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Octadecanol methyl propionate, preparation method thereof, water-soluble thickener and preparation method of water-soluble thickener

A technology of alcohol methyl propionate and water-soluble thickener, applied in the field of thickener, can solve problems such as poor adaptability, inability to meet oil field development, enhanced oil recovery, inability to meet application requirements, etc., and achieves good viscosity, The method is simple and easy to implement and the effect of the method is simple

Inactive Publication Date: 2019-06-21
KARAMAY ZHENGCHENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a stearyl methyl propionate and its preparation method, a water-soluble thickener and its preparation method, which overcomes the deficiencies of the prior art above, and can effectively solve the problems of current oil field development and enhanced oil recovery The polymer thickener used in the process has poor adaptability and cannot meet the purpose of oilfield development and enhanced recovery, especially the application requirements of oilfield sewage and water with a salinity of 150,000 mg / L

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1, the octadecyl alcohol methyl propionate is obtained according to the following preparation method: first step, first prepare stearyl alcohol and methacrylic acid according to the molar ratio of 1:1, and then add the prepared stearyl alcohol to the reaction vessel stearyl alcohol, and heat stearyl alcohol to 45°C to 55°C, then continue to add the prepared methacrylic acid to the reaction vessel under stirring and stir evenly; in the second step, continue to add A sulfuric acid solution with 1.1% of the total mass of stearyl alcohol and methacrylic acid, slowly warming up to 85°C to 95°C, and reacting for 4 hours to 6 hours; the third step, then continue to add the mass of stearyl alcohol and methacrylic acid to the reaction vessel The total amount of 1% nonylphenol polyoxyethylene ether is reacted for 40 minutes to 70 minutes; the fourth step, after the completion of the third step reaction, cool the material in the reaction vessel to below 50°C to obtain stear...

Embodiment 2

[0017] Example 2, the octadecyl alcohol methyl propionate is obtained according to the following preparation method: first step, first prepare stearyl alcohol and methacrylic acid according to the molar ratio of 1:1, and then add the prepared stearyl alcohol into the reaction vessel stearyl alcohol, and heat stearyl alcohol to 45°C or 55°C, then continue to add the prepared methacrylic acid to the reaction vessel under stirring and stir evenly; the second step, then continue to add to the reaction vessel A sulfuric acid solution of 1.1% of the total mass of stearyl alcohol and methacrylic acid, slowly warming up to 85°C or 95°C, and reacting for 4 hours or 6 hours; the third step, then continue to add the mass of stearyl alcohol and methacrylic acid to the reaction vessel The total amount of 1% nonylphenol polyoxyethylene ether is reacted for 40 minutes or 70 minutes; the fourth step, after the completion of the third step reaction, cool the material in the reaction vessel to b...

Embodiment 3

[0018] Embodiment 3, the water-soluble thickener prepared by the stearyl methyl propionate described in embodiment 1 or embodiment 2, its raw materials include by weight percentage: 3% to 20% acrylamide, 2% to 20% 2-acrylamido-2-methylpropanesulfonic acid, 3% to 15% stearyl methyl propionate, 1% to 10% cetyltrimethylammonium chloride, 0.01% to 0.2% sodium bisulfite, 0.02% to 0.4% ammonium persulfate, 0% to 0.002% disodium edetate, 0% to 6% urea, 3% to 10% carbonic acid Sodium and balance deionized water.

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Abstract

The invention relates to the technical field of thickeners, in particular to octadecanol methyl propionate, a preparation method thereof, a water-soluble thickener and a preparation method of the water-soluble thickener. The water-soluble thickener comprises raw materials including acrylamide, 2-acrylamide-2-methallyl sulfonate, octadecanol methyl propionate, hexadecyl trimethyl ammonium chloride,sodium bisulfite, ammonium persulfate, ethylene diamine tetraacetic acid, urea, sodium carbonate and deionized water. The preparation methods of the octadecanol methyl propionate and the water-soluble thickener are simple and easy to implement, the water-soluble thickener is convenient to use, can be applied to oil production and increase the recovery ratio and has a hydrophobic function as wellas hydrophilic performance, besides, the water-soluble thickener has good viscoelasticity after being dissolved in water, and by comparison of the water-soluble thickener with conventional polymer thickeners commonly used at present in oil field sewage and water with mineralization degree of 150,000 mg / L after application, and the water-soluble thickener is found to better increase viscosity of liquids.

Description

technical field [0001] The invention relates to the technical field of thickeners, and relates to stearyl methyl propionate and a preparation method thereof, a water-soluble thickener and a preparation method thereof. Background technique [0002] At present, the polymer thickeners used in the process of oilfield development and enhanced recovery have poor adaptability and cannot meet the purpose of oilfield development and enhanced recovery, especially oilfield sewage and water with a salinity of 150,000 mg / L. application requirements. Contents of the invention [0003] The invention provides a stearyl methyl propionate and its preparation method, a water-soluble thickener and its preparation method, which overcomes the deficiencies of the prior art above, and can effectively solve the problems of current oil field development and enhanced oil recovery The polymer thickener used in the process has poor adaptability and cannot meet the purpose of oilfield development and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C69/54C08F220/56C08F220/58C08F220/18C09K8/588C09K8/584
Inventor 王国瑞曹金园王安张银燕
Owner KARAMAY ZHENGCHENG
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