CN113040166A - Bactericide for oilfield reinjection water and preparation method thereof - Google Patents
Bactericide for oilfield reinjection water and preparation method thereof Download PDFInfo
- Publication number
- CN113040166A CN113040166A CN201911372326.6A CN201911372326A CN113040166A CN 113040166 A CN113040166 A CN 113040166A CN 201911372326 A CN201911372326 A CN 201911372326A CN 113040166 A CN113040166 A CN 113040166A
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- CN
- China
- Prior art keywords
- bactericide
- parts
- water
- preparation
- oilfield reinjection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=CX2 groups, e.g. isothiourea
- A01N47/44—Guanidine; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
- A01N33/02—Amines; Quaternary ammonium compounds
- A01N33/12—Quaternary ammonium compounds
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- 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
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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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
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
The invention discloses a bactericide for oilfield reinjection water and a preparation method thereof, wherein the bactericide comprises the following substances in parts by mass: the sewage contains bacteria SRB more than 100000/ml, TGB more than 10000/ml and FB more than 10000/ml; the bactericide comprises 12-20 parts of quaternary ammonium salt bactericide, 8-15 parts of polyaminopropyl biguanide, 4-8 parts of 1, 2-ethylidene ammonium bisdithiocarbamate, 2-5 parts of wetting agent and 15-22 parts of water; the invention provides a bactericide for oilfield reinjection water and a preparation method thereof, wherein the bactericide comprises the following steps: adding five raw materials of water, poly (aminopropyl biguanide), quaternary ammonium salt bactericide, 1, 2-ethylene bis-dithiocarbamate and wetting agent into a stirring kettle in sequence according to the mass ratio, and mechanically stirring for 15-40min to obtain the product.
Description
Technical Field
The invention relates to the technical field of bactericides, in particular to a bactericide for oilfield reinjection water and a preparation method thereof.
Background
In oilfield production and water injection systems, there are many microorganisms such as sulfate reducing bacteria, iron bacteria, saprophytic bacteria, algae, sulfur bacteria, yeasts, molds, protozoa, etc., of which the most harmful are sulfate reducing bacteria, iron bacteria and saprophytic bacteria. The growth and the propagation of fungi cause the corrosion and the damage of equipment and the blockage of pipelines and water injection wells; the permeability of pores of an oil layer is reduced, and water injection oil extraction is hindered; and may even degrade other oil field chemicals and impair the effectiveness of their use as pharmaceuticals. Therefore, it is necessary to deliver a bactericide to ensure the performance of oil field construction. In the tertiary oil recovery polymer flooding process of a Hongkong oilfield, the injection water is sewage separated from oil well produced liquid, and is influenced by factors such as temperature, oxygen content, suspended matters, environment and the like, a large amount of bacteria are propagated in the reinjection water, and mainly comprise three bacteria of sulfate reducing bacteria SRB, saprophytic bacteria TGB and iron bacteria FB, so that not only is the injection water quality directly influenced, the viscosity of polymer flooding reduced, but also corrosion of pipelines and equipment in an injection station can be caused, and the bactericide is widely applied to the reinjection water of an injection block of the oilfield at present.
The long-term use of the same bactericide in the polymer injection site can generate drug resistance to bacteria and influence the sterilization effect. Meanwhile, in order to further improve the sterilization performance of the bactericide of the company and reduce the cost of the bactericide, the bactericide with high sterilization rate and environmental protection is invented.
Disclosure of Invention
The invention aims to provide a bactericide for oilfield reinjection water and a preparation method thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the bactericide for oilfield reinjection water comprises the following substances in parts by mass: the sewage contains bacteria SRB more than 100000/ml, TGB more than 10000/ml and FB more than 10000/ml; the bactericide comprises 12-20 parts of quaternary ammonium salt bactericide, 8-15 parts of polyaminopropyl biguanide, 4-8 parts of 1, 2-ethylidene ammonium bisdithiocarbamate, 2-5 parts of wetting agent and 15-22 parts of water;
the invention provides a bactericide for oilfield reinjection water and a preparation method thereof, wherein the bactericide comprises the following steps: adding five raw materials of water, poly (aminopropyl biguanide), quaternary ammonium salt bactericide, 1, 2-ethylene bis-dithiocarbamate and wetting agent into a stirring kettle in sequence according to the mass ratio, and mechanically stirring for 15-40min to obtain the product.
Preferably, the quaternary ammonium salt bactericide is one of dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, alkyl dimethyl benzyl ammonium chloride and polyquaternary ammonium salt.
Preferably, the polyaminopropyl biguanide is a cationic surfactant, and guanidino has high activity, can interact with groups in organisms to destroy normal substance and energy metabolism, and has antibacterial and antiseptic effects.
Preferably, the wetting agent is one of sodium dodecyl benzene sulfonate, water-soluble azone and saponin powder.
Compared with the prior art, the invention has the beneficial effects that:
(1) by utilizing the synergistic effect of the raw materials, the bactericide has good bactericidal performance on SRB, TGB and FB, has no corrosivity and irritation, and has the characteristics of safe operation, strong stability and the like.
(2) Compared with the prior art, the product has improved performance, and solves the problem of drug resistance of the same bactericide after long-term use.
(3) Compared with the existing bactericide, the cost of the product of the invention is reduced by 15%.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the oilfield bactericide of the embodiment comprises five components of dodecyl trimethyl ammonium chloride, polyaminopropyl biguanide, 1, 2-ethylene ammonium bisdithiocarbamate, sodium dodecyl benzene sulfonate and water, and the specific mixture ratio is as follows:
dodecyl trimethyl ammonium chloride 12kg
8kg of polyaminopropyl biguanide
4kg of ammonium 1, 2-ethylenebisdithiocarbamate
2kg of sodium dodecyl benzene sulfonate
15kg of water
And sequentially adding water, poly (aminopropyl biguanide), dodecyl trimethyl ammonium chloride, 1, 2-ethylene ammonium bisdithiocarbamate and sodium dodecyl benzene sulfonate into the stirring kettle, and mechanically stirring for 15min to obtain the product.
Example 2:
the oilfield bactericide of the embodiment comprises dodecyl dimethyl benzyl ammonium chloride, polyaminopropyl biguanide, 1, 2-ethylidene ammonium bisdithiocarbamate, water-soluble azone and water, and the specific mixture ratio is as follows:
dodecyl dimethyl benzyl ammonium chloride 20kg
15kg of polyaminopropyl biguanide
8kg of ammonium 1, 2-ethylenebisdithiocarbamate
5kg of water-soluble azone
22kg of water
And sequentially adding water, poly (aminopropyl biguanide), dodecyl dimethyl benzyl ammonium chloride, 1, 2-ethylene ammonium bis-dithiocarbamate and water-soluble azone into a stirring kettle, and mechanically stirring for 30min to obtain the product.
Example 3:
the oilfield bactericide of the embodiment comprises five components of poly (aminopropyl biguanide), alkyl dimethyl benzyl ammonium chloride, 1, 2-ethylene ammonium bis-dithiocarbamate, saponin powder and water, and the specific mixture ratio is as follows:
alkyl dimethyl benzyl ammonium chloride 15kg
10kg of polyaminopropyl biguanide
6kg of ammonium 1, 2-ethylenebisdithiocarbamate
Chinese honey locust powder 3kg
18kg of water
And sequentially adding water, poly (aminopropyl biguanide), alkyl dimethyl benzyl ammonium chloride, 1, 2-ethylene ammonium bis-dithiocarbamate and saponin powder into a stirring kettle, and mechanically stirring for 40min to obtain the product.
The bactericidal effect of the examples is shown in table 1:
TABLE 1 analysis of the bactericidal effect of the examples
50mg/L, the sterilization rate%
As shown in Table 1, the products of the examples 1,2 and 3 have remarkable sterilizing effects on sulfate reducing bacteria, saprophytic bacteria and iron bacteria in the reinjection water, and the sterilizing rate is more than 95%.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The bactericide for oilfield reinjection water and the preparation method thereof are characterized in that: the feed consists of the following substances in parts by mass: the sewage contains bacteria SRB more than 100000/ml, TGB more than 10000/ml and FB more than 10000/ml; the bactericide comprises 12-20 parts of quaternary ammonium salt bactericide, 8-15 parts of polyaminopropyl biguanide, 4-8 parts of 1, 2-ethylidene ammonium bisdithiocarbamate, 2-5 parts of wetting agent and 15-22 parts of water;
the invention provides a bactericide for oilfield reinjection water and a preparation method thereof, wherein the bactericide comprises the following steps: adding five raw materials of water, poly (aminopropyl biguanide), quaternary ammonium salt bactericide, 1, 2-ethylene bis-dithiocarbamate and wetting agent into a stirring kettle in sequence according to the mass ratio, and mechanically stirring for 15-40min to obtain the product.
2. The bactericide for oilfield reinjection water and the preparation method thereof according to claim 1, wherein the bactericide comprises the following components in parts by weight: the quaternary ammonium salt bactericide is one of dodecyl trimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium chloride, alkyl dimethyl benzyl ammonium chloride and polyquaternary ammonium salt.
3. The bactericide for oilfield reinjection water and the preparation method thereof according to claim 1, wherein the bactericide comprises the following components in parts by weight: the poly aminopropyl biguanide is a cationic surfactant, guanidino has high activity, can interact with radicals in organisms to destroy normal substance and energy metabolism, and has bactericidal and antiseptic effects.
4. The bactericide for oilfield reinjection water and the preparation method thereof according to claim 1, wherein the bactericide comprises the following components in parts by weight: the wetting agent is one of sodium dodecyl benzene sulfonate, water-soluble azone and saponin powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372326.6A CN113040166A (en) | 2019-12-27 | 2019-12-27 | Bactericide for oilfield reinjection water and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911372326.6A CN113040166A (en) | 2019-12-27 | 2019-12-27 | Bactericide for oilfield reinjection water and preparation method thereof |
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| CN113040166A true CN113040166A (en) | 2021-06-29 |
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Family Applications (1)
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| CN201911372326.6A Pending CN113040166A (en) | 2019-12-27 | 2019-12-27 | Bactericide for oilfield reinjection water and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111164181A (en) * | 2017-10-03 | 2020-05-15 | 意特麦琪化工英国有限责任公司 | Treatment of circulating water systems for well treatment fluids including oil and gas applications |
| CN115606590A (en) * | 2022-09-08 | 2023-01-17 | 广州优尼康通卫生科技有限公司 | Composite long-acting disinfectant and preparation method thereof |
| CN115606590B (en) * | 2022-09-08 | 2024-04-30 | 广州优尼康通卫生科技有限公司 | Composite long-acting disinfectant and preparation method thereof |
Citations (2)
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| CN102428946A (en) * | 2011-09-28 | 2012-05-02 | 晋中杰龙实业有限公司 | Poly-guanidine SFT bactericide |
| CN109566643A (en) * | 2018-12-07 | 2019-04-05 | 天津亿利科能源科技发展股份有限公司 | Oil field Compositional type fungicide and preparation method |
-
2019
- 2019-12-27 CN CN201911372326.6A patent/CN113040166A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428946A (en) * | 2011-09-28 | 2012-05-02 | 晋中杰龙实业有限公司 | Poly-guanidine SFT bactericide |
| CN109566643A (en) * | 2018-12-07 | 2019-04-05 | 天津亿利科能源科技发展股份有限公司 | Oil field Compositional type fungicide and preparation method |
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| 《油气田腐蚀与防护技术手册》编委会: "《油气田腐蚀与防护技术手册》", 30 June 1996, 石油工业出版社 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111164181A (en) * | 2017-10-03 | 2020-05-15 | 意特麦琪化工英国有限责任公司 | Treatment of circulating water systems for well treatment fluids including oil and gas applications |
| CN111164181B (en) * | 2017-10-03 | 2023-05-26 | 意特麦琪化工英国有限责任公司 | Treatment of circulating water systems for well treatment fluids including oil and gas applications |
| CN115606590A (en) * | 2022-09-08 | 2023-01-17 | 广州优尼康通卫生科技有限公司 | Composite long-acting disinfectant and preparation method thereof |
| CN115606590B (en) * | 2022-09-08 | 2024-04-30 | 广州优尼康通卫生科技有限公司 | Composite long-acting disinfectant and preparation method thereof |
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Application publication date: 20210629 |