CN107501470A - A kind of acid liquid drag reducer and preparation method thereof - Google Patents
A kind of acid liquid drag reducer and preparation method thereof Download PDFInfo
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- CN107501470A CN107501470A CN201710748262.XA CN201710748262A CN107501470A CN 107501470 A CN107501470 A CN 107501470A CN 201710748262 A CN201710748262 A CN 201710748262A CN 107501470 A CN107501470 A CN 107501470A
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- Prior art keywords
- drag reducer
- preparation
- monomer
- acrylamide
- acid
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/58—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine
- C08F220/585—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide containing oxygen in addition to the carbonamido oxygen, e.g. N-methylolacrylamide, N-(meth)acryloylmorpholine and containing other heteroatoms, e.g. 2-acrylamido-2-methylpropane sulfonic acid [AMPS]
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Polymerisation Methods In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of acid liquid drag reducer and preparation method thereof.The present invention is to weigh the methyl propane sulfonic acid of 2 acrylamido of monomer 2 in beaker, adds deionized water dissolving, then adds piece alkali, system pH is adjusted into 8 10；Add monomeric acrylamide and long chain cation monomer, in the case of logical inert gas, stirring, regulation bath temperature react to add initiator after initiation reaction temperature, transparent blob of viscose is made, finally by transparent blob of viscose craft stripping and slicing, dry, crush, and 100 mesh sieves point, powdered acid solution drag reducer is made.The synthetic method of the present invention is simple, and raw material are easy to get, and reduce cost；Acid solution drag reducer resistance-reducing yield produced by the present invention is up to 65%, reduces pump pressure, reduces line losses, extends the service life of equipment；The temperature tolerance and compatibility of acid solution drag reducer are good, while also have certain slow effect.
Description
Technical field
The present invention relates to field of oilfield chemistry, more particularly to a kind of acid liquid drag reducer and preparation method thereof.
Background technology
In fracture acidizing engineering, with the increase of discharge capacity, frictional resistance of the working solution in pipeline will exponentially increase
Add, reduce infusion efficiency；Meanwhile frictional resistance increases, discharge capacity is difficult to improve, and crack is difficult to extend forward, does not reach deep acidizing
Purpose, acidifying do not reach ideal effect.So it is to improve discharge capacity, improve fluid efficiency and reach deep acidification to reduce frictional resistance
Effective way, in addition, reducing frictional resistance, be advantageous to extend the service life of the equipment such as Construction traffic, pipeline and downhole tool.Cause
This, the application of the use of additive, particularly drag reducer and demand are more and more in acid fracturing.
The polymer of many natural polymer amounts loses resistance-reducing performance due to being degraded in acid, therefore what is used earliest subtracts
Resist is mainly some soluble line style synthetic macromolecular compounds.The external research early stage on acid drag reducer is mainly
Based on non-ionic polyacrylamide, G-11, G-15 series of such as BJ companies, the FMA-3 of locking Knoll Inc.；Haliburton
The FR-18 of company, belongs to PAM class acid drag reducers, but PAM birds of the same feather flock together compound acid resistance it is poor.Domestic the mid-80 Sichuan
The serial acid solution drag reducer such as FR-202, FR-203 and FR-204 is have developed, is served for China's acid with the developmental research of drag reducer
Impetus, but the temperature in use of these drag reducers is limited by very large, and has sediment generation in high-temperature acid, can over the ground
Layer causes very big injury.
The content of the invention
The technical problems to be solved by the invention are in view of the shortcomings of the prior art, there is provided a kind of acid liquid drag reducer
And preparation method thereof.
Technical scheme is as follows：
A kind of acid liquid drag reducer and preparation method thereof, its step is as follows：
(1) acrylamide purification, it is standby；
(2) monomer 2- acrylamide-2-methylpro panesulfonic acids are weighed in beaker, add deionized water dissolving so that 2- third
The mass concentration of acrylamide base -2- methyl propane sulfonic acids is 13-15%, then adds piece alkali, system pH is adjusted into 8-10；
(3) monomeric acrylamide and long chain cation monomer are added in solution prepared by step (2), stirring makes it
Fully dissolving, it is configured to the aqueous solution that monomer mass concentration is 25%-35%；
(4) monomer solution prepared by step (3) is added in reactor, starts logical inert gas, and regulation bubble is uniform
It is coherent, reactor is placed in 20 DEG C of magnetic force thermostat water baths and stirred, after quick stirring 30min, mixing speed is adjusted to 50-
100 turns/min, regulation bath temperature is initiation reaction temperature, then adds initiator, is sealed airway tube with rubber tip, to prevent
Air enters, and reacts 4h, and liquid starts retrogradation in bottle, then water-bath pot temperature is adjusted into 56 DEG C, continues to cure 2h, product in bottle
It is changed into transparent blob of viscose, reaction terminates；
(5) the transparent blob of viscose craft stripping and slicing for preparing step (4), 72 DEG C of drying, is crushed, and 100 mesh sieves point, and powder is made
The acid solution drag reducer of shape.
Described long chain cation monomer is the more alkyl dimethyl allyl ammonium chloride cationoid monomers of CXDMAAC, its
Middle X=14~20.
Described preparation method, the mass ratio of monomer are：Acrylamide:2- acrylamide-2-methylpro panesulfonic acids:It is long
Chain cationic monomer=1:1:0.06.
Described inert gas is N2.
Described initiator is potassium peroxydisulfate/anhydrous sodium sulfite redox initiator, azo-initiator or tertiary amine
The acrylamide derivative of base and the one or more in the redox initiator of K2S2O8 compositions；The addition of initiator is
The 0.06%~0.1% of monomer gross mass.
Described preparation method, in step (4), initiation reaction temperature is 25~35 DEG C.
Acid solution drag reducer made from described preparation method.
The synthetic method of the present invention is simple, and raw material are easy to get, and reduce cost；Acid solution drag reducer drop resistance produced by the present invention
Rate is up to 65%, reduces pump pressure, reduces line losses, extends the service life of equipment；The temperature tolerance of acid solution drag reducer
It is good with compatibility, while also there is certain slow effect.
Embodiment
The acid solution drag reducer BC-131 of embodiment 1 preparation
(1) acrylamide (AM) purifies, standby；
(2) monomer 2- acrylamide-2-methylpro panesulfonic acids (AMPS) are weighed in beaker, add 70ml deionizations water-soluble
Solution, wherein AMPS mass concentration are 14.56%, then add piece alkali, system pH is adjusted into 9；
(3) monomeric acrylamide (AM) and long chain cation monomer are added in solution prepared by step (2)
(CXDMAAC), long chain cation monomer is more alkyl dimethyl allyl ammonium chloride cationoid monomers, wherein X=14~20,
Purchase producer is the Chinese toon Petroleum Technology Co., Ltd of Chengdu one hundred, and each monomer weight ratio is AM:AMPS:CXDMAAC=1:1:0.06, so
After add deionized water, be configured to total monomer quality concentration be 30% the aqueous solution；
(4) monomer solution prepared by step (3) is added in wide-mouth bottle, is shaken up, with three hole rubber stoppers, (hole is air guide
Pipe, a hole are breather pipe, a hole is thermometer) wide-mouth bottle is covered tightly, start logical N2, regulation bubble uniformly links up, then put
After stirring 30min in 20 DEG C of magnetic force thermostat water bath, mixing speed is adjusted to 50-100 and turns/min, by water-bath pot temperature liter
To 25 DEG C, water soluble starter potassium peroxydisulfate slowly is added dropwise respectively into wide-mouth bottle and anhydrous sodium sulfite, the two mass ratio are
2:1, the dosage of initiator is the 0.08% of monomer gross mass, seals airway tube with rubber tip, is entered with air-prevention, is reacted
4h, liquid starts retrogradation in bottle.Water-bath pot temperature is adjusted to 56 DEG C again, continues to cure 2h, product is changed into transparent blob of viscose in bottle, instead
It should terminate；
(5) the transparent blob of viscose craft stripping and slicing for preparing step (4), 72 DEG C of drying, is crushed, and 100 mesh sieves point, and powder is made
The acid solution drag reducer BC-131 of shape.
The effect assessment of embodiment 2
Acid solution drag reducer BC-131 prepared by embodiment 1 is carried out using flowing loop friction drag test system to drop frictional resistance survey
Examination, is contrasted with 12% (wt) blank acid, the middle acid solution drag reducer BC- for adding embodiment 1 and preparing into 12% (wt) acid
131, the mass concentration of drag reducer is 0.1% (w/v).Tested from 6mm pipeline, record passes through the frictional resistance pressure after pipeline
Drop to calculate drag reducing efficiency, according to the drag-reduction effect of the size of drag reducing efficiency evaluation acid solution drag reducer, the relation of drag reducing efficiency and flow is most
Big drag reducing efficiency can reach 65%.
Drag reducing efficiency calculates：
In formula：η ----drag reducing efficiency, %；
Δ P blank --- pressure difference when-blank acid is by testing pipeline, MPa；
The pressure difference when acid solution of Δ P---- drag reducers containing acid solution is by testing pipeline, MPa.
Claims (7)
1. a kind of preparation method of acid solution drag reducer, it is characterized in that, its step is as follows：
（1）Acrylamide purification, it is standby；
（2）Monomer 2- acrylamide-2-methylpro panesulfonic acids are weighed in beaker, add deionized water dissolving so that 2- acryloyls
The mass concentration of amido -2- methyl propane sulfonic acids is 13-15%, then adds piece alkali, system pH is adjusted into 8-10；
（3）In step（2）Monomeric acrylamide and long chain cation monomer are added in the solution of preparation, stirring fills it
Divide dissolving, be configured to the aqueous solution that monomer mass concentration is 25%-35%；
（4）Step（3）The monomer solution of preparation is added in reactor, starts logical inert gas, and regulation bubble uniformly connects
Pass through, reactor is placed in 20 DEG C of magnetic force thermostat water baths and stirred, after quick stirring 30min, mixing speed is adjusted to 50-100
Turn/min, regulation bath temperature is initiation reaction temperature, then adds initiator, airway tube is sealed with rubber tip, with air defense
Gas enters, and reacts 4h, and liquid starts retrogradation in bottle, then water-bath pot temperature is adjusted into 56 DEG C, continues to cure 2h, product becomes in bottle
For transparent blob of viscose, reaction terminates；
（5）By step（4）The transparent blob of viscose craft stripping and slicing prepared, 72 DEG C of drying, is crushed, and 100 mesh sieves point, is made powdered
Acid solution drag reducer.
2. a kind of acid liquid drag reducer according to claim 1 and preparation method thereof, it is characterized in that, the long-chain sun from
Sub- monomer is the more alkyl dimethyl allyl ammonium chloride cationoid monomers of CXDMAAC, wherein X=14~20.
3. a kind of acid liquid drag reducer according to claim 1 and preparation method thereof, it is characterized in that, the mass ratio of monomer
For：Acrylamide:2- acrylamide-2-methylpro panesulfonic acids:Long chain cation monomer=1:1:0.06.
4. a kind of acid liquid drag reducer according to claim 1 and preparation method thereof, it is characterized in that, the inert gas
For N2.
5. a kind of acid liquid drag reducer according to claim 1 and preparation method thereof, it is characterized in that, the initiator is
The acrylamide derivative of potassium peroxydisulfate/anhydrous sodium sulfite redox initiator, azo-initiator or tertiary amine groups with
One or more in the redox initiator of K2S2O8 compositions；The addition of initiator for monomer gross mass 0.06%~
0.1%。
6. a kind of acid liquid drag reducer according to claim 1 and preparation method thereof, it is characterized in that, step（4）In, draw
It is 25~35 DEG C to send out reaction temperature.
7. according to any described a kind of acid liquid drag reducers of claim 1-6 and preparation method thereof, the acid solution drag reducer obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710748262.XA CN107501470A (en) | 2017-08-28 | 2017-08-28 | A kind of acid liquid drag reducer and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710748262.XA CN107501470A (en) | 2017-08-28 | 2017-08-28 | A kind of acid liquid drag reducer and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107501470A true CN107501470A (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710748262.XA Withdrawn CN107501470A (en) | 2017-08-28 | 2017-08-28 | A kind of acid liquid drag reducer and preparation method thereof |
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Cited By (2)
| 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 |
| CN110607171A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Acidic foam slickwater for continental facies shale fracturing and preparation method thereof |
-
2017
- 2017-08-28 CN CN201710748262.XA patent/CN107501470A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607171A (en) * | 2018-06-15 | 2019-12-24 | 中国石油化工股份有限公司 | Acidic foam slickwater for continental facies shale fracturing and preparation method thereof |
| CN110607171B (en) * | 2018-06-15 | 2021-10-22 | 中国石油化工股份有限公司 | Acidic foam slickwater for continental facies shale fracturing and preparation method thereof |
| 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 |
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Application publication date: 20171222 |