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Method for manufacturing oil solubility thick oil thinner for thick oil pipe-line transportation

A heavy oil viscosity reducer and pipeline transportation technology, which is applied in pipeline systems, chemical instruments and methods, mechanical equipment, etc., can solve the problems of insignificant viscosity reduction effect, improve penetration ability and dispersion ability, and have good viscosity reduction effect , Improve the effect of dispersion and anti-sedimentation

Inactive Publication Date: 2008-08-20
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, oil-soluble viscosity reducers are mainly used for heavy oil transportation, but their application in heavy oil production has just started, and most of them are limited to laboratory research and field tests, and the viscosity reduction effect is not significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method for an oil-soluble heavy oil viscosity reducer used in heavy oil pipeline transportation, comprising the steps of:

[0022] 1) Preparation of methacrylate-β-hydroxyethyl ester and dodecylbenzenesulfonic acid blend: according to methacrylate-β-hydroxyethyl ester (commercially available): dodecylbenzenesulfonic acid (commercially available )=5ml: 15ml, the addition of catalyzer p-toluenesulfonic acid is 0.8% of the total amount of methacrylic acid-beta-hydroxyethyl ester and dodecylbenzenesulfonic acid, and the addition of inhibitor hydroquinone is methyl 0.65% of the total amount of acrylate-β-hydroxyethyl ester and dodecylbenzenesulfonic acid, prepare raw materials; put each raw material in the reaction bottle, use toluene as solvent, add toluene in the reaction bottle, according to the method of methacrylic acid-β -Hydroxyethyl ester=5:15ml, add toluene, feed nitrogen, heat at 120°C, stir and react for 6h, wash the resulting product with alkali (aq...

Embodiment 2

[0026] A preparation method for an oil-soluble heavy oil viscosity reducer used in heavy oil pipeline transportation, comprising the steps of:

[0027] 1) Preparation of -β-hydroxyethyl methacrylate and dodecylbenzenesulfonic acid blend: according to -β-hydroxyethyl methacrylate (commercially available): dodecylbenzenesulfonic acid=7ml: 8ml, the addition of catalyst p-toluenesulfonic acid is 0.2% of the total amount of methacrylic acid-β-hydroxyethyl ester and dodecylbenzenesulfonic acid, and the addition of polymerization inhibitor hydroquinone is methacrylic acid-β- 0.15% of the total amount of hydroxyethyl ester and dodecylbenzenesulfonic acid, prepare raw materials; put each raw material in the reaction bottle, use toluene as solvent, add toluene in the reaction bottle, according to the method of methacrylic acid-β-hydroxyethyl ester : Toluene=7: 20ml adds toluene, feeds nitrogen, and heating temperature is 110 ℃, and stirring reaction 5h, the gained product is washed with...

Embodiment 3

[0031] A preparation method for an oil-soluble heavy oil viscosity reducer used in heavy oil pipeline transportation, comprising the steps of:

[0032] 1) Preparation of hydroxypropyl methacrylate and dodecylbenzenesulfonic acid blend: according to hydroxypropyl methacrylate (commercially available): dodecylbenzenesulfonic acid=5ml: 10ml, catalyst p-toluenesulfonic acid The acid addition is 0.5% of the total amount of hydroxypropyl methacrylate and dodecylbenzenesulfonic acid, and the addition of inhibitor hydroquinone is the total amount of hydroxypropyl methacrylate and dodecylbenzenesulfonic acid. 0.45% of the amount, prepare raw materials; put each raw material in the reaction flask, use toluene as solvent, add toluene in the reaction flask, add toluene according to hydroxypropyl methacrylate: toluene=7: 20ml, pass into nitrogen, heating temperature at 120°C, stirred for 5 hours, washed the resulting product with alkali (aqueous NaOH solution with a mass concentration of 5...

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PUM

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Abstract

The invention relates to the preparation method of oil-solute viscosity reducer used for the transportation of heavy oil tubes, which is characterized by comprising the following steps, first the preparation of the mixture of methacrylate with hydroxyl and dodecylbenzene sulfonic acid, second the preparation of acrylate high esters, third the preparation of oil-solute heavy oil viscosity reducer, according to the rate of the acrylate high esters : the mixture of methacrylate with hydroxyl and dodecylbenzene sulfonic acid equal to 1.0 to 4.5 ml : 1.0 to 7.5 ml, initiator ammonium persulfate, the mass fraction of which takes up 0.8 to 1.6 percent of the acrylate high esters and the mixture of methacrylate with hydroxyl and dodecylbenzene sulfonic acid, is added, the reaction is kept for 6 to 8 hours with the temperature of 70 DEG C, then the oil-solute heavy oil viscosity reducer can be got, the method is characterized by the good viscosity reducing effect, the simple process and the low cost.

Description

technical field [0001] The invention relates to a preparation method of an oil-soluble viscosity reducer used in heavy oil pipeline transportation. Background technique [0002] With the continuous increase of heavy oil production, the high viscosity of heavy oil and the deposition of organic matter have brought great difficulties to its storage and transportation. [0003] The advancement and economy of heavy oil gathering and transportation technology directly affect the comprehensive economic and technical indicators of crude oil production. For a long time, the traditional methods of heating and emulsifying viscosity-reducing transportation for high-condensation and high-viscosity crude oil have been mainly used at home and abroad. The former has a large fuel consumption and high cost, while the latter will have post-processing (such as dehydration) problems, and it is not easy to Suitable for heavy oil with low water content. In addition, the viscosity-reducing transp...

Claims

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Application Information

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IPC IPC(8): C09K8/52F17D1/16
Inventor 陈艳玲王颖
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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