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Crude oil demulsifier and production technology thereof

A production process and demulsifier technology, applied in the field of high-performance demulsifiers and their preparation, to achieve the effects of low cost, reduced pollution, and high demulsification efficiency

Inactive Publication Date: 2015-09-30
万达集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems existing in the existing polyether demulsifiers, the purpose of the present invention is to provide a method for preparing a high-performance demulsifier, which uses a high-efficiency catalyst and a specific process to prepare a high-molecular-weight phenolic resin demulsifier to obtain a high-performance demulsifier. demulsifier

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A crude oil demulsifier, comprising octylphenol resin, xylene, potassium hydroxide, propylene oxide, and ethylene oxide; based on 100% by weight of the demulsifier, 10% of octylphenol resin and 15% to 25% of xylene , potassium hydroxide 0.1%~1%, propylene oxide 35%~45%, ethylene oxide 20%~33%, and the balance is glacial acetic acid.

Embodiment 2

[0028] A crude oil demulsifier is based on the weight of the demulsifier as 100%, 12% to 15% of octylphenol resin, 20% to 23% of xylene, 0.3% to 0.5% of potassium hydroxide, 40% to 43% of propylene oxide, Ethylene oxide is 27%~30%, and the balance is glacial acetic acid.

Embodiment 3

[0030] A crude oil demulsifier is based on the weight of the demulsifier as 100%, 12% octylphenol resin, 20% xylene, 0.3% potassium hydroxide, 40.5% propylene oxide, 27% ethylene oxide, and the balance is ice acetic acid.

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Abstract

The invention relates to demulsifier, in particular to high-performance demulsifier for oil field crude oil dehydrating processing and a preparing method of the high-performance demulsifier. The crude oil demulsifier comprises, by mass, 12% of octyl phenol resin, 20% of xylene, 0.3% of potassium hydroxide, 40.5% of epoxypropane, 27% of ethylene oxide and the balance glacial acetic acid. According to the crude oil demulsifier production technology, the high molecular weight octyl phenol resin is prepared, double bonds are introduced in the high molecular weight octyl phenol resin, the polymerization reaction is carried out on the molecular weight octyl phenol resin and the epoxy compound, and the target product-crude oil demulsifier including the double-bond compound is prepared. Compared with the prior art, the demulsification efficiency of the crude oil demulsifier is high. The cost of the crude oil demulsifier is low. According to the crude oil demulsifier, the nonyl phenol is replaced with octyl phenol, and the pollution to the water is reduced.

Description

technical field [0001] The invention relates to a demulsifier, in particular to a high-performance demulsifier used for oil field crude oil dehydration treatment and a preparation method thereof. Background technique [0002] With the development of the world's petroleum industry, the amount of oil production is increasing day by day, which makes the amount of crude oil emulsion increase day by day. Especially after water injection is used to enhance oil recovery, the water content of crude oil increases significantly, and most of the crude oil is extracted in the form of oil-water emulsion. . Crude oil production fluid contains a large amount of water and inorganic salts, which brings great difficulties to oil and gas gathering and transportation and crude oil refining, so dehydration and desalination must be carried out. In order to solve the problems in the process of oil and gas gathering and transportation, a large amount of chemical agents must be used. The ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
Inventor 巴文远赵志强巴银华曲春林
Owner 万达集团股份有限公司
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