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Associative oil-soluble high polymer drag reducer and application thereof

A polymer and drag reducer technology, applied in the field of polymer compounds and piping systems, can solve irreversible mechanical degradation and other problems, and achieve good shear resistance and good shear resistance

Active Publication Date: 2021-06-22
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, especially the deficiencies that the existing polyalphaolefin drag reducers are susceptible to irreversible mechanical degradation under high shear, the present invention provides an associative oil-soluble high polymer drag reducer Agents and their applications

Method used

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  • Associative oil-soluble high polymer drag reducer and application thereof
  • Associative oil-soluble high polymer drag reducer and application thereof
  • Associative oil-soluble high polymer drag reducer and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] An associative oil-soluble high polymer drag reducer is composed of a proton donor polymer and a proton acceptor polymer; the mass ratio of the proton donor polymer to the proton acceptor polymer is 1:1.

[0049] The proton-donating polymer is prepared by the following method:

[0050] Add 100mL of deionized water into a three-necked flask, add 4g of Triton X-100, and start magnetic stirring after feeding in nitrogen and keep the stirring speed at 300rpm. After 10min, add 21g of lauryl methacrylate, 10g of styrene, and Acrylic acid 2g, continue to blow nitrogen for 30min, add initiator solution (obtained by dissolving 0.42g potassium persulfate and 0.20g sodium bisulfite in 30mL water) at 25°C to initiate the reaction, keep 25°C and stir at 300rpm for 10 hours , to obtain proton-donating polymer emulsion; add 30mL absolute ethanol to 50mL proton-donating polymer emulsion, precipitate polymer, filter, dry to obtain proton-donating polymer lauryl methacrylate-styrene-meth...

Embodiment 2

[0060] An associative oil-soluble high polymer drag reducer is composed of a cationic donor polymer and a proton acceptor polymer; the mass ratio of the cationic donor polymer to the proton acceptor polymer is 1:1.

[0061] The cationic donor polymer is prepared by the following method:

[0062] Add 100mL of deionized water into a three-necked flask, add 4g of Triton X-100, and start magnetic stirring after feeding in nitrogen and keep the stirring speed at 300rpm. After 10min, add 21g of lauryl methacrylate, 10g of styrene, and Sodium acrylate 1.0g, continue to pass nitrogen for 30min, turn on the heating, add initiator solution (obtained by dissolving 0.42g potassium persulfate and 0.20g sodium bisulfite in 30mL water) at 25°C to initiate the reaction, keep 25°C and stir React at a speed of 300 rpm for 10 hours to obtain a cationic donor polymer emulsion; add 30 mL of absolute ethanol to 50 mL of a cationic donor polymer emulsion to precipitate a polymer, filter, and dry to ...

Embodiment 3

[0069] An associative oil-soluble high polymer drag reducer is composed of a cationic donor polymer and a proton acceptor polymer; the mass ratio of the cationic donor polymer to the proton acceptor polymer is 1:1.

[0070] The cationic donor polymer is prepared by the following method:

[0071] Add 100mL of deionized water into a three-necked flask, add 5g of Triton X-100, start magnetic stirring after nitrogen gas and keep the stirring speed at 300rpm. After 10min, add 25g of lauryl methacrylate, 23g of styrene, and 1.5 g of zinc acrylate, continue to pass nitrogen for 30 minutes, turn on the heating, add an initiator solution (obtained by dissolving 0.42 g of potassium persulfate and 0.20 g of sodium bisulfite in 30 mL of water) at 25 ° C to initiate the reaction, keep at 25 ° C and stir React at a speed of 300 rpm for 12 hours to obtain a cationic donor polymer emulsion; add 30 mL of absolute ethanol to 50 mL of a cationic donor polymer emulsion to precipitate a polymer, f...

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Abstract

The invention provides an associated oil-soluble high polymer drag reducer and application thereof. The high polymer drag reducer comprises a proton donor polymer or a cation donor polymer and a proton acceptor polymer, the mass ratio of the proton donor polymer or the cation donor polymer to the proton acceptor polymer is 1: 1. The high polymer drag reducer has both drag reduction and shear resistance, and overcomes the defects that the existing poly-alpha-olefin drag reducer is easy to break of molecular chains and shear degradation in the application process; and the preparation method of each component in the polymerization inhibitor has the advantages of mild reaction conditions, simple and safe operation process and low requirements on production equipment.

Description

technical field [0001] The invention relates to an associative oil-soluble high polymer drag reducer and its application, belonging to the technical field of high molecular compounds and pipeline systems. Background technique [0002] Drag reducer is a kind of additive that can reduce drag and increase transmission with only a small amount of injection. It can increase the delivery volume of a pipeline while maintaining the original design pressure of a section of pipeline or maintain the original delivery volume. In this case, reduce the delivery pressure of the pipeline. According to the difference in solubility of drag reducers, they can be divided into two categories: oil-soluble and water-soluble; according to the chemical structure of drag reducers, they can be divided into polymer drag reducers and surfactant-based drag reducers. At present, the polymer drag reducers that have been practically used in the industrial oil pipeline transportation are polymer polymers th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/10F17D1/17C08F220/18C08F212/08C08F220/06C08F226/06
CPCC08L33/064C08L39/00F17D1/17C08F220/1812C08F212/08C08F220/06C08F226/06
Inventor 张笑来卢勇张长桥李辰昊
Owner SHANDONG UNIV