Biopolymer MA (maleic anhydride)-AMPS (2-acrylamido-2-methyl propane sulfonic acid) water treatment agent and preparation method of biopolymer AM-AMPS water treatment agent

A MA-AMPS, binary copolymer technology, applied in chemical instruments and methods, drilling compositions, etc., can solve problems such as restricting the development of green polymer scale inhibitors, and achieve broad application prospects in the oil field industry market, saving energy time, the effect of reducing production costs

Inactive Publication Date: 2012-10-03
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The published patents of polyaspartic acid and polyepoxysuccinic acid mainly focus on the research on their antiscalant properties, while there are few related patents on the improvement of polymer functional groups based on their synthesis, which limits the green polymer antiscalant properties. The development of scale inhibitors, so it will be of great significance to seek the development of green polymer scale inhibitors

Method used

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  • Biopolymer MA (maleic anhydride)-AMPS (2-acrylamido-2-methyl propane sulfonic acid) water treatment agent and preparation method of biopolymer AM-AMPS water treatment agent
  • Biopolymer MA (maleic anhydride)-AMPS (2-acrylamido-2-methyl propane sulfonic acid) water treatment agent and preparation method of biopolymer AM-AMPS water treatment agent
  • Biopolymer MA (maleic anhydride)-AMPS (2-acrylamido-2-methyl propane sulfonic acid) water treatment agent and preparation method of biopolymer AM-AMPS water treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: add 9.8g maleic anhydride and 30ml deionized water in the four-necked flask that spherical condenser, dropping funnel and thermometer are housed, after treating that maleic anhydride dissolves completely, add 10.35g 2 -Acrylamide-2-methylpropanesulfonic acid, then raise the temperature to 90°C and react for 3 hours. After the reaction, control the temperature at 40°C~50°C and slowly add about 11ml of 50% NaOH aqueous solution, and raise the temperature to 55°C. Add sodium tungstate according to 3.5% of the mass of maleic anhydride. After reacting for 0.5h, slowly add hydrogen peroxide whose mass ratio is 78% of the total amount of reactants. At the same time, use NaOH to adjust the pH of the solution to 6~6.5, and then Carry out epoxidation reaction at 70°C for 1.5h, then raise the temperature to 90°C, add 3.00g of polymerizing agent potassium persulfate, and polymerize for 1h. After stopping the reaction, the solution becomes a light yellow viscous liquid....

Embodiment 2

[0027] Embodiment 2: add 9.8g maleic anhydride and 30ml deionized water in the four-necked flask that spherical condenser, dropping funnel and thermometer are housed, after treating that maleic anhydride dissolves completely, add 10.35g 2 -Acrylamide-2-methylpropanesulfonic acid, then heat up to 90°C, react for 3 hours, after the reaction, control the temperature at 40°C~50°C and slowly add 11ml of 50% NaOH aqueous solution, heat up to 55°C, Add the transition metal catalyst by 3.5% of the mass of maleic anhydride, after reacting for 0.5h, slowly dropwise add the hydrogen peroxide whose mass ratio is 78% of the total amount of reactants, and adjust the pH of the solution to 6~6.5 with NaOH at the same time, and then Carry out epoxidation reaction at 70°C for 1.5h, then raise the temperature to 90°C, add 3.90g of polymerizing agent potassium persulfate, and polymerize for 1h. After the reaction is stopped, the solution is light yellow viscous liquid.

Embodiment 4

[0029] Add 9.8g of maleic anhydride and 30ml of deionized water into a four-necked flask equipped with a spherical condenser, dropping funnel, and thermometer. After the maleic anhydride is completely dissolved, add 10.35 g of 2-acrylamide -2-Methylpropanesulfonic acid, then heat up to 90°C, react for 3 h, after the reaction, control the temperature at 40°C~50°C, slowly add 11ml of 50% NaOH aqueous solution, raise the temperature to 55°C, Add 3.5% of the mass of the dianhydride to a transition metal catalyst, and after 0.5 h of reaction, slowly add hydrogen peroxide with a mass ratio of 78% of the total amount of reactants, while adjusting the pH of the solution to 6~6.5 with NaOH, and then proceed at 70 °C The epoxidation reaction was carried out for 1.5 h, then the temperature was raised to 90 °C, 4.10 g of the polymerizing agent potassium persulfate was added, and the polymerization reaction was carried out for 1 h. After the reaction was stopped, the solution was light yell...

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Abstract

The invention relates to a biopolymer MA (methyl acrylate)-AMPS (2-acrylamido-2-methyl propane sulfonic acid) and a preparation method of the biopolymer AM-AMPS. The biopolymer is a linear copolymer formed according to the steps that MA and AMPS are used as reactants to obtain polymerization monomers, and then, the polymerization reaction is carried out. The biopolymer AM-AMPS provided by the invention belongs to an oil field water treatment agent with excellent performance, in addition, the made product is phosphor-free, nontoxic and harmless, the environment is favorably protected, the product can be stably stored for a long time, and wide oil field industrial market application prospects are realized.

Description

technical field [0001] The invention relates to an oilfield water treatment agent and a preparation method thereof, in particular to a binary copolymer MA-AMPS and a preparation method thereof. Background technique [0002] In the process of oil extraction, due to the serious incompatibility of injection water and formation water and the rapid change of pressure and temperature in the process of oil extraction, the scaling problem has become a major problem in oil extraction engineering. When the temperature, pressure, pH value, etc. of the water injection system change, various scales may form in underground reservoirs, wellbores of oil production wells, and pipelines of surface oil and gas gathering and transportation equipment. In the oil production system, fouling is prone to occur on the sucker rods, tubing and casing of the oil well; in the surface gathering and transportation system, dirt is also easy to adhere to the water injection pipeline, the outlet filter valve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/58C08F222/06C09K8/52
Inventor 刘晓艳苏鹏程顾婷邹君臣戴春雷李欣儒王倩钱昊孙浩源
Owner SHANGHAI UNIV
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