CN105010387A - Preparation technology of improved oil field composite bactericide - Google Patents
Preparation technology of improved oil field composite bactericide Download PDFInfo
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Abstract
The invention relates to a preparation technology of an improved oil field composite bactericide. The technical scheme is that the preparation technology comprises the following steps in parts by weight: (1) adding 15-20 parts of BC-2 multiple quaternary ammonium salt bactericide, 8-10 parts of polyhexamethylene guanidine , 8-10 parts of tetrakis hydroxymethyl phosphonium sulfate, 2-5 parts of methylisothiazolinone, 1-3 parts of medical metronidazole, 1-3 parts of dithiocyano-methane, 8-10 parts of glutaraldehyde, 1-2 parts of isopropanol, 1-2 parts of ethylene glycol and 0.1-0.5 part of nonylphenol polyoxyethylene ether-10 into a preparation kettle, then adding 30-40 parts of water, and sufficiently stirring; and (2) adding a sodium hydroxide aqueous solution, and adjusting the pH value to be between 7 and 9. The preparation technology has the beneficial effects that the bactericide also reaches the following requirements while solving the problem of bacterial resistance: (1) the bactericide is high in bactericidal ability and low in lethal concentration; (2) the bactericide is wide in application range and can be resistant to polymer-contained sewage; (3) the bactericide is good in water solubility, convenient to add and good in compatibility with other water treatment agents; and (4) the bactericide is low in cost.
Description
Technical field
The present invention relates to oil field chemical agent and preparing technical field, particularly the preparing process of a kind of modified oil field composite sterilizing agent.
Background technology
In field produces flood pattern, there is multiple harmful bacterial micro-organism, modal is sulfate reducing bacteria (SRB), saprophytic bacteria (TGB) and iron bacteria (IB), and wherein maximum to oilfield transportation system harm is SRB.These bacteriums amount reproduction under anaerobic environment in underground or equipment, the series of problems such as very easily cause metal erosion, formation blockage, chemical agent rotten, particularly along with two, the development of tertiary oil recovery technology, oil field is noted, adopt the water yield constantly increases, add the application of polymer flooding, create advantage all to bacterium breeding in systems in which, make the harm of bacterium day by day serious.Therefore, all will carry out sterilization processing before produced-water reinjection, bactericide conventional at present has oxidized form, quaternary ammonium salt, heterocyclic compound and aldehydes four kinds.Owing to being subject to the restriction of the factors such as environment, cost and pesticide resistance, invent a kind of efficient, low toxicity, water treatment bactericide in oil field with low cost are very important.
Chinese patent literature publication number 103340202A, patent name is " a kind of preparation method of high-efficiency oilfield bactericide ", comprises the following steps preparation: solvent is added reactor, opens heating, by polyalcohol or/and phenol joins reactor; Temperature controls to drip tertiary amine below 50 DEG C, dropwises, and fully stirs insulation 10min; Improve temperature, drip epoxychloropropane, dropwise, insulation reaction; Add reverse osmosis water and regulate active matter content.Advantage of the present invention has economic benefits and social benefits bactericidal property; Effectively can solve the resistance problems of sulfate reducing bacteria; And there is good compatibility, can effectively kill and suppress oil field sulfate reductive bacterium.
Chinese patent literature publication number is 103478164A, and patent name is " a kind of oil field sewage bactericide and preparation method thereof ".This oil field sewage bactericide is mixed according to following mass percent by nano titanium dioxide powder, crosslinking agent, surfactant and oxidant: the nano titanium dioxide powder of 10 ~ 15%, the crosslinking agent of 0.5 ~ 2%, the surfactant of 5 ~ 10%, oxidant, the surplus of 5 ~ 10% are water.This bactericide can be deposited on the place such as tube wall, bent angle with liquid stream, slowly dilute host, lasting medicine, corrosion-free to pipeline, annotate after 18 days and still more than 90% is reached to the comprehensive sterilizing rate of sulfate reducing bacteria, saprophytic bacteria and iron bacteria, and the medicament filling cycle is 15 ~ 25 days, is 10 ~ 15 times of General Medicine, greatly slow down manipulation strength and reduce cost.
But above-mentioned open source literature all exists some such or such technical problems, as environmental pollution, adds the problems such as cost, do not obtain large-scale promotion application in oil field.
Summary of the invention
Object of the present invention is exactly in view of the foregoing defects the prior art has, provides a kind of preparing process of efficient, low toxicity, modified oil field composite sterilizing agent with low cost.
The preparing process of a kind of modified oil field composite sterilizing agent that the present invention mentions, its technical scheme comprises the following steps, by weight:
1) in preparation still, add the polyoxyethylene nonylphenol ether-10 of the BC-2 multi-quaternary ammonium salt bactericide of 15 ~ 20 parts, the polyhexamethylene guanide of 8 ~ 10 parts, the tetrakis hydroxymetyl phosphonium sulfuric of 8 ~ 10 parts, the methylisothiazolinone of 2 ~ 5 parts, the medical metronidazole of 1 ~ 3 part, the dithiocyano-methane of 1 ~ 3 part, the glutaraldehyde of 8 ~ 10 parts, the isopropyl alcohol of 1 ~ 2 part, the ethylene glycol of 1 ~ 2 part and 0.1 ~ 0.5 part, add the water of 30 ~ 40 parts again, fully stir;
2) add sodium hydrate aqueous solution, adjust ph is between 7 ~ 9;
3) solution obtained is modified oil field of the present invention composite sterilizing agent.
The making step of above-mentioned BC-2 multi-quaternary ammonium salt bactericide is as follows, by weight:
1) in reactor, add the monomethylamine aqueous solution of 5 ~ 7 parts, under stirring, add the epoxychloropropane of 8 ~ 10 parts, be warming up to 45 DEG C-55 DEG C, isothermal reaction 4h-6h;
2) continue to be warming up to 65 DEG C-75 DEG C, add the dodeca-tertiary amine of 25 ~ 30 parts, isothermal reaction 3h-5h;
3) continue to be warming up to 75 DEG C-85 DEG C, add the benzyl chloride of 8 ~ 10 parts, isothermal reaction 1h-3h;
4) after reaction terminates, add the water of 40 ~ 60 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide.
Preferably, a kind of making step of above-mentioned BC-2 multi-quaternary ammonium salt bactericide is as follows, by weight:
1) in reactor, add the monomethylamine aqueous solution of 5 ~ 7 parts, under stirring, add the epoxychloropropane of 8 ~ 10 parts, be warming up to 50 DEG C, isothermal reaction 5h;
2) continue to be warming up to 70 DEG C, add the dodeca-tertiary amine of 25 ~ 30 parts, isothermal reaction 4h;
3) continue to be warming up to 80 DEG C, add the benzyl chloride of 8 ~ 10 parts, isothermal reaction 2h;
4) after reaction terminates, add the water of 40 ~ 60 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide.
Above-mentioned poly (hexamethylene) hydrochloride, No. CAS is 57028-96-3, is a kind of cationic polymer.
Above-mentioned tetrakis hydroxymetyl phosphonium sulfuric, No. CAS is 55566-30-8, is a kind of quaternary alkylphosphonium salt, only has the side chain that short.
Above-mentioned methylisothiazolinone, No. CAS is 2682-20-4, is a kind of efficient germicide.
Above-mentioned medical metronidazole, No. CAS is 443-48-1, is a kind of nitroimidazole antibiotics, is metronidazole again, white or creamy white crystals powder, fusing point 158-160.Be dissolved in hot water, be slightly dissolved in ethanol, be slightly soluble in water or chloroform, be atomicly dissolved in ether.Bitter and slightly salty.To the powerful antibacterial action of most of anaerobic bacteria tools.
Above-mentioned dithiocyano-methane, No. CAS is 6317-18-6, also known as methylene bistheocyanate, is called for short MBT.Light yellow or connect subdiaphanous acicular crystal.Be a kind of bactericide of high-efficiency broad spectrum function admirable, have stronger kill capability to bacterium, mould, algae.
Above-mentioned glutaraldehyde, No. CAS is 111-30-8, pure glutaraldehyde is colourless transparent oil liquid, soluble in water and the organic solvent such as ether, ethanol, be a kind of chemosterilant of quick-acting, wide spectrum, the glutaraldehyde water solution of low concentration can show activity to many microorganisms at normal temperatures, to the bacterium of reproduction type, virus, mycobacterium, disease cause fungi and bacterial spore have high degree of sterilization effect, and very low to people's toxicity.
Above-mentioned isopropyl alcohol, No. CAS is 67-63-0, is the simplest secondary alcohol, and is one of isomer of normal propyl alcohol.Be a kind of colourless flammable liquid having overpowering odor, have the smell like ethanol and acetone mixture, its smell is little.
Above-mentioned ethylene glycol, No. CAS is 107-20-1, and ethylene glycol, also known as glycol, is the simplest aliphatic dihydroxy alcohol, has the chemical property of alcohols.
No.-10, CAS, above-mentioned polyoxyethylene nonylphenol ether is 14409-72-4, is a kind of nonionic surface active agent, and a small amount of interpolation is used as stabilizing agent.
The invention has the beneficial effects as follows: this bactericide, while solution resistance problem, also requires to reach following requirement: 1) sterilizing ability is strong, and lethal concentration is low; 2) applied widely, ability polymer-bearing waste-water; 3) good water solubility, adds conveniently, good with other water treatment agent compatibilities; 4) with low cost.
Embodiment
Embodiment 1: a kind of modified oil field composite sterilizing agent that the present invention mentions, its preparation method is:
1) in reactor, add the monomethylamine aqueous solution of 5 parts, under stirring, add the epoxychloropropane of 8 parts, be warming up to 50 DEG C, isothermal reaction 4-6h;
2) continue to be warming up to 70 DEG C, add the dodeca-tertiary amine of 25 parts, isothermal reaction 3-5h;
3) continue to be warming up to 80 DEG C, add the benzyl chloride of 8 parts, isothermal reaction 1-3h;
4) after reaction terminates, add the water of 54 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide;
5) in preparation still, add the polyoxyethylene nonylphenol ether-10 of the BC-2 multi-quaternary ammonium salt bactericide of 20 parts, the polyhexamethylene guanide of 10 parts, the tetrakis hydroxymetyl phosphonium sulfuric of 10 parts, the methylisothiazolinone of 5 parts, the medical metronidazole of 3 parts, the dithiocyano-methane of 3 parts, the glutaraldehyde of 10 parts, the isopropyl alcohol of 2 parts, the ethylene glycol of 1.5 parts and 0.5 part, add the water of 35 parts again, fully stir;
6) add sodium hydrate aqueous solution, adjust ph is between 7 ~ 9;
7) solution obtained is modified oil field of the present invention composite sterilizing agent.
Embodiment 2: a kind of modified oil field composite sterilizing agent that the present invention mentions, its preparation method is:
1) in reactor, add the monomethylamine aqueous solution of 7 parts, under stirring, add the epoxychloropropane of 10 parts, be warming up to 50 DEG C, isothermal reaction 5h;
2) continue to be warming up to 70 DEG C, add the dodeca-tertiary amine of 30 parts, isothermal reaction 4h;
3) continue to be warming up to 80 DEG C, add the benzyl chloride of 10 parts, isothermal reaction 2h;
4) after reaction terminates, add the water of 60 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide;
5) in preparation still, add the polyoxyethylene nonylphenol ether-10 of the BC-2 multi-quaternary ammonium salt bactericide of 18 parts, the polyhexamethylene guanide of 9 parts, the tetrakis hydroxymetyl phosphonium sulfuric of 9 parts, the methylisothiazolinone of 4 parts, the medical metronidazole of 2 parts, the dithiocyano-methane of 2 parts, the glutaraldehyde of 9 parts, the isopropyl alcohol of 1.5 parts, the ethylene glycol of 1.5 parts and 0.3 part, add the water of 37 parts again, fully stir;
6) add sodium hydrate aqueous solution, adjust ph is between 7 ~ 9;
7) solution obtained is modified oil field of the present invention composite sterilizing agent.
Embodiment 3: a kind of modified oil field composite sterilizing agent that the present invention mentions, its preparation method is:
1) in reactor, add the monomethylamine aqueous solution of 6 parts, under stirring, add the epoxychloropropane of 9 parts, be warming up to 50 DEG C, isothermal reaction 5h;
2) continue to be warming up to 70 DEG C, add the dodeca-tertiary amine of 28 parts, isothermal reaction 4h;
3) continue to be warming up to 80 DEG C, add the benzyl chloride of 9 parts, isothermal reaction 2h;
4) after reaction terminates, add the water of 52 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide;
5) in preparation still, add the polyoxyethylene nonylphenol ether-10 of the BC-2 multi-quaternary ammonium salt bactericide of 20 parts, the polyhexamethylene guanide of 10 parts, the tetrakis hydroxymetyl phosphonium sulfuric of 10 parts, the methylisothiazolinone of 5 parts, the medical metronidazole of 3 parts, the dithiocyano-methane of 3 parts, the glutaraldehyde of 10 parts, the isopropyl alcohol of 2 parts, the ethylene glycol of 2 parts and 0.5 part, add the water of 40 parts again, fully stir;
6) add sodium hydrate aqueous solution, adjust ph is between 7 ~ 9;
7) solution obtained is modified oil field of the present invention composite sterilizing agent.
Experimental example 1:
The bactericidal property of this experimental example to embodiment 1-3 gained modified oil field composite sterilizing agent detects.Result is as shown in table 1.
Detection method: choose certain oil recovery factory of triumph and stick together two sewage plants (polymer-bearing waste-water) with the water of six sewage plants of sticking together as experimental water.Water sample should carry out bactericidal effect within 24 h after acquisition as early as possible.Test as do not got back to laboratory in 24 h for some reason, then in water sample, add Nutrient medium cultivation 24h ~ 72h test, Nutrient medium addition is recommended as (1 ~ 2) mL/L.In sewage, the optimum growth temp of bacterium is generally 30 DEG C ~ 50 DEG C, and winter should note insulation after on-the-spot water sampling.The bactericidal property of embodiment 1-3 gained modified oil field composite sterilizing agent is investigated with reference to Q/SH 1020 0688-2013 " oil field produced water treatment bactericide general technical specifications ".
The bactericidal property testing result of table 1 embodiment 1-3 gained modified oil field composite sterilizing agent
As can be seen from Table 1, the bactericidal property of modified oil field composite sterilizing agent to common sewage and polymer-bearing waste-water of embodiment 1 ~ 3 gained is all very excellent, all exceeded the requirement of China PetroChemical Corporation company standard Q/SH 1020 0688-2013, wherein the performance of embodiment 3 is best.
Experimental example 2:
The compatibility of this experimental example to embodiment 1-3 gained modified oil field composite sterilizing agent and corrosion inhibiter, antisludging agent is investigated, and result as Table 2,3.Investigation method: investigate the inhibition after compatibility and anti-scaling property with reference to Q/SHCG 40-2012 " oil field produced water treatment corrosion inhibiter technical requirement " and Q/SH 1020 1452-2013 " oil field produced water treatment scale preventative general technical specifications ", bactericidal property (-representative is killed, and X representative is not killed) after composite with reference to Q/SH 1020 0688-2013 " oil field produced water treatment bactericide general technical specifications " investigation enforcement.Wherein corrosion inhibiter and scale preventative are all existing product, are produced by our company.
The compatibility experimental result of table 2 embodiment 1-3 gained modified oil field composite sterilizing agent and corrosion inhibiter
The compatibility experimental result of table 3 embodiment 1-3 gained modified oil field composite sterilizing agent and scale preventative
As can be seen from table 2,3, modified oil field composite sterilizing agent of the present invention and corrosion inhibiter carry out composite after, do not affect the corrosion inhibition of corrosion inhibiter, even slightly strengthening simultaneously does not affect bactericidal property of the present invention yet; New and effective composite sterilizing agent of the present invention and scale preventative carry out composite after, the anti-scaling property not affecting scale preventative does not have influence on the bactericidal property of bactericide simultaneously yet.Therefore, modified oil field composite sterilizing agent of the present invention and oil field flood pattern Chinese medicine have good compatibility.
The above, be only part preferred embodiment of the present invention, any those of ordinary skill in the art all may utilize the technical scheme correct of above-mentioned elaboration or are revised as equivalent technical scheme.Therefore, any simple modification of carrying out according to technical scheme of the present invention or substitute equivalents, belong to the scope of protection of present invention to the greatest extent.
Claims (3)
1. a preparing process for modified oil field composite sterilizing agent, is characterized in that: comprise the following steps, by weight:
The polyoxyethylene nonylphenol ether-10 of the BC-2 multi-quaternary ammonium salt bactericide of 15 ~ 20 parts, the polyhexamethylene guanide of 8 ~ 10 parts, the tetrakis hydroxymetyl phosphonium sulfuric of 8 ~ 10 parts, the methylisothiazolinone of 2 ~ 5 parts, the medical metronidazole of 1 ~ 3 part, the dithiocyano-methane of 1 ~ 3 part, the glutaraldehyde of 8 ~ 10 parts, the isopropyl alcohol of 1 ~ 2 part, the ethylene glycol of 1 ~ 2 part and 0.1 ~ 0.5 part is added in preparation still, add the water of 30 ~ 40 parts again, fully stir;
Add sodium hydrate aqueous solution, adjust ph is between 7 ~ 9;
The solution obtained is modified oil field of the present invention composite sterilizing agent.
2. the preparing process of modified oil field according to claim 1 composite sterilizing agent, is characterized in that: the making step of described BC-2 multi-quaternary ammonium salt bactericide is as follows, by weight:
In reactor, add the monomethylamine aqueous solution of 5 ~ 7 parts, under stirring, add the epoxychloropropane of 8 ~ 10 parts, be warming up to 45 DEG C-55 DEG C, isothermal reaction 4h-6h;
Continue to be warming up to 65 DEG C-75 DEG C, add the dodeca-tertiary amine of 25 ~ 30 parts, isothermal reaction 3h-5h;
Continue to be warming up to 75 DEG C-85 DEG C, add the benzyl chloride of 8 ~ 10 parts, isothermal reaction 1h-3h;
After reaction terminates, add the water of 40 ~ 60 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide.
3. the preparing process of modified oil field according to claim 1 composite sterilizing agent, is characterized in that: a kind of making step of described BC-2 multi-quaternary ammonium salt bactericide is as follows, by weight:
In reactor, add the monomethylamine aqueous solution of 5 ~ 7 parts, under stirring, add the epoxychloropropane of 8 ~ 10 parts, be warming up to 50 DEG C, isothermal reaction 5h;
Continue to be warming up to 70 DEG C, add the dodeca-tertiary amine of 25 ~ 30 parts, isothermal reaction 4h;
Continue to be warming up to 80 DEG C, add the benzyl chloride of 8 ~ 10 parts, isothermal reaction 2h;
After reaction terminates, add the water of 40 ~ 60 parts, stir, the product that reaction generates is BC-2 multi-quaternary ammonium salt bactericide.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106719772A (en) * | 2016-11-22 | 2017-05-31 | 俞潮军 | A kind of environment-friendly high-efficiency compound disinfectant |
| CN108902211A (en) * | 2018-07-27 | 2018-11-30 | 黄志优 | A kind of fungicide for oil field waste |
| CN110141970A (en) * | 2018-12-11 | 2019-08-20 | 德蓝水技术股份有限公司 | Fungicide is used in reverse osmosis membrane cleaning |
| US10563042B2 (en) | 2016-12-14 | 2020-02-18 | Ecolab Usa Inc. | Quaternary cationic polymers |
| CN112021323A (en) * | 2020-08-21 | 2020-12-04 | 天津正达科技有限责任公司 | Bactericide for offshore oilfield reinjection water and preparation method thereof |
| CN113652139A (en) * | 2021-07-23 | 2021-11-16 | 国家石油天然气管网集团有限公司 | Anti-corrosion and anti-bacterial coating for upper surface of bottom plate of crude oil storage tank and preparation method thereof |
| US11427964B2 (en) | 2018-06-12 | 2022-08-30 | Ecolab Usa Inc. | Quaternary cationic surfactants and polymers for use as release and coating modifying agents in creping and tissue papers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1172224A1 (en) * | 1999-03-29 | 2002-01-16 | Nicca Chemical Co., Ltd. | Substrate of recording |
| CN102511479A (en) * | 2011-12-06 | 2012-06-27 | 孙安顺 | Dual-cation bactericide, preparation method and application thereof |
| CN103340202A (en) * | 2013-06-03 | 2013-10-09 | 山东省泰和水处理有限公司 | Preparation method for high-efficiency oilfield bactericide |
-
2015
- 2015-07-08 CN CN201510396774.5A patent/CN105010387B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1172224A1 (en) * | 1999-03-29 | 2002-01-16 | Nicca Chemical Co., Ltd. | Substrate of recording |
| CN102511479A (en) * | 2011-12-06 | 2012-06-27 | 孙安顺 | Dual-cation bactericide, preparation method and application thereof |
| CN103340202A (en) * | 2013-06-03 | 2013-10-09 | 山东省泰和水处理有限公司 | Preparation method for high-efficiency oilfield bactericide |
Non-Patent Citations (2)
| Title |
|---|
| 薛瑞 等: "油田杀菌剂研究现状与展望", 《工业水处理》 * |
| 黄新宇: "盐酸聚六亚甲基胍消毒剂研究进展", 《中国卫生工程学》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106719772A (en) * | 2016-11-22 | 2017-05-31 | 俞潮军 | A kind of environment-friendly high-efficiency compound disinfectant |
| US10563042B2 (en) | 2016-12-14 | 2020-02-18 | Ecolab Usa Inc. | Quaternary cationic polymers |
| US11319427B2 (en) | 2016-12-14 | 2022-05-03 | Ecolab Usa Inc. | Quaternary cationic polymers |
| US11427964B2 (en) | 2018-06-12 | 2022-08-30 | Ecolab Usa Inc. | Quaternary cationic surfactants and polymers for use as release and coating modifying agents in creping and tissue papers |
| CN108902211A (en) * | 2018-07-27 | 2018-11-30 | 黄志优 | A kind of fungicide for oil field waste |
| CN110141970A (en) * | 2018-12-11 | 2019-08-20 | 德蓝水技术股份有限公司 | Fungicide is used in reverse osmosis membrane cleaning |
| CN112021323A (en) * | 2020-08-21 | 2020-12-04 | 天津正达科技有限责任公司 | Bactericide for offshore oilfield reinjection water and preparation method thereof |
| CN113652139A (en) * | 2021-07-23 | 2021-11-16 | 国家石油天然气管网集团有限公司 | Anti-corrosion and anti-bacterial coating for upper surface of bottom plate of crude oil storage tank and preparation method thereof |
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