CN105104421A - Oilfield bactericide and preparation method therefor - Google Patents
Oilfield bactericide and preparation method therefor Download PDFInfo
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- CN105104421A CN105104421A CN201510495023.9A CN201510495023A CN105104421A CN 105104421 A CN105104421 A CN 105104421A CN 201510495023 A CN201510495023 A CN 201510495023A CN 105104421 A CN105104421 A CN 105104421A
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Abstract
The present invention relates to an oilfield bactericide and a preparation method therefor and belongs to the technical field of oilfield chemicals; The oil field bactericide provided by the present invention comprises the following components: 2-15 parts of organic guanidines by weight, 5-20 parts of organic aldehydes by weight, 5-15 parts of quaternary phosphorus salt by weight, 1-5 parts of a surfactant by weight and 50-84 parts of deionized water by weight. The preparation method comprises: mixing and stirring the components for 1-5 hours and then leaving the mixture to stand for 24 hours to obtain the oil field bactericide provided by the present invention. The oil field bactericide provided by the present invention is good in compatibility with an oilfield water system, is high in flexibility to pH value variation of the system, is high in colony penetration and relatively good in the peeling ability, and has a good corrosion-inhibiting effect and a broad-spectrum bactericidal effect.
Description
Technical field
The present invention relates to a kind of oil field bactericide and preparation method thereof, belong to oil field chemical technical field.
Background technology
At oilfield exploitation, collect defeated and in flood pattern, bacterium causes serious biological corrosion to pipeline and equipment thereof, bring huge loss to production of hydrocarbons, therefore process for sterilizing method and efficient germicide seem particularly important in the application in oil field.
In field produces and flood pattern, there is multiple-microorganism, as sulfate reducing bacteria, iron bacteria, saprophytic bacteria, algae, sulphur bacteria, saccharomycete, mould, protozoa etc., wherein quantity is maximum, and endangering maximum is sulfate reducing bacteria, iron bacteria and saprophytic bacteria.These bacteriums amount reproduction under anaerobic environment in underground or equipment, the metabolite produced has stronger corrosivity, drilling-production equipment, waterflood-transmission line and other metal material heavy corrosion can be caused, and corrosion product easily and in water incrustation ion react and generate dirt, cause line clogging and reservoir damage; And secrete a large amount of stickum, be attached on inner-walls of duct and easily form irony dross, blocking pipe, causes water injection pressure to increase, and water injection rate reduces, and crude output and Quality Down, can cause a serious accident time serious.
And existing bactericide, penetrate stripping ability not strong, bacterium colony inside can not be entered, carry out bactericidal action; To sulfatereducting bacteria, saprophytic bacteria killing effect poor; Not good to conveying crude oil pipeline corrosion inhibition, still need to be improved further, and most commercial bactericide can cause secondary pollution to environment.Therefore, develop a kind of new bactericide, before produced-water reinjection, carry out pretreatment, effectively control the Growth and reproduction of bacterium, avoid or reduce the harm that bacterium is caused, to field produces, there is very important realistic meaning.
Organic guanidine bactericides is nontoxic, tasteless, nonirritant, high temperature resistant, and antibiotic property is good, durable antibacterial effect, there is not carcinogenicity, causes sex change and teratogenesis to human body, organic aldehyde compounds is non-oxidative bactericide conventional at present, and its sterilization mechanism is: aldehyde radical, by the synthesis of protein in anti-bacteria cell membrane, makes protein interior structural change and causes bacterial death, cationic surfactant has adsorption ability, reduce solution surface tension, assemble in the solution, very strong stripping effect is had to foundry loam, the effect of suppression and killing microorganisms, its sterilization mechanism is: by Cation adsorption electronegative bacterium surface again, changes the permeability of bacteria cell wall and sterilization, quaternary alkylphosphonium salt compounds has efficiently, wide spectrum, low dose, low ratio foamed, low toxicity, strong mud is peeled off, there is good antiscaling dispersion effect, to sulfatereducting bacteria, saprophytic bacteria has the advantages such as good sterilization effect, because phosphorus atoms radius ratio nitrogen-atoms is large, polarization is stronger, quaternary alkylphosphonium salt is made more easily to adsorb the bacterium of electronegative son, therefore sterilizing rate is better than quaternary ammonium salt, and quaternary alkylphosphonium salt molecular structure is more stable, do not react with general reductant-oxidant and soda acid, there is the wider pH scope of application, well can make up cationic surfactant in sterilized environment by the deficiency that environment pH affects, bleeding agent significantly can reduce the surface tension of solution, makes bactericide can better penetrate into foundry loam or bacterium colony inside, plays good bactericidal effect.
At present, oil field bactericide composite to organic guanidine class, organic aldehydes, quaternary phosphonium salt, cationic surfactant, bleeding agent and water be have not been reported.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of oil field bactericide and preparation method thereof is provided.
For achieving the above object, the technical solution used in the present invention is:
A kind of oil field bactericide, be made up of the component of following weight portion:
The deionized water of organic guanidine class of 2 ~ 15 weight portions, organic aldehydes of 5 ~ 20 weight portions, the quaternary phosphonium salt of 5 ~ 15 weight portions, the surfactant of 1 ~ 5 weight portion and 50 ~ 84 weight portions.
Described organic guanidine class can select the combination of one or more in dodine, dodecyl guanidine sulfate, Cyanamide, butyl biguanides sulphate, guazatine acetate, poly (hexamethylene) hydrochloride.
The combination of one or more in the described optional formaldehyde of organic aldehydes, paraformaldehyde, acetaldehyde, isobutylaldehyde, glyoxal, glutaraldehyde, acrolein, cinnamic acid, citral, benzaldehyde, o-phthalaldehyde(OPA), acrolein.
The described optional tetrakis hydroxymetyl phosphonium sulfuric of quaternary phosphonium salt, THPC, myristyl tributyl phosphorus chloride, dodecyl triphenyl phosphonium bromide, quaternary alkylphosphonium salt tributyl tetradecylphosphonium chloride, triphenyl phosphate, the chlorination of dodecyloxy methyl tributyl, two alkyl bi-quaternary ammonium salt, containing the chain alkyl bi-quaternary ammonium salt of imidazolyl heterocycle, two (dihydroxy ethyl alkyl) ethylene bi-quaternary ammonium salt, metronidazole bi-quaternary ammonium salt, combination containing one or more in the bi-quaternary ammonium salt of pyridine ring.
Described surfactant is the cationic surfactant of 1 ~ 5 weight portion and the bleeding agent composition of 0.5 ~ 4 weight portion, the combination of one or more in its cationic surfactant optional dodecyloxy methyl tributyl phosphorus chloride, dodecyl benzyl dimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, dodecyl dimethyl benzene oxygen ethyl phosphonium bromide ammonium, myristyl-2-picoline ammonium bromide, polyquaternium, Triclosan, triclocarban; Bleeding agent can select JFC-1, JFC-2, OE-35, succinic acid dicaprylate ichthyodin, succinic acid two tricaprylate ichthyodin, succinic acid di-secondary caprylate ichthyodin, succinic acid dicaprylate ichthyodin, Hensel step the combination of one or more in OT-75, Degussa 5840.
Present invention also offers the preparation method of a kind of oil field bactericide, comprise the steps:
(1) by organic guanidine class, quaternary phosphonium salt, surfactant, deionized water at room temperature mix and blend;
(2) organic aldehydes at the uniform velocity instilled in above-mentioned mixed solution in 5 ~ 10 minutes, stirred 1 ~ 5h, obtained oil field bactericide after leaving standstill 24h.
Described organic aldehydes need keep in Dark Place.
The present invention adopts organic guanidine class, organic aldehydes, quaternary phosphonium salt, cationic surfactant, bleeding agent and the composite oil field bactericide of water, there is compatibility good with profit system, contrasted by onsite application situation, effect used in combination is all better than that one or both are used in combination, show good synergistic effect, good stripping can be had to foundry loam and established bacterium colony, infiltration capacity, by its inner killing bacteria, also there is good environment (as pH) adaptive capacity simultaneously, can also good bacteria growing inhibiting to profit system, play excellent scale inhibition and dispersion effect.
The invention has the beneficial effects as follows: oil field of the present invention bactericide can be applicable to oilfield exploitation, collect in defeated and flood pattern, good with the compatibility of oil field oil water system, to system pH change strong adaptability, strong and stripping ability is better to the penetration power of bacterium colony, can to the bacterium of wrapping up foundry loam and bacterium colony center, play good bactericidal effect, there is the bactericidal effect of good corrosion inhibition and wide spectrum, the toxicity produced when can effectively reduce single use organic aldehyde compounds, synergistic effect can be produced, the bactericidal effect of enhancing system and the adaptability to environment for use, and working concentration is low, avoid current most commercial bactericide can cause secondary pollution possibility to environment.
Embodiment
Be described in further details the present invention below by example, these examples are only used for the present invention is described, do not limit the scope of the invention;
Embodiment 1
A preparation method for oil field bactericide, comprises the steps:
1. get 5g dodine, 12g tetrakis hydroxymetyl phosphonium sulfuric adds in 69g deionized water, stir and make it dissolve completely;
2. get 3g dodecyl dimethyl benzene oxygen ethyl phosphonium bromide ammonium and 1gJFC-1 to add in the aqueous solution that step 1 prepares, stir and make it dissolve completely;
3. get 10g glutaraldehyde, at the uniform velocity dropwise in 5 minutes in above-mentioned solution;
4. after above-mentioned mixed liquor being left standstill 24 hours, be made oil field bactericide.
Embodiment 2
A preparation method for oil field bactericide, comprises the steps:
1. get 4g guazatine acetate, 6g quaternary alkylphosphonium salt tributyl tetradecylphosphonium chloride adds in 75g deionized water, stir and make it dissolve completely;
2. get 4g triclocarban and 1g Degussa 5840 to add in the solution that step 1 prepares, stir and make it dissolve completely;
3. get 10g cinnamic acid, at the uniform velocity dropwise in 10 minutes in above-mentioned solution;
4. after above-mentioned mixed liquor being left standstill 24 hours, be made oil field bactericide.
Embodiment 3
A preparation method for oil field bactericide, comprises the steps:
1. getting 3g poly (hexamethylene) hydrochloride, 4g tetrakis hydroxymetyl phosphonium sulfuric and 7g quaternary alkylphosphonium salt tributyl tetradecylphosphonium chloride adds in 70.5g deionized water, stirs and makes it dissolve completely;
2. get 2g Triclosan, 2g polyquaternium, 0.5g Degussa 5840 add in the solution of step 1, stir and make it dissolve completely;
3. get 7g citral, 4g cinnamic acid, at the uniform velocity dropwise in 5 minutes in above-mentioned solution;
4. after above-mentioned mixed liquor being left standstill 24 hours, be made oil field bactericide.
Embodiment 4
A preparation method for oil field bactericide, comprises the steps:
1. get 1g dodecyl guanidine sulfate, 1g poly (hexamethylene) hydrochloride, two (dihydroxy ethyl alkyl) the ethylene bi-quaternary ammonium salt of 10g add in 79g deionized water, stir and make it dissolve completely;
2. get 3g dodecyl benzyl dimethyl ammonium chloride, 1g Hensel steps OT-75 and add in the solution of step 1, stir and make it dissolve completely;
3. get 5g acrolein, at the uniform velocity dropwise in 5 minutes in above-mentioned solution;
4. after above-mentioned mixed liquor being left standstill 24 hours, be made oil field bactericide.
Embodiment 5
A preparation method for oil field bactericide, comprises the steps:
1. get 6g Cyanamide, the chlorination of 10g dodecyloxy methyl tributyl, 2g metronidazole bi-quaternary ammonium salt add in 62g deionized water, stir and make it dissolve completely;
2. get 2g dodecyl benzyl dimethyl ammonium chloride, 2g succinic acid dicaprylate ichthyodin adds in the solution of step 1, stir and make it dissolve completely;
3. get 10g paraformaldehyde, at the uniform velocity dropwise in 5 minutes in above-mentioned solution;
4. after above-mentioned mixed liquor being left standstill 24 hours, be made oil field bactericide.
Reference examples 1 ~ 3: be respectively organic bromine, quaternary alkylphosphonium salt, dodecyl benzyl dimethyl ammonium chloride (1227), working concentration is 10mg/L.
Performance Detection:
Shown in the bactericidal effect comparing result of the embodiment of the present invention 1 ~ 5 product and reference examples 1 ~ 3 sees the following form:
Table 1 embodiment of the present invention and reference examples bactericidal effect contrast table
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Reference examples 1 | Reference examples 2 | Reference examples 3 | |
| To sulfate reducing bacteria (SRB) sterilizing rate, % | 99.0 | 99.5 | 99.8 | 99.6 | 99.1 | 85.1 | 86.0 | 84.9 |
| To saprophytic bacteria sterilizing rate, % | 98.9 | 99.4 | 99.6 | 99.3 | 99.0 | 60.1 | 69.5 | 68.7 |
| Descaling rate, % | 98 | 98.5 | 99.5 | 98.7 | 98.5 | 64.1 | 64.4 | 64.5 |
As can be known from Table 1, embodiment 1 ~ 5 product has good bactericidal effect and scale effect, and the sterilization of reference examples 1 ~ 3 and scale inhibition effect are all low than the embodiment of the present invention, and embodiment 3 is optimum embodiments of the present invention.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. an oil field bactericide, is characterized in that: be made up of the component of following weight portion:
The deionized water of organic guanidine class of 2 ~ 15 weight portions, organic aldehydes of 5 ~ 20 weight portions, the quaternary phosphonium salt of 5 ~ 15 weight portions, the surfactant of 1 ~ 5 weight portion and 50 ~ 84 weight portions.
2. a kind of oil field bactericide according to claim 1, is characterized in that: described organic guanidine class can select the combination of one or more in dodine, dodecyl guanidine sulfate, Cyanamide, butyl biguanides sulphate, guazatine acetate, poly (hexamethylene) hydrochloride.
3. a kind of oil field bactericide according to claim 1, is characterized in that: the combination of one or more in the described optional formaldehyde of organic aldehydes, paraformaldehyde, acetaldehyde, isobutylaldehyde, glyoxal, glutaraldehyde, acrolein, cinnamic acid, citral, benzaldehyde, o-phthalaldehyde(OPA), acrolein.
4. a kind of oil field bactericide according to claim 1, is characterized in that: the described optional tetrakis hydroxymetyl phosphonium sulfuric of quaternary phosphonium salt, THPC, myristyl tributyl phosphorus chloride, dodecyl triphenyl phosphonium bromide, quaternary alkylphosphonium salt tributyl tetradecylphosphonium chloride, triphenyl phosphate, the chlorination of dodecyloxy methyl tributyl, two alkyl bi-quaternary ammonium salt, the chain alkyl bi-quaternary ammonium salt containing imidazolyl heterocycle, two dihydroxy ethyl alkyl ethylene bi-quaternary ammonium salt, metronidazole bi-quaternary ammonium salt, combination containing one or more in the bi-quaternary ammonium salt of pyridine ring.
5. a kind of oil field bactericide according to claim 1, it is characterized in that: described surfactant is the cationic surfactant of 1 ~ 5 weight portion and the bleeding agent composition of 0.5 ~ 4 weight portion, the combination of one or more in its cationic surfactant optional dodecyloxy methyl tributyl phosphorus chloride, dodecyl benzyl dimethyl ammonium chloride, dodecyl dimethyl benzyl ammonium bromide, dodecyl dimethyl benzene oxygen ethyl phosphonium bromide ammonium, myristyl-2-picoline ammonium bromide, polyquaternium, Triclosan, triclocarban; Bleeding agent can select JFC-1, JFC-2, OE-35, succinic acid dicaprylate ichthyodin, succinic acid two tricaprylate ichthyodin, succinic acid di-secondary caprylate ichthyodin, succinic acid dicaprylate ichthyodin, Hensel step the combination of one or more in OT-75, Degussa 5840.
6. a preparation method for oil field bactericide, is characterized in that: comprise the steps:
(1) by organic guanidine class, quaternary phosphonium salt, surfactant, deionized water at room temperature mix and blend;
(2) organic aldehydes at the uniform velocity instilled in above-mentioned mixed solution in 5 ~ 10 minutes, stirred 1 ~ 5h, obtained oil field bactericide after leaving standstill 24h.
7. the preparation method of a kind of oil field bactericide according to claim 6, is characterized in that: the described organic aldehydes of step (2) need keep in Dark Place.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108605986A (en) * | 2018-05-25 | 2018-10-02 | 苏州佑君环境科技有限公司 | A kind of oil field composite bactericide and preparation method thereof |
| CN108641700A (en) * | 2018-05-18 | 2018-10-12 | 陕西省石油化工研究设计院 | A kind of multiple-effect fracturing aid and the preparation method and application thereof |
| CN108641695A (en) * | 2018-06-13 | 2018-10-12 | 中国石油工程建设有限公司 | A kind of shale gas field corrosion-retarding germicide |
| CN108935463A (en) * | 2018-08-15 | 2018-12-07 | 新疆水处理工程技术研究中心有限公司 | A kind of oil field reinjection water compound disinfectant and preparation method thereof |
| CN109097015A (en) * | 2018-08-27 | 2018-12-28 | 成都劳恩普斯科技有限公司 | A kind of sterilization and anticorrosion auxiliary agent, preparation method and application |
| CN109231291A (en) * | 2018-08-17 | 2019-01-18 | 陕西日新石油化工有限公司 | Three polyquarternium-type oil fields of one kind sterilization desulfurizing agent and preparation method thereof |
| WO2019124340A1 (en) * | 2017-12-22 | 2019-06-27 | 株式会社クラレ | Treatment agent for extraction of crude oil or natural gas |
| CN110269066A (en) * | 2019-06-25 | 2019-09-24 | 天津市职业大学 | Compound disinfectant and its preparation method and application |
| 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 |
| 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 |
| CN113973819A (en) * | 2021-11-25 | 2022-01-28 | 胜利油田海发环保化工有限责任公司 | High-efficiency bactericide and preparation method thereof |
| CN115260149A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Bactericide and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8157010B2 (en) * | 2010-09-21 | 2012-04-17 | Polymer Ventures, Inc. | Treatment of subterranean formations |
| CN103109850A (en) * | 2013-01-30 | 2013-05-22 | 武汉华科特新技术有限公司 | Composite bactericide for efficiently inhibiting iron bacteria |
| CN104054748A (en) * | 2014-06-18 | 2014-09-24 | 南通功成精细化工有限公司 | Sterilization algicide suitable for industrial water system and application of sterilization algicide |
| CN104782651A (en) * | 2015-04-03 | 2015-07-22 | 东营东方化学工业有限公司 | Compositing and compounding process for bactericide for oilfield wastewater reinjection treatment |
| WO2015107490A1 (en) * | 2014-01-16 | 2015-07-23 | Clearwater International, Llc | Anti-gel agent for polyhydroxyetheramines, gel stabilized polyhydroxyaminoether solutions, and methods for making and using same |
-
2015
- 2015-08-13 CN CN201510495023.9A patent/CN105104421A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8157010B2 (en) * | 2010-09-21 | 2012-04-17 | Polymer Ventures, Inc. | Treatment of subterranean formations |
| CN103109850A (en) * | 2013-01-30 | 2013-05-22 | 武汉华科特新技术有限公司 | Composite bactericide for efficiently inhibiting iron bacteria |
| WO2015107490A1 (en) * | 2014-01-16 | 2015-07-23 | Clearwater International, Llc | Anti-gel agent for polyhydroxyetheramines, gel stabilized polyhydroxyaminoether solutions, and methods for making and using same |
| CN104054748A (en) * | 2014-06-18 | 2014-09-24 | 南通功成精细化工有限公司 | Sterilization algicide suitable for industrial water system and application of sterilization algicide |
| CN104782651A (en) * | 2015-04-03 | 2015-07-22 | 东营东方化学工业有限公司 | Compositing and compounding process for bactericide for oilfield wastewater reinjection treatment |
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| 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 |
| 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 |
| WO2019124340A1 (en) * | 2017-12-22 | 2019-06-27 | 株式会社クラレ | Treatment agent for extraction of crude oil or natural gas |
| CN108641700B (en) * | 2018-05-18 | 2020-10-09 | 陕西省石油化工研究设计院 | Multi-effect fracturing additive and preparation method and application thereof |
| CN108641700A (en) * | 2018-05-18 | 2018-10-12 | 陕西省石油化工研究设计院 | A kind of multiple-effect fracturing aid and the preparation method and application thereof |
| CN108605986A (en) * | 2018-05-25 | 2018-10-02 | 苏州佑君环境科技有限公司 | A kind of oil field composite bactericide and preparation method thereof |
| CN108641695A (en) * | 2018-06-13 | 2018-10-12 | 中国石油工程建设有限公司 | A kind of shale gas field corrosion-retarding germicide |
| CN108641695B (en) * | 2018-06-13 | 2020-07-07 | 中国石油工程建设有限公司 | Corrosion inhibition bactericide for shale gas field |
| CN108935463A (en) * | 2018-08-15 | 2018-12-07 | 新疆水处理工程技术研究中心有限公司 | A kind of oil field reinjection water compound disinfectant and preparation method thereof |
| CN109231291A (en) * | 2018-08-17 | 2019-01-18 | 陕西日新石油化工有限公司 | Three polyquarternium-type oil fields of one kind sterilization desulfurizing agent and preparation method thereof |
| CN109097015A (en) * | 2018-08-27 | 2018-12-28 | 成都劳恩普斯科技有限公司 | A kind of sterilization and anticorrosion auxiliary agent, preparation method and application |
| CN109097015B (en) * | 2018-08-27 | 2022-01-11 | 成都劳恩普斯科技有限公司 | Sterilization and corrosion prevention auxiliary agent, and preparation method and application thereof |
| CN110269066A (en) * | 2019-06-25 | 2019-09-24 | 天津市职业大学 | Compound disinfectant and its preparation method and application |
| 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 |
| CN115260149A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Bactericide and preparation method thereof |
| CN115260149B (en) * | 2021-04-30 | 2023-09-26 | 中国石油天然气股份有限公司 | Bactericide and preparation method thereof |
| CN113973819A (en) * | 2021-11-25 | 2022-01-28 | 胜利油田海发环保化工有限责任公司 | High-efficiency bactericide and preparation method thereof |
| CN113973819B (en) * | 2021-11-25 | 2022-12-23 | 胜利油田海发环保化工有限责任公司 | High-efficiency bactericide and preparation method thereof |
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Application publication date: 20151202 |