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Demulsifying agent for treating thick oil and preparation method of demulsifying agent

A technology for demulsifier and heavy oil, applied in the field of demulsifier for handling heavy oil and its preparation, can solve the problems of strong corrosion of equipment, poor demulsification and dehydration performance, unenvironmental protection, etc., achieves good water quality and is convenient for large-scale production , the effect of fast demulsification

Active Publication Date: 2019-04-12
克拉玛依新科澳石油天然气技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a demulsifier for treating heavy oil and a preparation method thereof, which overcomes the deficiencies of the prior art above, and can effectively solve the problems of poor demulsification and dehydration performance, strong corrosion to equipment and problems of existing oilfield crude oil demulsifiers. environmental issues

Method used

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  • Demulsifying agent for treating thick oil and preparation method of demulsifying agent

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Embodiment 1

[0021] Embodiment 1: The demulsifier for processing heavy oil, raw materials include polyoxyethylene polyoxypropylene block copolymer 10% to 60%, keto acid 1% to 20%, acetylenic alcohol 0.01% to 5% by weight percentage, The balance is water.

[0022] The demulsifier for treating heavy oil of the present invention comprises polyoxyethylene polyoxypropylene block copolymer, keto acid, acetylenic alcohol and water as raw materials, can be quickly dispersed into oil-water emulsion, and has good demulsification performance on crude oil emulsion. The acidity of component keto acids is weaker than that of acetic acid, propionic acid, butyric acid, succinic acid, glutaric acid, adipic acid, fumaric acid, maleic acid and citric acid, and its corresponding corrosiveness is also low. On the one hand, alcohol has the function of solvent, on the other hand, it has anti-rust and anti-corrosion effect, which solves the corrosion problem of existing demulsifier products very well. Moreover, ...

Embodiment 2

[0023] Embodiment 2: The demulsifier for the treatment of heavy oil, raw materials include polyoxyethylene polyoxypropylene block copolymer 10% or 60%, keto acid 1% or 20%, acetylenic alcohol 0.01% or 5% by weight percentage, The balance is water.

Embodiment 3

[0024] Example 3: As an optimization of the above example, it is obtained according to the following method: heat the required amount of polyoxyethylene polyoxypropylene block copolymer to 30°C to 60°C in the reactor, and add the required amount to the reactor The required amount of keto acid, acetylenic alcohol and the rest of water are used to obtain a mixed material; the mixed material is kept warm at 30°C to 60°C and stirred until the material is completely dissolved to form a uniform liquid, and a demulsifier for treating heavy oil is obtained.

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Abstract

The invention relates to the technical fields of petroleum demulsifying agents and preparation thereof, and relates to a demulsifying agent for treating thick oil and a preparation method of the demulsifying agent. Raw materials of the demulsifying agent comprise a polyoxyethylene polyoxypropylene block copolymer, ketonic acid, alkynol and water. The polyoxyethylene polyoxypropylene block copolymer is heated in a reactor, and then is mixed and dissolved with the ketonic acid, the alkynol and water, so that the demulsifying agent for treating thick oil is obtained. The demulsifying agent for treating the thick oil has the characteristics of high demulsification speed and good water quality after separation, can particularly being used to solve the problem that an acid-containing demulsifying agent product corrodes equipment, and has good anti-rust and anti-corrosion effects. According to the invention, the preparation process is simple, large-scale production is facilitated, and the obtained demulsifying effect for treating thick oil has excellent demulsifying effect and dewatering performance. Meanwhile, the raw materials do not contain sulfur, phosphorus, aromatic rings, chlorineand the like which are harmful to human bodies and to the environment, so that the demulsifying agent accords with the concept of safe and environment-friendly production.

Description

technical field [0001] The invention relates to the technical field of petroleum demulsifier and its preparation, and relates to a demulsifier for treating heavy oil and a preparation method thereof. Background technique [0002] With the continuous development of oilfield mining technology, the industry has successively researched and developed various oil recovery technologies, including water flooding, steam flooding, chemical flooding, fire flooding, tertiary oil recovery and other technologies. Crude oil emulsions are more stable. This has higher and higher requirements for demulsifiers, and more stringent requirements for their performance. [0003] Oilfield crude oil demulsification technology came into being along with the development of crude oil, and many mature methods including physical, biological and chemical methods have been formed so far. Among them, the chemical method achieves the purpose of demulsification of crude oil by adding one or more surfactant s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G33/04
CPCC10G33/04
Inventor 杨豫新高继红张坤朱晓明周润华
Owner 克拉玛依新科澳石油天然气技术股份有限公司
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