CN110272519A - A kind of novel Polyacrylamides For Enhanced Oil Recoveries - Google Patents
A kind of novel Polyacrylamides For Enhanced Oil Recoveries Download PDFInfo
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- CN110272519A CN110272519A CN201910600789.7A CN201910600789A CN110272519A CN 110272519 A CN110272519 A CN 110272519A CN 201910600789 A CN201910600789 A CN 201910600789A CN 110272519 A CN110272519 A CN 110272519A
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- novel
- polyacrylamides
- enhanced oil
- oil recoveries
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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
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/588—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
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- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of novel Polyacrylamides For Enhanced Oil Recoveries, including mix, seal and add initiator, stand reaction and obtain product after cooling treatment, the immersion of addition ethyl alcohol and shear forming and drying；The present invention is using reaction ratio AM (acrylamide): KH570:AA (acrylic acid)=7:0.4:2 is raw material, it is configured to the mixed liquor that total monomer concentration is 4%, it is initiator by 0.5% potassium peroxydisulfate of monomer gross mass of quality, and POLYACRYLAMIDE FLOODING agent is synthesized in the environment of pH value is 7-8, obtained macromolecular polyacrylamide, molecular weight are big compared with the molecular weight of other systems, and surface tension is small, displacement efficiency is larger, and oil displacement efficiency is high.
Description
Technical field
The invention belongs to polyacrylamide preparation technical fields, and in particular to a kind of novel Polyacrylamides For Enhanced Oil Recoveries.
Background technique
Polyacrylamide (PAM) is a kind of linear macromolecule polymer, and product is broadly divided into two kinds of shapes of dry powder and colloid
Formula.By its average molecular weight can be divided into low molecular weight (<1,000,000), middle-molecular-weihydroxyethyl (200 ~ 4,000,000) and high molecular weight (>700
Ten thousand) three classes.Non-ionic, anionic and cationic can be divided into again by its structure.Anionic is mostly the hydrolysis body of PAM
(HPAM).A large amount of amide groups is had on the main chain of polyacrylamide, chemical activity is very high, can be modified and produce many polypropylene
The derivative of amide, product are widely used to the industries such as papermaking, ore dressing, oil recovery, metallurgy, building materials, sewage treatment.Polyacrylamide
Amine as lubricant, suspending agent, clay stabilizer, oil displacement agent, fluid loss agent and thickener, drilling well, acidification, pressure break, water blockoff,
It is widely applied in well cementation and secondary oil recovery, tertiary oil recovery, is a kind of particularly important oil field chemical.
The polyacrylamide that existing preparation process obtains, molecular weight is small compared with the molecular weight of other systems, and surface tension is big,
Displacement efficiency is smaller, and oil displacement efficiency is low, thus it is proposed that a kind of novel Polyacrylamides For Enhanced Oil Recoveries.
Summary of the invention
The purpose of the present invention is to provide a kind of novel Polyacrylamides For Enhanced Oil Recoveries, to solve to propose in above-mentioned background technique
Existing preparation process obtain polyacrylamide, molecular weight is small compared with the molecular weight of other systems, and surface tension is big, displacement effect
Rate is smaller, the low problem of oil displacement efficiency.
To achieve the above object, the invention provides the following technical scheme: a kind of novel Polyacrylamides For Enhanced Oil Recoveries, include
Following steps:
Step 1: acrylamide, acrylic acid, KH570 are proportionally added into three-necked flask, and distillation water as solvent is added and prepares
At mixed liquor A；
Step 2: sealing, and on magnetic stirrer after mixing evenly, is placed in constant temperature in water-bath, pH value is adjusted, by monomer
0.5% initiator of quality instills in bottle and is configured to solution B；
Step 3: reaction is stood, required solution is obtained, is cooled to handle；
Step 4: reaction mixture is transferred in beaker, and ethyl alcohol is added and impregnates, while being cut reaction mixture to rice with scissors
Grain size, during which replaces ethyl alcohol in due course, until polymer becomes hard white granular solid completely；
Step 5: the polymer solids of white granular are transferred in surface plate, are put into vacuum in vacuum oven and are done constant weight,
Product is obtained, bottling sealing is spare.
As a preferred technical solution of the present invention, in the step 1, acrylamide: acrylic acid: KH570=7:2:
0.4。
As a preferred technical solution of the present invention, in the step 1, the total monomer concentration of mixed liquor A is 2%-6%
(mass fraction).
As a preferred technical solution of the present invention, in the step 2, bath temperature is 40-80 DEG C.
As a preferred technical solution of the present invention, in the step 2, pH value is 7-8.
As a preferred technical solution of the present invention, in the step 2, initiator is potassium peroxydisulfate (KPS).
As a preferred technical solution of the present invention, in the step 3, reaction 2h is stood.
As a preferred technical solution of the present invention, in the step 5, vacuum drying the temperature inside the box is 40 DEG C.
Compared with prior art, the beneficial effects of the present invention are: the present invention is with reaction ratio AM (acrylamide):
KH570:AA (acrylic acid)=7:0.4:2 is raw material, is initiator by 0.5% potassium peroxydisulfate of monomer gross mass of quality,
And POLYACRYLAMIDE FLOODING agent, obtained macromolecular polyacrylamide, molecular weight are synthesized in the environment of pH value is 7-8
Big compared with the molecular weight of other systems, surface tension is small, and displacement efficiency is larger, and oil displacement efficiency is high.
Detailed description of the invention
Fig. 1 is reaction mechanism schematic diagram of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
Referring to Fig. 1, the present invention provides a kind of novel Polyacrylamides For Enhanced Oil Recoveries technical solution: a kind of novel displacement of reservoir oil polypropylene
Amide comprises the following steps:
Step 1: acrylamide, acrylic acid, KH570 are proportionally added into three-necked flask, and distillation water as solvent is added and prepares
At mixed liquor A；
Step 2: sealing, and on magnetic stirrer after mixing evenly, is placed in constant temperature in water-bath, pH value is adjusted, by monomer
0.5% initiator of quality instills in bottle and is configured to solution B；
Step 3: reaction is stood, required solution is obtained, is cooled to handle；
Step 4: reaction mixture is transferred in beaker, and ethyl alcohol is added and impregnates, while being cut reaction mixture to rice with scissors
Grain size, during which replaces ethyl alcohol in due course, until polymer becomes hard white granular solid completely；
Step 5: the polymer solids of white granular are transferred in surface plate, are put into vacuum in vacuum oven and are done constant weight,
Product is obtained, bottling sealing is spare.
In the present embodiment, it is preferred that in step 1, acrylamide: acrylic acid: KH570=7:2:0.4.
In the present embodiment, it is preferred that in step 1, the total monomer concentration of mixed liquor A is 2%(mass fraction).
In the present embodiment, it is preferred that in step 2, bath temperature is 40 DEG C.
In the present embodiment, it is preferred that in step 2, pH value is 7.
In the present embodiment, it is preferred that in step 2, initiator is potassium peroxydisulfate (KPS).
In the present embodiment, it is preferred that in step 3, stand reaction 2h.
In the present embodiment, it is preferred that in step 5, vacuum drying the temperature inside the box is 40 DEG C.
Embodiment two
Referring to Fig. 1, the present invention provides a kind of novel Polyacrylamides For Enhanced Oil Recoveries technical solution: a kind of novel displacement of reservoir oil polypropylene
Amide comprises the following steps:
Step 1: acrylamide, acrylic acid, KH570 are proportionally added into three-necked flask, and distillation water as solvent is added and prepares
At mixed liquor A；
Step 2: sealing, and on magnetic stirrer after mixing evenly, is placed in constant temperature in water-bath, pH value is adjusted, by monomer
0.5% initiator of quality instills in bottle and is configured to solution B；
Step 3: reaction is stood, required solution is obtained, is cooled to handle；
Step 4: reaction mixture is transferred in beaker, and ethyl alcohol is added and impregnates, while being cut reaction mixture to rice with scissors
Grain size, during which replaces ethyl alcohol in due course, until polymer becomes hard white granular solid completely；
Step 5: the polymer solids of white granular are transferred in surface plate, are put into vacuum in vacuum oven and are done constant weight,
Product is obtained, bottling sealing is spare.
In the present embodiment, it is preferred that in step 1, acrylamide: acrylic acid: KH570=7:2:0.4.
In the present embodiment, it is preferred that in step 1, the total monomer concentration of mixed liquor A is 4%(mass fraction).
In the present embodiment, it is preferred that in step 2, bath temperature is 60 DEG C.
In the present embodiment, it is preferred that in step 2, pH value is 7.5.
In the present embodiment, it is preferred that in step 2, initiator is potassium peroxydisulfate (KPS).
In the present embodiment, it is preferred that in step 3, stand reaction 2h.
In the present embodiment, it is preferred that in step 5, vacuum drying the temperature inside the box is 40 DEG C.
Embodiment three
Referring to Fig. 1, the present invention provides a kind of novel Polyacrylamides For Enhanced Oil Recoveries technical solution: a kind of novel displacement of reservoir oil polypropylene
Amide comprises the following steps:
Step 1: acrylamide, acrylic acid, KH570 are proportionally added into three-necked flask, and distillation water as solvent is added and prepares
At mixed liquor A；
Step 2: sealing, and on magnetic stirrer after mixing evenly, is placed in constant temperature in water-bath, pH value is adjusted, by monomer
0.5% initiator of quality instills in bottle and is configured to solution B；
Step 3: reaction is stood, required solution is obtained, is cooled to handle；
Step 4: reaction mixture is transferred in beaker, and ethyl alcohol is added and impregnates, while being cut reaction mixture to rice with scissors
Grain size, during which replaces ethyl alcohol in due course, until polymer becomes hard white granular solid completely；
Step 5: the polymer solids of white granular are transferred in surface plate, are put into vacuum in vacuum oven and are done constant weight,
Product is obtained, bottling sealing is spare.
In the present embodiment, it is preferred that in step 1, acrylamide: acrylic acid: KH570=7:2:0.4.
In the present embodiment, it is preferred that in step 1, the total monomer concentration of mixed liquor A is 6%(mass fraction).
In the present embodiment, it is preferred that in step 2, bath temperature is 80 DEG C.
In the present embodiment, it is preferred that in step 2, pH value is 8.
In the present embodiment, it is preferred that in step 2, initiator is potassium peroxydisulfate (KPS).
In the present embodiment, it is preferred that in step 3, stand reaction 2h.
In the present embodiment, it is preferred that in step 5, vacuum drying the temperature inside the box is 40 DEG C.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of novel Polyacrylamides For Enhanced Oil Recoveries, which is characterized in that comprise the following steps:
Step 1: acrylamide, acrylic acid, KH570 are proportionally added into three-necked flask, and distillation water as solvent is added and prepares
At mixed liquor A；
Step 2: sealing, and on magnetic stirrer after mixing evenly, is placed in constant temperature in water-bath, pH value is adjusted, by monomer
0.5% initiator of quality instills in bottle and is configured to solution B；
Step 3: reaction is stood, required solution is obtained, is cooled to handle；
Step 4: reaction mixture is transferred in beaker, and ethyl alcohol is added and impregnates, while being cut reaction mixture to rice with scissors
Grain size, during which replaces ethyl alcohol in due course, until polymer becomes hard white granular solid completely；
Step 5: the polymer solids of white granular are transferred in surface plate, are put into vacuum in vacuum oven and are done constant weight,
Product is obtained, bottling sealing is spare.
2. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: in the step 1, third
Acrylamide: acrylic acid: KH570=7:2:0.4.
3. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: in the step 1, mix
The total monomer concentration for closing liquid A is 2%-6%(mass fraction).
4. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: in the step 2, water
Bath temperature is 40-80 DEG C.
5. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: in the step 2, pH
Value is 7-8.
6. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: in the step 2, draw
Hair agent is potassium peroxydisulfate (KPS).
7. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: quiet in the step 3
Set reaction 2h.
8. a kind of novel Polyacrylamides For Enhanced Oil Recoveries according to claim 1, it is characterised in that: in the step 5, very
The dry the temperature inside the box of sky is 40 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600789.7A CN110272519A (en) | 2019-07-04 | 2019-07-04 | A kind of novel Polyacrylamides For Enhanced Oil Recoveries |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910600789.7A CN110272519A (en) | 2019-07-04 | 2019-07-04 | A kind of novel Polyacrylamides For Enhanced Oil Recoveries |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138589A (en) * | 2020-01-07 | 2020-05-12 | 武汉奥克化学有限公司 | Concrete viscosity regulator and preparation method and application thereof |
Citations (2)
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| CN102675533A (en) * | 2012-05-17 | 2012-09-19 | 陕西科技大学 | Ultrasound auxiliary preparation method of hydrophobic association polyacrylamide (HAPAM) |
| CN104762076A (en) * | 2014-12-09 | 2015-07-08 | 西南石油大学 | Water soluble AM-AA-modified nanometer SiO2 functional monomer terpolymer oil-displacement agent |
-
2019
- 2019-07-04 CN CN201910600789.7A patent/CN110272519A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102675533A (en) * | 2012-05-17 | 2012-09-19 | 陕西科技大学 | Ultrasound auxiliary preparation method of hydrophobic association polyacrylamide (HAPAM) |
| CN104762076A (en) * | 2014-12-09 | 2015-07-08 | 西南石油大学 | Water soluble AM-AA-modified nanometer SiO2 functional monomer terpolymer oil-displacement agent |
Non-Patent Citations (1)
| Title |
|---|
| 毛佩林: "新型驱油剂聚丙烯酰胺的合成及性能研究", 《橡塑技术与装备》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111138589A (en) * | 2020-01-07 | 2020-05-12 | 武汉奥克化学有限公司 | Concrete viscosity regulator and preparation method and application thereof |
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Application publication date: 20190924 |