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Dendritic reverse demulsifier

A reverse-phase demulsifier and dendritic technology, which is applied in the field of dendritic reverse-phase demulsifiers, can solve the problems of large dosage and long processing time, and achieve the effect of improving water quality and improving demulsification efficiency

Inactive Publication Date: 2011-11-09
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different types of inverse demulsifiers have obvious differences in their functions and effects in the process of inverse demulsification of oilfield sewage. Generally speaking, i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Example. This example consists of dendritic polyamide-amine (PAMAM), epichlorohydrin, dimethylamine, and epichlorohydrin of the 1.0 to 3.0 generation; the ratio is: in the total weight of 100, 1.0 The dendritic polyamide-amine (PAMAM) from generation to 3.0 accounts for 8%, epichlorohydrin 35%, and dimethylamine 15% to form an aqueous solution containing 58% of the above composition.

[0010] In this example, firstly synthesize dendritic polyamide-amine (PAMAM) from generation 1.0 to generation 3.0;

[0011] The reaction includes two processes: one is the Michael addition reaction of ethylenediamine and methyl acrylate. The polyester obtained by the reaction is then subjected to amidation reaction with ethylenediamine to obtain an amide. The Michael addition and amidation reactions are carried out alternately. Obtain macromolecular dendrimers: polyamide-amine; to synthesize dendritic polyamide-amines of generation 1.0, 2.0 and 3.0, you need to synthesize 0.5 generation first...

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PUM

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Abstract

The invention relates to a dendritic reverse demulsifier used for crude oil demulsification. The dendritic reverse demulsifier consists of the following components in percentage by weight: 0.1-10% of 1.0-3.0 generation of dendritic polyamide-amine, 10-45% of epoxy chloropropane and 5-22% of dimethylamine, and thus forming different concentrations of aqueous solutions containing 10-40% of the above compounds. The dendritic reverse demulsifier provided by the invention can quickly destroy the oil-water emulsion interface, improve demulsification efficiency and improve the quality of treated water.

Description

Technical field [0001] The invention is a dendritic inverse demulsifier for crude oil demulsification. Involved in the technical field of the petroleum industry. Background technique [0002] With the rapid development of oil fields and the use of a large number of electric submersible pumps, the oil production volume and water content have increased. Due to the high speed shear of the electric submersible pump, the crude oil is seriously emulsified in the water, which increases the turbidity of the crude oil dehydration, and puts forward higher requirements on the performance of the inverse demulsifier. Commonly used inverse demulsifiers include polyferric sulfate, polyaluminum chloride, polyacrylamide, ammonia-epichlorohydrin polycondensate, and ammonia-dimethylamine-epichlorohydrin polymer, etc. Someone will follow up with polyamide-amine Dendrimers are used to demulsify crude oil. Different types of inverse demulsifiers have obvious differences in the effects and effects o...

Claims

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Application Information

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IPC IPC(8): C10G33/04
Inventor 李锦昕徐诚尹国栋赵凤英
Owner BC P INC CHINA NAT PETROLEUM CORP
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