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Efficient emulsion breaker containing polymer for processing crude oil and preparation method thereof

A demulsifier and polymer technology, which is applied in the field of high-efficiency demulsifier for the treatment of crude oil containing polymers and its preparation, can solve the problems of reduced dehydration rate and slow dehydration speed, and achieve the effects of high dehydration rate and strong adaptability

Inactive Publication Date: 2015-09-30
克拉玛依市天明化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the continuous development of oil recovery technology, traditional demulsifiers can no longer meet the needs of industrial production, especially for polymer flooding produced fluid, a large number of polymers are distributed in the water phase and oil-water interface, resulting in enhanced stability of oil-water emulsion, demulsification The dehydration speed is slow and the dehydration rate is reduced

Method used

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  • Efficient emulsion breaker containing polymer for processing crude oil and preparation method thereof
  • Efficient emulsion breaker containing polymer for processing crude oil and preparation method thereof
  • Efficient emulsion breaker containing polymer for processing crude oil and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] (1) Synthesis of phenolic resin:

[0027] Add bisphenol A, tetraethylenepentamine and xylene into the reactor with stirring device, raise the temperature to 60°C, then add formaldehyde solution dropwise, keep the temperature at 70°C for polymerization reaction, then raise the temperature to 170°C at reduced temperature The xylene solvent and moisture are sloughed under the pressure condition, further condensation obtains phenolamine resin; In the phenolamine resin, bisphenol A, tetraethylenepentamine, weight percentage concentration are the formaldehyde solution three of 33% weight proportions as: 1: 6: 3; the molecular formula of phenolic amine resin is:

[0028]

[0029] (2) Synthesis of phenolic resin initiator:

[0030] Add the phenolamine resin and potassium hydroxide catalyst obtained in step (1) into a closed nitrogen-protected reactor, stir, stop heating when the temperature rises to 130°C, open the feed valve, and slowly add butylene oxide to carry out poly...

Embodiment 2

[0037] (1) Synthesis of phenolic resin:

[0038] Add bisphenol A, tetraethylenepentamine and xylene into the reactor with stirring device, raise the temperature to 50°C, then add formaldehyde solution dropwise, keep the temperature at 85°C for polymerization reaction, then rise to 160°C at reduced temperature The xylene solvent and moisture are sloughed under the pressure condition, further condensation obtains phenolamine resin; In the phenolamine resin, bisphenol A, tetraethylenepentamine, weight percentage concentration are the formaldehyde solution three of 33% weight proportions as: 1: 2: 5;

[0039] (2) Synthesis of phenolic resin initiator:

[0040] Add the phenolamine resin and potassium hydroxide catalyst obtained in step (1) into a closed nitrogen-protected reactor, stir, stop heating when the temperature rises to 130°C, open the feed valve, and slowly add butylene oxide to carry out polymerization reaction , ensure that the temperature is at 140°C, adjust the pres...

Embodiment 3

[0045] (1) Synthesis of phenolic resin:

[0046]Add bisphenol A, tetraethylenepentamine and xylene into the reactor with stirring device, raise the temperature to 70°C, then add formaldehyde solution dropwise, keep the temperature at 60°C for polymerization reaction, then raise the temperature to 180°C at reduced temperature The xylene solvent and moisture are sloughed under the pressure condition, further condensation obtains phenolamine resin; In the phenolamine resin, bisphenol A, tetraethylenepentamine, weight percentage concentration are the formaldehyde solution three of 33% weight proportions as: 1: 10: 0.5;

[0047] (2) Synthesis of phenolic resin initiator:

[0048] Add the phenolamine resin and potassium hydroxide catalyst obtained in step (1) into a closed nitrogen-protected reactor, stir, stop heating when the temperature rises to 130°C, open the feed valve, and slowly add butylene oxide to carry out polymerization reaction , make sure that the temperature is bet...

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Abstract

The invention discloses an efficient emulsion breaker containing polymer for processing crude oil and a preparation method thereof. Phenol-amine resin is used as an initiator, block polymerization is conducted between the phenol-amine resin and epoxybutane, epoxypropane and ethylene oxide under the action of a potassium hydroxide catalyst, and thus the efficient emulsion breaker containing the polymer for processing crude oil is obtained. The preparation method comprises the steps of synthesis of the phenol-amine resin for the initiator, synthesis of the phenol-amine resin initiator and synthesis of the efficient emulsion breaker containing the polymer for processing crude oil. The prepared emulsion breaker can increase the demulsification dehydration rate of crude oil emulsion driven by polymer and has great practical significance in production of oil fields.

Description

technical field [0001] The invention relates to a demulsifier and a preparation method thereof, in particular to a high-efficiency demulsifier suitable for processing crude oil containing polymers and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of oilfields, oilfields are gradually aging, and oil resources are facing an increasingly scarce situation. Petroleum is the lifeblood of my country's economic development, so the deep exploitation of petroleum and the improvement of crude oil recovery efficiency have become particularly important. [0003] As an important technology to enhance the recovery of water flooding reservoirs, polymer flooding technology has been widely used in various oil fields. Polymer flooding technology improves the recovery of crude oil. However, the large amount of polymer contained in the produced fluid increases the degree of emulsification and stability of crude oil. It is difficult ...

Claims

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Application Information

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IPC IPC(8): C08G65/06C08G65/08C08G65/18C08G14/073C10G33/04
Inventor 王明宪吕超慎娜娜刘莉许海涛杨利吴伟龙
Owner 克拉玛依市天明化工有限责任公司
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