CN104304268A - Bactericide for oilfield reinjection water - Google Patents
Bactericide for oilfield reinjection water Download PDFInfo
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- CN104304268A CN104304268A CN201410629577.9A CN201410629577A CN104304268A CN 104304268 A CN104304268 A CN 104304268A CN 201410629577 A CN201410629577 A CN 201410629577A CN 104304268 A CN104304268 A CN 104304268A
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Abstract
The invention belongs to the technical field of treatment of the oilfield reinjection water, and particularly relates to a bactericide for oilfield reinjection water. The bactericide comprises the following raw materials in part by weight: 60-70 parts of dodecyl dimethyl benzyl ammonium chloride, 1.5-3.0 parts of isothiazolinone, 2-4 parts of alkylphenol ethoxylates, 15-20 parts of 2, 2-dibromo-2-cyanoacetamide and 11.5-13 parts of absolute ethyl alcohol. The bactericide for the oilfield reinjection water, provided by the invention, is mainly applied to the bactericidal treatment of the oilfield reinjection water.
Description
Technical field
The invention belongs to the processing technology field of oil field reinjection water, particularly a kind of bactericide for oil field reinjection water.
Background technology
The sewage that crude oil Produced Liquid is separated generally all contains a series of bacterial micro-organisms being unfavorable for water flood recovery such as having sulfate reducing bacteria (SRB), saprophytic bacteria (TGB) and iron bacteria etc. easily to cause that metal erosion, formation blockage, chemical agent go bad in a large number.Therefore, generally all need to add bactericide before produced-water reinjection and carry out pretreatment.
Literature search information announcing: the patent No. CN201010202497 " oilfield reinjection water sterilizing agent " of (1) discloses a kind of oil field bactericide, is specially a kind of oilfield reinjection water sterilizing agent.Solve the sterilization problem of oil field reinjection water.A kind of oilfield reinjection water sterilizing agent, is made up of the raw material of following weight ratio example, fourth diamino 1-3 part, guanidine sulfate 3-5 part, polyhexamethylene guanide 1-2 part, polyolefin guanidine 1-2 part.(2) patent No. CN201210179940 provides a kind of new and effective oil field bactericide and preparation method thereof, described bactericide is isatin base Mannich base, described replacement isatin is 5 isatin having hydrogen, methyl, methoxy substitution, described bactericide is light yellow to orange red powder or granular solids, be soluble in DMF or DMSO, can water-soluble, methyl alcohol, ethanol, acetone and acetonitrile.(3) patent No. CN201110297850 discloses a kind of oil field bactericide, is specially a kind of poly-guanidine SFT bactericide.Solve the technical problems such as the sterilization removal of impurities of oil field reinjection water and oil refinery waste water, be made up of the raw material of following weight ratio example, Polyhaxemethylenguanidine Hydrochloride 10-15 part, clean youngster are gone out 2-4 part, PHMB 5-7 part, hydrogen chloride guanidine 1-3 part, iron sulfate 2-4 part, water 20-30 part.Deliver publication to disclose: " oil-gas field surface engineering " 2008, the article of people's " environment-friendly type bactericide kills performance to SRB's in oil field reinjection water " such as 27 (11) Chen Xia published, report and adopt dilution-to-extinction method to measure hydantoin halides and self-control C5H6Br2N2O2 aqueous solution bactericide (being called for short FDBH), to the bactericidal effect of SRB in oil field reinjection water, and compare with industrial common fungicide.Result shows: operative temperature be 40 DEG C, under action time is 1h experiment condition, the killing rate of FDBH to SRB of 50mg/L reaches 100%, suitable with diquaternary amine salt, is better than 1227 bactericide; FDBH lasting effect was higher than 1 month, and sterilizing rate maintains more than 99.14%; Chloride ion content is not obvious on the impact of hydantoin halides bactericidal effect.
Summary of the invention
The object of the invention is to: the sewage re-injection after treatment that the reinjected water due to oil field all adopts crude oil Produced Liquid to be separated, so both avoids discharge-ring environment pollution, reach again the object of water injection to keep pressure.But, consider some characteristics of oilfield sewage, i.e. oilfield sewage Containing Sulfate Reducing Bacteria (SRB), saprophytic bacteria (TGB) and iron bacteria, bactericide will have special efficacy to these three kinds of Main Bacterias, oilfield sewage all contains certain greasy dirt after treatment, pickup can be assembled over a long time on water injection pipe, benefit Growth of Sulfate Reducing Bacteria, therefore, must for the feature of oilfield sewage, invention one is specifically designed to oilfield reinjection water sterilizing agent, uses rear this bactericide well can play the effect of reinjected water sterilization, can make demonstration for the energy-saving and cost-reducing of enterprise.
It is as follows that the present invention solves the problems of the technologies described above adopted technical scheme: a kind of bactericide for oil field reinjection water, is characterized in that: this bactericide is made up of following raw materials by weight portion ratio: dodecyl benzyl dimethyl ammonium chloride: 60-70 part, isothiazolinone: 1.5-3.0 part, alkylphenol polyoxyethylene: 2-4 part; DBNPA: 15-20 part, absolute ethyl alcohol: 11.5-13 part forms.
Wherein, dodecyl benzyl dimethyl ammonium chloride, namely 1227 another names are: geramine, benzalkonium chloride, and 1227 is a kind of cationic surfactants, have certain to deoil, deodorizing capability and corrosion inhibition; Isothiazolinone, Chinese KF88 preservative, is made up of CMIT (CMI) and MIT (MI); DBNPA, is called for short DBNPA, is non-oxidative bactericide, under low dosage, plays efficient dual characteristics; Alkylphenol polyoxyethylene (main component in op-10) is a kind of white and milky pastel, soluble in water, has excellent level dyeing, emulsification, wetting, diffusion, antistatic behaviour; Absolute ethyl alcohol: write some specifications
Beneficial effect of the present invention: the present invention selects 1227 (dodecyl benzyl dimethyl ammonium chlorides), isothiazolinone, DBNPA (2,2-dibromo-2-cyanoacetamide) three kinds of outstanding bactericide monomer compounds, be conducive to bactericide and better penetrate bacterium, adopt absolute ethyl alcohol to make solvent to water-soluble bad DBNPA simultaneously, three kinds of mutual synergy of sterilization monomer, learn from other's strong points to offset one's weaknesses, better sterilization, shows technological progress.
Embodiment
Embodiment 1, a kind of bactericide for oil field reinjection water, this bactericide is made up of following raw materials by weight portion ratio: dodecyl benzyl dimethyl ammonium chloride: 60 parts, isothiazolinone: 3.0 parts, alkylphenol polyoxyethylene: 4 parts; DBNPA: 20 parts, absolute ethyl alcohol: 13 parts of compositions.
Preparation method: by 2,2-dibromo-2-cyanoacetamide is placed in the reactor of band paddle, mateiral pump is adopted to add absolute ethyl alcohol, under normal temperature, normal pressure, start to stir, after 10min, add dodecyl benzyl dimethyl ammonium chloride, isothiazolinone, alkylphenol polyoxyethylene successively, all take out after material, Keep agitation 30min discharging, get product bactericide.
Embodiment 2, a kind of bactericide for oil field reinjection water, this bactericide is made up of following raw materials by weight portion ratio: dodecyl benzyl dimethyl ammonium chloride: 65 parts, isothiazolinone: 2 parts, alkylphenol polyoxyethylene: 3 parts; DBNPA: 18 parts, absolute ethyl alcohol: 12 parts of compositions.
Preparation method is with embodiment 1.
Embodiment 3, a kind of bactericide for oil field reinjection water, this bactericide is made up of following raw materials by weight portion ratio: dodecyl benzyl dimethyl ammonium chloride: 70 parts, isothiazolinone: 1.5 parts, alkylphenol polyoxyethylene: 2 parts; DBNPA: 15 parts, absolute ethyl alcohol: 11.5 parts of compositions.
Preparation method is with embodiment 1.
In practice, make bactericide product according to embodiment 1-3 proportioning, be applied in Tahe Oilfield in Xinjiang production, adopt dosing pump to add waterflood-transmission line, medicament flows into stratum with water.After enforcement, experimental result is as follows:
This experiment water quality takes from Tahe Oilfield in Xinjiang water quality, surveys sterilizing rate as follows:
Conclusion: can be found out by above-mentioned several routine experimental data, several medicament of the present invention has good synergy, mutual synergy, has significant inhibition at high salinity oil field reinjection water and oil extraction production bacteria breed, is a kind of oil field bactericide kind having development potentiality.
Claims (1)
1. for a bactericide for oil field reinjection water, it is characterized in that: this bactericide is made up of following raw materials by weight portion ratio: dodecyl benzyl dimethyl ammonium chloride: 60-70 part, isothiazolinone: 1.5-3.0 part, alkylphenol polyoxyethylene: 2-4 part; DBNPA: 15-20 part, absolute ethyl alcohol: 11.5-13 part forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410629577.9A CN104304268A (en) | 2014-11-10 | 2014-11-10 | Bactericide for oilfield reinjection water |
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| CN201410629577.9A CN104304268A (en) | 2014-11-10 | 2014-11-10 | Bactericide for oilfield reinjection water |
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| CN104304268A true CN104304268A (en) | 2015-01-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174868A (en) * | 2017-12-31 | 2018-06-19 | 仙桃市中楚化工有限责任公司 | A kind of strong fungicide |
| CN111511473A (en) * | 2017-07-28 | 2020-08-07 | 美国Ddp特种电子材料公司 | Use of non-oxidizing biocides for selective recovery of valuable metals in froth flotation processes |
| CN111685116A (en) * | 2020-07-27 | 2020-09-22 | 中国石油天然气股份有限公司 | Compound oilfield bactericide and preparation method, use method and application thereof |
| CN116850789A (en) * | 2023-09-05 | 2023-10-10 | 杭州尚善若水环保科技有限公司 | Cleaning agent mixture and application thereof in cleaning reverse osmosis membrane |
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| CN101875839A (en) * | 2009-04-30 | 2010-11-03 | 中国石油天然气股份有限公司 | Multifunctional preparation for controlling biological corrosion and blockage of oilfield production system |
| CN104068028A (en) * | 2014-06-25 | 2014-10-01 | 国家海洋局天津海水淡化与综合利用研究所 | Composite bacteria and algae inhibitor and application thereof |
| CN104108758A (en) * | 2014-07-31 | 2014-10-22 | 威海翔宇环保科技有限公司 | Inoxidable sludge stripping agent |
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2014
- 2014-11-10 CN CN201410629577.9A patent/CN104304268A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101875839A (en) * | 2009-04-30 | 2010-11-03 | 中国石油天然气股份有限公司 | Multifunctional preparation for controlling biological corrosion and blockage of oilfield production system |
| CN104068028A (en) * | 2014-06-25 | 2014-10-01 | 国家海洋局天津海水淡化与综合利用研究所 | Composite bacteria and algae inhibitor and application thereof |
| CN104108758A (en) * | 2014-07-31 | 2014-10-22 | 威海翔宇环保科技有限公司 | Inoxidable sludge stripping agent |
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| 李建芬等: "环保型杀菌剂二溴次氮基丙酰胺的研究进展"", 《化学工程师》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111511473A (en) * | 2017-07-28 | 2020-08-07 | 美国Ddp特种电子材料公司 | Use of non-oxidizing biocides for selective recovery of valuable metals in froth flotation processes |
| CN108174868A (en) * | 2017-12-31 | 2018-06-19 | 仙桃市中楚化工有限责任公司 | A kind of strong fungicide |
| CN111685116A (en) * | 2020-07-27 | 2020-09-22 | 中国石油天然气股份有限公司 | Compound oilfield bactericide and preparation method, use method and application thereof |
| CN116850789A (en) * | 2023-09-05 | 2023-10-10 | 杭州尚善若水环保科技有限公司 | Cleaning agent mixture and application thereof in cleaning reverse osmosis membrane |
| CN116850789B (en) * | 2023-09-05 | 2024-01-02 | 杭州尚善若水环保科技有限公司 | Cleaning agent mixture and application thereof in cleaning reverse osmosis membrane |
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Application publication date: 20150128 |