CN106630199A - Preparation method of environment-friendly oilfield reinjection water terpolymer scale inhibitor - Google Patents
Preparation method of environment-friendly oilfield reinjection water terpolymer scale inhibitor Download PDFInfo
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- CN106630199A CN106630199A CN201611040912.7A CN201611040912A CN106630199A CN 106630199 A CN106630199 A CN 106630199A CN 201611040912 A CN201611040912 A CN 201611040912A CN 106630199 A CN106630199 A CN 106630199A
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- water
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- scale inhibitor
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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
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- 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
Abstract
The invention relates to a preparation method of an environment-friendly oilfield reinjection water terpolymer scale inhibitor. The preparation method comprises the following steps: proportionally dissolving itaconic acid (IA), 2-acrylamide-2-methylpropane sulfonic acid (AMPS) and acryloyloxyethyltrimethyl ammonium chloride (DAC) in deionized water to obtain a reaction solution with a certain concentration; introducing nitrogen to remove oxygen in the system while stirring; and adding a water-soluble persulfate initiator for polymerization to obtain an itaconic acid-containing copolymer scale inhibitor. The scale inhibitor has a relatively high scale inhibiting property as well as an excellent corrosion inhibiting dispersion property, the research blank of the macromolecular scale inhibitor in the field is filled, and the application range of the macromolecular scale inhibitor is expanded.
Description
Technical field
The invention belongs to antisludging agent technical field, is related to high-molecular copolymer antisludging agent technology of preparing, and in particular to a kind of
The preparation method of environment-friendly type oil field reinjection water terpolymer antisludging agent.
Background technology
In oil field reinjection water Water-quality control, scale formation is than more serious one kind in the problem that it runs into.In oil gas
In the development process of field, oil field reinjection water is due to power such as the change of the Thermodynamics such as temperature and pressure, flow velocity and liquid manifold states
The problems such as compatibility of factor change and reinjected water and stratum water, easily occur in subsurface reservoir, pit shaft, sleeve pipe etc. inorganic
The deposition of salt, generates dirt, and the generation of scale formation can block Oilfield Pipelines, will bring adverse effect to production.Oil gas field is adopted
The scale problems of oil system and gathering system are each oil field common problems of China.
The antiscaling method that oil field adopts typically has three kinds of Physical, chemical method and Process.Physical mainly has crystal seed to prevent
Dirty technology, ultrasonic antiscaling technology, electromagnetism preventing fouling, are mainly suspended in the crystallite that incrustation ion is formed in the solution molten
In liquid, it is not adhere in pit shaft or pipeline walls.Process is mainly to ensure that compatibility of the injection water with stratum water, control Oil/gas Well
The external condition such as operation speed and producing pressure differential, it is to avoid or delay the formation of dirt and grow up.Process and Physical are due to equipment
Cost is larger, energy consumption is higher, is not extensively applied by oil field.Chemical scale inhibition is mainly injecting carbon dioxide or acid or addition chemistry resistance
Dirty agent is come the formation that prevents or delay inorganic scale.Injecting carbon dioxide or add acid, due to easily formed it is secondary into dirt, easily cause
The shortcomings of corrosive pipeline, also extensively do not applied by oil field.Addition chemical scale-inhibitor is exactly in the injection fluid such as water or drilling fluid
The chemical scale-inhibitor of chelating type or suppressive is added, delays or prevent the formation of dirt, upsetting dirty normal growth, reach scale inhibition
Purpose.
Addition chemical scale-inhibitor is because equipment is simple, plus dosage is little, scale inhibition effect is good, effect duration is permanent, have concurrently
The advantages of inhibition and other performances, widely used by oil field reinjection water system.Domestic commonly used chemical scale-inhibitor has poly- third
Polycarboxylic acid antisludging agent and 1- hydroxy ethylene -1 such as olefin(e) acid, poly, copolymer with acrylic acid or maleic acid as monomer,
The big class of type of organophosphonic acides antisludging agent two such as 1- diphosphonic acid, 2- phosphonobutane -1,2,4- tricarboxylic acids, ATMP.
As the prices such as rising steadily for global oil price, the acrylic acid with oil as main production source rise steadily, with
Acrylic acid is the cost Continued of the polycarboxylic acid antisludging agent of principal monomer.With the development and people's environmental protection of water technology
The enhancing of consciousness, organic phosphine antisludging agent due to water body eutrophication the problems such as it is increasingly serious, using being also subject to great
Limit.In order to substitute acrylic monomerss, the itaconic acid monomer of biofermentation product is selected, research and develop without phosphorus, low toxicity height
Effect antisludging agent, meets the principle and thinking of Green Chemistry, significant to oil field reinjection water system.
At present, it is widely applied by adding water treatment agent to carry out process to oil field reinjection water system.Water treatment agent
Including antisludging agent, corrosion inhibiter, dispersant etc..Water treatment agent can be with effective protection oil field reinjection water equipment, but some medicaments are not
Easily biological-degradable, can cause very big pollution to environment, with the raising of people's environmental consciousness, development environment after discharging with water body
Friendly, Multifunctional efficient water treatment agent becomes study hotspot.
The content of the invention
In view of this, the technical problem to be solved is to provide a kind of environment-friendly type oil field reinjection water ternary polymerization
The preparation method of thing antisludging agent so as to which still there are excellent scale-inhibiting properties in oil field reinjection water water.
The present invention provides a kind of preparation method of environment-friendly type oil field reinjection water terpolymer antisludging agent, including following step
Suddenly：By itaconic acid（IA）, 2- acrylamide-2-methyl propane sulfonics（AMPS）And acrylyl oxy-ethyl-trimethyl salmiac（DAC）
According to mol ratio 1: 0.5 : 0.05 ~ 1 : 0.5 :0.25 ratio dissolves in deionized water, and finite concentration is obtained
Reaction solution, nitrogen is led under agitation with the oxygen in removing system, add water soluble persulfates class initiator 70
~ 90 oCLower polymerization causes polymerization, and polymerization time is 2 ~ 4 h, and product Jing ethanol precipitations, standing obtain described health containing clothing
Acid copolymer antisludging agent.
The component and content of described reaction solution, including：Total monomer accounts for the 35 ~ 45% of reaction solution weight；Initiator
Account for the 0.5 ~ 2.5% of monomer total moles weight.
The water solublity Ammonium persulfate. class initiator is initiator NK-31, and initiator NK-31 is Ammonium persulfate. and persulfuric acid
The mass ratio of the composite initiation system of potassium, wherein Ammonium persulfate. and potassium peroxydisulfate is 3：1.
The present invention has the advantage that compared with prior art and effect：
The raw materials used wide material sources of the present invention, safety and environmental protection, and cost of material is with low cost；The synthetic method of this product has
Low energy consumption, the low advantage of toxicity；The hydroxy-acid group that this product contains not only has good dispersive property but also with good
Retarding performance；The sulfonic acid group that this product contains has good dispersive property；The quaternary ammonium salt structure contained in this product is not
Only there is rust inhibition and also certain sterilization idiocratic.It is good that above advantage can cause this product not only to have in terms of scale inhibition
Good scale inhibition performance but also medium can be slowed down to corrosion of metal, the knot that Shui Zhong Institute of Micro-biology causes is alleviated by bactericidal action
Dirty phenomenon.
The present invention provides a kind of environment-friendly type oil field reinjection water ternary polymerization for having quaternary ammonium salt structure and amphion group concurrently
Thing antisludging agent and preparation method thereof, the antisludging agent not only has higher scale prevention ability, and with excellent inhibition dispersive property,
Compensate for research of the macromolecule antisludging agent in the field blank, expand the range of application of macromolecule antisludging agent.
Specific embodiment
Embodiment 1
In four mouthfuls of reaction bulbs equipped with condensed water, mechanical agitation and nitrogen inlet, by itaconic acid（IA）, 2- acrylamide -2-
Methyl propane sulfonic acid（AMPS）And acrylyl oxy-ethyl-trimethyl salmiac（DAC）According to mol ratio 1: 0.5 :0.1 ratio
Dissolving is in deionized water（Wherein monomer concentration is 33 wt%）.The logical min of nitrogen 30 is risen with the oxygen in removing system before reaction
Temperature is to 50 oC, addition accounts for the initiator NK-31 of monomer gross mass 1.0%, increases the temperature to 80 DEG C, the h of polymerization time 2.5, wherein
The time of Deca initiator was not less than 40 minutes less than 60 minutes.Product Jing ethanol precipitations, stand and obtain described containing clothing
Health acid copolymer antisludging agent；Described initiator NK-31 is the composite initiation system of Ammonium persulfate. and potassium peroxydisulfate, wherein over cure
The mass ratio of sour ammonium and potassium peroxydisulfate is 3：1.
Scale inhibition effect containing itaconic acid copolymer antisludging agent is as follows：
In 250 mL volumetric flasks, a certain amount of calcium chloride solution, dobell's solution, scale inhibition agent solution and carbon are slowly added to successively
Sour hydrogen sodium solution, is subsequently adding distilled water to graduation mark, shakes up, and makes Ca in solution2+Concentration is 250 mg/L, HCO3-Concentration is
762 mg/L.Solution in 250 mL volumetric flasks is transferred in the beaker of 500 mL, then beaker uniform temperature is positioned over into
Water bath with thermostatic control in, after placing certain hour, after being cooled to room temperature, filtered with middling speed quantitative filter paper is dry, pipette 25.00 mL filters
Liquid adds a certain amount of distilled water in 250 mL conical flasks, adds a certain amount of potassium hydroxide solution and calcium-carboxylic acid indicator,
Use disodiumedetate（EDTA）Standard solution is titrated, and is titrated to solution and is changed into sapphirine by aubergine and is defined as end
Point, can reach optimal scale inhibition performance 92.53%.
Embodiment 2
In four mouthfuls of reaction bulbs equipped with condensed water, mechanical agitation and nitrogen inlet, by itaconic acid（IA）, 2- acrylamide -2-
Methyl propane sulfonic acid（AMPS）And acrylyl oxy-ethyl-trimethyl salmiac（DAC）According to mol ratio 1: 0.5 :0.15 ratio
Dissolving is in deionized water（Wherein monomer concentration is 33 wt%）.The logical min of nitrogen 30 is risen with the oxygen in removing system before reaction
Temperature is to 50 oC, addition accounts for the initiator NK-31 of monomer gross mass 1.0%, mentions temperature to 75 DEG C, the h of polymerization time 3, wherein dripping
Plus the time of initiator was not less than 40 minutes less than 60 minutes.Product Jing ethanol precipitations, stand and obtain described health containing clothing
Acid copolymer antisludging agent；
Scale inhibition effect containing itaconic acid copolymer antisludging agent is as follows：
In 250 mL volumetric flasks, a certain amount of calcium chloride solution, dobell's solution, scale inhibition agent solution and carbon are slowly added to successively
Sour hydrogen sodium solution, is subsequently adding distilled water to graduation mark, shakes up, and makes Ca in solution2+Concentration is 250 mg/L, HCO3-Concentration is
762 mg/L.Solution in 250 mL volumetric flasks is transferred in the beaker of 500 mL, then beaker uniform temperature is positioned over into
Water bath with thermostatic control in, after placing certain hour, after being cooled to room temperature, filtered with middling speed quantitative filter paper is dry, pipette 25.00 mL filters
Liquid adds a certain amount of distilled water in 250 mL conical flasks, adds a certain amount of potassium hydroxide solution and calcium-carboxylic acid indicator,
Use disodiumedetate（EDTA）Standard solution is titrated, and is titrated to solution and is changed into sapphirine by aubergine and is defined as end
Point, can reach optimal scale inhibition performance 79.57%.
Embodiment 3
In four mouthfuls of reaction bulbs equipped with condensed water, mechanical agitation and nitrogen inlet, by itaconic acid（IA）, 2- acrylamide -2-
Methyl propane sulfonic acid（AMPS）And acrylyl oxy-ethyl-trimethyl salmiac（DAC）According to mol ratio 1: 0.5 :0.15 ratio
Dissolving is in deionized water（Wherein monomer concentration is 33 wt%）.The logical min of nitrogen 30 is risen with the oxygen in removing system before reaction
Temperature is to 50 oC, addition accounts for the initiator NK-31 of monomer gross mass 1.0%, mentions temperature to 85 DEG C, the h of polymerization time 2.5, wherein
The time of Deca initiator was not less than 40 minutes less than 60 minutes.Product Jing ethanol precipitations, stand and obtain described containing clothing
Health acid copolymer antisludging agent；
Scale inhibition effect containing itaconic acid copolymer antisludging agent is as follows：
In 250 mL volumetric flasks, a certain amount of calcium chloride solution, dobell's solution, scale inhibition agent solution and carbon are slowly added to successively
Sour hydrogen sodium solution, is subsequently adding distilled water to graduation mark, shakes up, and makes Ca in solution2+Concentration is 250 mg/L, HCO3-Concentration is
762 mg/L.Solution in 250 mL volumetric flasks is transferred in the beaker of 500 mL, then beaker uniform temperature is positioned over into
Water bath with thermostatic control in, after placing certain hour, after being cooled to room temperature, filtered with middling speed quantitative filter paper is dry, pipette 25.00 mL filters
Liquid adds a certain amount of distilled water in 250 mL conical flasks, adds a certain amount of potassium hydroxide solution and calcium-carboxylic acid indicator,
Use disodiumedetate（EDTA）Standard solution is titrated, and is titrated to solution and is changed into sapphirine by aubergine and is defined as end
Point, can reach optimal scale inhibition performance 73.67%.
Embodiment 4
In four mouthfuls of reaction bulbs equipped with condensed water, mechanical agitation and nitrogen inlet, by itaconic acid（IA）, 2- acrylamide -2-
Methyl propane sulfonic acid（AMPS）And acrylyl oxy-ethyl-trimethyl salmiac（DAC）According to mol ratio 1: 0.5 :0.2 ratio
Dissolving is in deionized water（Wherein monomer concentration is 33 wt%）.The logical min of nitrogen 30 is risen with the oxygen in removing system before reaction
Temperature is to 50 oC, addition accounts for the initiator NK-31 of monomer gross mass 1.0%, rises high-temperature to 85 DEG C, the h of polymerization time 2, wherein dripping
Plus the time of initiator was not less than 40 minutes less than 60 minutes.Product Jing ethanol precipitations, stand and obtain described health containing clothing
Acid copolymer antisludging agent；
Scale inhibition effect containing itaconic acid copolymer antisludging agent is as follows：
In 250 mL volumetric flasks, a certain amount of calcium chloride solution, dobell's solution, scale inhibition agent solution and carbon are slowly added to successively
Sour hydrogen sodium solution, is subsequently adding distilled water to graduation mark, shakes up, and makes Ca in solution2+Concentration is 250 mg/L, HCO3-Concentration is
762 mg/L.Solution in 250 mL volumetric flasks is transferred in the beaker of 500 mL, then beaker uniform temperature is positioned over into
Water bath with thermostatic control in, after placing certain hour, after being cooled to room temperature, filtered with middling speed quantitative filter paper is dry, pipette 25.00 mL filters
Liquid adds a certain amount of distilled water in 250 mL conical flasks, adds a certain amount of potassium hydroxide solution and calcium-carboxylic acid indicator,
Use disodiumedetate（EDTA）Standard solution is titrated, and is titrated to solution and is changed into sapphirine by aubergine and is defined as end
Point, can reach optimal scale inhibition performance 78.24%.
Claims (3)
1. a kind of preparation method of environment-friendly type oil field reinjection water terpolymer antisludging agent, it is characterised in that comprise the steps：
By itaconic acid（IA）, 2- acrylamide-2-methyl propane sulfonics（AMPS）And acrylyl oxy-ethyl-trimethyl salmiac（DAC）According to
Mol ratio 1: 0.5 : 0.05 ~ 1 : 0.5 :0.25 ratio dissolves in deionized water, is obtained certain density anti-
Solution is answered, nitrogen is led under agitation with the oxygen in removing system, add water soluble persulfates class initiator 70 ~ 90 oCThe lower initiation polymerization that is polymerized, polymerization time is 2 ~ 4 h, and product Jing ethanol precipitations, standing are common containing itaconic acid that is, described in acquisition
Polymers antisludging agent.
2. the preparation method of a kind of environment-friendly type oil field reinjection water terpolymer antisludging agent according to claim 1, it is special
Levy be described reaction solution component and content, including：Total monomer accounts for the 35 ~ 45% of reaction solution weight；Initiator is accounted for
The 0.5 ~ 2.5% of monomer total moles weight.
3. the preparation method of a kind of environment-friendly type oil field reinjection water terpolymer antisludging agent according to claim 1, it is special
Levy is that the water solublity Ammonium persulfate. class initiator is that initiator NK-31, initiator NK-31 are Ammonium persulfate. and potassium peroxydisulfate
Composite initiation system, the mass ratio of wherein Ammonium persulfate. and potassium peroxydisulfate is 3：1.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759492A (en) * | 2019-11-07 | 2020-02-07 | 西南石油大学 | Scale inhibition bactericide for oilfield produced water |
| CN113023909A (en) * | 2021-03-23 | 2021-06-25 | 中海油(天津)油田化工有限公司 | Phosphorus-free antiscale agent for oil field and preparation method thereof |
| CN113493683A (en) * | 2021-08-04 | 2021-10-12 | 东方宝麟科技发展(北京)有限公司 | Long-acting scale-inhibition wax-control composite synergist and preparation method thereof |
| CN114426339A (en) * | 2021-12-30 | 2022-05-03 | 中国石油化工股份有限公司 | Oil field barium sulfate dispersion scale inhibitor and preparation method thereof |
| CN114806524A (en) * | 2022-04-08 | 2022-07-29 | 西南石油大学 | Scale inhibitor for oilfield extrusion process, preparation method thereof, casing agent for oilfield extrusion process and application thereof |
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| CN102689992A (en) * | 2012-02-22 | 2012-09-26 | 浙江省海洋开发研究院 | Terpolymer antisludging agent and preparation process thereof |
| CN104558369A (en) * | 2014-12-29 | 2015-04-29 | 陕西长隆科技发展有限公司 | Preparation method of amphoteric clay inhibitor with low relative molecular mass |
| CN105152367A (en) * | 2015-10-10 | 2015-12-16 | 无棣华信石油技术服务有限公司 | Environment-friendly oilfield reinjection water corrosion and scale inhibitor and preparation method thereof |
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2016
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102689992A (en) * | 2012-02-22 | 2012-09-26 | 浙江省海洋开发研究院 | Terpolymer antisludging agent and preparation process thereof |
| CN104558369A (en) * | 2014-12-29 | 2015-04-29 | 陕西长隆科技发展有限公司 | Preparation method of amphoteric clay inhibitor with low relative molecular mass |
| CN105152367A (en) * | 2015-10-10 | 2015-12-16 | 无棣华信石油技术服务有限公司 | Environment-friendly oilfield reinjection water corrosion and scale inhibitor and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110759492A (en) * | 2019-11-07 | 2020-02-07 | 西南石油大学 | Scale inhibition bactericide for oilfield produced water |
| CN110759492B (en) * | 2019-11-07 | 2022-03-25 | 西南石油大学 | Scale inhibition bactericide for oilfield produced water |
| CN113023909A (en) * | 2021-03-23 | 2021-06-25 | 中海油(天津)油田化工有限公司 | Phosphorus-free antiscale agent for oil field and preparation method thereof |
| CN113493683A (en) * | 2021-08-04 | 2021-10-12 | 东方宝麟科技发展(北京)有限公司 | Long-acting scale-inhibition wax-control composite synergist and preparation method thereof |
| CN114426339A (en) * | 2021-12-30 | 2022-05-03 | 中国石油化工股份有限公司 | Oil field barium sulfate dispersion scale inhibitor and preparation method thereof |
| CN114806524A (en) * | 2022-04-08 | 2022-07-29 | 西南石油大学 | Scale inhibitor for oilfield extrusion process, preparation method thereof, casing agent for oilfield extrusion process and application thereof |
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Application publication date: 20170510 |