CN105315983B - Aqueous fracturing fluid drag reducer and its preparation method and application - Google Patents
Aqueous fracturing fluid drag reducer and its preparation method and application Download PDFInfo
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Abstract
The present invention relates to a kind of aqueous fracturing fluid drag reducers and its preparation method and application, mainly solve the problems, such as that surfactant drag reducer resistance-reducing yield in the prior art is low, the present invention is by using the cationic surfactant and acylate described in including formula (I)；Wherein, R is saturation or unsaturated aliphatic base containing 8~24 carbon atoms, R1、R2And R6It is independently selected from the alkyl of 1~4 carbon atom or the hydroxyalkyl of 2~4 carbon atoms, R3、R4And R5The alkylidene of 1~6 carbon atom is independently selected from, D is one kind in halide ion；Wherein, the weight ratio of the cationic surfactant and the acylate is 1:(1~50)；The acylate is selected from the technical solution of at least one of fat carboxylate, Fatty sulphonates, fragrant hydrochlorate, preferably solves the technical problem, available in shale gas pressure break production practice.
Description
Technical field
The present invention relates to a kind of aqueous fracturing fluid drag reducers and its preparation method and application.
Background technology
Shale gas reservoir generally belongs to super low-porosity and low-permeability reservoir, and the permeability of permeability ratio Clastic Rock Gas Reservoirs is also low
The 2-3 order of magnitude, for such gas reservoir, fracturing reform is the important means of exploration and development.Suitable for exploiting hypotonic, low hole very
The fracturing technique for advising reservoir has obtained more and more applications in shale gas reservoir exploitation.However, injection water by pipeline and
The obstruction of shear stress is flowed in lithosphere, fluid displacement can substantially reduce.It effectively reduces the frictional resistance of liquid and can reduce and pair set
Standby demand, reduces construction cost to a certain extent.Therefore, it in order to lower frictional resistance, generally requires and adds in slippery water fracturing fluid
Enter drag reduction agent addition agent.
Earliest water-based drag reducer is polymer, but viscosity of solution polymer product itself is big, and polymer content is low, molten
It is long to solve the time, unstable chemcial property, therefore brings to transport and use great constant.It is crucial that polymer subtracts
Resist polymer drag reducing agent is generally linear molecule, and molecular weight is more than 500,000, but in the effect of the factors such as Strong shear power, high temperature
Under, backbone will be destroyed, and can not repair.Surfactant drag reducer therefore, it is possible to form vermiculate glues draws
Extensive concern is played.And surfactant can effectively reduce the contact angle between injection fluid and reservoir fluid, rock
And surface tension, the capillary force that drag reduction water flows in shale reservoir is reduced, and then improve fracturing effect.
Surfactant vermiculate glues (is less than 10 under low Reynolds number4) by it is a kind of it is disorderly arranged in a manner of be present in
In aqueous solution, to flowing shearing almost without effect.(it is more than 10 under high Reynolds number4), aligning for micella results in
Obviously drag-reduction effect.And (it is more than 10 under higher Reynolds number5), shearing force destroys vermiculate glues,
Drag-reduction effect quickly reduces.The Reynolds number range that surfactant system has apparent drag-reduction effect depends on several factors,
Such as：Total concentration, proportioning, surfactant hydrophobic chain length etc..
Lot of documents shows that cationic surfactant and organic salt mixed system easily form vermiculate glues.Wherein
Some systems effectively apply to (U.S. Patent number in the heat exchange applications of pipeline：4705860, title, quaternary
Ammonium salts and their use as drag reduction agents), but most of cationic surface is lived
Property agent/organic salt system, for example, cetyl trimethylammonium bromide/sodium salicylate system under high Reynolds number easily from worm
Shape micella englobement micella, loses resistance reducing performance.In order to have resistance reducing performance under high Reynolds number, surfactant is needed
Drag reducer has higher concentration, commonly reaches 2000ppmw.We have synthesized oligomerization cationic surfactant now, find
The surfactant of the type and the compounding of organic salt can effectively reduce the concentration of drag reduction agent prescription, achieve good drag reduction
Effect.Oligomerization surfactant be by linking group by two or more single-stranded surfactant structures by chemical bond be connected and
Into surfactant molecule.According to head base in surfactant molecule and hydrophobic chain quantity, oligomerization surfactant usually may be used
To be divided into dimerization, trimerization, four is poly- or even the types such as more high polymerization degree.Present invention employs four polycation surfactants and
The complex composition of organic salt.
Invention content
The first technical problem to be solved by the present invention is surfactant drag reducer resistance-reducing yield in the prior art
The problem of low, a kind of new aqueous fracturing fluid drag reducer is provided, which is used to have resistance-reducing yield height in aqueous fracturing fluid, make
With concentration it is low the advantages of.
The second technical problem to be solved by the present invention is one of above-mentioned technical problem aqueous fracturing fluid drag reducer
Preparation method.
The third technical problem to be solved by the present invention is that one of above-mentioned technical problem aqueous fracturing fluid drag reducer exists
Application in fracturing fluid.
One of in order to solve the above-mentioned technical problem, technical scheme is as follows：Aqueous fracturing fluid drag reducing agent composition,
Including the cationic surfactant and acylate described in formula (I)；Wherein, R is the saturation containing 8~24 carbon atoms or not
Radical of saturated aliphatic base, R1、R2And R6It is independently selected from the alkyl of 1~4 carbon atom or the hydroxyalkyl of 2~4 carbon atoms, R3、R4With
R5It is the alkylidene of 1~6 carbon atom, D is one kind in halide ion；
Wherein, the weight ratio of the cationic surfactant and the acylate is 1:(1~50)；The organic acid
Salt is selected from least one of fat carboxylate, Fatty sulphonates, fragrant hydrochlorate.
In above-mentioned technical proposal, R1、R2And R6Independent preferably methyl, ethyl or propyl.
In above-mentioned technical proposal, R3、R4And R5The alkylidene of independent preferably 2~3 carbon atoms, R3、R4And R5It is further excellent
It is selected as the alkylidene of 2~3 identical carbon atoms.
In above-mentioned technical proposal, the fat carboxylate is preferably aliphatic alcohol polyethenoxy ether carboxylate, fatty amine polyoxy
At least one of ethylene ether carboxylate；More preferably hydrocarbon alcohol polyethenoxy ether carboxylate, alkylamine polyoxyethylene ether carboxylic acid
At least one of salt；Further preferably C12~C18Hydrocarbon alcohol polyethenoxy ether carboxylate, C12~C18Alkylamine polyoxyethylene
The adduction number of at least one of ether carboxylate, wherein EO segments is preferably 1~20；Most preferably C12~C18Hydrocarbon alcohol polyoxy
Vinethene carboxylic acid potassium, C12~C18At least one of alkylamine polyoxyethylene ether carboxylic acid potassium, the adduction number of wherein EO segments is preferred
It is 2~10.The Fatty sulphonates are preferably in aliphatic alcohol polyoxyethylene sulfonate, aliphatic amine polyoxyethylene ether sulfonate
It is at least one；More preferably at least one of hydrocarbon alcohol polyethenoxy ether sulphonate, alkylamine polyethenoxy ether sulphonate；Into
One step is preferably C12~C18Hydrocarbon alcohol polyethenoxy ether sulphonate, C12~C18In alkylamine polyethenoxy ether sulphonate at least
The adduction number of one kind, wherein EO segments is preferably 1~20；Most preferably C12~C18Hydrocarbon alcohol polyoxyethylene ether potassium sulfonate, C12~
C18The adduction number of at least one of alkylamine polyoxyethylene ether potassium sulfonate, wherein EO segments is preferably 2~10.
In above-mentioned technical proposal, in the fragrant hydrochlorate shown in the fragrance hydrochlorate preferred formula (II) or formula (III) extremely
Few one kind；
Wherein, R7It preferably is selected from-SO3M or-COOW, M and W independent preferably H, alkali metal or NH4；X is selected from H or C1~C4
Alkyl；Y and Z is independently preferably derived from H, fluorine, chlorine, bromine, iodine, OH；R7Further preferably-COOW.
In above-mentioned technical proposal, the preferred benzoate of the fragrance hydrochlorate, benzene sulfonate, halogen benzoic acid salt, halogeno-benzene
At least one of formates, hydroxyl substituted benzoic acid salt or hydroxyl substituted benzenesulfonic acid salt.
In above-mentioned technical proposal, optimal technical solution is：Aqueous fracturing fluid drag reducer, including described in formula (I) sun from
Sub- surfactant and fragrant hydrochlorate；The fragrance hydrochlorate is selected from formula (II) or fragrant hydrochlorate shown in formula (III) extremely
Few one kind；Wherein, R is saturation or unsaturated aliphatic base containing 12~24 carbon atoms, more preferably 12~24 carbon atoms
Aliphatic group, the alkyl or alkylene of further preferably 12~24 carbon atoms；R1、R2And R6It is independently selected from 1~4 carbon
The hydroxyalkyl of the alkyl of atom or 2~4 carbon atoms, R3、R4And R5It is the alkylidene of 2~3 carbon atoms, D is chlorion,
Bromide ion or iodide ion；R7H, alkali metal or NH are selected from for-COOW, W4；X is selected from H or C1~C4Alkyl；In Y and Z only
One is derived from H, fluorine, chlorine, bromine, iodine for another in OH, Y and Z.Highest drag reducing efficiency can maintain more than 80% at this time.
In above-mentioned technical proposal, the aqueous fracturing fluid drag reducer can also include water, wherein the cationic surface is lived
Property agent and the mass-volume concentration of acylate (such as fragrant hydrochlorate) be preferably 0.1~10kg/m3。
The aqueous fracturing fluid drag reducer of the present invention can be supplied in solid form respectively for ease of storage and transportation, and scene is added respectively
It is used into fracturing fluid；It can also first be supplied in the form of solid mixture after mixing, scene is added in fracturing fluid and uses；
For ease of onsite application can also aqueous solution form supply.The aqueous fracturing fluid drag reducer of the present invention can also include this field
Common other components, such as clay stabilizer, fungicide, antisludging agent, pH adjusting agent, anti-fluid loss agents, demulsifier etc..
When the present invention uses aqueous solution form, the form of concentrated solution may be used, dilute when using, Huo Zheyou
Choosing is directly made into the concentration of onsite application, and the preferably described cationic surfactant of concentration of onsite application and fragrant hydrochlorate amount to
Account for 0.1~10kg/m of the fracturing fluid3。
In order to solve the above-mentioned technical problem two, technical scheme is as follows：One of above-mentioned technical problem skill
The preparation method of aqueous fracturing fluid drag reducer described in any technical solution, includes the following steps in art scheme：
A) preparation of the cationic surfactant
The compound that chemical formula by 4~8 times of molal quantitys is R-D is (R with structural formula1R2)NR3N(R1)R4N(R1)R5N
(R1R6) four reactive tertiary amines the cationic surfactant is made；
B) preparation of the aqueous fracturing fluid drag reducer by cationic surfactant obtained in step a) with it is described
Acylate is uniformly mixed in the ratio, obtains the aqueous fracturing fluid drag reducer.
In above-mentioned technical proposal, compound and structural formula that the chemical formula is R-D are (R1R2)NR3N(R1)R4N(R1)
R5N(R1R6) four tertiary amines reaction preferably in anhydrous ethanol medium back flow reaction, cationic surfactant obtained it is preferred
It recrystallizes and is made in anhydrous ethanol medium；Four tertiary amines for example can be N, N, N ', N ", N " ', three second of N " '-hexamethyl
Alkene tetramine, N, N, N ', N ", N " ', three propylene tetramine of N " '-hexamethyl, N, N, N ', N ", N " ', three hexene tetramine of N " '-hexamethyl
Deng；It is described be uniformly mixed can further preferably by cationic surfactant and the acylate in the ratio and
Water is uniformly mixed, and can be further uniformly mixed with water as paste or aqueous solution form.
In order to solve the above-mentioned technical problem three, technical scheme is as follows：One of above-mentioned technical problem skill
Application of any one of the art scheme aqueous fracturing fluid drag reducer in fracturing fluid.
In above-mentioned technical proposal, preferred embodiment is：The fracturing fluid is preferably aqueous fracturing fluid；The application uses temperature
Preferably 10~85 DEG C of degree；The concentration that the cationic surfactant and acylate are amounted in fracturing fluid is preferably 0.1
~10kg/m3, the preferably above-mentioned fragrant hydrochlorate of the acylate.
The fracturing fluid drag reducer of the present invention is used in fracturing fluid, and the water quality of fracturing fluid is not specially required, can be made
The water quality well-known to those skilled in the art such as ionized water, clear water, river water, sewage, salinity water, water flooding.
The assay method of the resistance-reducing yield of the present composition is as follows：The drag reducing efficiency of fracturing fluid drag reducer is rubbed using flow circuits
Resistance test system is tested to obtain.Experiment test group water solution a length of 3 meters of internal diameters be in 1/2 inch of stainless pipe with
The pressure difference variation of change in flow.When carrying out turbulent flow drag reduction flowing research, the Fanning friction factor of turbulent flow drag reduction flowing is measured
After the result of variations of Reynolds number, the big of drag reducing efficiency is obtained by being compared with the Fanning friction factor of the water under identical Reynolds number
It is small.Drag reducing efficiency DR formula are as follows, obtained by pressure difference data：
In formula：Δ P is prepared drag reducer fluid by testing pressure difference during pipeline, KPa；
ΔPsIt is clear water by testing pressure difference during pipeline, KPa.
Reynolds number Re is the parameter definition by streaming flow：
μ is solvent viscosity, and ρ is the density of fluid, and Q is fluid flow, and D is internal diameter of the pipeline, thus Reynolds number and flow into
Proportional relation.Relation curve of the data finally obtained between drag reducing efficiency DR and Reynolds number.
Drag reducing efficiency size when fixed Reynolds number Re is taken in the present invention is 20000 is subtracting for the aqueous fracturing fluid drag reducer
Resistance rate.
The key problem in technology of the present invention is to have synthesized the oligomerization cation form with four hydrophobic chains and four cation groups
Face activating agent and acylate combination, especially combine with fragrant hydrochlorate, are prepared for efficient fracturing fluid drag reducer, using this
The aqueous fracturing fluid drag reducer of invention is used in fracturing fluid, especially aqueous fracturing fluid, and in 10~85 DEG C of temperature in use, use is dense
Spend 0.1~10kg/m3Under conditions of, resistance-reducing yield obtains preferable technique effect up to 80%.
Below by specification drawings and specific embodiments, the present invention is described in detail.
Specific embodiment
In mass spectrometric data in specific embodiment, M-Br and M-Cl represent target molecule removing bromine atoms or target respectively
Molecule removes chlorine atom.
【Comparative example 1】
The quality such as cetyl trimethylammonium bromide and sodium salicylate compound, and are dissolved into the drop resistance that 2000ppmw is made in water
Agent aqueous solution precipitates at a temperature of 15 DEG C.The drag reducing efficiency under different temperatures is tested, highest drag reducing efficiency can be maintained at 65%.
【Comparative example 2】
By 2.0mol bromododecanes, 0.5mol N, N, N ', N ", N " ', N " '-hexamethyl triethylene tetramine, 300g are anhydrous
Ethyl alcohol be added to together equipped with sealing machine stirring, thermometer, condenser west tube, receiving flask 2000ml reaction bulbs in, oil bath
100 DEG C of temperature, reaction reflux 72h.Obtained product cools down is recrystallized to give white solid in absolute ethyl alcohol, passes through matter
Spectrum is confirmed as four polycation surfactant 12-2-12-2-12-2-12 [MS-ESI (m/z) of target product:Theoretical value,
1226；Actual value, 226.5 (M/4-Br)].The quality such as 12-2-12-2-12-2-12 and lauryl sodium sulfate compound, and are made
The aqueous solution of 1000ppmw, without drag-reduction effect.
【Embodiment 1】
Four polycation surfactant 12-2-12-2-12-2-12 of product and benzene sulfonic acid sodium salt that comparative example 2 is obtained etc.
Mass ratio mixes.The clear solution that 1000ppmw is made in water, the drag reducing efficiency at 25 DEG C of test are dissolved into, drag reducing efficiency is maintained at
60%.
【Embodiment 2】
Four polycation surfactant 12-2-12-2-12-2-12 of product and sodium benzoate that comparative example 2 is obtained etc.
Mass ratio mixes.The clear solution that 1000ppmw is made in water, the drag reducing efficiency at 25 DEG C of test are dissolved into, drag reducing efficiency is maintained at
75%.
【Embodiment 3】
Four polycation surfactant 12-2-12-2-12-2-12 of product and sodium salicylate that comparative example 2 is obtained etc.
Mass ratio mixes.The clear solution that 1000ppmw is made in water, the drag reducing efficiency at 25 DEG C of test are dissolved into, drag reducing efficiency is maintained at
80%.
【Embodiment 4】
By 2.0mol bromododecanes, 0.5mol N, N, N ', N ", N " ', three propylene tetramine of N " '-hexamethyl, 300g are anhydrous
Ethyl alcohol be added to together equipped with sealing machine stirring, thermometer, condenser west tube, receiving flask 2000ml reaction bulbs in, oil bath
100 DEG C of temperature, reaction reflux 72h.Obtained product cools down is recrystallized to give white solid in absolute ethyl alcohol, passes through matter
Spectrum is confirmed as four polycation surfactant 12-3-12-3-12-3-12 [MS-ESI (m/z) of target product:Theoretical value,
1268；Actual value, 237 (M/4-Br)].The mass ratioes such as 12-3-12-3-12-3-12 and sodium salicylate mix.It is dissolved into water and makes
The clear solution of 1000ppmw, the drag reducing efficiency at 25 DEG C of test are obtained, drag reducing efficiency is maintained at 80%.
【Embodiment 5】
By 2.0mol bromotetradecanes, 0.5mol N, N, N ', N ", N " ', three propylene tetramine of N " '-hexamethyl, 300g are anhydrous
Ethyl alcohol be added to together equipped with sealing machine stirring, thermometer, condenser west tube, receiving flask 2000ml reaction bulbs in, oil bath
100 DEG C of temperature, reaction reflux 72h.Obtained product cools down is recrystallized to give white solid in absolute ethyl alcohol, passes through matter
Spectrum is confirmed as four polycation surfactant 14-3-14-3-14-3-14 [MS-ESI (m/z) of target product:Theoretical value,
1380；Actual value, 265 (M/4-Br)].The mass ratioes such as 14-3-14-3-14-3-14 and sodium salicylate mix.It is dissolved into water and makes
The clear solution of 1000ppmw, the drag reducing efficiency at 25 DEG C of test are obtained, drag reducing efficiency is maintained at 80%.
【Embodiment 6】
By 2.0mol bromohexadecanes, 0.5mol N, N, N ', N ", N " ', three propylene tetramine of N " '-hexamethyl, 300g are anhydrous
Ethyl alcohol be added to together equipped with sealing machine stirring, thermometer, condenser west tube, receiving flask 2000ml reaction bulbs in, oil bath
100 DEG C of temperature, reaction reflux 72h.Obtained product cools down is recrystallized to give white solid in absolute ethyl alcohol, passes through matter
Spectrum is confirmed as four polycation surfactant 16-3-16-3-16-3-16 [MS-ESI (m/z) of target product:Theoretical value,
1492；Actual value, 293 (M/4-Br)].The mass ratioes such as 16-3-16-3-16-3-16 and sodium salicylate mix.It is dissolved into water and makes
The clear solution of 1000ppmw, the drag reducing efficiency at 25 DEG C of test are obtained, drag reducing efficiency is maintained at 80%.
【Embodiment 7】
1mol oleyl alcohol, 0.02mol n,N-Dimethylformamide are added in together in 1000ml reaction bulbs, 40 DEG C of oil bath temperature,
1.1mol 146g thionyl chlorides are gradually added into, and 1.5h is dripped off, and continue the 2h that flows back later, and 80 DEG C of oil bath temperature of heating continues to flow back
2h.Oil pump rotates to obtain sterling chloro octadecylene hydrocarbon 0.95mol.There is no reactant oleyl alcohol in infrared display product.By 2.0mol
Chloro octadecylene hydrocarbon, 0.5mol N, N, N ', N ", N " ', three propylene tetramine of N " '-hexamethyl, 300g absolute ethyl alcohols are added to together
Equipped with sealing machine stirring, thermometer, condenser west tube, receiving flask 2000ml reaction bulbs in, 100 DEG C of oil bath temperature, reaction
Flow back 72h.The obtained colod-application n-hexane washing of product, obtains white solid precipitation, it is poly- to be confirmed as target product four by mass spectrum
Cationic surfactant 18-3-18-3-18-3-18 [MS-ESI (m/z):Theoretical value, 1418；Actual value, 319 (M/4-
Cl)].The mass ratioes such as 18-3-18-3-18-3-18 and sodium salicylate mix.The clarification for being dissolved into obtained 1000ppmw in water is molten
Liquid, the drag reducing efficiency at 25 DEG C of test, drag reducing efficiency are maintained at 80%.
【Embodiment 8】
Four polycation surfactant 12-2-12-2-12-2-12 of product and sodium salicylate that comparative example 2 is obtained etc.
Mass ratio mixes.The clear solution that 1000ppmw is made in water, the drag reducing efficiency at 10 DEG C of test are dissolved into, drag reducing efficiency is maintained at
80%.
【Embodiment 9】
Four polycation surfactant 12-2-12-2-12-2-12 of product and sodium salicylate that comparative example 2 is obtained etc.
Mass ratio mixes.The clear solution that 5000ppmw is made in water, the drag reducing efficiency at 85 DEG C of test are dissolved into, drag reducing efficiency is maintained at
50%.
Table 1
| Composition | Highest drag reducing efficiency | |
| Comparative example 1 | Cetyl trimethylammonium bromide, sodium salicylate | 65% (25 DEG C) |
| Comparative example 2 | 12-2-12-2-12-2-12, lauryl sodium sulfate | 0(25℃) |
| Embodiment 1 | 12-2-12-2-12-2-12 and benzene sulfonic acid sodium salt | 66% (25 DEG C) |
| Embodiment 2 | 12-2-12-2-12-2-12 and sodium benzoate | 76% (25 DEG C) |
| Embodiment 3 | 12-2-12-2-12-2-12 and sodium salicylate | 81% (25 DEG C) |
| Embodiment 4 | 12-3-12-3-12-3-12 and sodium salicylate | 82% (25 DEG C) |
| Embodiment 5 | 14-3-14-3-14-3-14 and sodium salicylate | 82% (25 DEG C) |
| Embodiment 6 | 16-3-16-3-16-3-16 and sodium salicylate | 83% (25 DEG C) |
| Embodiment 7 | 18-3-18-3-18-3-18 and sodium salicylate | 83% (25 DEG C) |
| Embodiment 8 | 12-2-12-2-12-2-12 and sodium salicylate | 81% (10 DEG C) |
| Embodiment 9 | 12-2-12-2-12-2-12 and sodium salicylate | 65% (85 DEG C) |
Claims (8)
1. aqueous fracturing fluid drag reducer, including the cationic surfactant described in formula (I) and selected from formula (II) or formula (III)
Shown fragrant phosphate compounds；Wherein, R is saturation or unsaturated aliphatic base containing 8~24 carbon atoms, R1、R2And R6Solely
The hydroxyalkyl of vertical alkyl or 2~4 carbon atoms selected from 1~4 carbon atom, R3、R4And R5It is independently selected from 1~6 carbon atom
Alkylidene, D be halide ion in one kind；
Wherein, R7Selected from-SO3M or-COOW, M and W are independently selected from H, alkali metal or NH4 +；X is selected from H or C1~C4Alkane
Base；Y and Z is independently derived from H, fluorine, chlorine, bromine, iodine, OH；
Wherein, the weight ratio of the cationic surfactant and the fragrant phosphate compounds is 1:1~50.
2. aqueous fracturing fluid drag reducer according to claim 1, it is characterized in that R1、R2And R6Be independently selected from methyl, ethyl or
Propyl.
3. aqueous fracturing fluid drag reducer according to claim 1, it is characterized in that R3、R4And R5It is independently selected from 2~6 carbon originals
The alkylidene of son.
4. aqueous fracturing fluid drag reducer according to claim 1, it is characterized in that the fragrance hydrochlorate is selected from benzoate, benzene
At least one of sulfonate, halogen benzoic acid salt, hydroxyl substituted benzoic acid salt or hydroxyl substituted benzenesulfonic acid salt.
5. the preparation method of the aqueous fracturing fluid drag reducer described in one of Claims 1 to 4, includes the following steps：
A) preparation of the cationic surfactant
The compound that chemical formula by 4~8 times of molal quantitys is R-D is (R with structural formula1R2)NR3N(R1)R4N(R1)R5N
(R1R6) four reactive tertiary amines the cationic surfactant is made；
B) preparation of the aqueous fracturing fluid drag reducer
Cationic surfactant obtained in step a) and the fragrant phosphate compounds are uniformly mixed in the ratio,
Obtain the aqueous fracturing fluid drag reducer.
6. application of the aqueous fracturing fluid drag reducer in fracturing fluid described in any one of claims 1 to 4.
7. according to application of the aqueous fracturing fluid drag reducer described in claim 6 in fracturing fluid, it is characterized in that the pressure break
Liquid includes water, wherein the cationic surfactant and acylate total account for a concentration of 0.1~10kg/ of the fracturing fluid
m3。
8. application of the aqueous fracturing fluid drag reducer according to claim 6 in fracturing fluid, it is characterized in that the application
Temperature is 10~85 DEG C.
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| WO2001018147A1 (en) * | 1999-09-07 | 2001-03-15 | Crompton Corporation | Quaternary ammonium salts as thickening agents for aqueous systems |
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|---|---|---|---|---|
| WO2001018147A1 (en) * | 1999-09-07 | 2001-03-15 | Crompton Corporation | Quaternary ammonium salts as thickening agents for aqueous systems |
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| m-s-m-s-m型三联新型季铵盐表面活性剂的合成与性能测定;郑成等;《广东化工》;20080125;5-9 * |
| 清洁压裂液研制与应用;张海龙;《中国优秀硕士论文全文数据库 工程科技I辑》;20100415;22-26 * |
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