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Alkylaromatic hydrocarbon substituted ethylene monomer-containing oil-soluble polymer viscosity reducer and microwave preparation method thereof

A technology of oil-soluble viscosity reducer and alkyl aromatic hydrocarbon, applied in the field of oil-soluble viscosity reducer, can solve the problem of no heavy oil, high-efficiency viscosity-reducing agent, etc., to reduce viscosity, demonstrate technological progress, and improve the energy efficiency of pipeline transportation and operational safety

Inactive Publication Date: 2015-12-09
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the above patents that there are many kinds of monomers for viscosity reducers, and various polymers can be obtained by polymerization, but there is no high-efficiency viscosity reducer specifically for heavy oil viscosity reduction

Method used

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  • Alkylaromatic hydrocarbon substituted ethylene monomer-containing oil-soluble polymer viscosity reducer and microwave preparation method thereof
  • Alkylaromatic hydrocarbon substituted ethylene monomer-containing oil-soluble polymer viscosity reducer and microwave preparation method thereof
  • Alkylaromatic hydrocarbon substituted ethylene monomer-containing oil-soluble polymer viscosity reducer and microwave preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Perform binary polymerization of monomer 1 and monomer 2 in proportion, after accurate weighing, add to a quartz microwave reaction tube, add a reaction solvent, fully stir the reactants, and all the reactants are dissolved in the solvent.

[0039] (2) Add the initiator in proportion, purge the reactor with nitrogen, and close the reactor. Raise the temperature to 90°C and react for 1.0h.

[0040] (3) After the reaction is over, after cooling, under the condition of rapid stirring, slowly drop the reaction product into a large amount of solvent with a dropper, and rinse the reactor with a small amount of reaction solvent, transfer the remaining product into a large amount of methanol, and stir for 2 hours , so that all the polymer is precipitated.

[0041] (4) After the stirring is completed, suction filtration is carried out with a Buchner funnel, dried in the air, and weighed to obtain a polymer.

[0042] (5) Dissolve the viscosity reducer in a certain solvent t...

Embodiment 2

[0051] (1) Perform binary polymerization of monomer 1 and monomer 2 in proportion, after accurate weighing, add to a quartz microwave reaction tube, add a reaction solvent, fully stir the reactants, and all the reactants are dissolved in the solvent.

[0052] (2) Add the initiator in proportion, purge the reactor with nitrogen, and close the reactor. Raise the temperature to 120°C and react for 1.5h.

[0053] (3) After the reaction is over, after cooling, under the condition of rapid stirring, slowly drop the reaction product into a large amount of solvent with a dropper, and rinse the reactor with a small amount of reaction solvent, transfer the remaining product into a large amount of methanol, and stir for 2 hours , so that all the polymer is precipitated.

[0054] (4) After the stirring is completed, suction filtration is carried out with a Buchner funnel, dried in the air, and weighed to obtain a polymer.

[0055] (5) Dissolve the viscosity reducer in a certain solvent ...

Embodiment 3

[0064] (1) Perform binary polymerization of monomer 1 and monomer 2 in proportion, after accurate weighing, add to a quartz microwave reaction tube, add a reaction solvent, fully stir the reactants, and all the reactants are dissolved in the solvent.

[0065] (2) Add the initiator in proportion, purge the reactor with nitrogen, and close the reactor. Raise the temperature to 90°C and react for 1.0h.

[0066] (3) After the reaction is over, after cooling, under the condition of rapid stirring, slowly drop the reaction product into a large amount of solvent with a dropper, and rinse the reactor with a small amount of reaction solvent, transfer the remaining product into a large amount of methanol, and stir for 2 hours , so that all the polymer is precipitated.

[0067] (4) After the stirring is completed, suction filtration is carried out with a Buchner funnel, dried in the air, and weighed to obtain a polymer.

[0068] (5) Dissolve the viscosity reducer in a certain solvent t...

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Abstract

The invention relates to an oil-soluble polymer viscosity reducer for reducing the viscosity of heavy oil, and a microwave synthesis method thereof. The oil-soluble viscosity reducer for the heavy oil is obtained through the following steps: synthesizing alkylaromatic hydrocarbon substituted ethylene containing different carbon chain lengths and aryl groups with alkylaromatic hydrocarbon substituted ethylene as a basic construction unit, and polymerizing alkylaromatic hydrocarbon substituted ethylene, octadecyl acrylate, maleic anhydride and acrylic acid monomers. The introduction of the aryl groups to the alkylaromatic hydrocarbon substituted ethylene monomer contained in the polymer improves the cooperative viscosity reduction effect of the heavy oil and realizes large innovation. Microwaves are used to heat the internal of molecules in order to rapidly heat reactants, so a polymerization reaction is fast, and the prepared viscosity reducer has the characteristics of good distribution of high molecular weight, and very good viscosity reduction effect on super heavy oil.

Description

technical field [0001] The invention relates to an oil-soluble viscosity reducer, which is used for oilfield crude oil pipeline transportation and heavy oil production, and is especially suitable for oil-soluble viscosity reducer for heavy oil pipeline transportation and production. Background technique [0002] With the increasing demand for oil, high-quality crude oil is no longer enough to meet human needs, and with the gradual increase in oil extraction, more and more heavy oil is produced, and the application of heavy oil is also becoming more and more serious. right in front of you. Because heavy oil is rich in a large amount of colloids, asphaltenes and solid hydrocarbons, and colloids and asphaltenes have large molecular weight and strong polarity, hydrogen bonds are easily formed between molecules, which makes the molecules have strong cohesion, resulting in thick oil. Due to the large internal friction when the oil flows, it cannot flow when the temperature is low...

Claims

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Application Information

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IPC IPC(8): C08F212/12C08F220/18C08F220/56C08F212/14C08F220/06C08F222/08C09K8/588F17D1/17
Inventor 朱丽君夏道宏井晓慧李爱芬周玉路项玉芝
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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