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Water-based wax remover and preparation method thereof

A technology for removing and preventing wax and water-based, which is applied in the directions of chemical instruments and methods, drilling compositions, etc., can solve the problems such as the preparation method needs to be improved, and achieves the effects of wide applicable temperature range, safe and convenient production, and energy saving.

Active Publication Date: 2020-10-02
WEIHAI XIANGYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no real and efficient water-based wax remover and anti-wax agent in the prior art, and the determination of its formula and the determination of the corresponding preparation methods need to be improved.

Method used

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  • Water-based wax remover and preparation method thereof
  • Water-based wax remover and preparation method thereof
  • Water-based wax remover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A water-based wax remover, comprising the following raw material components in percentage by weight:

[0036]

[0037] Among them, the melting wax dispersant is a 3:1 mixture of methyl stearate polyoxyethylene ether and polyethylene glycol dioleate, and the wetting reversal agent is polyoxyethylene alkyl alcohol ether sulfate salt, solubilizing and dispersing The agent is coconut oil fatty acid diethanolamide, and the alcohol co-solvent is a mixture of methanol, ethanol, and n-butanol according to the ratio of 3:2:1.

[0038] The preparation method of the above water-based wax remover and anti-wax agent: add wax-melting dispersant, wetting reversal agent and solubilizing dispersant to the reaction kettle and mix evenly, then add alcohol co-solvent and stir for half an hour, add water and stir until uniform.

Embodiment 2

[0040] A water-based wax remover, comprising the following raw material components in percentage by weight:

[0041]

[0042] Among them, the melting wax dispersant is a 3:1 mixture of methyl stearate polyoxyethylene ether and fatty acid methyl ester ethoxylate sulfonate, the wetting reversal agent is polyoxyethylene alkylphenol ether, and the solubilizing and dispersing agent It is a 1:1:1 mixture of polyethylene glycol dioleate, fatty alcohol polyoxyethylene ether, and nonylphenol polyoxyethylene ether. The alcohol co-solvent is methanol, ethanol, and n-butanol according to the ratio of 3:2:1 mixture.

[0043] The preparation method of the above water-based wax remover and anti-wax agent: add alcohol co-solvent, wax-melting dispersant, wetting reversal agent and stir for half an hour in the reaction kettle, then add water and solubilizing and dispersing agent in turn and stir until uniform .

Embodiment 3

[0045] A water-based wax remover, comprising the following raw material components in percentage by weight:

[0046]

[0047] Among them, the melting wax dispersant is a 1:1 mixture of polyethylene glycol dioleate and fatty acid methyl ester ethoxylate sulfonate, the wetting reversal agent is polyoxyethylene alkylphenol ether, and the solubilizing and dispersing agent is Polyethylene glycol dioleate, fatty alcohol polyoxyethylene ether, nonylphenol polyoxyethylene ether 1:1:1 mixture, alcohol co-solvent is methanol, ethanol, n-butanol according to the ratio of 3:2:1 mixture.

[0048] The preparation method of the above water-based wax remover and anti-wax agent: add wax-melting dispersant, wetting reversal agent and solubilizing dispersant to the reaction kettle and mix evenly, then add alcohol co-solvent and stir for half an hour, add water and stir until uniform.

[0049] Raw material component content value screening experiment:

[0050] According to the data in Table...

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Abstract

The invention proposes a water-based wax remover and preparation method thereof, which is composed of a wax-melting dispersant, a wetting reversal agent, a solubilizing dispersant, an alcohol co-solvent, and water or simulated brine. The wax-melting dispersant , wetting and inversion agent, solubilizing and dispersing agent and alcohol co-solvent account for 15% to 35% of the water-based wax removing and preventing agent by mass; its preparation method comprises the following steps: After the solvent and the solubilizing and dispersing agent are mixed evenly, an alcohol co-solvent is added thereto, and after mixing, water or simulated brine is added to prepare a water-based wax remover and anti-wax agent. The invention relates to a water-based wax remover and anti-wax agent and a preparation method thereof. The water-based wax remover and preventer can not only prevent wax but also remove wax, and is safer and more efficient than the conventionally used emulsion-type wax remover and preventer, and has no peculiar smell , No pollution, high flash point.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploration, collection and transportation, and in particular relates to a water-based wax remover and a preparation method thereof. Background technique [0002] Most of the crude oil mined in my country contains a certain amount of wax. The wax in the crude oil in the formation usually exists in a dissolved state. However, during the extraction of crude oil, the crude oil produced by the oil well is mined from the underground and transported to the ground. , the temperature and pressure of the crude oil liquid continue to drop, and the ability of the crude oil to dissolve wax gradually decreases. When the temperature of the crude oil liquid is lower than the melting point of the wax in it, the wax begins to crystallize gradually, and the precipitated wax will deposit around the well wall and produce In the casing, it will cause damage to the reservoir, cause problems such as sucker rod overload,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/524
CPCC09K8/524
Inventor 李大鹏王国瑞李洪社程晓婷
Owner WEIHAI XIANGYU TECH