent, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 9】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 1 part of beef tallow amine polyoxyethylene（8）Ether carboxylate and 0.2 part
Beef tallow amine polyoxyethylene（8）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid drop resistance of homogeneous transparent
Agent, composition is shown in Table 1.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 10】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 1 part of beef tallow amine polyoxyethylene（8）Ether carboxylate and 0.2 part
Beef tallow amine polyoxyethylene（8）Ether, is dissolved into 500 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid drop resistance of homogeneous transparent
Agent, composition is shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 11】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 1 part of beef tallow amine polyoxyethylene（10）Ether carboxylate and 0.2
Part beef tallow amine polyoxyethylene（10）Ether, is dissolved into 1000 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid of homogeneous transparent
Friction reducer, composition is shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 12】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 0.8 part of beef tallow amine polyoxyethylene（4）Ether carboxylate, 0.2
Part hexadecylamine polyoxyethylene（3）Ether carboxylate and 0.2 part of beef tallow amine polyoxyethylene（4）Ether, is dissolved into 220 parts of water, stirs
Mix 2 hours, form the viscoelastic fracturing fluid friction reducer of homogeneous transparent, composition is shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 13】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 0.8 part of beef tallow amine polyoxyethylene（6）Ether carboxylate, 0.2
Part hexadecylamine polyoxyethylene（4）Ether carboxylate and 0.3 part of beef tallow amine polyoxyethylene（6）Ether, is dissolved into 230 parts of water, stirs
Mix 2 hours, form the viscoelastic fracturing fluid friction reducer of homogeneous transparent, composition is shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 14】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 0.8 part of beef tallow amine polyoxyethylene（8）Ether carboxylate, 0.2
Part hexadecylamine polyoxyethylene（8）Ether carboxylate and 0.2 part of beef tallow amine polyoxyethylene（4）Ether, is dissolved into 220 parts of water, stirs
Mix 2 hours, form the viscoelastic fracturing fluid friction reducer of homogeneous transparent, composition is shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 15】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C18-4-C18Bis-quaternary Ammonium Surfactants, 1 part of beef tallow amine polyoxyethylene（2）Ether carboxylate and 0.2 part
Beef tallow amine polyoxyethylene（2）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic fracturing fluid drop resistance of homogeneous transparent
Agent, composition is shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 16】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C18-4-C18Bis-quaternary Ammonium Surfactants, 1 part of docosyl amine polyoxyethylene（2）Ether carboxylate
With 0.2 part of docosyl amine polyoxyethylene（2）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic of homogeneous transparent
Property friction-reducing agent of fracturing fluid, composition be shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 17】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C30-4-C30Bis-quaternary Ammonium Surfactants, 1 part of docosyl amine polyoxyethylene（2）Ether carboxylate
With 0.2 part of docosyl amine polyoxyethylene（2）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic of homogeneous transparent
Property friction-reducing agent of fracturing fluid, composition be shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Embodiment 18】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C30-4-C30Bis-quaternary Ammonium Surfactants, 1 part of docosyl amine polyoxyethylene（2）Ether carboxylate
With 0.2 part of docosyl amine polyoxyethylene（2）Ether, is dissolved into 220 parts of water, stirs 2 hours, forms the viscoelastic of homogeneous transparent
Property friction-reducing agent of fracturing fluid, composition be shown in Table 2.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, compares the results are shown in Table 3 for convenience.
【Comparative example 1】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of hexadecyltrimethylammonium chloride quaternary surfactant, 0.5 part of docosyl amine polyoxyethylene
（2）Ether carboxylate and 0.1 part of docosyl amine polyoxyethylene（2）Ether, is dissolved into 1000 parts of water, stirs 2 hours, forms equal
Even transparent viscoelastic fracturing fluid friction reducer.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, resistance-reducing yield data are 36%.
【Comparative example 2】
1. the preparation of friction-reducing agent of fracturing fluid
By 1 part of C16-4-C16Bis-quaternary Ammonium Surfactants, 2 parts of docosyl polyoxyethylene（2）Ether carboxylate and
0.5 part of docosyl polyoxyethylene（2）Ether, is dissolved into 350 parts of water, stirs 2 hours, forms the viscoplasticity pressure of homogeneous transparent
Split liquid friction reducer.
2. friction-reducing agent of fracturing fluid performance evaluation
Method of evaluating performance be the same as Example 1, resistance-reducing yield data are 43%.
Table 1（It is continued）Embodiment 1-9 fracturing fluids are constituted
Table 1（It is continuous）Embodiment 1-9 fracturing fluids are constituted
Table 2（It is continued）Embodiment 10-18 fracturing fluids are constituted
Table 2（It is continuous）Embodiment 10-18 fracturing fluids are constituted
The embodiment 1-18 fracturing fluid resistance-reducing yields of table 3
| Embodiment | Resistance-reducing yield % |
| 1 | 48 |
| 2 | 52 |
| 3 | 53 |
| 4 | 58 |
| 5 | 61 |
| 6 | 63 |
| 7 | 71 |
| 8 | 78 |
| 9 | 75 |
| 10 | 68 |
| 11 | 65 |
| 12 | 85 |
| 13 | 89 |
| 14 | 83 |
| 15 | 66 |
| 16 | 68 |
| 17 | 65 |
| 18 | 55 |
Claims (8)
1. a kind of friction-reducing agent of fracturing fluid, including following components in terms of parts by weight：
(1) 1 part of Bis-quaternary Ammonium Surfactants；
(2) 0.01~100 parts of alkylamine polyethenoxy ether carboxylates；
(3) 0.01~100 parts of alkylamine APEOs；
(4) 10~10000 parts of water；
The general molecular formula of wherein component (1) is：
The general molecular formula of wherein component (2) is
The general molecular formula of wherein component (3) is
Wherein, R1, R3For C8~C24Alkyl in any one, R6, R7For C12~C24Alkyl, any one in alkenyl；
R2For C2~C6Alkylidene, R4, R5For C1~C4Alkyl；Xh-For anion, wherein h is the negative charge number of the anion；n≥
1, j >=1, and n+j=2~20；M >=1, k >=1, and m+k=2~20；Wherein M is selected from alkali metal, alkaline-earth metal, NH4, appoint in H
Meaning is a kind of, and i is M positive changes.
2. friction-reducing agent of fracturing fluid according to claim 1, it is characterised in that n+j=4~12, m+k=4~12.
3. friction-reducing agent of fracturing fluid according to claim 1, it is characterised in that wherein X in component (1) general molecular formulah-For F-、Cl-、
Br-、I-、NO3 -、SO3H-、CH3COO-、HO-C6H4-COO-、CH3-C6H4-SO3 -、CH3SO3 -、HO-CH2COO-、CH3CH(OH)COO-
In any one.
4. friction-reducing agent of fracturing fluid according to claim 1, it is characterised in that R1=R3。
5. friction-reducing agent of fracturing fluid according to claim 1, it is characterised in that component (2) is selected from R6For C12~C24Alkyl,
Alkenyl and one kind or any several in the alkylamine polyethenoxy ether carboxylate of n+j=4~12.
6. friction-reducing agent of fracturing fluid according to claim 1, it is characterised in that component (3) is selected from R7For C12~C24Alkyl,
Alkenyl and one kind or any several in the alkylamine APEO of m+k=4~12.
7. friction-reducing agent of fracturing fluid according to claim 1, it is characterised in that including：
(1) 1 part of Bis-quaternary Ammonium Surfactants；
(2) 0.1~10 parts of alkylamine polyethenoxy ether carboxylates；
(3) 0.1~10 parts of alkylamine APEOs；
(4) 10~1000 parts of water.
8. application of the friction-reducing agent of fracturing fluid any one of claim 1 to 7 during shale gas exploitation.
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| CN110776901A (en) * | 2019-03-07 | 2020-02-11 | 北京盛昌百年石油科技有限公司 | Environment-friendly drag reducer for fracturing and preparation method thereof |
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