CN110498500A - Polymer-degrading agents and preparation method thereof, application - Google Patents
Polymer-degrading agents and preparation method thereof, application Download PDFInfo
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- CN110498500A CN110498500A CN201810478229.4A CN201810478229A CN110498500A CN 110498500 A CN110498500 A CN 110498500A CN 201810478229 A CN201810478229 A CN 201810478229A CN 110498500 A CN110498500 A CN 110498500A
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- parts
- polymer
- degrading agents
- water
- thiocarbamide
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Abstract
The invention discloses a kind of polymer-degrading agents and preparation method thereof, application, belong to disposing polluted water in oil technical field.The polymer-degrading agents include the component of following parts by weight: phenolic compound, and 10~15 parts；Sodium hypochlorite, 50~80 parts；Thiocarbamide, 25~40 parts；Alkaline pH adjusting agent, 5~8 parts；Water, 200~300 parts.Polymer-degrading agents provided by the invention can make polymer chain fast fracture be degraded to small molecule compound, and various polymer are applicable in, are had applied widely, and degradation speed is fast, broad application temperature range, degradation capability is strong, and small advantage is polluted to environment and water injection well.
Description
Technical field
The present invention relates to disposing polluted water in oil technical field, in particular to a kind of polymer-degrading agents and preparation method thereof.
Background technique
As oil yield successively decreases and the high appearance for producing oily water content, many oil fields in China have entered tertiary oil recovery rank at present
Section.Polymer displacement of reservoir oil tech especially POLYACRYLAMIDE FLOODING technology achieves good increasing oil control in the implementation in each oily area
Water effect.But also bring polluted as polymer caused by water body bacterial reproduction or oil well, water filling well plugging the problem of, because
This, needing to take measures on customs clearance makes polymer degrade.
A kind of biodegrading process of polymer is provided in the related technology, method includes the following steps: it is molten to adjust polymer
Pyrogallol, is added in polymer solution by the pH to 4~10 of liquid later, and stirring dissolves pyrogallol, at 50~95 DEG C
Lower constant temperature degradation.
In the implementation of the present invention, the inventors discovered that in the related technology the prior art has at least the following problems:
The polymerizing degradation method narrow application range that the relevant technologies provide, is only applicable to simple polyacrylamide solution.And
Component of polymer is usually relatively complex under water injection well, and the polymer biodegrading process that the relevant technologies provide simultaneously is not suitable for.
Summary of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of polymer-degrading agents applied widely
And preparation method thereof, application.
Specifically, including technical solution below:
The embodiment of the invention provides a kind of polymer-degrading agents,
In a first aspect, the polymer-degrading agents include following the embodiment of the invention provides a kind of polymer-degrading agents
The component of parts by weight:
Phenolic compound, 10~15 parts；
Sodium hypochlorite, 50~80 parts；
Thiocarbamide, 25~40 parts；
Alkaline pH adjusting agent, 5~8 parts；
Water, 200~300 parts.
Optionally, the phenolic compound is selected from least one of pyrogallol, phloroglucin and hydroxyquinol.
Optionally, the alkaline pH adjusting agent is selected from sodium bicarbonate and/or sodium carbonate.
Optionally, the polymer-degrading agents include the component of following parts by weight:
Pyrogallol, 10 parts；
Sodium hypochlorite, 50 parts；
Thiocarbamide, 25 parts；
Sodium bicarbonate, 5 parts；
Water, 200 parts.
Optionally, the polymer-degrading agents include the component of following parts by weight:
Phloroglucin, 12.5 parts；
Sodium hypochlorite, 65 parts；
Thiocarbamide, 32.5 parts；
Sodium carbonate, 6.5 parts；
Water, 250 parts.
Optionally, the polymer-degrading agents include the component of following parts by weight:
Hydroxyquinol, 15 parts；
Sodium hypochlorite, 80 parts；
Thiocarbamide, 40 parts；
Sodium bicarbonate, 8 parts；
Water, 300 parts.
Optionally, the polymer-degrading agents include the component of following parts by weight:
Pyrogallol, 10 parts；
Sodium hypochlorite, 60 parts；
Thiocarbamide, 35 parts；
Sodium bicarbonate, 5 parts；
Water, 200 parts.
Second aspect, the embodiment of the invention provides a kind of preparation methods of above-mentioned polymer-degrading agents, comprising:
Water is added into reaction vessel；
Phenolic compound, thiocarbamide and sodium hypochlorite are added into the water, and stirring makes the phenolic compound, the sulphur
Urea and sodium hypochlorite dissolution, obtain mixed solution；
Alkaline pH adjusting agent is added into the mixed solution, obtains the polymer-degrading agents after mixing evenly.
The third aspect, the embodiment of the invention provides a kind of above-mentioned polymer-degrading agents answering in water filling well servicing
With.
Technical solution provided in an embodiment of the present invention the utility model has the advantages that
Polymer-degrading agents provided in an embodiment of the present invention are and big by a small amount of reducing substances phenolic compound and thiocarbamide
The synergistic effect for measuring sodium hypochlorite, promotes polymer chain fast fracture to be degraded to small molecule compound, equal for various polymer
It is applicable in, has applied widely, and degradation speed is fast, and broad application temperature range, degradation capability is strong, pollutes to environment and water injection well
Small advantage.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, embodiment of the present invention will be made below further detailed
Thin description.Unless otherwise defined, all technical terms used in the embodiment of the present invention all have usual with those skilled in the art
The identical meaning understood.
In a first aspect, the polymer-degrading agents include following heavy the embodiment of the invention provides a kind of polymer-degrading agents
Measure the component of number:
Phenolic compound, 10~15 parts；
Sodium hypochlorite, 50~80 parts；
Thiocarbamide, 25~40 parts；
Alkaline pH adjusting agent, 5~8 parts；
Water, 200~300 parts.
In polymer-degrading agents provided in an embodiment of the present invention, sodium hypochlorite is oxidizing substance, thiocarbamide is reproducibility object
Matter, the two interaction can release the free based component such as Active Chlorine, activity hydroxy, attack polymer long-chain, break
Chain, phenolic compound are co-catalyst, and alkaline pH adjusting agent is release control agent, and the release of active matter is enable steadily to carry out,
Inhibit and reduce the side reaction of active matter itself consumption.
By the mutual cooperation of above-mentioned each component, synergistic effect, polymer-degrading agents provided in an embodiment of the present invention can
So that polymer chain fast fracture is degraded to small molecule compound, for various polymer be applicable in, have it is applied widely, and drop
Solution speed is fast, and broad application temperature range, degradation capability is strong, and small advantage is polluted to environment and water injection well.
Further, in the embodiment of the present invention, phenolic compound is in pyrogallol, phloroglucin and hydroxyquinol
It is at least one.
Alkaline pH adjusting agent is selected from sodium bicarbonate and/or sodium carbonate.
Further, in the embodiment of the present invention, the ratio of each component can in the range of restriction any value.For example,
The parts by weight of phenolic compound can be 10 parts, 10.5 parts, 11 parts, 11.5 parts, 12 parts, 12.5 parts, 13 parts, 13.5 parts, 14
Part, 14.5 parts, 15 parts etc.；The parts by weight of sodium hypochlorite can for 50 parts, 51 parts, 52 parts, 53 parts, 54 parts, 55 parts, 56 parts,
57 parts, 58 parts, 59 parts, 60 parts, 61 parts, 62 parts, 63 parts, 64 parts, 65 parts, 66 parts, 67 parts, 68 parts, 69 parts, 70 parts, 71 parts, 72
Part, 73 parts, 74 parts, 75 parts, 76 parts, 77 parts, 78 parts, 79 parts, 80 parts etc.；The parts by weight of thiocarbamide can be 25 parts, 26 parts, 27
Part, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts etc.；Alkaline pH
The parts by weight of regulator can be 5 parts, 5.5 parts, 6 parts, 6.5 parts, 7.5 parts, 8 parts etc.；The parts by weight of water can be 200
Part, 210 parts, 220 parts, 230 parts, 240 parts, 250 parts, 260 parts, 270 parts, 280 parts, 290 parts, 300 parts etc..
In a kind of possible implementation of the embodiment of the present invention, polymer-degrading agents include the group of following parts by weight
Point:
Pyrogallol, 10 parts；
Sodium hypochlorite, 50 parts；
Thiocarbamide, 25 parts；
Sodium bicarbonate, 5 parts；
Water, 200 parts.
In the alternatively possible implementation of the embodiment of the present invention, polymer-degrading agents include the group of following parts by weight
Point:
Phloroglucin, 12.5 parts；
Sodium hypochlorite, 65 parts；
Thiocarbamide, 32.5 parts；
Sodium carbonate, 6.5 parts；
Water.250 parts.
In the embodiment of the present invention in another possible implementation, polymer-degrading agents include the group of following parts by weight
Point:
Hydroxyquinol, 15 parts；
Sodium hypochlorite, 80 parts；
Thiocarbamide, 40 parts；
Sodium bicarbonate, 8 parts；
Water, 300 parts.
In the embodiment of the present invention in another possible implementation, polymer-degrading agents include the group of following parts by weight
Point:
Polymer-degrading agents include the component of following parts by weight:
Pyrogallol, 10 parts；
Sodium hypochlorite, 60 parts；
Thiocarbamide, 35 parts；
Sodium bicarbonate, 5 parts；
Water, 200 parts.
Second aspect, the embodiment of the invention provides a kind of preparation method of above-mentioned polymer-degrading agents, including it is following
Step:
Step S1, water is added into reaction vessel；
Phenolic compound, thiocarbamide and sodium hypochlorite are added into water by step S2, and stir make phenolic compound, thiocarbamide and
Sodium hypochlorite dissolution, obtains mixed solution；
Alkaline pH adjusting agent is added into mixed solution, obtains polymer-degrading agents after mixing evenly by step S3.
The third aspect, the embodiment of the invention provides a kind of above-mentioned polymer-degrading agents answering in water filling well servicing
With.
In the embodiment of the present invention, pass through the polymerization under any one injection well in oil pipe or casing two ways to underground
Object is degraded.
Polymer-degrading agents provided in an embodiment of the present invention are done below by specific embodiment and are further described in detail.
Embodiment 1
The present embodiment provides a kind of for filling the water the polymer-degrading agents of well servicing, which includes following heavy
Measure the component of number:
Pyrogallol, 10 parts；
Sodium hypochlorite, 50 parts；
Thiocarbamide, 25 parts；
Sodium bicarbonate, 5 parts；
Distilled water, 200 parts.
The polymer-degrading agents the preparation method comprises the following steps:
Step 1: distilled water is added in reaction vessel；
Step 2: sequentially adding pyrogallol, thiocarbamide and hypochlorous acid in reaction vessel into step 1 added with distilled water
Sodium；
Step 3: carbon is added after the solution half an hour of pyrogallol obtained in whipping step two, thiocarbamide and sodium hypochlorite
Sour hydrogen sodium simultaneously stirs evenly, and obtains the polymer-degrading agents of the present embodiment.
Embodiment 2
The present embodiment provides a kind of for filling the water the polymer-degrading agents of well servicing, which includes following heavy
Measure the component of number:
Phloroglucin, 12.5 parts；
Sodium hypochlorite, 65 parts；
Thiocarbamide, 32.5 parts；
Sodium carbonate, 6.5 parts；
Distilled water, 250 parts.
The polymer-degrading agents the preparation method comprises the following steps:
Step 1: distilled water is added in reaction vessel；
Step 2: sequentially adding phloroglucin, thiocarbamide and hypochlorous acid in reaction vessel into step 1 added with distilled water
Sodium；
Step 3: carbon is added after the solution half an hour of pyrogallol obtained in whipping step two, thiocarbamide and sodium hypochlorite
Sour sodium simultaneously stirs evenly, and obtains the polymer-degrading agents of the present embodiment.
Embodiment 3
The present embodiment provides a kind of for filling the water the polymer-degrading agents of well servicing, which includes following heavy
Measure the component of number:
Hydroxyquinol, 15 parts；
Sodium hypochlorite, 80 parts；
Thiocarbamide, 40 parts；
Sodium bicarbonate, 8 parts；
Distilled water, 300 parts.
The polymer-degrading agents the preparation method comprises the following steps:
Step 1: distilled water is added in reaction vessel；
Step 2: sequentially adding hydroxyquinol, thiocarbamide and hypochlorous acid in reaction vessel into step 1 added with distilled water
Sodium；
Step 3: carbon is added after the solution half an hour of pyrogallol obtained in whipping step two, thiocarbamide and sodium hypochlorite
Sour hydrogen sodium simultaneously stirs evenly, and obtains the polymer-degrading agents of the present embodiment.
Embodiment 4
The present embodiment provides a kind of for filling the water the polymer-degrading agents of well servicing, which includes following heavy
Measure the component of number:
Pyrogallol, 10 parts；
Sodium hypochlorite, 60 parts；
Thiocarbamide, 35 parts；
Sodium bicarbonate, 5 parts；
Distilled water, 200 parts.
The polymer-degrading agents the preparation method comprises the following steps:
Step 1: distilled water is added in reaction vessel；
Step 2: sequentially adding pyrogallol, thiocarbamide and hypochlorous acid in reaction vessel into step 1 added with distilled water
Sodium；
Step 3: carbon is added after the solution half an hour of pyrogallol obtained in whipping step two, thiocarbamide and sodium hypochlorite
Sour hydrogen sodium simultaneously stirs evenly, and obtains the polymer-degrading agents of the present embodiment.
Embodiment 5
The present embodiment tests the performance for the polymer-degrading agents that embodiment 1 provides, and drops with existing polymer
Solution method compares.
Wherein, the performance test methods for the polymer-degrading agents that embodiment 1 provides are as follows: by 20,000,000 molecular weight, degree of hydrolysis
25% anionic polyacrylamide is made into 0.3% aqueous solution, and ensures to be uniformly dissolved, completely.Then it takes to have prepared and finish
Polyacrylamide solution 500ml polymer-degrading agents 1.5ml is added and is uniformly mixed, then bottleneck adds in 500ml conical flask
Plug sealing, is put into 45 DEG C ± 1 DEG C of isoperibol, carries out constant temperature degradation, and under different time, and it is viscous to measure it with viscosimeter
Degree.
Existing polymer biodegrading process are as follows: be made into the anionic polyacrylamide of 20,000,000 molecular weight, degree of hydrolysis 25%
0.3% aqueous solution adjusts the pH to 4~10 of polymer solution later, pyrogallol is added in polymer solution later,
Stirring dissolves pyrogallol, and constant temperature is degraded at 50~95 DEG C.
Dependence test result see the table below.
It is strong to can be seen that polymer provided in an embodiment of the present invention degradation degradation capability from upper table data, can make to polymerize
Object chain fast fracture is degraded to small molecule compound.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (9)
1. a kind of polymer-degrading agents, which is characterized in that the polymer-degrading agents include the component of following parts by weight:
Phenolic compound, 10~15 parts；
Sodium hypochlorite, 50~80 parts；
Thiocarbamide, 25~40 parts；
Alkaline pH adjusting agent, 5~8 parts；
Water, 200~300 parts.
2. polymer-degrading agents according to claim 1, which is characterized in that the phenolic compound be selected from pyrogallol,
At least one of phloroglucin and hydroxyquinol.
3. polymer-degrading agents according to claim 2, which is characterized in that the alkaline pH adjusting agent is selected from sodium bicarbonate
And/or sodium carbonate.
4. polymer-degrading agents according to claim 3, which is characterized in that the polymer-degrading agents include following weight
The component of number:
Pyrogallol, 10 parts；
Sodium hypochlorite, 50 parts；
Thiocarbamide, 25 parts；
Sodium bicarbonate, 5 parts；
Water, 200 parts.
5. polymer-degrading agents according to claim 3, which is characterized in that the polymer-degrading agents include following weight
The component of number:
Phloroglucin, 12.5 parts；
Sodium hypochlorite, 65 parts；
Thiocarbamide, 32.5 parts；
Sodium carbonate, 6.5 parts；
Water, 250 parts.
6. polymer-degrading agents according to claim 3, which is characterized in that the polymer-degrading agents include following weight
The component of number:
Hydroxyquinol, 15 parts；
Sodium hypochlorite, 80 parts；
Thiocarbamide, 40 parts；
Sodium bicarbonate, 8 parts；
Water, 300 parts.
7. polymer-degrading agents according to claim 3, which is characterized in that the polymer-degrading agents include following weight
The component of number:
Pyrogallol, 10 parts；
Sodium hypochlorite, 60 parts；
Thiocarbamide, 35 parts；
Sodium bicarbonate, 5 parts；
Water, 200 parts.
8. a kind of preparation method of the described in any item polymer-degrading agents of claim 1~7 characterized by comprising
Water is added into reaction vessel；
Phenolic compound, thiocarbamide and sodium hypochlorite are added into the water, and stir make the phenolic compound, the thiocarbamide and
The sodium hypochlorite dissolution, obtains mixed solution；
Alkaline pH adjusting agent is added into the mixed solution, obtains the polymer-degrading agents after mixing evenly.
9. a kind of application of described in any item polymer-degrading agents of claim 1~7 in water filling well servicing.
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| CN201810478229.4A CN110498500A (en) | 2018-05-18 | 2018-05-18 | Polymer-degrading agents and preparation method thereof, application |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114427391A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | Method for removing stratum adsorption retention polymer by using microorganisms |
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| CN103910474A (en) * | 2014-03-18 | 2014-07-09 | 中国石油天然气股份有限公司 | Microelectrolysis processing method for removing polyacrylamide from oil-containing sludge |
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| US20090130739A1 (en) * | 2005-05-26 | 2009-05-21 | American Sterilizer Company | Deactivation of mineral encapsulated nanobacteria |
| CN101494985A (en) * | 2005-06-10 | 2009-07-29 | 雅宝公司 | High concentrated, biocidally active compositions and aqueous mixtures and methods of making the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114427391A (en) * | 2020-09-21 | 2022-05-03 | 中国石油化工股份有限公司 | Method for removing stratum adsorption retention polymer by using microorganisms |
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Application publication date: 20191126 |