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Emulsion type asphalt colloid dispersant and preparation method thereof

An emulsion type and dispersant technology, which is applied in building components, building insulation materials, construction, etc., can solve the problems of poor wax removal effect, achieve high wax melting rate, improve stability, and improve dispersion force

Pending Publication Date: 2021-07-16
四川澳凯化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the water-based asphalt colloid dispersant is safe to use, it has poor wax removal effect and needs to be used at a higher temperature

Method used

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  • Emulsion type asphalt colloid dispersant and preparation method thereof
  • Emulsion type asphalt colloid dispersant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] An emulsion-type asphalt colloid dispersant, which consists of 600mL oil phase solvent, 30mL emulsifier, 10mL alkaline conditioner, and 360mL water. Wherein the oil phase solvent is a mixture of petroleum ether, benzene, and cyclohexylamine in a ratio of 7:7:6, the emulsifier is fatty alcohol polyoxyethylene ether, and the alkaline regulator is sodium hydroxide.

[0021] The preparation method is as follows: adding an emulsifier and an alkaline regulator into water for stirring and dissolving to obtain a mixed solution; adding an oil phase solvent to the mixed solution and emulsifying at a high speed to obtain the emulsion-type asphalt colloidal dispersant .

Embodiment 2

[0023] An emulsion-type asphalt colloid dispersant, which consists of 800mL oil phase solvent, 60mL emulsifier, 15mL alkaline regulator and 125mL water. Wherein the oil phase solvent is a mixture of petroleum ether, toluene, and cyclohexylamine at 7:7:6, the emulsifier is fatty alcohol polyoxyethylene ether, and the alkaline regulator is sodium oxalate.

[0024] The preparation method is as follows: adding an emulsifier and an alkaline regulator into water for stirring and dissolving to obtain a mixed solution; adding an oil phase solvent to the mixed solution and emulsifying at a high speed to obtain the emulsion-type asphalt colloidal dispersant .

Embodiment 3

[0026] An emulsion-type asphalt colloid dispersant, which consists of 700mL oil phase solvent, 50mL emulsifier, 10mL alkaline regulator, and 240mL water. Wherein the oil phase solvent is a mixture of petroleum ether, xylene, and cyclohexylamine at 7:7:6, the emulsifier is alkylphenol polyoxyethylene ether, and the alkaline regulator is sodium citrate.

[0027] The preparation method is as follows: adding an emulsifier and an alkaline regulator into water for stirring and dissolving to obtain a mixed solution; adding an oil phase solvent to the mixed solution and emulsifying at a high speed to obtain the emulsion-type asphalt colloidal dispersant .

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Abstract

The invention discloses an emulsion type asphalt colloid dispersant and a preparation method thereof. The emulsion type asphalt colloid dispersant comprises the following raw materials in percentage by volume: 60-80% of an oil-phase solvent, 3-6% of an emulsifier, 1-1.5% of an alkaline regulator and the balance of water, wherein the oil phase solvent is one or more of petroleum ether, benzene, toluene, xylene, cyclohexylamine and diethylamine; and the emulsifier is a polyoxyethylene ether surfactant. The asphalt colloid dispersant is an emulsion type asphalt colloid dispersant and has the advantages of high wax dissolution rate of an oil-based asphalt colloid dispersant and safe use of a water-based asphalt colloid dispersant, and the performance of the asphalt colloid dispersant can meet the requirements in SY / T 6300-2009 technical conditions of paraffin removal and inhibition agents for oil extraction.

Description

technical field [0001] The invention relates to the technical field of colloid dispersion in oilfields, in particular to an emulsion-type asphalt colloid dispersant and a preparation method thereof. Background technique [0002] During the crude oil extraction process, the wax and bituminous colloids dissolved in the formation crude oil will gradually precipitate out with changes in temperature, pressure and other conditions. The precipitated paraffin microcrystals and asphalt colloids will deposit on the surface of the pipe wall, affecting the oil recovery rate, recovery rate, and transportation capacity. Therefore, wax removal and anti-wax operations and asphalt colloid dispersion operations are required in oil fields. At present, oil well colloid dispersion technologies commonly used in oil fields mainly include mechanical methods, thermal methods, microbial methods, and chemical colloid dispersion methods. Among them, the chemical colloid dispersion technology has simpl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L95/00
CPCC08J3/03C08J2395/00
Inventor 谢萍毅蔡潇潇李春江左琦
Owner 四川澳凯化工有限公司
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